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The Next Generation compact ultrasonic liquid level transmitters.
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Pilotrek
Non-contact radar level transmitter.
General
PiloTREK being an FMCW (frequency modulated continuous wave) type radar level gauge offers the highest standard of non-contact
level metering technology for liquids and solids without any compromise in the performance with an accuracy also suitable for
Custody transfer measurement.
The four models range from the 2-wire low cost to the 4-wire high precision version. Their horn antenna or wave stick come with a wide variety of materials, while the most different sealings provide the chance of the proper choice for any application.
The FMCW radar uses high frequency wave of 8,5 GHz with a 1 GHz frequency sweep for the measurement. A wave is emitted by the
antenna and received with a time delay depending on the distance of the measured surface The lower frequency of the emitted wave is compared with the frequency generated at the time the reflected wave reaches the antenna. This frequency difference is
transformed via a Fast Fourier Transformation (FFT) into a frequency spectrum from which distance and level is calculated.
 Application
Best suited for measurement of conductive liquids in regularly shaped conductive containers, capacitance level transmitters are also quite effective for measuring non-conductive materials (liquids and free flowing solids) and, through the use of an auxiliary probe, in irregular or non-conductive vessels.
The probe in the vessel must be continuously in contact with the medium to be measured. Erroneous level indications will be given if arching occurs or cavities form in the medium around the probe.
Specifications
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Rod probe CTR |
Light cable probe CTK |
Heavy duty cable probe CTN |
| wetted parts |
Insulated steel or SS316Ti |
| Ambient temperature |
-25°C to +85°C |
| Process temperature |
CT/CN: -25°C to +120°C;
CH/CL: -25°C to +200°C |
-25°C to +80°C |
| Process pressure |
max. 16 bar @ 200°C |
| Output |
4 to 20 mA |
| Capacitance ranges |
200 pF / 1 nF / 5 nF; selectable |
| ZERO adjustabiltiy |
0 to 80 % of measuring range |
| SPAN adjustability |
20 to 100% of measuring range |
| Measuring frequency |
25 kHz |
| Supply voltage |
12 to 30V DC, max 25 mA |
| Nonlinearity |
<0.5% |
| Protection |
IP65 |
| Ex certification |
EEx ia/ib IIB T4, TUV-A Nr.96.C.003X |
Download PDF data sheet (738 kb)
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Pilotrek
Non-contact radar level transmitter
Features
- Non-contact level transmitter for liquids and solids
- Not influenced by dielectric constant, temperature, pressure and density variations
- Accuracy up to +/- 1 mm
- Measuring range up to 100 m
- Tank bottom tracing (TBF) mode for mediums with low dielectric constant
- Flange temperature up to 250 °C
- Medium temperature –60 °C … +600 °C
- Pressure up to 64 bar
- HART, Profibus PA, FF, RS485
- ATEX explosion-proof approvals
Applications
- Liquids, powders, granules with relative dielectric constant e>2
- Chemicals with dense gas layers above the surface
- Viscous or corrosive materials
- High pressure, high temperature or vacuum
Specifications
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Power
supply:
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12-30VDC
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Temperature:
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-25°C to +200°C
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Pressure:
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max. 1.6 bar
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Output:
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4-20 mA
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Process
connection:
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1" or 1 1/2" flanges
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Protection:
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IP65
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Approvals:
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EEx ia/ib IIB T4
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