Mobrey Hydrostatic Electronic Level Transmitters
The 9700 Series hydrostatic electronic level transmitter range of tank volume transmitters from Mobrey provide the measurement solution where in-tank problems such as foaming, vapour layers and temperature gradients prohibit the use of other instrumentation.
The 9700 Series electronic pressure and level transmitter is designed to perform in the demanding conditions of today's level measurement applications.
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- 4-20mA output signal proportional to level
- Flush mounted ceramic sensor
- Ideal for industrial or marine applications
- Wide range of mounting options
- Low cost installation
- Readouts for control room or plant mounting
- Site adjustable SG compensation
- Intrinsically safe certified
- Unaffected by difficult ullage conditions
- Stable readings under adverse conditions
- Control electronics may be remote mounted
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| Output Signal |
Two-wire, 4–20mA |
| Power Supply |
10 to 30 Vdc |
| Load Resistance |
R=50 x (supply voltage - 10V) Ω |
| Measuring Range |
Up to 200 m / 8 in. to 656 ft H20 when terminated using the 9710/077 vented terminal box |
| Overrange Limit |
5 x range up to a maximum of 600 m / 1968 ft (Water) |
| Span Adjustment |
+10 to +100% of upper range limit (URL) |
| Process Temperature Limits |
–4 to +140 °F / –20 to +60 °C for 9710, 9720, and 9780
–4 to +194 °F / –20 to +90 °C (176 °F/80 °C Ex ia) for 9790 |
| Ambient Temperature Limits |
–4 to +194 °F / –20 to +90 °C (176 °F/80 °C Ex ia) |
| Humidity Limits |
0 to 100% relative humidity (RH) when terminated using the 9710/077 vented terminal box |
| Hazardous Area Certification |
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ATEX II 1 G EEx ia IIB T4 |
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CSA (Canada and USA) | |
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| Accuracy |
±0.1% of calibrated span (includes effects of linearity, hysteresis, and repeatability) |
| Stability |
±0.1% of upper range limit (URL) per 6 months |
| Temperature Effect (Over Ambient Temperature Range) |
±0.015% of upper range limit (URL) per °C / °F |
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| Cable Entry |
Glanding system supplied with required length of vented cable |
| Wetted Parts |
Sensor: |
Ceramic |
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Sensor Housing: |
316 stainless steel, aluminium bronze |
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Seal Rings: |
Fluorocarbon (FPM/FKM), Nitrile |
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Cable |
Polyurethane, Flourinated Ethylyene Polypropylene (FEP) |
| Pole |
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316 stainless steel pole supplied with 316 stainless steel housing option |
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Copper Nickel pole supplied Aluminium Bronze Housing option | |
| Igress Protection |
IP68 / NEMA 6P (200 m / 656 ft Water) |
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Approximate Weight
(Sensor Only) |
1.54 lb (0.7 Kg) |
| Remote Enclosure |
Aluminium alloy IP67 Grey (RAL 7001) 1.5 lb / 0.7 kg |
| Bellows Enclosure |
Polyester IP67 Grey (RAL 7001) 2.6 lb / 1.2 kg |
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| Hazardous Area Certification |
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ATEX II 1 G |
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ATEX II 1 GD (available upon request) |
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Ex ia IIB T4 Intrinsically Safe |
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CSA (Canada and USA) |
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CLI, DIV1, GPS C & D |
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CL II DIV1, GPS E, F & G, CL III |
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Ex ia IIB T4 |
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AEx ia IIB T4 | |
| Marine Approvals |
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Lloyds Register |
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Bureau Veritas |
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American Bureau of Shipping |
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Korean Register |
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Germanisher Lloyd |
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DNV | |
- For use in:
- Service tanks
- Remote reservoirs
- Arduous shipboard duties
- Environmentally aggressive applications
- Avcat tanks
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