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Panel Meter Relays, 239 from Crompton.   239 Panel meter relays combine a highly accurate indicator with High and Low set point relays. The relays can operate alarm and control devices when the monitored signal value moves outside the chosen set point limits shown by adjustable red index pointers.  A single compact case houses the unit which requires only the input signal and power supply thus saving space and installation time.  Panel Meter Relay Prices    Panel Meter Relay Data Sheet   239 Panel Meter Relay Physicals     Input signal ratings Frequency monitoring: 45/65Hz or 55/65Hz100/125 V, 200/250V 380/440V or 480V system via transducer D.C. Voltage: 10mV to 800V - 10 ohms per volt D.C. Current: 1µA to 15A -   4/20mA A.C. Voltage: 10V to 600V - 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. 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% Ordering information must include external power supply.  120VAC standard, Signal input and scale information is required. 239-302A  Two relays, two set points mid band de-energized, out band energized. Typical applications: High and Low alarm, High alarm plus shut down.       239-301A  One relay, one set point, upscale energized, downscale de-energized.       Typical application: High Control only       239-307A  One relay, one set point, upscale de-energized, downscale energized. Typical application: Low Control only.       239-300A  One relay, two setpoints, upscale de-energized, down scale energized. High/Low  level control, load shedding & power factor correction.       239-305A  Two relays, two set points, both upscale de-energized, downscale energized. Typical application: Frequency monitoring.       239-30TA  Two relays, two set points, Hi/Low control Operates from thermocouple input. Cold junction compensation and thermocouple break protection are standard features. Typical application: Temperature  indication / control.       239-30RA  Two relays, two set points, midband de-energized, out band energized. Operates from from 2, 3 or 4 wire resistance temperature detector (RTD). Typical application: Temperature indication / control.       239-303A  Two relays, two setpoints, both upscale energized,       239-304A  Two relays, two setpoints, high relay down scale energized, low relay upscale energizes.       239 Series Meter Relay Input Options   HG   4-20mA DC suppress zero input    LS    5 amp AC input A 5amp/10mA internal Ct is fitted permitting connection to the secondary of an external instrument transformer.   CF   Latching on both relays (Specify reset operation)   MR   Mirror Dial   FK    Thumb Screw set point adjustment.   Expanded Scale   Off-Set Zero Scale+Dual   Time Proportional Control Modules (239-30T and 239-30RA)   ET Extended Operating Temperature(-25 to 60 degrees C)   MU- BD -BE  12V 24V 48V External Power