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Crompton 239 Meter Relay.
              
Crompton 239 meter relays combine a highly accurate indicator with High and Low set point relays.
Operate alarm and control devices when the monitored signal value moves outside the chosen set point limits shown by adjustable red index pointers.    
 Crompton 239 Meter Relay Prices       239 Meter Relay Data Sheet
 
 
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        Physicals
Input signal ratings 100/125 V, 200/250V 380/440V or 480V system via transducer
D.C. Voltage: 10mV to 800V - 10 ./V
D.C. Current: 1µA to 15A - 20mV drop4/20mA
A.C. Voltage: 10V to 600V - 10K ./Vor 100K ./V
A.C. Current: 1A - 15A suitable for motor start application
5A CT operation - 0.5VA
Thermocouples: Standard outputs minimum 10mV Span
RTD operation: 10Copper100Platinum 0 to 200°C, 0 to 150°C
(32° to 392°F, 32 ° to 302°F) or 20 to 140°C (68° to 284°F)
Overloads: 1.2 x continuous, up to 200V/100mA -10 x for 10 sec.
Frequency monitoring: 45/65Hz or 55/65Hz
Indicator Accuracy: Maximum error 1.5%
Damping time: 1 sec.
4" Scale: 100° deflection
Set point accuracy: Max error 1.5%
Repeatability: 0.5% Differential: 1% of span
Operating time: 250m sec to 10 sec
Set-point Adjustments: Single - 100% of scale Double - 98%