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RDP DR7AC User Manual

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RDP CUSTOMER DOCUMENT
Technical Manual
TRANSDUCER AMPLIFIER
TYPE DR7AC
Doc. Ref CD2402M
Affirmed by Declaration
of Conformity
USA & Canada
RDP Electrosense Inc.
2216 Pottstown Pike
Pottstown, PA 19465
U.S.A.
Tel (610) 469-0850
Fax (610) 469-0852
E-mail info@rdpe.com
www.rdpe.com
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RDP DR7AC Specifications

General IconGeneral
BrandRDP
ModelDR7AC
CategoryAmplifier
LanguageEnglish

Summary

Introduction to the DR7AC Transducer Amplifier

DR7AC Electromagnetic Compatibility Certificate

Installation Instructions for DR7AC Unit

EMC Requirements for Installation

Guidelines for cable shielding, grounding, and segregation for optimal EMC performance.

DR7AC Unit Mounting Procedures

Instructions for mounting the DR7AC unit on a 35 mm DIN rail, including spacing.

General Connections and Internal Controls

DR7AC Connections Overview

Details on transducer, supply, and output connections using screw-clamp terminals.

Accessing DR7AC Internal Controls

How to access and identify internal controls like gain, zero, and jumpers.

Transducer Connections: LVDT and Half Bridge

DR7AC Controls and Adjustments

Voltage and Current Output Configuration

Specifies voltage and current output connections between pins.

Coarse Gain Selection Method

How to select gain ranges using the SW1 toggle switch for transducer output.

Fine Gain Adjustment

Description of the 25-turn potentiometer for fine gain adjustment.

Coarse Zero Adjustment

Explanation of the 5-way toggle switch (SW2) for output zero shifts.

Additional DR7AC Controls and Settings

Zero Input Functionality

Details on SW2 toggle 6 for zeroing signal input voltage.

Fine Zero Adjustment Control

Description of the 25-turn potentiometer for fine zero adjustment.

Over-Range Indicator Function

Explanation of the red lamp indicating input exceeding the linear range.

Excitation Voltage Configuration

Information on changing the unit's excitation voltage from 1V to 3V.

Excitation Frequency Adjustment

How to change the excitation frequency using jumper J1.

Master/Slave Configuration

Configuration of the unit as master or slave oscillator using jumper J2.

Setting Up Procedures for Transducers

LVDT and Half Bridge Transducer Setup

Step-by-step procedure for setting up LVDT and half bridge transducers.

Bipolar Output Configuration Setup

Procedure for setting up bipolar output configurations like ±5V or 4-20mA.

Unipolar Output Configuration Setup

Procedure for setting up unipolar output configurations like 0 to 10V.

DR7AC Technical Specifications

Warranty and Service Information