Submersible hydrostatic level meter
- Submersible hydrostatic level meter capable of continuous level measurement of drainage from 1 to 100 m
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Ideal for continuous level measurement of slightly dirty water in a long range of 1 to 100 m. Measures the continuous level of of sludge water, drainage, etc. (slightly dirty water). Equipped with temperature compensation function and surge protection circuit..
■Two types, current output type and voltage output type, are available.
There are two models, one for normal water (clean water such as tap water) and the other for sludge, drainage (slightly dirty water). HLM-25C is for sludge water and drainage.
Features, keys |Usage, use examples |Standard specifications
Features, keys
- Can measurement continuous level measurement of water from 1 to 100 m
Sludge water, drainage, etc. (slightly dirty water) ⇒ HLM-25C type* Applications: Sewage such as non-pressure tanks, rivers, reservoirs, wastewater, boreholes, etc. * Normal water ( Clean water such as tap water) ⇒ HLM-25S type - No settings or adjustments required
No other settings or adjustments are required just by wiring. Easy to handle such as installation and maintenance. - With temperature correction function
Equipped with an accuracy correction function due to changes in water temperature. - With surge protection circuit
Protects against abnormally high voltage and abnormally large current caused by voltage polarity reversal and lightning.
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When the liquid density is constant, the pressure at the tip of the sensor is proportional to the water level. A signal is output from the relative pressure between this pressure and atmospheric pressure. |
Usages, use examples
- Sewage such as non-pressure tanks, rivers, reservoirs, wastewater, boreholes, etc.
Standard specifications
| Model name | HLM-25C-I(Current output type) | HLM-25C-U(Voltage output type) |
|---|---|---|
| Measurement range | 1 to 100m (specified at the time of ordering) | |
| Power source required | 12 to 34V | 16 to 34V |
| Current output | 4 to 20mA DC (maximum load 500Ω *1) | |
| Power consumption (When no load) | 4mA less than | Maximun 8mA |
| Allowable pressure load | 1.5 x measurement range | |
| Accuracy *2 | 0.4% F.S. | |
| Long-term stability | 0.3% per year | |
| Temperature error *2(0 to + 50 degree) | Max.0.04% per degree | |
| Operating temperature | 0 to + 50 degree | |
| Operating ambient temperature | -20 to + 70 degree | |
| Protection class | IP68 | |
| Materials | Probe: SUS316L, Membrane: 96% AluminaSensor protection cap: HDPE, Cable coating: PE, Cable gland: Silicon | |
| Weight | Sensor: 180g, Cable: 60g per m | |
*1: The maximum load resistance of 500Ω in the current output specifications is the value when the power supply voltage is 24V.
*2: This accuracy and temperature error may vary depending on the object to be measured and the usage environment.
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