PowerLogic PM820 User manual

PowerLogic®Series 800 Power Meter
Central de medida de la serie 800
Centrale de mesure de la série 800
PM820, PM850, PM870
63230-500-224A1 6/2006
Retain for future use.
Consérvese para futuras consultas.
À conserver pour une utilisation ultérieure
Installation manual
Manual de instalacion
Manuel d’installation

© 2006 Schneider Electric All Rights Reserved EN–i
ENGLISH
HAZARD CATEGORIES AND SPECIAL SYMBOLS
Read these instructions carefully and look at the equipment to
become familiar with the device before trying to install, operate,
service, or maintain it. The following special messages may appear
throughout this bulletin or on the equipment to warn of potential
hazards or to call attention to information that clarifies or simplifies a
procedure.
The addition of either symbol to a “Danger” or “Warning” safety label
indicates that an electrical hazard exists which will result in personal
injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
NOTE: Provides additional information to clarify or simplify a
procedure.
PLEASE NOTE
Electrical equipment should be installed, operated, serviced, and
maintained only by qualified personnel. No responsibility is assumed
by Schneider Electric for any consequences arising out of the use of
this material.
DANGER
DANGER indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not avoided,
can result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided,
can result in minor or moderate injury.
CAUTION
CAUTION, used without the safety alert symbol, indicates a potentially
hazardous situation which, if not avoided, can result in property damage.

© 2006 Schneider Electric All Rights Reserved
EN–ii
ENGLISH
CLASS A FCC STATEMENT
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense. This Class A
digital apparatus complies with Canadian ICES-003.

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Table of Contents
EN–iii
ENGLISH
CHAPTER 1—TABLE OF CONTENTS
CHAPTER 1—INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Topics Not Covered in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Power Meter Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Power Meter Without Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power Meter With Remote Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Power Meter Parts and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Box Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CHAPTER 2—SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CHAPTER 3—INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Power Meter With Integrated Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mounting a Power Meter with an Integrated Display . . . . . . . . . . . . . . . . . . . . . . . . . 17
Replacing Analog Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power Meter Without Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Power Meter With Remote Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PM8RDA Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PM8RDA Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PM8RD Dimensions and Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Square Cutout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Surface Mount for CM3000/CM4000 Display Retrofit . . . . . . . . . . . . . . . . . . . . . . . . 24
Replacing Analog Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CHAPTER 4—WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Supported System Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
CHAPTER 5—COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Onboard Communications Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Daisy-chaining Devices to the Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2-wire Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
4-wire Devices for 2-wire Modbus or Jbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Connecting the First Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Terminating the Communications Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Using the MCT2W Terminator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Connecting to a 4-Wire Daisy Chain (CM2000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Connecting to an Ethernet Gateway (EGX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Meter With Remote Display Communications Capabilities . . . . . . . . . . . . . . . . . . . . . 42
Power Meter With Remote Display Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
RS485, 4-wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
RS485, 2-wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Table of Contents 6/2006
EN–iv
ENGLISH
RS232 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
CHAPTER 6—OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Operating the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
How the Buttons Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Changing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
CHAPTER 7—MINIMUM SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Set Up the Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Set Up CTs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Set Up PTs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Set Up Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Set Up the Meter System Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power Meter With Integrated Display Communications Setup . . . . . . . . . . . . . . . . . . . . 53
Power Meter With Remote Display Communications Setup . . . . . . . . . . . . . . . . . . . . . . 54
Comm1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Comm2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
CHAPTER 8—MAINTENANCE AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power Meter Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Identifying the Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Viewing the Display in Different Languages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Heartbeat LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
APPENDIX A—SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Power Meter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 1—Introduction
EN–1
ENGLISH
CHAPTER 1—INTRODUCTION
About This Manual
This instruction manual explains how to install and set up a
PowerLogic®Series 800 Power Meter. Unless otherwise noted, the
information contained in this manual refers to the following Power
Meters:
•Power Meter with integrated display
•Power Meter without a display
•Power Meter with a remote display.
Refer to “Power Meter Parts and Accessories” on page EN–6 for all
available models and model numbers. For a list of supported
features, see “Features” on page EN–8.

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 1—Introduction 6/2006
EN–2
ENGLISH
Topics Not Covered in This Manual
Some of the power meter’s advanced features, such as onboard data
logs and alarm log files, can only be set up over the communications
link using System ManagerTM Software (SMS) from PowerLogic. This
power meter instruction bulletin describes these advanced features,
but does not explain how to set them up. For instructions on using
SMS, refer to the SMS online help and the SMS setup guide, which is
available in English, French, and Spanish. See Table 1–1 for a list of
power meter models supported by SMS.
NOTE: For additional information, download the reference manual at
powerlogic.com. Select your country > Literature > Meters > Series
800 Power Meter > Instructional > PM800 Reference Manual.
Table 1–1: Power Meter Models Supported By SMS
SMS Type SMS Version PM820 PM850 PM870
SMS121 3.3.2.2 or higher 99—
SMS1500 3.3.2.2 or higher 99—
SMS3000 3.3.2.2 or higher 99—
SMSDL 4.0 or 4.0 with Service Update 1 99—
4.0 with Service Update 2 or higher 999
SMSSE 4.0 or 4.0 with Service Update 1 99—
4.0 with Service Update 2 or higher 999
SMSPE 4.0 or 4.0 with Service Update 1 99—
4.0 with Service Update 2 or higher 999

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 1—Introduction
EN–3
ENGLISH
Power Meter Hardware
Figure 1–1: Parts of the Series 800 Power Meter
1
23
5
6
7
4
8
Bottom View
Back View
PLSD110042
Table 1–2: Parts of the Power Meter
No. Part Description
1Control power supply
connector Connection for control power to the power meter.
2 Voltage inputs Voltage metering connections.
3 I/O connector KY pulse output/digital input connections
4 Heartbeat LED A green flashing LED indicates the power meter is ON.
5 RS485 port (COM1) The RS485 port is used for communications with a monitoring and
control system. This port can be daisy-chained to multiple devices.
6 Option module connector Used to connect an option module to the power meter.
7 Current inputs Current metering connections.
8 Integrated display Visual interface to configure and operate the power meter.

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 1—Introduction 6/2006
EN–4
ENGLISH
Power Meter Without Display
Figure 1–2: Parts of the Series 800 Power Meter without display
1
2
3
5
6
7
4
Bottom View
Back View
PLSD110317
Table 1–3: Parts of the Series 800 Power Meter Without Display
No. Part Description
1 Control power supply connector Connection for control power to the power meter.
2 Voltage inputs Voltage metering connections.
3 I/O connector KY pulse output/digital input connections
4 Heartbeat LED A green flashing LED indicates the power meter is ON.
5 RS485 port (COM1) The RS485 port is used for communications with a monitoring and
control system. This port can be daisy-chained to multiple devices.
6 Option module connector Used to connect an option module to the power meter.
7 Current inputs Current metering connections.

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 1—Introduction
EN–5
ENGLISH
Power Meter With Remote Display
NOTE: The remote display (PM8RD) is used with a power meter
without a display. See “Power Meter Without Display” on page EN–4
for the parts of the power meter without a display.
Figure 1–3: Parts of the remote display and the remote display adapter
2
3
1
TX/RX
4 5 6 87
PLSD110042
PM8RDA Top View
Table 1–4: Parts of the Remote Display
No. Part Description
1 Remote display adapter (PM8RDA) Provides the connection between the remote display and the power meter, and provides an additional RS232/RS485
connection (2- or 4-wire).
2 Cable CAB12 Connects the remote display to the remote display adapter.
3 Remote display (PM8D) Visual interface to configure and operate the power meter.
4 Communications mode button Use to select the communications mode (RS232 or RS485).
5 Communications mode LED When lit the LED indicates the communications port is in RS232
mode.
6 RS232/RS485 port The RS485 port is used for communications with a monitoring and
control system. This port can be daisy-chained to multiple devices.
7 Tx/Rx Activity LED The LED flashes to indicate communications activity.
8 CAB12 port Port for the CAB12 cable used to connect the remote display to
the remote display adapter.

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 1—Introduction 6/2006
EN–6
ENGLISH
Power Meter Parts and Accessories
Table 1–5: Power Meter Parts and Accessories
Description Model Number
Square D Merlin Gerin
Power Meters
Power Meter with Integrated Display
PM820➀
PM850➁
PM870➂
PM820MG➀
PM850MG➁
PM870MG➂
Power Meter without Display
PM820U➀
PM850U➁
PM870U➂
PM820UMG➀
PM850UMG➁
PM870UMG➂
Power Meter with Remote Display
PM820RD➀
PM850RD➁
PM870RD➂
PM820RDMG➀
PM850RDMG➁
PM870RDMG➂
Accessories
Remote Display with Remote Display
Adapter PM8RD PM8RDMG
Remote Display Adapter PM8RDA
Input/Output Modules PM8M22, PM8M26, PM8M2222
Cable (12 inch) Extender Kit for
displays RJ11EXT
Retrofit Gasket (for 4 in. round hole
mounting) PM8G
CM2000 Retrofit Mounting Adapter PM8MA
➀The Power Meter units for these models are identical and support the same features (see “Features” on
page EN–8).
➁The Power Meter units for these models are identical and support the same features (see “Features” on
page EN–8).
➂The Power Meter units for these models are identical and support the same features (see “Features” on
page EN–8).

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 1—Introduction
EN–7
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Box Contents
Table 1–6: Box contents based on model
Model Description Box Contents
Power Meter with Integrated Display
• Power Meter with integrated display
• Hardware kit (63230-500-16) containing:
— Two retainer clips
— Template
— Install sheet
— Lugs
— Plug set
— Terminator MCT2W
• Power Meter installation manual
Power Meter without Display
• Power Meter without display
• Hardware kit (63230-500-16) containing:
— Two retainer clips
— Template
— Install sheet
— Lugs
— DIN Slide
— Plug set
— Terminator MCT2W
• Power Meter installation manual
Power Meter with Remote Display
• Power Meter without display
• Remote display (PM8D)
• Remote display adapter (PM8RDA)
• Hardware kit (63230-500-42) containing:
— Two retainer clips
— Communications cable (CAB12)
— Mounting screws
— Crimp connector
— Communications connector
— Terminator MCT2W
• Power Meter installation manual

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 1—Introduction 6/2006
EN–8
ENGLISH
Features
Table 1–7: Series 800 Power Meter Features
PM820 PM850 PM870
True rms metering to the 63rd harmonic 999
Accepts standard CT and PT inputs 999
600 volt direct connection on voltage inputs 999
High accuracy — 0.075% current and voltage (typical conditions) 999
Min/max readings of metered data 999
Input metering (five channels) with PM8M22, PM8M26, or PM8M2222
installed 999
Power quality readings — THD 999
Downloadable firmware 999
Easy setup through the integrated or remote display (password protected) 999
Setpoint-controlled alarm and relay functions 999
Onboard alarm logging 999
Wide operating temperature range: –25° to +70°C for the power meter
unit 999
Communications:
Onboard: one Modbus RS485 (2-wire)
PM8RD: one configurable Modbus RS232/RS485 (2- or 4-wire)
9
9
9
9
9
9
Active energy accuracy: IEC 62053-22 and ANSI C12.20 Class 0.5S 999
Nonvolatile clock 999
Onboard data logging 80 KB 800 KB 800 KB
Real-time harmonic magnitudes and angles (I and V):
To the 31st harmonic
To the 63rd harmonic
9
—
—
9
—
9
Waveform capture
Standard
Advanced
—
—
9
—
9
9
EN50160 evaluations — 99
Current and voltage sag/swell detection and logging — — 9

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 1—Introduction
EN–9
ENGLISH
Firmware
This instruction bulletin is written to be used with firmware version
10.5. See “Identifying the Firmware Version” on page EN–56 for
instructions on how to determine the firmware version. To download
the latest firmware version, follow the steps below:
1. Using a web browser, go to http://www.powerlogic.com.
2. Select United States.
3. Click downloads.
4. Enter your login information, then click LogIn.
5. Click PM8 Firmware under the POWERLOGIC section.
6. Follow the instructions on the web page that explains how to
download and install the new firmware.

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 1—Introduction 6/2006
EN–10
ENGLISH

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 2—Safety Precautions
EN–11
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CHAPTER 2—SAFETY PRECAUTIONS
DANGER
HAZARD OF ELECTRIC SHOCK, BURN, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe electrical
work practices. For example, in the United States, see NFPA 70E.
• This equipment must only be installed and serviced by qualified electrical
personnel.
• NEVER work alone.
• Before performing visual inspections, tests, or maintenance on this equipment,
disconnect all sources of electric power. Assume that all circuits are live until they
have been completely de-energized, tested, and tagged. Pay particular attention to
the design of the power system. Consider all sources of power, including the
possibility of backfeeding.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm that all power is off.
• Beware of potential hazards and carefully inspect the work area for tools and
objects that may have been left inside the equipment.
• Use caution while removing or installing panels so that they do not extend into the
energized bus; avoid handling the panels, which could cause personal injury.
• The successful operation of this equipment depends upon proper handling,
installation, and operation. Neglecting fundamental installation requirements may
lead to personal injury as well as damage to electrical equipment or other property.
• NEVER bypass external fusing.
• Before performing Dielectric (Hi-Pot) or Megger testing on any equipment in which
the power meter is installed, disconnect all input and output wires to the power
meter. High voltage testing may damage electronic components contained in the
power meter.
Failure to follow this instruction will result in death or serious injury.

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 2—Safety Precautions 6/2006
EN–12
ENGLISH

© 2006 Schneider Electric All Rights Reserved
63230-500-224A1 PowerLogic®Series 800 Power Meter
6/2006 Chapter 3—Installation
EN–13
ENGLISH
CHAPTER 3—INSTALLATION
Installation Considerations
When choosing a mounting location, consider the following points:
•Allow for easy access to all parts of the power meter. Allow extra
space for all wires, fuse disconnects, shorting blocks,
accessories, or other components. Make sure to route the wires
so that they do not cover the back of the unit or cooling vents on
the power meter.
•Install the power meter in a protective enclosure (for example, in
the USA use a NEMA Type 1 rated enclosure or better).
Table 3–1: Mounting Summary for Power Meter Models and Accessories
Description Model Number Section
Square D Merlin Gerin
Power Meters
Power Meter with Integrated
Display
PM820
PM850
PM870
PM820MG
PM850MG
PM870MG
“Dimensions” on page EN–15
“Mounting” on page EN–15
Power Meter without Display
PM820U
PM850U
PM870U
PM820UMG
PM850UMG
PM870UMG
“DIN Rail Mounting” on page EN–20
Power Meter with Remote Display
PM820RD
PM850RD
PM870RD
PM820RDMG
PM850RDMG
PM870RDMG
“PM8RD Dimensions and Mounting
Options” on page EN–23
Accessories
Remote Display with Remote
Display Adapter PM8RD PM8RDMG
“PM8RDA Dimensions” on page EN–
21
“PM8RD Dimensions and Mounting
Options” on page EN–23
Remote Display Adapter PM8RDA
“PM8RDA Dimensions” on page EN–
21
“PM8RDA Installation” on page EN–22
Retrofit Gasket (for 4 in. round
cutout mounting) PM8G “Replacing Analog Meters” on
page EN–18
CM2000 Retrofit Mounting Adapter PM8MA

© 2006 Schneider Electric All Rights Reserved
PowerLogic®Series 800 Power Meter 63230-500-224A1
Chapter 3—Installation 6/2006
EN–14
ENGLISH
•For European Community (CE) compliance, the disconnect circuit
breaker must be placed within reach of the power meter and
labeled: Disconnect Circuit Breaker for Power Meter.
NOTE: The disconnect circuit breaker must be rated for the short
circuit current at the connection points.
•Locate the power meter in an area where ambient conditions fall
within the acceptable range. For control power voltages above
300 Vac, the temperature range for the meter block is -25°C to
+65°C. The front display has a range of -10°C to +50°C.
NOTE: Ambient temperature refers to the immediate environment
of the power meter, including the temperature within the
enclosure in which it is mounted.
CAUTION
IMPROPER VENTILATION
• Only mount the power meter as described in this instruction
bulletin.
• Provide the clearances around the power meter as illustrated in
Figure 3–1, Figure 3–2, and Figure 3–3.
Failure to follow this instruction can result in equipment damage.