Accuenergy U - FAQ

General Operation, Setup, and Specification


  1. What do I need to do for the initial set up and programming of my meter?

    You will need to set the Voltage and current wiring mode, PT ratio and CT ratio. If no PTs were used, leave this setting as default. Information on the set up can be found in the ‘system parameter setting’ section of the user manual.

    Also if communication is needed:

    If Serial communication is to be used, you need to set the parity, baud rate and device address of the meter. NOTE: The default parity, baud rate and device address can also be used.

    If Ethernet communication is to be used, you need to set the network settings and the device address on the meter; also make sure the baud rate 2 is set as “38400” and parity 2 as “none 1”.

  2. How do I know what wiring mode to select on the meter?

    The wiring mode is based on your wiring configuration. You can find this in the “Wiring” section of the user manual.


  3. Where do I view the energy KWh consumption on the meter?

    Acuvim II series:

    The energy consumption can be found on the ‘imp kWh’ screen. This can be found by pressing the ‘E’ key one or more times on the meter screen.

    Acuvim L series:

    The energy consumption can be found on the ‘Ep imp’ screen. This can be found by pressing the ‘E’ key one or more times on the meter screen.

    AcuRev 2000 series:

    To view energy consumption on the AcuRev 2000 series, press the ‘left’ or ‘right’ key on the main screen until you select the ‘E’ option, after which you press ‘OK’.

    AcuDC243:

    The energy consumption can be found on the E1 screen. This can be found by pressing ‘V/A’ on the meter screen.

    EV300:

    The energy consumption can be found on the EP screen by pressing the 'E' button on the meter screen.


  4. How do I get the monthly KWh consumption on the meter?

    The meter displays accumulated energy reading. In order to know what the monthly consumption is, you can either take the readings from the previous month and subtract it from the current month OR reset the energy reading every month after noting down the energy consumption.


  5. How do I clear my energy reading?

    Energy reading can be cleared from the meter under the system parameter settings or from the software in the ‘Energy’ section under the ‘Readings’ tab.

    Acuvim II series:

    On Meter:

    • Press ‘H’ and ‘V/A’ simultaneously for about 1 second; this will make the display blank, with a flashing cursor at the top.
    • Move this cursor to ‘Setting’ by pressing ‘P’ or ‘E’, and then pressing ‘V/A’; a PASSWORD screen will be displayed.
    • Enter your password by using ‘H’ to switch between digits, ‘P’ or ‘E’ to increase or decrease digits and ‘V/A’ to confirm password. NOTE: if you didn’t set a password, press ‘V/A’ on the password screen.
    • The parameter selection mode is displayed with ‘SYS’, ‘I/O’, ‘NET’ and ‘ALM’ showing on the screen. The cursor will be on ‘SYS’; press ‘V/A’. This will take you to the parameter settings screen.
    • Press ‘P’ or ‘E’ until you get to the ‘S22’ screen. NOTE: The number of the screen is on the top left corner of the screen.
    • On the ‘S22’ screen, press ‘V/A’ to modify the clear energy setting, and then press ‘P’ or ‘E’ to change the option to ‘Yes’; press ‘V/A’ to confirm the setting. After this is done, the meter energy reading has been cleared.
    • Press ‘H’ and ‘V/A’ simultaneously to make the screen blank, and then move the cursor to ‘Meter’ by pressing ‘P’ or ‘E’; press ‘V/A’ to go back to the meter screen.

    On Software:

    • For the Acuview software, click the ‘Real-Time Energy’ under the ‘Readings’ tab, and then click ‘Reset Energy’.
    • Using the Utility software, click on ‘Energy and Harmonics’ on the ‘Readings’ tab, and then click ‘Reset Energy’.

    Acuvim L series:

    On Meter:

    • Press ‘H’ and ‘V/A’ simultaneously for about 1 second; this will take you to the password screen.
    • Enter your password by using ‘H’ to switch between digits, ‘P’ or ‘E’ to increase or decrease digits and ‘V/A’ to confirm password. NOTE: if you didn’t set a password, press ‘V/A’ on the password screen. An ‘AddR’ screen should be displayed.
    • Press ‘V/A’ until you see a ‘dEL E 0’ screen; this is the clear energy screen.
    • Press ‘P’ or ‘E’ to change the ‘0’ to a ‘1’, then press ‘V/A’; this should take you to the ‘dEL E No’ screen.
    • Press ‘P’ or ‘E’ on this screen to change the ‘No’ to ‘Yes’. Press ‘V/A’ to confirm this and the energy will be cleared.
    • Press ‘H’ and ‘V/A’ simultaneously to exit the system setting mode and back to the meter mode.

    On Software:

    Click on ‘Energy and Harmonics’ or ‘Energy’ on the ‘Readings’ tab, and then click ‘Reset Energy’.

    AcuRev 2000 series:

    On Meter:

    • Press the ‘left’ or ‘right’ arrow key on the main screen until ‘SET’ is highlighted. Press ‘OK’
    • A password screen is displayed. Enter the password by using ‘up’ or ‘down’ key to change the digits and ‘left’ or ‘right’ key to switch digits. When the password has been entered, press ‘OK’. NOTE: if no password was set, press ‘OK’ on the password ‘0000’ screen.
    • Press the ‘left’ or ‘right’ key until you get to ‘P20’ screen with “TO CLEAR Energy NO” on the screen.
    • Press ‘OK’ to make ‘Energy’ flash, and then press the ‘left’ or ‘right’ key to make ‘NO’ flash.
    • Press ‘up or ‘down’ key to change the ‘NO’ to ‘YES’, and then press ‘OK’ to clear the energy.
    • Press ‘left’ and ‘right’ key simultaneously for one second to return to the main screen.

    On Software:

    Click on ‘Energy’ under the ‘Readings’ tab. Select the ‘User’ you want the energy cleared, and click ‘Clear Energy’.

    AcuDC 243

    On Meter:

    • Press ‘F’ and ‘V/A’ simultaneously for about 1 second; this will take you to the password screen.
    • Enter the password by using ‘F’ to change digits and ‘V/A’ to confirm the flashing digit and move the cursor to the next digit. After the password has been entered, press ‘V/A’ to go to the next screen; if a password wasn’t set, press ‘V/A’ until you get to the next screen.
    • Keep pressing ‘V/A’ until you see the ‘dEL No’ screen; press ‘F’ to change the ‘No’ to ‘Yes’ and press ‘V/A’ to confirm the clearing of energy.
    • Press ‘F’ and ‘V/A’ simultaneously to get back to the metering screen.

    On Software:

    Click the ‘Real-Time Metering’ under the ‘Readings’ tab, and then click ‘Reset Energy’.

    EV300:

    On Meter:

    • Press ‘‹›’ and ‘V/A’ simultaneously for about 1 second; this will take you to the password screen.
    • Enter the password by using ‘P’ or 'E' to change digits and ‘V/A’ to confirm the flashing digit and move the cursor to the next digit. After the password has been entered, press ‘V/A’ to go to the next screen; if a password wasn’t set, press ‘V/A’ until you get to the next screen.
    • Keep pressing ‘V/A’ until you see the ‘Ⱶ StE’ screen; press ‘‹›’ to enter edit mode and 'P' to change the ‘No’ to ‘Yes’ and press ‘V/A’ to confirm the clearing of energy.
    • Press '‹›' and ‘V/A’ simultaneously to get back to the metering screen.

    On Software:

    Click the ‘Real-Time Metering’ under the ‘Readings’ tab, and then click ‘Reset Energy’.


  6. Why is the meter's Current value (I) very small and Energy reading accumulating slowly?

    Please check if the CT ratio is setup correctly on the meter. CT1 stands for the primary side of the CT ratio and CT2 is for the secondary side. For example, if the CT has a ratio of 400:5, you should enter 400 for CT1 and 5 for CT2.

    NOTE: The CT1 screen on the Acuvim L series has two rows, and CT2 screen can be seen on the screen after CT1


  7. Power shown on meter is negative but power factor is high, why is this so?

    Negative power means your system is generating (delivering/exporting) energy. If your meter is monitoring a generator system, you should see negative power and this is correct. However, if your meter is monitoring a load that consumes energy, negative power (with high PF) usually results from 3 possibly reasons: the voltage and current are not aligned, the CTs are mounted in the reverse direction or the CT leads are wired to the meter in the opposite direction. Confirm that the voltage and current are aligned, for example, make sure phase ‘A’ correspond to voltage V1 and current I11 and I12 connections etc. Also make sure the P1/S1/H side of the CT faces the utility/source and that the black and white leads of the CTs are connected in the way specified by the CT manufacturer.

    The Accuenergy 5A CTs requires the black go in first, that is, I11, I21, I31 should be black and I12, I22, I32 should be white, while the opposite colour code is used for Accuenergy 333mV CTs.

    If Acuvim II series is used, you can reverse the CT current direction for each line from the system parameters setting mode instead of physically reversing the CT (this can be done on the meter or through the software). NOTE: This can only be done if the alignment is correct and the CT direction or lead order is the only things wrong.

  8. Why is the Power Factor low?

    Please check voltage and current connections and make sure that voltage phase and current phase are aligned (i.e. phase A should correspond to voltage V1 and current I11 and I12 connections etc).


  9. Does the meter support single phase application?

    The meter supports single phase application (either single phase 2 wire or single phase 3 wire).

    Old Platform: The wiring configuration should be set to 3LN and 3CT for both 2 wire and 3 wire single phase systems.

    New Platform: The wiring configuration should be set to 1LN, 1CT for single phase 2 wire, and 1LL, 2CT for single phase 3 wire system.


  10. Does the meter require external power supply?

    The meter requires auxiliary power for its power supply. There are two power supply options available, the standard power supply option 100-415Vac or 100-300Vdc (100-240Vac or 100-300Vdc for AcuDC 240 series and EV300 series) and the low voltage power supply option (20-60Vdc). You can connect the power supply to a 120/240Vac outlet or connect it together with the voltage port (as long as the input voltage range is between 100 – 415 VacL-L) for the standard power supply option.


  11. What is the refresh rate of the meter screen and meter register?

    (For 60Hz system) Acuvim II Series Acuvim L Series
    LCD Screen1 s1 s
    Modbus Data83 ms83 ms

  12. What is the sampling rate per cycle of the meter?

    II: 256 samples per cycle (old platform); 512 samples per cycle (new platform)

    IIR/IIE/IIW: 512 samples per cycle (old and new platform)

    L: 128 samples per cycle (old platform); 512 samples per cycle (new platform)

    AcuRev 2000: 64 samples per cycle


  13. What is the life expectancy of the meter and does it require recalibration?

    Acuvim series meter has a life expectancy (MTBF) of 17.5 years and does not require recalibration. In general, digital power meters do not require recalibration, only analog meters require that. NOTE: if you require re-calibration, you can send the meter back to us for NIST-traceable calibration service; certificate will be provided.


  14. Are the meters bi-directional?

    Yes, our meters are bi-directional; they support bi-directional current measurement and can measure both consumed and generated energy.


  15. Can I use the meter to monitor the load side of a variable frequency drive (AC drives)?

    Acuvim series meter cannot be used to monitor the load side of an AC drive. It can be used to monitor the source side of the AC motor drive system. This will give an accurate consumption.


  16. Can I use more than one type of CT for one meter and does it support multiple circuits?

    Acuvim II, L and EV300 series meters are designed for single circuit applications; therefore, only one type of CT (with same CT ratio) can be used.

    AcuRev 2000 series meter is designed for multi-circuit applications and different types of CTs with different CT ratios can be used.


  17. What is the frequency range of the meter?

    Acuvim II, L and AcuRev2000 series meter supports frequency from 45Hz to 65Hz.

    The Acuvim II series meter supports 400Hz, if needed.

    New platform meters have auto-frequency adaptation: This means the meter can automatically detects the frequency of the electrical system.


  18. What is the default password of the meter to enter the systems parameter settings page?

    The default password of the meter is 0000.


  19. Where can I setup the real time clock for the meter?

    The meter’s real time clock can only be set via communication using the software, except on the AcuRev 2000 series meter in which it can both be set using the software and the meter.

    Using the Software

    After connecting the meter to the computer using the software, follow these steps to set the real time clock for the meter:

    Acuvim II series and Acuvim L series (DL and EL only)

    • Click on ‘System Status’ section under the ‘Readings’ tab.
    • Select the method to set the clock (by using PC time or entering a date and time)
    • Click ‘Set Device Clock’

    AcuRev 2000 series

    • Click on ‘Device Information’ section under the ‘Readings’ menu.
    • Select the method to set the clock (by using PC time or entering a date and time)
    • Click ‘Set Device Clock’

    On the Meter

    AcuRev 2000 series

    • Press left or right on the main screen to have ‘SET’ highlighted. Press ‘OK’
    • Enter the Password and Press ‘OK’ (if no password was created, press ‘OK’)
    • Press any of the arrow keys until you get to the Time set ‘P32’ screen.
    • Set the time and date by pressing ‘OK’ to go into editing mode, left or right key to switch flashing digits, and up or down to increase or decrease the number.
    • Press ‘OK’ to confirm settings.
    • Press ‘left’ and ‘right’ key simultaneously for about one second to return to the main screen.

  20. What type of serial port does the meter use and does the meter support RS422 and RS232?

    The meter supports 2-wire RS485 serial bus. The meter does not support RS422 and RS232.

    NOTE: We have Pre-configured USB-RS485 converter in stock. Some generic RS485-USB converters are not guaranteed to work.

General Communication


  1. Where can I find the Modbus map of the meter?

    The full Modbus map is included in the user’s manual of the meter.

    NOTE: A copy of the modbus address can be sent to you whenever needed.


  2. Do I need to do calculations after reading a parameter from a modbus register address?

    Some parameters will require calculations after reading the values from the modbus register while others will not. It is stated in the user manual what parameters require calculations and the ones that don’t.

    You can get in contact with us if you require assistance.


  3. What kind of communication protocols does the meter support?

    Acuvim-CL and KL supports Modbus-RTU, while Acuvim-DL and EL supports Modbus-RTU and PROFIBUS-DP/V0. Acuvim II series supports Modbus-RTU, DNP3.0, BACnet-MSTP, BACnet IP; Modbus-TCP, HTTP webpage, email SMTP, SNMP, and SNTP, HTTP push (Ethernet option); PROFIBUS-DP/V0 (Profibus option). AcuDC240 series supports Modbus RTU. AcuRev 2000 series supports Infrared, Modbus-RTU, Modbus-TCP, HTTP, SMTP, SNMP, and SNTP.

Serial Communication


  1. What type of serial port does the meter use and does the meter support RS422 and RS232?

    The meter supports 2-wire RS485 serial bus. The meter does not support RS422 and RS232.

    NOTE: We have Pre-configured USB-RS485 converter in stock. Some generic RS485-USB converters are not guaranteed to work.


  2. How many meters can I connect together serially and what is the max length of connection?

    According to the RS485 specification, up to 32 meters can be connected to a single RS485 bus without repeaters. If you want to connect more meters on a RS485 bus, you can add RS485 repeaters to your RS485 network. A maximum of 247 slave nodes can be added to one RS485 line with repeaters. The overall length of the RS485 cable connecting all devices should not exceed 1200m (4000ft).


  3. How can I connect the meter to a computer that does not have RS485 port?

    A USB-RS485 converter or RS232-RS485 converter can be used if your computer is equipped with a USB port or RS232 port.

    NOTE: We have Pre-configured USB-RS485 converter in stock. Some generic RS485-USB converters are not guaranteed to work.

    Also, if you have an Ethernet module, a CAT5 cable can be used to connect with the computer directly.


  4. How do I know if there is communication between the meter and the computer?

    The communication icon blinks when the meter is communicating to the computer.


  5. What are the pin outs for the serial communication port?

    The RS485 terminal of the meter has 3 pins (14, 15, 16) or (1,2,3 on AcuRev). Pin 14 (A) is for differential + signal; pin 15 (B) is for differential - signal; pin 16 (S) is for shielding. Please make sure positive signals (+) are connected together and negative signals (-) are connected together.

    NOTE: A pin-out diagram from our converter can be sent to you if needed.


  6. Do I need different settings if I have more than one meter on the same RS485 line?

    When multiple meters are connected to the same RS485 line, make sure all meters have the same baud rate and parity with different device communication addresses. By default, the meter’s baud rate is 19200, parity is none 1 and the device communication address is 1.


  7. What will be the maximum number of Modbus repeaters can be allowed in a single network?

    32 repeaters.


  8. Why can’t I connect the meter to the computer?

    Firstly, you need to make sure the USB-RS485 converter being used is accurately wired and working. We have USB-RS485 converters that are reliable.

    Secondly, make sure you have the device address, baud rate and parity settings the same on the software as on the meter. Also confirm you have the right com port; this can be found in the ‘device manager’ settings on your computer.

    Acuvim II Series:

    To change/confirm the settings on your meter:

    • Press ‘H’ and ‘V/A’ simultaneously for about 1 second; this will make the display blank, with a flashing cursor at the top.
    • Move this cursor to ‘Setting’ by pressing ‘P’ or ‘E’, and then pressing ‘V/A’; a PASSWORD screen will be displayed.
    • Enter your password by using ‘H’ to switch between digits, ‘P’ or ‘E’ to increase or decrease digits and ‘V/A’ to confirm password. NOTE: if you didn’t set a password, press ‘V/A’ on the password screen.
    • The parameter selection mode is displayed with ‘SYS’, ‘I/O’, ‘NET’ and ‘ALM’ showing on the screen. The cursor will be on ‘SYS’; press ‘V/A’. This will take you to the parameter settings screen.
    • The first screen ‘S01’ is the device address screen. Note this down or change it to the desired address. To change it, press ‘V/A’ to make the cursor flash, ‘P’ or ‘E’ to increase or decrease the number, and ‘H’ to move the flashing cursor. After the address has been changed, press ‘V/A’ to confirm.
    • Press ‘P’ to go to the ‘S02’ baud rate screen. Note this down or change it to the desired baud rate. To change it, press ‘V/A’ to make the cursor flash, ‘P’ or ‘E’ to increase or decrease the number, and ‘V/A’ to confirm.
    • Press ‘P’ or ‘E’ to go to the ‘S30’ parity 1 screen. Note this down or change it to the desired parity 1 setting. To change it, press ‘V/A’ to make the cursor flash, ‘P’ or ‘E’ to increase or decrease the number, and ‘V/A’ to confirm.
    • Press ‘H’ and ‘V/A’ simultaneously to make the screen blank, and then move the cursor to ‘Meter’ by pressing ‘P’ or ‘E’; press ‘V/A’ to go back to the meter screen.

    After all the settings have been confirmed, open the Acuview software

    • A ‘connection setting’ window opens, put in the right com port, baud rate and parity, and then click OK. NOTE:
    • An ‘Add device’ window opens, choose the right device type and device address, and then click OK.
    • Click on the connect button located at the top left corner of the screen. NOTE: This is the yellow light bulb icon.

    NOTE: When the utility software is opened, the com port, baud rate, device address, parity and device type are displayed on the ‘connection settings’. Fill in the information, click OK and connect using the red telephone icon on the top left corner of the screen.


    AcuRev 2000 series

    To change/confirm the settings on your meter

    • Press the ‘left’ or ‘right’ arrow key on the main screen until ‘SET’ is highlighted. Press ‘OK’
    • A password screen is displayed. Enter the password by using ‘up’ or ‘down’ key to change the digits and ‘left’ or ‘right’ key to switch digits. When the password has been entered, press ‘OK’. NOTE: if no password was set, press ‘OK’ on the password ‘0000’ screen.
    • A ‘P01’ screen is displayed. Press the right key to get to the ‘P02 COM ADDRESS’ screen. Note down the address or change it by pressing ‘OK’ to enter the editing mode, up or down key to increase or decrease the number, left or right key to change the flashing cursor and OK to confirm the change.
    • Press the right key to get to the ‘P03 COM RS485’ screen. Note down the Baud rate and parity (FORMAT) or change them by pressing ‘OK’ to enter editing mode, left or right to switch between the two Baud rate and parity settings, up or down to change the setting property, and ‘OK’ to confirm the change.
    • Press ‘left’ and ‘right’ key simultaneously for one second to return to the main screen.

    After all the settings are confirmed, open the utility software. The same utility software procedures as the Acuvim II series can be followed here.


    AcuDC 240 series
    To change/confirm the settings on your meter:

    • Press ‘F’ and ‘V/A’ simultaneously for about 1 second; this will take you to the password screen.
    • Enter the password by using ‘F’ to change digits and ‘V/A’ to confirm the flashing digit and move the cursor to the next digit. After the password has been entered, press ‘V/A’ to go to the next screen; if a password wasn’t set, press ‘V/A’ until you get to the next screen.
    • The device address ‘Add’ screen is displayed. Note down the address or change it by pressing ‘F’ to change the value and ‘V/A’ to switch the flashing digit and also to confirm the settings and move to the next screen.
    • The baud rate ‘bPS’ screen is displayed. Note it down or change it by pressing ‘F’ and ‘V/A’ to go to the next screen.
    • The parity ‘CHEC’ screen is displayed. Note it down or change it by pressing ‘F’ and ‘V/A’ to go to the next screen.
    • Press ‘F’ and ‘V/A’ simultaneously to get back to the metering screen.

    EV300 series
    To change/confirm the settings on your meter

    • Press '‹›' and ‘V/A’ simultaneously for about 1 second; this will take you to the password screen.
    • Enter the password by using '‹›’ to change digits, 'P' or 'E' to change value of the digit and ‘V/A’ to confirm the flashing digit and move the cursor to the next digit. After the password has been entered, press ‘V/A’ to go to the next screen; if a password wasn’t set, press ‘V/A’ until you get to the next screen.
    • The device address ‘Add’ screen is displayed. Note down the address or change it by pressing ‘‹›’ to enter edit mode and ‘V/A’ to confirm the settings and move to the next screen.
    • The baud rate ‘bPS’ screen is displayed. Note it down or change it by pressing ‘P’ and ‘V/A’ to go to the next screen.
    • The parity ‘PAⱵ’ screen is displayed. Note it down or change it by pressing ‘P’ and ‘V/A’ to go to the next screen.
    • Press '‹›’ and ‘V/A’ simultaneously to get back to the metering screen.

    After all the settings are confirmed, open the acuview software. The same Acuview software procedures as the Acuvim II series can be followed here.


  9. What is needed to use AcuMesh wireless RS485 solution?

    The AcuMesh wireless RS485 network solution is designed to connect energy meters and any devices by communicating through the RS485 port of those devices. At least two transceivers are needed to form a network. If a Acuvim II series meter is being used, the AXM-Mesh module can be attached to the back of the meter. Otherwise for any RS485 device, the AcuMesh Transceiver must be connected to the device. The baud rate of the connected devices must be set to 9600 and have a parity of none1.


  10. What communication protocols is the AcuMesh transceiver compatible with?

    The AcuMesh transceiver works with any device with a RS485 port running any communication protocol, such as Modbus, BACnet, DNP 3.0 and LonWorks.


  11. What frequencies does the transceiver operate at?

    The AcuMesh transceiver is available in a 900MHz for North America and Australia. For Europe and Africa standards, the AcuMesh transceiver is available in a 868MHz option.


  12. How far apart can these transceivers communicate between?

    A transceiver can communicate up to 1000ft (305m) indoor or 4 miles (6.5km) outdoor in a single hop.


  13. Are there any configurations required?

    The devices connected to the AcuMesh transceiver must have the following configurations in order to communicate: Baud rate of 9600 and Parity of None1 (or Parity is None, 1 stop bit). The RS485 devices in the network should be uniquely assigned a Modbus address from 1-247.

Ethernet Communication


  1. How do I know if the Ethernet module is connected to the Acuvim II series meter correctly?

    When the module is connected to the meter correctly, you should be able to see the communication icon Communication Icon (blink) and the Ethernet module icon Ethernet Icon (solid) showing at the bottom of the meter’s front LCD screen. Please make sure that the Ethernet module is installed on the back of the meter FIRST before other modules are attached.


  2. What is the default password for the Ethernet module?

    The default password is 12345678.


  3. Why am I unable to connect to software even though I have all meter settings correctly set?

    Firstly, make sure you ‘RESET’ the module on the NET RESET screen after you have changed the network settings on the meter; this will update the settings in the Ethernet module. Also make sure that the Baud rate 2 and Parity 2 in the system parameter settings of the meter are set to “38400” and “none1” respectively.

    Secondly, make sure you have the right settings on the software before connecting; settings such as:

    • IP address (default: 192.168.1.254)
    • Modbus port (default: 502)
    • Device type (e.g. Acuvim IIR)
    • Device address (default: 1)

  4. How do I connect my meter directly to my computer using a CAT5 Ethernet cable?

    To connect your meter directly to a computer using a CAT5 Ethernet cable, you need to set the computer’s IP address within the same IP range as that of the meter, and also have the same subnet mask and default gateway as the meter; that is, you need to manually set the IP settings on the computer. This can be done through the LAN (Local Area Network) properties.

    The table below gives an example of what the computer setting could be, with the given meter setting.

    Meter SettingComputer Setting
    IP address192.168.1.254192.168.1.10
    Subnet mask255.255.255.0255.255.255.0
    Gateway192.168.1.1192.168.1.1

    To manually set the IP settings on your computer, follow these steps:

    • Go to ‘Network Connections’ setting on the computer. Disable the Wireless Network Connection and enable ‘Local Area Connection’. Right click on ‘Local Area Connection’ and click on ‘Properties’Network Connections
    • In the ‘Local Area Connection Properties’, select ‘Internet Protocol Version 4 (TCP/IPv4)’, and then click ‘Properties’.LAN Connections
    • In the ‘Internet Protocol Version 4 (TCP/IPv4) Properties’ window, select “Use the following IP address”. Put in the IP address (in the meters IP address range), Subnet Mask and default gateway from the meter into these fields. For example, from the ‘computer setting’ section of the table above, these settings will be 192.168.1.10, 255.255.255.0 and 192.168.1.1.
    • After the settings have been entered, Click ‘OK’, and then click ‘OK’ again.IP Settings

      After the computer has been set, you can connect your meter to the computer directly using a CAT5 Ethernet cable.


  5. What should I check if I am not able to view the meter via internet (external network)?

    Please check if you can communicate with your meter in LAN (Local Area Network) by connecting the meter directly to the computer using a CAT5 Ethernet cable. (Look at Question 34 above for procedures).

    If you are able to communicate with the meter in LAN connection with the correct settings, you should also be able to communicate in the internet (external network) environment.

    Please make sure port forwarding is setup correctly in your router. The default Modbus port is 502 and the default HTTP port is 80. When setting up the meter’s network parameters, use internal network settings (i.e. internal IP address, subnet mask and gateway) instead of external settings (i.e. router’s external network parameters).

    NOTE: A Video explaining this process can be found here.


  6. What needs to be different when accessing multiple meters?

    When accessing multiple meters internally, within the network, the meters must have different IP addresses.

    When accessing multiple meters externally, outside the network, the meters must have different modbus port.

AcuMesh Frequently Asked Questions


AcuMesh wireless RS485 transceiver works like an “invisible wire”. It can be installed like any other wired network in a building or facility, but no actual wires are involved and you can reduce significant amount of installation time, cost and difficulties.


  1. Which model is a transmitter, receiver and repeater?

    Typically, a transmitter, receiver and repeater are separate units in a wireless system. Unlike other wireless solutions, AcuMesh wireless transceiver has these three functions built into one model, so it works as transmitter, receiver and repeater from every single unit. The transceiver will automatically switch roles in the system. Each unit is able to connect to either master or slave RS485 devices to send and receive data/commands, and broadcast or repeat the command until every transceiver in the field is connected.


  2. Can I connect more than one units to one AcuMesh transceiver?

    Yes, just like physical wire where you directly connect a daisy chain of RS485 devices to another unit or master device. One AcuMesh transceiver is connected at the end of one chain of RS485 devices, and another transceiver connect to another group of device or master device.


  3. What protocol does it support?

    AcuMesh transceiver uses transparent communication, so any RS485 protocol can run over the wireless communication. Any protocol that can be transmitted on a traditional wired RS485 device will be able to run on AcuMesh wireless RS485 transceivers. A few popular example are Modbus-RTU , BACnet-MSTP and DNP 3.0 over RS485 port.


  4. If the two transceiver is not able to connect to each other due to distance, can I add another transceiver between as a repeater without connecting to RS485 device?

    Yes, the AcuMesh transceiver will act as a repeater automatically when it is powered up to broadcast data across the private wireless network.


  5. Our application requires multiple groups of wireless network and they cannot interfere with each other or communicate with each other, can this be set up?

    Yes. The AcuMesh transceiver uses default channel out-of-box, you won’t need to do any additional configuration to connect all devices within a single network. If you need multiple networks that are separate from each other, simply configure a different channel name for the transceivers in the other network group. AcuMesh transceivers will only identify other devices with the same channel name. Additionally, each channel allows for a separate password for better security and management.


  6. If the master device is a computer, do you offer a RS485 to USB converter?

    Every AcuMesh transceiver has RS485 port and USB port built in. So you can either connect RS485 port to any RS485 devices, or connect USB to computer. When you connect via USB, the unit is capable of being powered by USB, so no power supply would be needed.


  7. Do you need to assign an address to each transceiver?

    As AcuMesh works via transparent communication it does not add or modify any existing communication protocol. Consider it as an invisible wire device where no configuration is needed, no configuration is needed with AcuMesh transceivers as well. The exact same master device, whether it is a data acquisition server, computer running master software, or a PLC will remain the same. RS485 slave devices or sensors maintain the same configuration, such as device ID.


  8. How many AcuMesh transceivers can I connect in one network?

    There is no limit in number of AcuMesh transceivers in the network, you can potentially add unlimited number of AcuMesh transceivers in the wireless mesh network. The limit is typically based on the protocol the system is using. For example, a daisy chain setup for RS485 devices with Modbus-RTU protocol has a limit of 32 devices without repeater.

Acuvim II Frequently Asked Questions


  1. How many modules can be attached to the meter?

    • A maximum of 3 modules may be attached to the meter.
    • If a communication module is used (e.g. AXM-NET), it must be installed on the back of the meter FIRST before other modules are attached.
    • There can only be one AXM-NET module connected to the meter
    • No more than 2 of the same I/O modules may be attached to the meter. The same two IO modules must have different component number, for example, 2 AXM-IO2 will be AXM-IO2-1 and AXM-IO2-2 (please see ordering information in the brochure for more details).

  2. Do I need to power off the meter before installing the modules?

    Modules must be installed before powering on the meter.


  3. Where can I find the user’s manual for the meter and modules?

    User’s manual for the meter and modules can be found in the CD that comes with the meter, or available here.


  4. What is the default password of the meter to enter the systems parameter settings page?

    The default password of the meter is 0000.

Acuvim-L Frequently Asked Questions


  1. Why is the current 10 times bigger than what it should be after setting up the meter?

    Please check the CT ratio and CT1 setting. The meter uses 4 digits on the top row and 1 digit in the middle for setting up parameters for CT1. When you have a CT ratio of 450:5, CT1 should read 0045 on the top line and 0 on the next line. CT2 is fixed at 5 (or 1 for the 1A option meter).


  2. Energy readings are alright at first; however it seems to reset itself after a while. All the settings look correct and no resets have been performed. What can the problem be?

    The Acuvim-L series meter utilizes all 3 rows of the digit display to show kWh/kvarh/kVA values. As the accumulated energy increases, the most significant digit (digit with the highest order) will move upwards. For example, for 98,765,432.1kWh, the meter will show 9 on the top line, 8765 in the middle and 432.1 at the bottom.

AcuRev 2000 Frequently Asked Questions


  1. Why can’t I view all the three phases at once for a three phase user on the software?

    Make sure you have the ‘wiring of the Three-phase User’ set as 3LN and the user channel as a number between 19 and 24 on the meter or between 301/201 and 306/206 on the software.

    To set this up on the meter:

    • Press left or right on the main screen to have ‘SET’ highlighted. Press ‘OK’
    • Enter the Password and Press ‘OK’ (if no password was created, press ‘OK’)
    • Press any of the arrow keys until you get to the wiring mode ‘P29’ screen. Change the wiring mode to ‘3LN’ by pressing ‘OK’ to enter editing more, any of the arrow keys to change the setting to ‘3LN’ and ‘OK’ to confirm the change.
    • Press any of the arrow keys until you get to the channel setting ‘P30’ screen. Press ‘OK’ to enter editing mode, left or right key to switch between ‘Name’ and ‘Channel’, up or down key to change the specific name or channel.
    • When you have selected the appropriate user, change the user channel to a number between 19 and 24 (the 6 numbers represents 6 three phase channels). Press ‘OK’ to confirm the setting.

    To set this up using the software:

    • Go to the ‘User and CT Settings’ under the ‘Settings’ menu.
    • Select the ‘Wiring of Three-phase User’ as ‘3LN’
    • Under ‘User and Channel Mapping’, choose the appropriate user and select the ‘Channel’ between “301/201 and 306/206”; these numbers represents 6 three phase channels.
    • Click ‘Update Device’.

AcuDC 240 Frequently Asked Questions


  1. What is the direct input voltage and current range?

    The input range for direct voltage measurement is 0-1000V and for current is 0-±10A.


  2. Why does the DC meter show 0A when using a Hall Effect sensor?

    Ensure the Hall Effect sensor has the required power supply (±15 Vdc). If the Hall Effect sensor has the required power supply then ensure the output of the sensor is wired correctly:

    • Terminal 3 on the sensor is for output, ensure this is connected to 'I+(5)' on AcuDC 240 serie meter.
    • Terminal 4 on the sensor is the ground, ensure there are two wires from this terminal; one going to 'I-(6)' on the AcuDC 240 series meter and the other wire must be grounded in order to see an output.

  3. What are the differences between Hall Effect sensor and a shunt?

    A Hall Effect sensor requires a power supply (±15 Vdc) while a shunt does not. Also, a shunt requires you to break the circuit to install while a Hall Effect sensor does not.

    Make a comparison chart of both instruments.

    IntrusivePower Supply
    Hall Effect SensorDoesn't require breaking circuit to installRequires ±15 Vdc Power Supply
    ShuntRequires breaking circuit to installDoes not Require Power Supply

Current Transformers


  1. What side of the CT should face the utility?

    The side of the CT that says P1/S1/H/h2 should face the utility side.

    NOTE: Some CTs like ours, have arrow pointing in the direction of current flow.


  2. How should the CT wires be connected to the meter?

    5A Accuenergy CTs: The CT black lead should go in first before the white lead, that is black should go in to I11 and white to I12, black to I21 and white to I22, and black to I31 and white to I32.

    333mV Accuenergy CTs: This is opposite to the case of the 5A CTs, that is, the CT white lead should go in first before the black lead.

    Rogowski Coil (RCT) Accuenergy CTs: The CT's white lead should be connected to I11 and brown lead should be connected to I12, white to I21 and brown to I22 and so forth. The shield wire can be grounded or left unconnected.

    For AcuRev 2000 series, which uses the 333mV CTs, white will go into 37 and black to 38, white to 39 and black to 40 etc.

    If AcuRev 2000 series is used with Rogowski Coil CT's, the white lead will go into 37 and brown to 38, and so forth.

    NOTE: All CT manufacturers do not have the same standard; use the right wire connection standard for the particular CT.

AcuPanel (II and L Series)


  1. What are the different Panel boxes available and what are the differences?

    We have the NEMA4 and NEMA4X panel boxes. The NEMA4 box is made of steel while the NEMA4X box is made of plastic. NEMA4 Panel box is an indoor panel box while the NEMA4X panel box is waterproof. A comparison table is shown below.

    AcuPanel 9104(NEMA 4)AcuPanel 9104X (NEMA 4X)
    MaterialSteelPolycarbonate
    Dust-ProofYesYes
    Water-ProofNoYes
    Anti-corrosiveNoYes
    Indoor InstallationYesYes
    Outdoor InstallationNoYes
    Weight18 lbs7 lbs

  2. If we purchase the NEMA 4 and NEMA 4X panel boxes, will it be pre-wired and will the meter settings be pre-configured?

    Both the NEMA 4 and NEMA 4X panel box will come pre-wired; this will include fuses, shorting and terminal blocks. The meter will also be pre-configured and programmed with the required parameters settings.

AcuView / Utility Software


  1. Where can I download your software?

    Our software can be downloaded on our website here.

    You can also contact the technical service department to have it sent to your email.


  2. What are the differences between Acuview software and the utility software?

    Acuview SoftwareUtility Software
    Supports multiple series metersYesNo (supports a specific series meter)
    View multiple devices at a timeYesNo
    Setting up for data logging on meter memoryYesYes
    Setting up for data logging on Computer memoryYesNo
    Reads all onboard data log entries in the meter memoryYes (reads 64000 onboard data log entries)Yes

  3. Does the Acuview and utility software accept both serial and Ethernet connection?

    Yes. You can connect your meter to Acuview by using serial communication or Ethernet connection.


  4. How should I add my meter to Acuview?

    You can add a meter to an available connection by clicking the “Add Device” icon. Please make sure to select the correct connection name (IP address or COM port), Modbus port and device communication address for each device.


  5. How to view multiple meters at the same time?

    To view and monitor multiple meters at a time using the AcuView software, all meters need to have an available connection first before adding the meters.

    • Create a 'Connection' to each meter either serial or network.
    • Press 'Add Device' and add all the meters to the software based on the 'Connection' just made.
    • Press 'Connect' so that the software will connect to each meter all at once.
    • Click on 'Window' to select a viewing option for all the meters that the software is connected to.

    Note: Only one meter can be viewed at a time using a meters Utility Software.


  6. What are the computer system requirements for Acuview?

    Operation System:Windows 2000/XP/Vista/7/8

    RAM: 128MB/256MB or More

    Hard Disk Space: 100 MB/500MB or More

    Display: 1024x768 or Higher

    Software Installed: Microsoft Office Excel 2000/XP/2003/2007

    If Microsoft Excel is not installed in the system, the log files cannot be saved as Excel documents.


  7. What kinds of meters are supported by Acuview?

    Acuview supports Acuvim DX, Acuvim EX, Acuvim FX, Acuvim GX, Acuvim CL, Acuvim DL, Acuvim EL, Acuvim KL, Acuvim II, Acuvim IIR, Acuvim IIE, Acuvim IIW, Acuvim, Acuvim+, AcuDC 240 series, AcuDC 220 series.


  8. Can I replace the utility software with Acuview?

    Yes, if the meter is supported by Acuview, you can replace its utility software with Acuview.


  9. What happens when the meter memory is full during data logging?

    • If the ‘Logging Timer’ is disabled for data logging, a ‘sector’ will be deleted once the meter memory is full.
    • If the ‘Logging Timer’ is enabled, data logging will stop once the memory is full.

  10. Data isn’t logging when ‘Logging Timer’ is enabled. Why is this so?

    This can be because the date and time are not set. Make sure this is set in the ‘system status’ section of the software.


  11. Can I data log directly on my computer?

    Yes, you can data log directly on your computer using the Acuview software; this can be found in the data log settings or by pressing Ctrl+L. The meter would have to be connected to the computer with the software open for data to be logged.


  12. Can I view the Excel file when data logging is running?

    You can view the Excel file; however, do not double click on ANY Excel files when data logging is running. To open and view the spreadsheet, run Excel and open the data logging file from Excel.


  13. Why is my data log file not updating on my computer, but the ‘Monitoring time Used’ on the data log settings on Acuview keeps increasing.

    The reason for this might be that the customer had double clicked on the data log file while it was running instead of opening through excel i.e. open excel software and then open file.


  14. Can I modify the data log file name and can I save the file on a network drive?

    Yes, you can create your own data log file name and save the file on any directories (including network drives that have been mapped to the computer). Each data log file has a time-stamp postfix attached to the file name.

    Follow these steps to do this:

    • Open the Acuview software and enter the necessary connection settings and device information. Click ‘Connect’.
    • After the meter is connected, go to ‘Settings’ on the menu bar at the top of the software screen. Click ‘Data Log Settings’.AcuView Data logging settings
    • In the ‘Data Log Settings’, check the ‘Enabled’ box to enable data logging, check the required ‘Logging items of Selection’, enter the ‘Logging Options’.AcuView Data logging settings
    • Enter the file name required, under the ‘Log file name’; also choose the location to save the file under ‘Log file folder location’.AcuView Data logging settings
    • Click ‘OK’ after you are done.

  15. Can I view setting files (pmt files) without connecting the meter to the software?

    Pmt files can be viewed without a meter connected to the software. This can be done by opening the file in Microsoft word or Notepad. It can also be opened using a web browser.