LM7 GENERAL PURPOSE SUBMERSIBLE PRESSURE TRANSMITTER
LM7 GENERAL PURPOSE SUBMERSIBLE PRESSURE TRANSMITTER
DESCRIPTION & FEATURES
- Designed for continuous level measurement in clean water, reservoir and treatment plants
- Rugged stainless steel housing and highly accurate ceramic sensor
- PUR vented cable in various lengths
- Available ranges from Low Pressure up to 300 psi
- ±0.5% accuracy standard, ±0.25% optional
- IP68 rated for full submersion and continous measurement
- CE mark and RoHS compliant
- 5 year warranty
Applications
Appropriate for all level and depth measurement applications including
open tanks, ground water monitoring, sewage and water treatment
facilities
SPECIFICATIONS
DOCUMENTS
DRAWINGS
FAQS
| Parameter | Specification |
|---|---|
| Output Signal |
4…20 mA, 2-wire / Vs = 10-30 Vdc 5…4.5 Vdc, 3-wire / Vs = 10-30 Vdc 0...5 Vdc, 3-wire / Vs = 10-30 Vdc |
| Accuracy | ±0.5% Full Scale Output, ±0.25% FSO optional |
| Load Resistance | RL = (U-10)/0.02(Ω) (4~20mA current output), >20KΩ (voltage output) |
| Long Term Stability | 0.1% Full Scale per year |
| Response Time | 1 ms |
| Storage Temperature | -40 to 85 deg C (-40 to 185 deg F) |
| Media Temperature | 0 to 85 deg C (32 to 185 deg F) |
| Insulation Resistance | 100 MΩ @ 250 VDC |
| Reverse Polarity Protection | Yes |
| Lightning Protection | Yes |
| Electromagnetic Protection | IEC 61000 |
| Enclosure Protection | IP68 for full submersion and continuous measurement |
| Housing | 1Cr18Ni9Ti |
| Wetted Parts | Ceramic sensor with Viton O-ring |
| Long Term Stability | ±0.1% FSO (typically per year) |
| Operation Life | 1 million cycles, minimum |
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