Setra Systems L series Specifications download pdf (Page 6)

INTRODUCTION

The Power Patrol meter monitors the voltage, current, power, energy, and many other electrical

parameters on single- and three-phase electrical systems. A Power Patrol meter uses direct connections

to each phase of the voltage, and uses current transformers or Rogowski coils to monitor each phase of

the current. Information on energy use, demand, power factor, line frequency, and more are derived

from the voltage and current inputs.

The communications interface to the meter is an USB communication, or RS-485 serial/Ethernet

connection that uses the BACnet Master Slave Token Passing (MS/TP) protocol or Modbus protocol for

sending commands and retrieving data. A separate remote terminal unit (RTU), Data Logger, or Building

Management and Control System is usually connected to the Power Patrol to provide data recording

and trend logging plus a human interface or display.

POWER PATROL

The Power Patrol is light-weight and compact enough to

mount within an electrical panel. It is typically used for

long-term monitoring of electrical systems.

Up to 127 Power Patrol meters may be connected to a

single BACnet client for monitoring and recording power

usage at multiple locations within a single site. Up to 247

meters may be connected to Modbus.

There is a configurable digital pulse output port on the

Power Patrol that can be used to output kWh, kVARh, or kVAh pulses to external devices, or to toggle on

and off to control a remote device or relay.

Power Patrol Meter Safety Summary and Specifications

This general safety information is to

be used by both the Power Meter

operator and servicing personnel.

Setra Systems, Inc. assumes no

liability for user’s failure to comply

with these safety guidelines.

PS3037-X-X

These items conform to the

following:

Conforms to UL Std 61010-1, 3rd

Edition & IEC 61010-2-030, 1

Edition

Certified to CSA Std C22.2 No.

61010-1, 3rd Edition

The Power Patrol is an over-voltage Category III device. Use approved rubber gloves with mechanical protection and

goggles when operating the device.

CAUTION: THIS METER MAY CONTAIN LIFE THREATENING VOLTAGES. QUALIFIED PERSONNEL MUST DISCONNECT

ALL HIGH VOLTAGE WIRING BEFORE USING OR SERVICING THE METER.

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Setra Systems L series Specifications Page 6