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Series
40
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Digital Temperature Switch
- Low Cost
- Uses Standard Probes
- On/Off Output
- Adjustable On-Off Differential
- Heats or Cools
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The Series 40 is an on/off digital thermoregulator designed to accept thermocouple or RTD inputs and provide single or dual relay output. The Series 40 temperature switch is ideal for heating or cooling applications. Temperature measurements are displayed on the bright red LED. Programming is quick and easy using the front panel keys. The front panel also meets NEMA 4 (IP65) requirements. The unit features selectable temperature units (°F or°C), audible alarm, output status indication, load protection, and password protection.
Series 40 Low Cost Digital Temperature Switch -- Single Relay
Model
Number |
Supply Voltage |
Degrees |
| 10140 |
110 VAC |
ºF |
| 11140 |
110 VAC |
ºC |
| 20140 |
230 VAC |
ºF |
| 21140 |
230 VAC |
ºC |
| 40140 |
24 VAC/DC |
ºF |
| 40A-312 |
24 VAC/DC |
ºC |
Series 40 Low Cost Digital Temperature Switch -- Dual Relay
Model
Number |
Input |
Power Switch |
| 40A-121 |
RTD |
110 VAC |
| 40A-221 |
Type J |
110 VAC |
| 40A-321 |
Type K |
110 VAC |
¹NOTE: Internal buzzer not available on 2 relay output.
Specifications
Inputs: Thermocouple: Type J, Type K; RTD: 100O DIN (0.00385 curve).
Working Ranges (by order code):
32 to 999°F (0 to 700°C) for "J" thermocouple;
32 to 999°F (0 to 999°C) for "K" thermocouple;
-58 to 999°F (-50 to 600°C) for 2 or 3 wire Pt 100 DIN probe.
Setpoint Range: From -99 to 999°F (-99 to 999°C).
Outputs: 10A @ 250 VAC SPDT relay (change-over contact).
Control Type: On-off with adjustable hysteresis.
Power Requirements: 230 VAC, 50/60 Hz, 1.5 VA; 115 VAC, 50/60 Hz, 1.5 VA; or 24 VAC, 50/60 Hz, 1.5 VA (by model).
Display: One red LED 3-digit display 0.51 in. (13.2 mm) high, output status indicator, temperature unit of measure indicators.
Resolution: 1°F or 1°C for all inputs, 0.1°C for DIN RTD input.
Ambient Temperature: 10-90% RH, non-condensing from 32 to 131°F (0 to 55°C).
Weight: 6.75 oz (190 g).
Front Panel Protection: NEMA 4 (IP65).
Alarm Buzzer: Internal, included.
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