Moore Industries DPS 240 User Manual

May 2016
221-703-00 E

240 Milliamp

DIN-style Power Supply

DPS

240 Milliamp

DIN-style Power Supply

DPS

Table of Contents

Introduction 1
Description 1
Calibration 3
Installation 5
Troubleshooting 7

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DPS

Introduction

The DPS 240 is Moore Industries’ 240 milliamp (mA)
DIN-style Power Supply. It is a highly accurate, ad­justable unit, most often used to power 2-wire trans­mitters. It is also ideal for use with data
communications
modules like Moore Industries’ Link Converter Module
(LCM), or Redundant Link Module (RLM).

Unit features include continuous short circuit and
short-term overload protection, input/output isolation,
and a derated circuit design for added dependability.

This manual contains the description, specifications,
calibration information, and installation procedures for
the DPS 240.

Description

The DPS 240 is a compact unit; particularly well­suited for use in industrial environments where avail­able installation space is at a premium. It is enclosed
in a standard, DIN-style, aluminum housing de­signed to be installed on a standard “G-rail” (not in­cluded). This rail can then be mounted on a wall, in a
rack, or in a NEMA enclosure. Each DPS 240 is ca­pable of powering twelve 4-20 mA loops.

The front panel of the the unit features potentiometers
for adjustment of voltage and current limit, test jacks
for auxiliary connection of calibration equipment, and
a red LED indicator that lights when dc output is
present.

The terminal blocks, three for input and eight for out­put, can be set into either the front or rear panel, ac­cording to customer specification.

The unit is available in 24- or 42-Vdc output configu­rations. A potentiometer on the front panel allows for
adjustment of the output ±5.0%.

Input voltage can also be specified by the customer,
and is available set to 117, 220, or 240 Vac, 50/60
Hz.

The equipment specifications for the DPS 240
are listed in table 1.

Serial Number. A complete, serial-number-depen-

dent history is kept on every unit that Moore Indus­tries sells and services. For service information,
provide the factory with the serial number of the unit
that requires
attention. The serial number is stamped on a label,
and affixed to the side panel.

Model Number. Moore Industries’ model numbers

identify the type of instrument, functional characteris­tics, any options ordered, and the housing type. The
model number reflects the way the unit was config­ured when it originally left the factory. It is all that is
needed to identify the operational characteristics of
the power supply. The number appears on the same
label as the serial number.

The following example outlines the significance of
each field in a typical DPS 240 model number.

Page 1

DPS

EXAMPLE

Unit Type

OutPut Voltage

Current

Power

Options(s)

Housing

DPS / 24VDC / 240 MA / 117AC/ -FA / [DIN]

Table 1. DPS 240 Equipment Specifications

Characteristics

Input Power

Input Frequency

Output

Performance Efficiency

Environmental Conditions

Weight

NOTE: Refer to the Installation Section of this manual for unit dimensions.

Specifications

117, 220, or 240 Vac (factory-configured according to customer requirement)

48 to 62 Hz
Supply Type: Linear

24 or 42 Vdc, 240 mA (factory-configured according to customer requirement),
adjustable ±5.0% with front panel potentiometers
Regulation: 0.5% maximum, low line to high line

70% typical, rated at full load

Load: 1.0% maximum, no load to full load
Ripple: 50 mV peak-to-peak, maximum
Isolation: Input/Output/Unit Housing = 1100 Vrms

Ambient Temperature Operating Range: 0 to +70 °C (+32 to +158 °F)
Effect on Unit: ±0.03% per °C over the range specified

765 grams (1 pound, 11 ounces)

Page 2