Pepperl+Fuchs LGC2
Level probe
- Device for hydrostatic pressure measurement in liquids
- High resistance to overload
- High-precision, robust ceramic measuring cell with long-term stability
- Simultaneous level and temperature measuring by optional integrated Pt100 resistance thermometer
- Measuring ranges: 0 bar ... 0.1 bar to 0 bar ... 20 bar
- Electronics comprising 4 mA ... 20 mA output signal and integrated overvoltage protection
- KTW and NSF drinking water approval
- Overview
- Comments
Response time | level probe: 400 ms (T90 time), 500 ms (T99 time) Pt100 (optional): 160 s (T90 time), 300 s (T99 time) |
Reference operating conditions | level probe and Pt100 (optional): acc. to IEC 60770, Tamb = constant in the range: +21 ... +33 В°C (+70 ... +91 В°F) temperature head transmitter (optional): calibration temperature 23 В°C (+73 В°F) В± 5 K |
Output signal | level probe: 4 ... 20 mA, 2-wire for hydrostatic pressure measured value Pt100 (optional): temperature-dependent resistance value temperature head transmitter (optional): 4 ... 20 mA Analog for temperature measured value, 2-wire |
Connection | 3 terminals in terminal box (accessory) as standard 4 terminals in terminal block (accessory), conductor cross section 0.08 ... 2.5 mm2 |
Optional accessories | Pt100 resistance thermometer suspension clamp cable mounting screw G1-1/2 cable mounting screw N1-1/2 terminal box (IP66/IP67) additional weight testing adapter shortening kit for probe connection HUT temperature head transmitter, 2-wire, 4 ... 20 mA |
Resolution | current output: 1 andmicro;A |
Measurement range | level probe: - predefined pressure measuring ranges in bar, see type code - customer-specific measuring ranges, factory-calibrated Pt100 (optional): temperature measurement from -10 ... 70 В°C (+14 ... +158 В°F) |
Cable | level probe and Pt100 (optional): - commercially available instrument cable - terminals of the terminal box: 0.08 ... 2.5 mm2 temperature head transmitter (optional): - commercially available instrument cable - terminals of the terminal box: 0.08 ... 2.5 mm2 - transmitter connection: max. 1.75 mm2 probe connection (extension cable): - total outer diameter: 8.0 mm В± 0.25 mm - level probe: 3 x 0.2 mm2 and pressure compensation tube with PTFE filter - Pt100 (optional): 7 x 0.2 mm2 and pressure compensation tube with PTFE filter - pressure compensation tube with PTFE filter: external diameter Г to 20 mA signal up to В±5 % residual ripple within the permitted voltage range. temperature head transmitter (optional): Uss 5 V at U 13 V, fmax. = 1 kHz |
Ambient temperature | level probe and Pt100 (optional): - Г accordance IEC 60770. - standard version В±0.2 % - platinum version В±0.1 % temperature head transmitter (optional): В± 0.2 K, with Pt100: max. В± 0.9 K |
Reverse polarity protection | Reverse voltage protection is integrated in the level probe and in the temperature head transmitter changing the polarities has no impact on operation. |
Storage temperature | level probe and Pt100 (optional): -40 ... +80 В°C (-40 ... +176 В°F) temperature head transmitter (optional): -40 ... +85 В°C (-40 ... +185 В°F) |
Construction type | device with rod probe |
Drinking water approval | KTW certificate and NSF approval |
Warm-up time | level probe: < 6 s Pt100 (optional): 20 m temperature head transmitter (optional): 4 s |
Certificate | PF 17 CERT 1658 |
Input signal | level probe: change in capacitance Pt100 (optional): change in resistance temperature head transmitter (optional): Pt100 resistance signal, 4-wire |
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