Vishay PS-1020 Installation And Operating Manual

Analog Weight Transmitter

PS-1020

Installation and Operating Manual

GB

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LIST OF CONTENTS

Section 1, General information

Introduction .............................................................. 3

Description ............................................................... 3

Specifications .......................................................... 4

Wiring connections .................................................. 5

Section 2, Calibration

Calculations ............................................................. 7

Calibration Procedure .............................................. 8

Section 3, Options

24 V Power Supply, PS-121 ................................... 11

Appendices
EC DECLARATION OF CONFORMITY

for Analog Weight Transmitter PS-1020 ... Appendix 1
EC DECLARATION OF CONFORMITY

for 24 V Power Supply PS-121 ................. Appendix 2

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Introduction

PS-1020 Analog Transmitters are electronic devices utilizing
solid-state integrated components. They provide the user with
a selectable voltage or current output directly proportional to
the input signal within a specified linearity.

Description

The transmitters are intended for field mounting close to the
vessel site, thereby reducing installation costs. An integral
20-connector terminal strip provides connections for up to
four transducers, thus eliminating the need for a separate
summing junction box.

Two screw type terminal strips provide connections for the
supply voltage, transducer wiring, and analog outputs.

The zero and span adjustments for the analog outputs are
accomplished with two sets of dip-switches and trim pots.

The units also include an adjustable filter which can be used to
stabilize the output. Filtering is used to minimize the effects of
vibration caused by agitators or other devices.

The standard packaging is an ABS plastic DIN-Rail mounted
enclosure.

The transmitters are available with an optional 24 Vdc power
supply enabling the unit to be operated with 115 Vac.
For additional information, please refer to Section 3.

SECTION 1

GENERAL INFORMATION

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Specifications

PERFORMANCE

Full Scale Range 3 mV to 30 mV
Linearity ±0.2% of full scale
Excitation Voltage 10 Vdc
Load Current 200 mA (four - 350 ohm load cells)
Thermal Stability 28 ppm/°F (full scale range)

ENVIRONMENTAL
Operating Temperature -10 to +40°C
Storage Temperature -20 to +50°C
Relative Humidity 85% non-condensing

ELECTRICAL

Input Voltage 24 Vdc ±15%
Power Consumption 6 watts max

ANALOG OUTPUT (jumper selectable)
Voltage 0 to 10 Vdc
(2kohm min load)
Current 0 to 20 or 4 to 20 mA
(500 ohm max load)

CONFIGURATION

Coarse Zero 4-position DIP-switch
Fine Zero 20-turn trim pot
Coarse Span 4-position DIP-switch
Fine Span 20-turn trim pot
Analog Filter adjustable, 270° turn trim pot

ENCLOSURE

Overall Dimensions 134 x 93 x 60 mm (L x H x D)
Mounting DIN rail mount
Material ABS Plastic
Weight 215 gram
Wiring Connections terminal blocks, pitch 5 mm

OPTIONS

230 VAC Power Supply DIN rail mount

Vishay BLH is continually seeking to improve
product quality and performance.
Specifications may change accordingly.

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