Detcon 500-503200-000 Signal Zoning Module Bedienungsanleitung PDF herunterladen

Signal Zoning Module - Part #500-503200-000

Gas Detection System Accessory

Operator's Instruction Manual

DESCRIPTION

Detcon Part #500-503200-000 signal zoning module is a 4-20 MA multiplexer designed to receive up to 8

inputs and continuously output the highest signal. The circuit can be used to zone sensors to a single con-

trol module, computer or other recording device, reducing installation cost while expanding detection cov-

erage. Field wiring from the controller to the zoning module consists of 4 conductors; +24 VDC, common,

+4-20 MA and signal common.

Note: All 4-20 milliamp signals (8 inputs and 1 output) must loop to the same common (-24

VDC) source.

ZERO AND SPAN ADJUSTMENTS

The zero and span adjust potentiometers are factory set and should require no further adjustment. If

adjustment is necessary follow the procedure below to calibrate.

Tools required: Jewelers screwdriver and a digital volt-ohm meter capable of reading milliamps DC.

01. Remove all signal inputs from the signal input connector.

02. Install a 250 ohm resistor from the 4-20 MA output terminal to the common terminal.

03. Place the digital test probes in TP1 (+) and TP2 (–).

04. Adjust the zero potentiometer (R9) until the volt-meter reads 40 millivolts (this corresponds to 4 MA).

05. Input a 20 milliamp signal into one of the 8 signal input terminals.

06. Adjust the span potentiometer R12 until the volt-meter reads 200 millivolts (this corresponds to 20 MA).

Calibration is complete.

Shipping address: 3200 A-1 Research Forest Dr., The Woodlands, Texas 77381

Mailing address: P.O. Box 8067, The Woodlands, Texas 77387-8067 ❏ Phone: (281) 367-4100 ❏ Fax: (281) 292-2860

detcon inc.

TP2 TP1

R9 ZERO

R12 SPAN

24 VDC IN

4-20 MA OUT (Loop to Common)

DISCREET 4-20 MA INPUTS

Zero and Span adjustments are factory set.

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Signal Zoning Module - Part #500-503200-000Gas Detection System AccessoryOperator's Instruction ManualDESCRIPTIONDetcon Part #500-503200-000 sign

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Detcon 500-503200-000 Signal Zoning Module Bedienungsanleitung