AccuEnergy AcuRev 1312 User manual

AcuRev 1312 DIN-Rail Power Meter
User's Manual

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Copyright © 2017 V1.00
This manual may not be altered or reproduced in whole or in part by any means without the ex-
pressed written consent of Accuenergy.
The information contained in this document is believed to be accurate at the time of publica-
tion, however, Accuenergy assumes no responsibility for any errors which may appear here and
reserves the right to make changes without notice. Please ask the local representative for latest
product speci󳆂cations before ordering.

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Please read this manual carefully before installation, operation and maintenance of the AcuRev
1312 meter. The following symbols in this manual are used to provide warning of danger or risk
during the installation and operation of the meters.
Electric Shock Symbol: Carries information about procedures which must be fol-
lowed to reduce the risk of electric shock and danger to personal health.
Safety Alert Symbol: Carries information about circumstances which if not consid-
ered may result in injury or death.
Prior to maintenance and repair, the equipment must be de-energized and grounded. All main-
tenance work must be performed by quali󳆂ed, competent accredited professionals who have
received formal training and have experience with high voltage and current devices. Accuenergy
shall not be responsible or liable for any injuries caused by improper meter installation and/or
operation.

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Contents
Chapter 1: Introduction…………………………………………………5
1.1 Meter Overview………………………………………………………………………………6
1.2 Areas of Application…………………………………………………………………………7
1.3 Product Features……………………………………………………………………………7
Chapter 2: Installation…………………………………………………8
2.1 Appearance and Dimensions………………………………………………………………10
2.2 Installation Methods…………………………………………………………………………11
Chapter 3: Operation……………………………………………………21
3.1 Display Panel and Keys……………………………………………………………………22
3.2 Display Mode and Key Operations…………………………………………………………23
Chapter 4: Functions and Software…………………………………26
4.1 Con󳆂guration…………………………………………………………………………………27
4.2 Energy Pulse Output…………………………………………………………………………28
4.3 Introduction to AcuRev 1310 Utility Software……………………………………………30
4.3.1 Real-time Readings……………………………………………………………………31
4.3.2 Energy Readings………………………………………………………………………32
4.3.3 Device Information……………………………………………………………………33
4.3.4 Settings…………………………………………………………………………………33
4.3.5 Setting the Pulse Output:……………………………………………………………35
Ch apte r 5: C o mm unic at io n……………………………………3 6
5.1 Modbus Protocol Introduction……………………………………………………………37
5.2 Communication Format……………………………………………………………………38
5.3 Application Details…………………………………………………………………………40
Appendix…………………………………………………………………45

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Welcome to the AcuRev 1312!
You have purchased an advanced, versatile, multifunction power meter.
When you open the package, you will 󳆂 nd the following items:
1. AcuRev 1312 power meter
2. Additional documentation (Quick Setup Guide & Calibration report)
Please note the following chapter descriptions in order to utilize the power meter properly.
Chapter 1 introduces the basic AcuRev 1312 features and application areas.
Chapter 2 provides an overview of installation and wiring methods for the AcuRev 1312.
Chapter 3 introduces the operation of the AcuRev 1312 via the display panel and how to use
the meter to view measurement data and parameter settings.
Chapter 4 introduces the software associated with the meter and the main functions
Chapter 5 introduces communication related information, including communication proto-
col format and parameter address tables.
Appendix provides speci󳆂 cations and technical information about the AcuRev 1312.

AcuRev 1312
DIN-Rail Power Meter
Chapter 1: Introduction
1.1 Meter Overview
1.2 Areas of Application
1.3 Product Features

AcuRev 1312
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DIN-Rail Power Meter
1.1 Meter Overview
The AcuRev 1312 power meter is a Measurement Canada approved DIN rail-mounted single
and three phase energy meter with high accuracy and small form factor that is ideal for use in
tight and distributed spaces, in-suite metering and multi-customer metering system. The meter
includes an easy to read Liquid Crystal Display(LCD) which displays the measurement data. It is
ideal for building energy management systems, for energy monitoring and tenant billing sys-
tems.
Energy
Measurement Canada approved AcuRev 1312 supports unidirectional energy accumulation for
the consumption of energy. The meter supports energy parameters such as the reactive and ap-
parent energy with ANSI C 12.20 0.5 class and IEC 62053-22 0.5s class revenue grade accuracy.
Measurement Function
AcuRev 1312 provides real-time RMS measurement of the instantaneous Voltage, Current, Pow-
er, Frequency and Power Factor. All measurements can be viewed through the meter display or
the AcuRev 1312 Utility Software.
Demand
The AcuRev 1312 provides demand measurement of the current being drawn as well as the
demand for the Active, Reactive and Apparent Power. It provides demand forecasting as well as
the peak demand.
Pulse Output
The AcuRev 1312 supports the energy Pulse Output function to output digital pulses. There is a
dedicated channel that is KZ output type to transmit pulses proportional to the metered active
energy.
Communication
Supports Modbus-RTU communication protocol over RS-485. The AcuRev 1312 can communi-
cate with a computer over RS-485, Ethernet and USB.
For wireless communications, please refer to AcuMesh wireless RS485

Chapter 1: Introduction
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1.2 Areas of Application
Multi-tenant Buildings:
⚫ Condominium/Apartment ⚫ O󳆄ce Buildings
⚫ Data Centers ⚫ Hotels
⚫ Malls
Schools
Public Facilities
Industrial Facilities
1.3 Product Features
Multifunction, high accuracy
The AcuRev 1312 meter has data collection and management function for energy and multi-pa-
rameters measurement. It also provides demand measurement and event logging.
The measurement accuracy of the energy, power, voltage and current is 0.5%.
Anti-Tampering for Billing
The AcuRev 1312 includes both physical and electronic sealing function. The meter is designed
such that it cannot be opened without leaving obvious signs of tampering. Tenants cannot
change parameter settings through the display when the electronic seal is closed preventing
data being changed.
Small size, convenient installation
The appearance and dimension of the AcuRev 1312 meter is designed in accordance with IEC
35mm DIN standard.
Clear Display
The AcuRev 1312 includes a built-in display to provide clear visibility in all environments. The
LCD display of the AcuRev 1312 includes a backlight to aid in visibility when the meter is in-
stalled in poor lighting. All the measurement parameters can be easily accessed through the
display.

AcuRev 1312
DIN-Rail Power Meter
Chapter 2: Installation
2.1 Appearance and Dimensions
2.2 Installation Methods
2.3 Wiring

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Chapter 2: Installation
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Before Installation
The installation must be performed by quali󳆂 ed accredited professionals who have received for-
mal training and have experience with high voltage and current devices. The installer is required to
wear the appropriate safety equipment to ensure safe installation.
During normal meter operation, caution should be used when handling the following as high volt-
age may be present:
⚫ Terminal Blocks.
⚫ Current/Potential Transformer leads and the related circuits.
⚫ All primary and secondary may contain lethal current and voltage. Contact with current
channels must be avoided.
⚫ The AcuRev 1312 cannot be installed on the primary side of the transformer or where
there is VA limitations. The AcuRev 1312 can only be installed on the secondary side. Avoid
all contact with meter terminals after the completion of the installation.
⚫ Do not input voltage above the rated speci󳆂 cation of the AcuRev 1312 and the devices
connected to it. Before energizing the meter, please refer to the meter’s label and speci󳆂 ca-
tions.
⚫ Do not perform high voltage test or insulation experiments to output, input or communi-
cation terminals.
⚫ The use of shorting blocks and fuses are recommended. Current transformers need to be
grounded.
⚫ Use a dry cloth to wipe the meter.
This chapter mainly describes how to install the AcuRev 1312 power meter, which is an import-
ant step in using the meter correctly. This chapter provides wiring diagrams to reference when
installing the meter. Before installing the meter, please read this section 󳆂 rst.

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AcuRev 1312
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DIN-Rail Power Meter
2.1 Appearance and Dimensions
Figure 2.1.1
Figure 2.1.2 Front and side views of the AcuRev 1312
108.0
90.0
35.5
45.4
62.57.0
17.5
15.0
Front View Side View
Unit: mm

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Chapter 2: Installation
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2.2 Installation Methods
Environmental
Before installation, please ensure that the AcuRev 1312 meter is installed
in a place it will not be damaged and ensure the environment conditions
such as temperature and humidity are within speci󳆂cations.
Temperature
The AcuRev 1312 has an operating temperature of -25~53˚C. Exceeding this temperature range
will cause damage to the meter. Please note that it can in󳆃uence the meter’s life negatively if the
meter operates in extremely high or low temperatures.
Humidity
5% to 95% non-condensing.
Location
The AcuRev 1312 should be installed in a dry and dust free environment. Avoid exposing meter
to excessive heat, radiation and high electrical noise sources.
Installation Steps:
This product is DIN railed mounted and 󳆂ts on a standard 35 mm rail.
1. To install the meter on the rail insert the top of the rail into the groove on the back of the me-
ter. Pull the metal clips back and slide the rail across the groove of the meter.
Figure 2.2.1
Temperature and humidity
of the environment must
accord with the require-
ment of AcuRev 1312,
Otherwise it may cause
the meter damaged.
Note

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AcuRev 1312
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DIN-Rail Power Meter
2. Use the metal clips to tighten onto the rail to complete installation.
Figure 2.2.2
2.3 Wiring
The terminals of the AcuRev 1312 can be accessed by 󳆂rst removing the terminal covers on the
meter.
1. To open the terminal cover, remove the seal if applicable, unscrew the sealing screws and lift
the cover upwards to remove.
Figure 2.3.1

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Chapter 2: Installation
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2. To attach the bottom terminal cover back onto the meter, place the left side of the cover
down into the groove 󳆂rst and then press down onto the right side, see Figure 2.3.1. When in-
stalled correctly, you will hear a clicking sound. The steps to attach the top cover is to apply the
right side of the cover down into the groove and press down onto the left side.
Figure 2.3.2
3. After inserting the cover, tighten the sealing screws and place the seal.
Figure 2.3.3

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AcuRev 1312
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DIN-Rail Power Meter
Terminals:
This manual will use V1, V2 and V3 to represent the three-phase conductors, which is the same
as Va, Vb and Vc in other literature.
Figure 2.3.4
Auxiliary Power Supply:
The AcuRev 1312 power meter requires an AC supply of 100-415V at 60Hz for operation. In nor-
mal operation, the power consumption of the meter is less than 1 Watt so the meter can be
powered by either an independent power supply or it can obtained from the circuit under test.
It is suggested that if the power is obtained from a source with large power 󳆃uctuation then a
voltage stabilizer be used. A fuse (typically 1A/250Vac) is also suggested to be used when con-
necting the power supply to the meter.
The typical auxiliary power supply wiring is as follows:
1 A, B, S RS-485 Communication Terminals;
2 P1, P2 Pulse Output
3 L, N Auxiliary Power
4 V1, V2, V3, Vn Voltage Input Terminals
5 I11, I12, I21, I22, I31, I32, I41, I42 Current Input Terminals
6 R1, R2 Relay Output Terminals.
A B S I11 I12 I21 I22 I31 I32 I41 I42
L N V1 V2 V3 VN
R1 R2 P1 P2
SET

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Chapter 2: Installation
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Figure 2.3.5
The meter requires AWG22-14 as the wires to connect the power supply.
Voltage Input:
The AcuRev 1312 can measure up to 240V LN/415V LL AC for a three phase system or 400VLN AC
for a single phase system.
Potential Transformers (PT’s) must be used when the system voltage is higher than the meter’s
rated voltage. The rated secondary output from the PT is typically 100V-120V. Please ensure to
select an appropriate PT that will maintain the measurement accuracy of the AcuRev 1312. For
measuring a system with a WYE wiring con󳆂guration, the PT’s rated input or primary voltage rat-
ing should be equal to or close to the phase voltage of the system to utilize the full range of the
PT that will be used. Similarly, when measuring a system with a Delta wiring con󳆂guration then
the PT’s rated input or primary voltage rating should be equal to or close to the line voltage of
the system.
A fuse that is rated for 1A/600V should be used when connecting the voltage inputs to the meter.
The meter requires AWG22-14 as the wire size to the voltage input terminals.
Current Input:
Current Transformer’s(CT’s) are used in most practical applications. The AcuRev 1312 supports
four CT input types, 5A, 1A, 80mA and 100mA. CT’s must be used if the system’s rated current
is greater than 5A. The CT used should be Measurement Canada approved to maintain revenue
grade accuracy of system. The distance between the CT and the meter should be as short as
possible as the length of the of CT leads will a󳆁ect the accuracy.
The meter requires AWG22-14 as the wire size to the current input terminals.
Note: The secondary side of the CT should not be open circuit in any circumstance when the
system is energized. There should not be any fuse or switch in the CT loop. It is suggested to
ground one end of the CT secondary.
1A FUSE
L
NAcuRev 1312
Power Supply

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AcuRev 1312
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DIN-Rail Power Meter
The AcuRev 1312 meter supports di󳆁erent wiring con󳆂gurations for both three phase and single
phase systems. Please read this section carefully before choosing a suitable wiring method for
your monitoring your system.
Here are some of the common installation methods, their respective diagrams and meter con-
󳆂gurations for the AcuRev 1312 meter.
1. Three Phase: 4 wire-connection: (Three Phase with a neutral)
Wiring mode 3LN. Three CT's needed for this connection.
Common voltages for this connection: 120V LN/208V LL, 240V LN/415V LL
Figure 2.3.6a-3LN wiring diagram using three 5A CT's
ABCN
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1312
LOAD
Terminal Block
ABCN
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1312
LOAD
Terminal Block
Figure 2.3.6b-3LN wiring diagram using three mA CT's

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2. Three Phase: 3 wire-connection (Three phase without a neutral)
The wiring mode is set to 2LL. Two CT's needed for this connection.
With Potential Transformers (PTs) - PTs are required if the system voltage is higher than
690V LL. Instead of connecting the voltage lines directly to the meter, the voltage lines are
connected to the meter using PTs. The PTs should be connected as shown below.
Note: Only two PTs are needed for this connection
Terminal Block
ABC
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1312
LOAD
Figure 2.3.7a-2LL wiring diagram using two 5A CT's
Figure 2.3.7b-2LL wiring diagram using three mA CT's
ABC
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1310
LOAD
Terminal Block
1
2
3
4
5
6
10 98 7

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AcuRev 1312
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DIN-Rail Power Meter
3. Single Phase: 2 Lines (Single phase with one line and a neutral)
The wiring mode is set to 1LN. One CT needed for this connection.
Common Voltage for this connection: 120V
Figure 2.3.8a-1LN wiring diagram using one 5A CT
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1312
AN
LINE
LOAD
1A FUSE
Terminal Block
Figure 2.3.8b-1LN wiring diagram using one mA CT
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1312
AN
LINE
LOAD
1A FUSE
Terminal Block

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Chapter 2: Installation
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4. Single Phase: 3 Lines (Single phase with 2 lines and a neutral)
The wiring mode is set to 1LL. Two CT's needed for this connection
Common Voltage: 120V LN/240V LL
Figure 2.3.9a-1LL wiring diagram using two 5A CT's
Figure 2.3.9b-1LL wiring diagram using two mA CT's
ANB
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1312
LOAD
Terminal Block
ANB
LINE
1A FUSE
I11
I12
I21
I22
I31
I32
VNV3 V2 V1
AcuRev 1310
LOAD
Terminal Block