#Product Trends
Multi-Imput Programmable thermostat Model STP321, STP322
control method:heating/cooling
The STP series electronic thermostats are used to control temperature in high accurancy, and fit many circumstances.
Two models STP321(one relay output) and STP322(two relays output) can be programmed via keypad for heating and cooling control.
Technical Data:
1. Universal input for:
Thermocouples( K, J)
MA signal
Thermistor(NTC)
RTDS( PT100, Cu50, )
Linear signals( 0/1-5V, 0/4-20mA)
2. Output relays: 15A/250Vac SPDT; 5A/250Vac SPDT.
3. Accuracy: +/- 0.7 Deg. C( PT100 and PT1000)
+/-0.3 Deg. C (thermocouple)
4. Two different styles front panel on your choice, one if with silicon keys, the other is with silkscreen panel.
6. Display: 3 LED digits.
7. Resolution: 0.1 from -19.9 to 199.9 Deg. C
8. Working environment: 0 to +50Deg. C
9. Power: 100-240Vac/DC or 12-24Vdc.
10. Dimensions( W x H x Dmm): 75 x 33 x 70mm.
Optional function:
It can also be done as a humidity controller.
