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 The Series SC1090 Thermocouple
Limit/Alarm Switch Modules are on-off or limit switches
with selectable process signal. Input type, scale range, output
action, and output type are all selectable by the user in the
field. All selections are made through easily accessible switches
without the need to open the product. Each unit has two form
C (SPDT) relays which can operate independently, or be logically
connected to operate as a DPDT output. A two color LED indicator
indicates the status of each output relay.
These units mount easily on a standard 35mm DIN rail. Low Voltage
(SCL XXXX) units are also available.
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Power Supply: (SC units) 85 to 265 VDC/VAC 50 to 400
Hz (12-24 VDC, VAC 50-400 Hz for Low Voltage Option, SCL units).
Isolation: 1500 V rms between outputs, input, and power.
Set Points: Adjustable 0 to 100% of span.
Deadband: Adjustable 0.25% to 100% of span.
Drift: ±0.02%/°C typical ±0.05%/°C maximum.
Ambient Temperature Range: Operating: 32 to 131°F (0 to 55°C).
Storage: -40 to 176°F (-40 to 80°C).
Input Impedance: (1090) Voltage input = 1 megohms, Current input = 10
ohms.
Sensor Burnout Protection: Selectable.
Relay Output: Form C, SPDT, one per set point, 5A @ 250 VAC, resistive.
Latch Circuit Reset: Automatic at power up. Manual with reset switch
on front of module.
Indicators: One dual color LED per set point. Red = relay on, green
= relay off.
Wiring Terminals: Screw driven compression type.
Dimensions: 2.95" H x 0.89" W x 3.89" D (75 x 22.5 x 98.5 mm).
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