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CURRENT INPUTS

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SPECIFICATIONS

INPUT SIGNAL
Options

4-20mA
0-20mA
0-5V DC
1-5V DC
0-10V DC
or to customer order

INPUT IMPEDANCE

4-20mA/0-20mA     250ohm
other values to order
0-5V/1-5V/0-10V   >250kohm

RELAY RATING

10A 400V 2500VA
10A 30V DC 

POWER SUPPLY
Options

110V 50/60Hz.
230V 50 Hz.

POWER CONSUMPTION

4VA approx. (old models 6VA).

TEMPERATURE LIMITS

-5/+60°C

HUMIDITY LIMITS

0-90% RH
non condensing

SETTING ACCURACY

5% Typical

REPEATABILITY

< 0.5%.

I.Q Instruments CC

P.O. Box 1411

Randburg 2125

Tel. (011) 792 1210

Fax. (011) 793 6863

http://www.iqinstruments.com

[email protected]

Summary of Contents for 1200

Page 1: ...e on pin 6 to power 4 20mA loops or other equipment The maximum rating for this output is 30mA and later model units have a current limiter set at around 25mA to prevent this from being exceeded Some earlier models were not current limited and it is possible to damage these units by drawing excess current from this pin A small number of units have been supplied with 24V DC power supplies usually f...

Page 2: ... than 12mA will not 0 is represented by 4mA If the current loop were to break there would be 0mA in the loop which would not give an alarm as it is still below 50 By selecting the failsafe option the alarm condition would be generated if the current falls below 4mA as well as above 12mA thereby providing a warning of loop failure Failsafe action may be selected for either or both relays Usually it...

Page 3: ...minals 5 7 when indication is required Units may be connected in series to obtain more set points When using the internal 24V power supply only one unit should power the loop from pin 6 The other units must be wired for external supply operation See drawings on page 7 When connecting units in series each unit will drop 5 volts at 20mA As most 4 20mA loops are powered from 24V DC there is the possi...

Page 4: ...V 0 10V 250kohm RELAY RATING 10A 400V 2500VA 10A 30V DC POWER SUPPLY Options 110V 50 60Hz 230V 50 Hz POWER CONSUMPTION 4VA approx old models 6VA TEMPERATURE LIMITS 5 60 C HUMIDITY LIMITS 0 90 RH non condensing SETTING ACCURACY 5 Typical REPEATABILITY 0 5 I Q Instruments CC P O Box 1411 Randburg 2125 Tel 011 792 1210 Fax 011 793 6863 http www iqinstruments com sales iqinstruments com ...

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