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| 2 wire hydrostatic liquid level transmitter for Industrial applications | |
| The 'Optima' series uses the established measurement principle of pressure sensitive diaphragm and LVDT. Our unparalleled experience in the use of this technology over many thousands of applications results in a level transmitter capable of performing accurately and reliably in the most demanding and arduous duties. Diaphragms are provided in a choice of corrosion resistant alloys and are offered in a number of "nominal" ranges, each engineered for optimum performance on it's measurement span. Diaphragm travel is limited by mechanical design, providing unmatched tolerance to high overload and shock conditions. Production employs TIG fusion technology and Mass Spectrometry analysis to ensure complete integrity of all welded joints. A process of thermal 'ageing' is used for stress relief and to ensure long-term stability in service. Submersible construction is standard and the sensor may be free standing , suspended, clamped or pole mounting within the vessel. For external mounting, any standard flange or thread may be specified. |
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Where the application demands, automatic compensation for both process and ambient temperature fluctuations can be built in. For enhanced reliability and stability, all active electronics are remotely sited in a weatherproof enclosure, which, for ease of adjustment, contains all calibration controls. This electronics module meets current IEC standards for RFI/EMC immunity, and is available certified I.S. for use in hazardous zones. Sensor cables are available with a choice of outer sheathing including a high performance PTFE for high temperature (to 150oC) and aggressive chemical duties. |
| Calibrated spans: | From 0 - 600mm H2O to 0 - 100m H2O | Diaphragms: | Hastelloy |
| Range adjustment: | 3:1 turndown of normal range | Sensor cable: | Heavy duty TPE vented |
| Zero adjustment: | ± 10% of calibrated span | Electronics housing: | IP65 GRP (NEMA 4) with internal RFI screen (IP67 optional) |
| Overload: | Minimum 5X nominal range | Operating temperature: | -25°C to +95°C (option: -80 to 150°C) |
| Nominal ranges: | 1, 2, 4, 8, 16, 32, 50, 100 metres H2O | Minimum survival: | -50°C |
| Signal output: | 4 -20mA DC 2 wire | Electronics op.temp: | -40 to +55°C |
| Power supply: | 12 - 30V DC | Accuracy: | Better than ±0.5% FRO |
| Maximum output load: | 1000 ohms at 30V | Temp. coefficient: | Less than 0.05% per °C shift zero and range |
| Sensor body: | 316 stainless steel | ||
Sample of the fitting options available |
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| F1 | Basic submersible level sensor | F15 . | Welded pole assembly 1 metre of pole included |
| F2 | DN25 PN16 flange mounting | F16 | Running nut connection 3/4" BSP female with NRVU plunger |
| F3 | Tank fixing clamp | F17 | DN40 PN16 flange mounting |
| F4 | Pole adaptor fitting threaded 1/2" BSP female | F18 | DN50 PN16 flange mounting |
| F5 | Threaded process connection 1/2" BSP male | F19 | Tank fixing clamp & Pole adaptor |
| F6 | 1" ANSI 150lb flange mounting to BS1560 | F21 | Body with slip flange location |
| F7 | Threaded process connection 1/2" NPT male | F22 | Threaded process connection 1" BSP female. |
| F8 | Running nut connection 3/4" BSP female | F23 | Threaded adaptor to allow fitting into existing series 200 DN40 flange |
| F9 | Free Standing | F24 | Threaded adaptor to allow fitting into existing series 200 DN50 flange |
| F10 | Free standing with Pole adaptor fitting threaded 1/2" BSP fem | F25 | 2" BSP parallel thread for fixing to a standard 25mm depth socket |
