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Description : Single stage controller for temperature - WM 971
WM 961 controllers have one point of intervention only, are for wall mounting and can be used both for heating and cooling applications. They also have a NTC thermostatic probe input and a relay output for the management of loads. The values measured by the probes are displayed with two digits and a sign. The WM 901/A model has alarm relay output, while the WM 901/B model has a buzzer for the acoustic alarm. These controllers are available in 80x123 size for wallmounting and with 230 Va or 12 Va/c power supplies.
Technical Data : Single stage controller for temperature - WM 971
| Technical Data | |
|---|---|
| Container | plastic resin PC+ABS UL94V–0 |
| Dimensions | 80x123 mm, depth 25 mm |
| Mouting | wall-mounting |
| Usage temperature | -5...55°C |
| Storage temperature | -30...75°C |
| Usage environment humidity | 10...90% RH |
| Storage environment humidity | 10...90% RH |
| Display | 2 digits plus sign, 12.5 mm high |
| Precision | above 0.5% of bottom scale + 1 digit |
| Consumption | 3 VA (115/230 V model), 1.5 VA (12 V model) |
| Resolution | 1°C |
| Connections | screw terminals for <2.5mm² |
| Power supply | 230Vac, 12Vac/cc ± 10%, 50/60Hz |
Schema : Single stage controller for temperature - WM 971
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