This self-monitoring electronic boiler water low level alarm with integrated power failure lock operates on the conductivity principle. Consisting of control unit with test and re-set buttons, angled probe with welding sockets, electrode and electrode test facility. TÜV-tested and suitable as a boiler water low level alarm for a max. operating pressure of 10 bar and a max. operating temperature of 120 °C. Designed for use in heating systems according to DIN EN 12828.According to VdTÜV sheet 'Water Level 100' of 05/2002.
If the water level in the boiler drops below a minimum level, the electrode is no longer submerged. The electronic system de-energizes a relay which switches off the power supply to the burner and activates the alarm lamp. The electrical locking mechanism prevents the burner from restarting automatically.
WMS 3-1 Boiler water low level alarm similar to WMS 2-1, with external power failure locking.
WMS 2-1-2 Boiler water low level alarm similar to WMS 2-1, but with probe R2.
WMS 3-1-2 Boiler water low level alarm similar to WMS 3-1, but with probe R2.
Technical Specifications
Supply voltage: AC 230 V. Relay contact: 1 changeover contact. Contact rating: 230Vac, 2A
Operation indicator: Green LED. Electrode voltage: 12 V max. Temperature range: 0/+55 °C
Dimensions W x H x D: 97 x 163 x 62 mm. Protection: IP42 (EN 60529)
Approvals: TÜV.HWB.04-345 TÜV. HWB.04-348
