Weekly digital programmable thermostat for greenhouse
This device is a weekly digital programmable thermostat powered with 230V , for room temperature control on three stages (Comfort, Economy or Off/Antifrost) which allows to manage, on full automatic mode, double-power version devices, double-stage and one-stage, with the possibility to activate the second stage at the same time with the first one for a maximum of 200 seconds.
A third relay output is available and managed only in cooling mode, for the activation of a fan.
Furthermore this device is featured with a reset circuit for burners with block signaling and reset button, electrically separated from the programmable thermostat. This device can be used either on heating and cooling systems. The programmable thermostat is featured with a wide backlit display in order to view all the operational conditions, the hourly set program, room temperature detected by the external sensor or, if chosen, the current time. It offers the possibility to set up to 7 different programs, one for each week day, with minimum intervention time of 1/2 hour within 24 hours.
- Power supply 230V 50-60Hz
- Max Absorption 3,5VA
- Back light switch off 20 seconds if no button is pressed
- Setting range comfort 5.0°C .. 85.0°C
- Setting range Economy 5.0°C .. 85.0°C
- Antifrost ‘AFr’ Off/0.5°C..25.0°C (Default 3.0°C)
- Remote sensor offset ‘OFS1’ ± 5.0°C (Default 0.0°C)
- Remote sensor NTC 10K Ohm ±1% @ 25°C Beta 3977
- Precision ± 1.0°C
- Resolution 0.1°C in range 0.5°C .. 85.0°C / 0.2°C in range -9.9°C .. 0.5°C
- Contact rating 3 x 5(1)A 250V SPST
- Protection rating IP 54
- Overvoltage category II
- Pollution degree 2
- Tracking Index (PTI) 175
- Class of protection againstelectric shock II
- Rated inpulse voltage 2500V
- Number of manual cycles 1.000
- Number of automatic cycles 100.000
- EMC test voltage 230V 50Hz
- EMC test current 15 mA
- Distances tolerances fault mode ‘short’ exclusion ±0,15mm
- Ball pressure test temperature 75°C
- Operating temperature 0°C .. +40°C
- Storage temperature -10°C .. +50°C
- Humidity limits 10% .. 90% RH non-condensing