IFM DL0203 is an evaluation unit designed for two-point level control. It can receive signals from two level sensors and control a pump or other actuator. The unit is suitable for applications such as tank filling, draining and running-dry protection. Its relay output provides a practical interface for controlling external equipment. IFM describes it as a two-point control evaluation unit.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The DL0203 uses two sensor signals to determine the operating state of a tank or vessel. One sensor can represent the minimum level while the second represents the maximum level. The output changes according to the sensor conditions. This allows the unit to control pumps and maintain a defined liquid-level range. The two-point control approach helps prevent unnecessary switching.
A switch-on delay can be used to suppress short-term fluctuations around the sensor switching point. This is useful where liquid movement or waves could create unstable sensor signals. The relay changeover contact provides a practical control interface. The unit can therefore be used for automatic pump control. It is suitable for industrial tanks and process systems.
The unit is designed for control-panel installation. Its LED indicators provide information about power, inputs and output status. The compact evaluation design simplifies integration with compatible level sensors. It can be used for new control panels and equipment upgrades. Installation should follow the manufacturer's wiring and electrical requirements.
Two-point level control
Level monitoring
Pump control
Minimum/maximum level detection
Switch-on delay
Relay output
PNP sensor inputs
Short-circuit protection
Overload protection
LED status indication
Industrial control-panel design
Automatic level management
Water tanks
Storage tanks
Pump control
Process vessels
Liquid-level automation
Running-dry protection
Tank filling
Tank draining
Overflow control
Industrial process systems
| Parameter | Details |
|---|---|
| Model | DL0203 |
| Product type | Level evaluation unit |
| Control principle | Two-point control |
| Sensor inputs | 2 × PNP |
| Output | Relay |
| Relay type | Changeover contact |
| Relay rating | 4 A |
| Auxiliary sensor supply | 18.5–30 V DC typical |
| Sensor current | ≤100 mA |
| Supply voltage | 110–240 VAC / 24 VDC |
| Input frequency | 50–60 Hz |
| Switch-on delay | Yes |
| Damping function | Yes |
| Short-circuit protection | Yes |
| Overload protection | Yes |
| Ambient temperature | -25 to 60°C |
| Storage temperature | -25 to 70°C |
| Housing protection | IP20 |
| Terminal protection | IP20 |
| Power LED | Green |
| Input LEDs | 2 × yellow |
| Output LED | Green |
| Connection | 4-pole connector |
| Mounting | Control cabinet |
| Application | Tank/pump control |
| Manufacturer | IFM |
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