The STP321 electronic thermostat are used to indicate temperature with high degree of accuracy.

STP321 (1 relay) and STP322 (2 relays) thermostats can be configured via keypad for heating or refrigeration control..

Technical data:

1) Universal input: a) Thermocouple: K, J

                                b) RTD: Pt100, Cu50

                                c) Linear signals: 0-20mA, 4-20mA, 0-5V, 1-5V

2) Output relay: 15A/250Vac SPDT

3) Alarm relay: SPST, 3A

4) Accuracy: ±0.7 °C (PT100 and PT1000)

                       ±3 °C (thermocouple)

5) IP65 front panel with silicone rubber keys

6) Display: 3 LED digits

7) Resolution: 0.1 from -19.9 to 199.9 C

8) Working enviroment: 0 to 50 C

9) Power: 100-240Vac/dc or 12-24Vdc/ac

10) Dimensions (W x H x D):

      STP321: 75 x 33 x 70mm

      STP322: 75 x 33 x 70mm  

Option:

      STP thermostat can also be a humidity controlelr.

If you have other optional functions requests, please contact us for further discussion.

electronic thermostat