Cooper Instruments DCM4059G Installation Manual

DCM 4059G

FIELD SELECTABLE ISOLATED STRAIN GAUGE

(BRIDGE) to DC TRANSMITTER

USER’S GUIDE

www.cooperinstruments.com

PH: 540-349-4746 • FAX: [phone]

CONTENTS

1.0 SPECIFICATIONS..................................................................................................................1

2.0 DESCRIPTION AND FEATURES ..........................................................................................2

2.1 Models & Options.............................................................................................................................. 2

2.2 Electrical Connections ......................................................................................................................2

2.3 Range Selection................................................................................................................................ 3

3.0 INSTALLATION AND SETUP................................................................................................3

3.1 Calibration.........................................................................................................................................3

3.2 Test Button........................................................................................................................................4

3.3 Operation ..........................................................................................................................................4

3.4 Range Selection................................................................................................................................ 5

4.0 FREQUENTLY ASKED QUESTIONS....................................................................................6

5.0 WARRANTY REPAIR POLICY ..............................................................................................7

CF17 ii 09/06

1.0 SPECIFICATIONS

Input Range

Minimum:
Maximum:
Millivolt output range is determined by the sensor sensitivity (mV/V) and the excitation voltage: mV/V sensitivity X

excitation voltage = total mV range

Input Impedance

200 kΩ typical

Excitation Voltage

Maximum output:
Drive capability:
Adjustability:
Fine adjustment:
Stability:

Sense Lead Compensation

Compensation better than ±0.01% per 1 Ω change in leadwire resistance
Leadwire resistance 10 Ω maximum for 10 VDC excitation for 350 Ω bridge

Zero Offset (Tare)

±100% of span in 15% increments

Shunt Calibration Resistor Provision
Option M02: Toggle switch for customer-supplied external shunt resistor

LoopTracker

Variable brightness LEDs indicate input/output loop level and status

Output Ranges

Voltage:
Bipolar Voltage:
Current (20 V compliance):

Output Linearity

Better than ±0.1% of span

Output Zero and Span

Multiturn potentiometers to compensate for load and lead variations
±15% of span adjustment range typical

Functional Test Button

Sets output to test level when pressed. Potentiometer factory set to approx 50% of span. Adjustable 0-100% of
span.

0 to 5 mV range
0 to 400 mV range

10 VDC maximum at 120 mA
Up to four 350 Ω bridges at 10 VDC
Switch-selectable, 0 to 10 VDC in 1 V increments
±5% via multiturn potentiometer
±0.01% per

Minimum
0-1 VDC
±1 VDC
0-2 mADC

0.5 mV/V sensitivity
40 mV/V sensitivity

o

C

Maximum
0-10 VDC
±10 VDC
0-25 mADC

Load Factor

1000 Ω at 20 mA

Response Time

70 milliseconds typical, faster response times are available
Option DF: 10 millisecond response time

Common Mode Rejection

100 dB minimum

Isolation

2000 V

Ambient Temperature Range and Stability

o

-10
Better than ±0.02% of span per

min. Full isolation: power to input, power to output, input to output

RMS

C to +60oC operating ambient

o

C stability

Power

Standard:
A230 option:
D option:

115 VAC ±10%, 50/60 Hz, 2.5 W max.
230 VAC ±10%, 50/60 Hz, 2.5 W max.
9-30 VDC, 3 W with 4 load cells

CF17 1 09/06