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Submersible pressure sensor type ABS MD 127
Submersible and highly accurate
MD 127 is a sewage water resistant, stainless steel encapsulated, submersible, hydrostatic level sensor of very high accuracy and over pressure capability. It is designed for level measurement in liquids like stormwater and wastewater in pump sumps. When connecting the 2-wire loop powered sensor in series with a DC power supply, the MD 127 gives a 4 to 20 mA output signal which is proportional to the level of the liquid.
Main design features
The output signal can be connected to the mA – input of set point relays, chart recorders, indicating instruments, PLC, pump-controls, etc. The number of devices in series and the length of the cable from sensor to the devices is dependant on the supply voltage.
The ceramic sensing element can withstand very high overpressures without damage.
Key characteristics
Measuring Range |
Max. Overpressure |
Cable Length |
0 - 1.0 mH2O | 4 bar | 10 m |
0 - 2.0 mH2O | 6 bar | 10 m |
0 - 2.0 mH2O | 6 bar | 25 m |
0 - 4.0 mH2O | 6 bar | 10 m |
0 - 4.0 mH2O | 6 bar | 25 m |
0 - 10 mH2O | 10 bar |
15 m |
0 - 10 mH2O | 10 bar | 25 m |
0 - 20 mH2O | 10 bar | 25m |
0 - 40 mH2O | 25 bar | 45 m |
Technical specifications
Description
Cable | PE, shielded |
Housing | Stainless steel 1.4404 |
Sensor | Ceramic AL203 ,gold coated |
Output signal | 4 - 20 mA, 2-wire, fixed to the sensors measuring range |
Accuracy | ≤ ±0.2 % FS @ 25 °C |
Response time | 200 ms |
Supply voltage | 9...30 V DC |
Ambient temperature | -25...80 °C |
Temperature coeff. | ≤ ± 0.02 % FS/K (Zero) |
Long term stability | ≤ ± 0.2 % FS p.a. |
Protection | P 68 |
Weight of sensor | approx. 0.5 kg |
Weight of cable | 0.5 kg / 10 m |
Electrical connection shielded | PE cable with pressure compensation capillary and filter |