Japan, SENSEZ
SENSEZ HM-200.HM-300 Immersion-type Water Level Sensors

Products Made in Japan
 Manufacturer :SENSEZ
 Model :HM-200.HM-300 (HM-200-02,HM-200-05,HM-200-10,HM-200-20,HM-200-30,HM-200-50,HM-300-02,HM-300-05,HM-300-10,HM-300-20,HM-300-30,HM-300-50)
Ideal for long-term water level observation for rivers, water channels, dams, wells, groundwater, etc.
Features
- Immersion-type
- Pressure-type water level sensor with a stainless steel diaphragm
- Ideal for long-term water level observation for rivers, water channels, dams, wells, groundwater, etc.
- Meter lineup from 2 m to 50 m
- Water level measurement to an accuracy of millimeters possible
- Output signal of 1 to 5 VDC or 4 to 20 mADC from a built-in amplifier circuit
- Built-in arrester
Characteristics
- Pressure-type water level sensor with a stainless steel diaphragm
- Meter lineup from 2 m to 50 m
- Water level measurement to an accuracy of millimeters possible
Specifications
- Accuracy:± 0.3% F.S. or less
- Output signal of 1 to 5 VDC or 4 to 20 mADC from a built-in amplifier circuit
- Overpressure:<HM-200>200% of the rated pressure
 <HM-300>150% of the rated pressure
Use examples and track record
- Level measurement for open tanks
- Water level measurement for underground tanks
- Water level observation for rivers
- Water level observation in wells and boreholes
- Water level observation for dams
- Water level observation for lakes
Industries where our products are widely used
Precision equipment, semiconductors/liquid crystal, machinery, food/drug production, industrial material, government office, university, esearch institution etc.
| Model | Rated pressure | 
| HM-200-02 | 2mH2O | 
| HM-200-05 | 5mH2O | 
| HM-200-10 | 10mH2O | 
| HM-200-20 | 20mH2O | 
| HM-200-30 | 30mH2O | 
| HM-200-50 | 50mH2O | 
| HM-300-02 | 2mH2O | 
| HM-300-05 | 5mH2O | 
| HM-300-10 | 10mH2O | 
| HM-300-20 | 20mH2O | 
| HM-300-30 | 30mH2O | 
| HM-300-50 | 50mH2O | 
| Model | HM-200 | HM-300 | ||||||||||
| -02 | -05 | -10 | -20 | -30 | -50 | -02 | -05 | -10 | -20 | -30 | -50 | |
| Rated pressure | 2mH2O | 5mH2O | 10mH2O | 20mH2O | 30mH2O | 50mH2O | 2mH2O | 5mH2O | 10mH2O | 20mH2O | 30mH2O | 50mH2O | 
| Overpressure | 200% of the rated pressure | 150% of the rated pressure | ||||||||||
| Power supply | 12 to 28VDC | |||||||||||
| Output | 1 to 5VDC | 4 to 20mADC | ||||||||||
| Current consumption | 6mA or less | _ | ||||||||||
| Load resistance | 1k Ωor more | 600 Ω or less (at power of 24 VDC) | ||||||||||
| Accuracy (linearity) | ±0.3% F.S. or less * 2 (±0.2% F.S. or less) | |||||||||||
| Temperature characteristics at zero degrees | ±0.01% F.S. / °C or less (-2 to 30°C) | |||||||||||
| Compensated temperature range | -2 to 30°C | |||||||||||
| Operating temperature range | -10 to 50°C (no freezing allowed) | |||||||||||
| Material | Diaphragm : SUS316L Main unit: SUS316 O-ring: Fluororubber | |||||||||||
| Sealing liquid | Cap: Plastic Shrinkable tube: Polyolefin Silicone oil | |||||||||||
| Cable | 8 polyurethane: 30m (standard) Shield + atmospheric relief pipe 300N (Between the main unit and cable) | |||||||||||
| Tensile strength | 100MQ or more 500VDC | |||||||||||
| Insulation resistance | 500VAC, 1 minute | |||||||||||
| Withstand voltage | Main unit: approx 300g | |||||||||||
| Weight | Cable: approx 65g per meter | |||||||||||
- We also manufacture a water level sensor with a built-in temperature sensor (PT-100).
- We also manufacture high-accuracy pressure sensors (accuracy: ± 0.1% F.S. or less
Dimensions(Units:mm)
Cables / wires
| HM-200 | HM-300 | |
| Red | Power supply + | Power supply + | 
| White | Output | Power supply – | 
| Black | Common | _ | 
| Atmospheric relief pipe | Yes | Yes | 
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