This manual provides installation, operation, and safety instructions for the Dometic DTM04 Four-level Tank Monitor System, including wiring diagrams and…
The Dometic DTM04 Four-level Tank Monitor System provides electronic monitoring of liquid levels inside a holding tank using three float switches that activate four lights on an indicator panel. The system indicates Empty, Low, Mid, and Full levels, with the Full level indicating the liquid is within 51 mm of the top of the tank. An optional shut-down relay can be connected to prevent overfilling by cutting power to the electric toilet when the tank is full.
The document details the installation process, including panel location selection, wiring connections for 12V or 24V DC systems, and the adjustment of flexible probe stems to fit various tank sizes. It also covers the use of the optional 'Full Tank' shut-down relay and provides specifications for the materials and electrical components.
| Maximum shut-down relay rating | 30 amps |
|---|---|
| Circuit breaker or fuse required | 1 amp |
| Holding tank depth limit | 56 cm (22 in.) |
| Probe cap opening size | 76 mm (3 in.) NPT |
The lights indicate Empty, Low, Mid, and Full levels of the liquid in the holding tank.
The Full level indicates when the liquid level is within 51 mm (2 in.) of the top of the holding tank.