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 Programmable Digital Thermostat'); "(STP) Programmable Digital Thermostat")
STP Programmable Digital Thermostat
Suitable for heating and cooling applications. Can also be connected to a humidity or temperature transmitter with 4~20mA outputs.
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Universal Input:
- Thermocouple Types J & K (-30°C to +999°C)
- 3-wire Pt100 (-199°C to +650°C)
- 4~20mA (fit external 250 Ω resistor)
- Display: 3-digit red LED (0.1°C resolution selectable)
- Control Method: On / Off
- Control Output: Relay (15A/250V) or Solid State Relay
- Alarm Output: Relay (3A/250V)
- Accuracy: 0.5% FS
- Sampling Time: 0.5 seconds
- Working Environment: 0~50°C, less than 80% RH (non-condensing)
- Power Supply: 100~240 V AC or 21~30 V AC/DC
- Dimensions: 75 x 33 x 70mm
- Mounting: Panel-mounted with drilling template 71mm x 29mm
| Description | Order Code |
|---|---|
| Relay Output, 110/240 V AC | STP321 |
| Relay Output, One Alarm, 110/240 V AC | STP322 |
| SSR Output, 110/240 V AC | STP321S |
| SSR Output, One Alarm, 110/240 V AC | STP322S |
| Relay Output, 21-30 V AC/DC | STP321A |
| Relay Output, One Alarm, 21-30 V AC/DC | STP322A |
| SSR Output, 21-30 V AC/DC | STP321SA |
| SSR Output, One Alarm, 21-30 V AC/DC | STP322SA |
Rear view showing wire connections:
 |  |
 (SSR) Solid State Relay |  (CH102) 4-Digit Dual Display PID Temperature Controller (48mm x 48mm x 100mm) |
