Level probe LGC2
- 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
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Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.
Download the complete datasheet as a PDF:
Datasheet excerpt: Technical data of LGC2
| General specifications | ||
|---|---|---|
| Measuring method | Level control with ceramic measuring cell (dry measuring cell). The pressure acts directly on the rugged ceramic membrane of the device and causes it to move by about max. 0.005 mm. The effects of air pressure on the liquid surface are transferred via a pressure compensating tube through the extension cable to the rear of the ceramic membrane and compensated. Pressure-dependent changes in capacitance caused by membrane movement are measured at the electrodes of the ceramic carrier. The electronics convert the movement into a pressure-proportional signal which is linear to the medium level. |
|
| Equipment architecture | As standard, the complete measuring system consists of a level probe and a transmitter power supply unit with a supply voltage of 10.5 to 30 V DC. | |
| Construction type | device with rod probe | |
| Series | LGC2 | |
| Supply | ||
| Rated voltage | level probe and Pt100 (optional): - 10.5 ... 35 V DC (non-hazardous area) - 10.5 ... 30 V DC (hazardous area) temperature head transmitter (optional): 8 ... 35 V DC |
|
| Current consumption | level probe and Pt100 (optional): max. ≤ 23 mA, min. ≥ 3.6 mA temperature head transmitter (optional): max. ≤ 25 mA, min. ≥ 3.5 mA |
|
| Power consumption | level probe and Pt100 (optional): - ≤ 0.805 W at 35 V DC (non-hazardous area) - ≤ 0.690 W at 30 V DC (hazardous area) temperature head transmitter (optional): ≤ 0.875 W at 35 V DC |
|
| 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. | |
| Residual ripple | level probe and Pt100 (optional): No impact on the 4 to 20 mA signal up to ±5 % residual ripple within the permitted voltage range. temperature head transmitter (optional): Uss ≥ 5 V at U ≥ 13 V, fmax. = 1 kHz |
|
| Electrical specifications | ||
| Surge protection | level probe and Pt100 (optional): - integrated overvoltage protection acc. to EN 61000-4-5 (500 V symmetrical/1000 V asymmetrical) - overvoltage protection ≥ 1.0 kV, external if necessary temperature head transmitter (optional): provide overvoltage protection, externally if necessary |
|
| Input | ||
| Input signal | level probe: change in capacitance Pt100 (optional): change in resistance temperature head transmitter (optional): Pt100 resistance signal, 4-wire |
|
| Measured variable | level probe: hydrostatic pressure of a liquid Pt100 (optional): temperature temperature head transmitter (optional): temperature |
|
| Measuring 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 °C (+14 ... +158 °F) |
|
| Output | ||
| Load | level probe and Pt100 (optional): RLmax ≤ (U - 10.5 V)/0.023 A - 2 x 0.09 Ω/m x l - Radd temperature head transmitter (optional): RLmax ≤ (U - 8 V)/0.025 A - Radd - RLmax = max. load resistance [Ω] - Radd = additional resistances such as resistance of evaluating device and/or display instrument, line resistance [Ω] - U = supply voltage [V] |
|
| 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 |
|
| Signal range | 3.8 ... 20.5 mA | |
| Directive conformity | ||
| Electromagnetic compatibility | ||
| Directive 2014/30/EU | EN 61326-1:2013 , EN 61326-2-3:2013 | |
| Low voltage | ||
| Directive 2014/35/EU | EN 61010-1:2010 | |
| Conformity | ||
| Degree of protection | IEC 60529:2001 | |
| Measurement accuracy | ||
| Resolution | current output: 1 µA | |
| Reference operating conditions | level probe and Pt100 (optional): acc. to IEC 60770, Tamb = constant in the range: +21 ... +33 °C (+70 ... +91 °F) temperature head transmitter (optional): calibration temperature 23 °C (+73 °F) ± 5 K |
|
| Accuracy | level probe and Pt100 (optional): The reference accuracy comprises the non-linearity after limit point configuration, hysteresis and non-reproducibility in accordance IEC 60770. - standard version ±0.2 % - platinum version ±0.1 % temperature head transmitter (optional): ± 0.2 K, with Pt100: max. ± 0.9 K |
|
| Long-term drift | level probe and Pt100 (optional): - ≤ 0.1 % of URL/year - ≤ 0.25 % of URL/5 years temperature head transmitter (optional): ≤ 0.1 K per year |
|
| Influence of medium temperature | thermal change in the zero output and the output span: - 0 ... +30 °C (+32 ... +86 °F): < (0.15 + 0.15 x TD) % of set span - -10 ... +70 °C (+14 ... +158 °F): < (0.4 + 0.4 x TD) % of set span temperature coefficient (TK) of the zero output and the output span: -10 ... +70 °C (+14 ... +158 °F): 0.1 %/10 K of URL |
|
| Warm-up time | level probe: < 6 s Pt100 (optional): 20 m temperature head transmitter (optional): 4 s |
|
| Response time | level probe: 400 ms (T90 time), 500 ms (T99 time) Pt100 (optional): 160 s (T90 time), 300 s (T99 time) |
|
| Operating conditions | ||
| Installation conditions | ||
| Installation position | vertical from above | |
| Process conditions | ||
| Medium temperature | level probe and Pt100 (optional): - Ø22 mm and Ø42 mm: -10 ... +70 °C (+14 ... +158 °F) - Ø29 mm: 0 ... +50 °C (+32 ... +122 °F) temperature head transmitter (optional): -40 ... +85 °C (-40 ... +185 °F) (= ambient temperature), install temperature head transmitter outside the medium. |
|
| Medium temperature limits | level probe and Pt100 (optional): - Ø22 mm and Ø42 mm: -20 ... +70 °C (-4 ... +158 °F) - Ø29 mm: 0 ... +50 °C (+32 ... +122 °F) |
|
| Ambient conditions | ||
| Ambient temperature | level probe and Pt100 (optional): - Ø22 mm and Ø42 mm: -10 ... +70 °C (+14 ... +158 °F) (= medium temperature) - Ø29 mm: 0 ... +50 °C (+32 ... +122 °F) (= medium temperature) temperature head transmitter (optional): -40 ... +85 °C (-40 ... +185 °F) |
|
| Storage temperature | level probe and Pt100 (optional): -40 ... +80 °C (-40 ... +176 °F) temperature head transmitter (optional): -40 ... +85 °C (-40 ... +185 °F) |
|
| Mechanical specifications | ||
| Degree of protection | level probe and Pt100 (optional): IP68, permanently hermetically sealed, optional terminal box IP66/IP67 temperature head transmitter (optional): IP00, moisture condensation permissible, when mounted in the optional terminal box IP66/IP67 |
|
| Connection | 3 terminals in terminal box (accessory) as standard 4 terminals in terminal block (accessory), conductor cross section 0.08 ... 2.5 mm2 |
|
| Material | level probe: 1.4435/316L process ceramic: Al2O3 (aluminium oxide ceramic) seal (internal): EPDM or Viton protection cap: POM or PFA terminal box: PC (polycarbonate) temperature head transmitter: housing PC (polycarbonate) probe connection insulation (extension cable): PE-LD (low-density polyethylene) or FEP (fluorinated ethylene propylene) pressure compensation tube: PA |
|
| 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 ± 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 Ø2.5 mm, internal diameter Ø1.5 mm |
|
| Mass | level probe Ø22 mm: 344 g level probe Ø42 mm: 1376 g level probe Ø29 mm: 394 g probe connection (extension cable) PE: 52 g/m probe connection (extension cable) FEP: 108 g/m suspension clamp: 170 g cable mounting screw G1-1/2: 770 g cable mounting screw N1-1/2: 724 g terminal box: 235 g temperature head transmitter: 40 g additional weight: 300 g testing adapter: 39 g |
|
| Mechanical load | probe connection (extension cable): - minimum bending radius: 120 mm - tensile strength: max. 950 N - cable extraction force: ≥ 400 N - PE: for use in drinking water - UV-resistant - cable resistance per wire: ≤ 0.09 Ω/m |
|
| Dimensions | level probe Ø22 mm: Ø22 x 259 mm level probe Ø42 mm: Ø42 x 247 mm level probe Ø29 mm: Ø29 x 268 mm probe connection (extension cable): Ø8 mm suspension clamp: Ø48 x 175 mm cable mounting screw G1-1/2: Ø55 x 71 mm cable mounting screw N1-1/2: Ø38 x 71 mm terminal box: 55 x 80x 120 mm temperature head transmitter: Ø44 x 21 mm additional weight: Ø22 x 110 mm testing adapter: 25 x 25 x 33 mm |
|
| Data for application in connection with hazardous areas | ||
| EU-type examination certificate | DEKRA 17 ATEX 0101 | |
| Marking |  II 2G Ex ia IIC T6...T4 Gb |
|
| Certificate | PF 17 CERT 1658 | |
| Marking | II 3G Ex nA IIC T6...T5 Gc |
|
| Directive conformity | ||
| Directive 2014/34/EU | EN 60079-0:2012+A11:2013 , EN 60079-11:2012 EN 60079-15:2010 | |
| International approvals | ||
| FM approval | ||
| FM certificate | FM 17 US 0106 | |
| Approved for | Class I, Division 1, Groups A - D Class I, Zone 1, AEx ia IIC T6...T4 |
|
| CSA approval | ||
| CSA certificate | 70133438 | |
| Approved for | Class I, Division 1, Groups A - D Ex ia IIC Class I, Zone 1, AEx ia IIC |
|
| IECEx approval | ||
| IECEx certificate | IECEx DEK 17.0045 | |
| IECEx marking | Ex ia IIC T6...T4 Gb | |
| Standards | IEC 60079-0:2011 , IEC 60079-11:2011 | |
| Certificates and approvals | ||
| Drinking water approval | KTW certificate and NSF approval | |
| General information | ||
| Supplementary documentation | technical information (TI) manuals, brief instructions (BA, KA) instruction manuals (SI) control drawings (ZD) |
|
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. | |
| Accessories | ||
| Designation | - 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 |
|
Classifications
| System | Classcode |
|---|---|
| ECLASS 13.0 | 27200516 |
| ECLASS 12.0 | 27200516 |
| ECLASS 11.0 | 27200516 |
| ECLASS 10.0.1 | 27200516 |
| ECLASS 9.0 | 27200516 |
| ECLASS 8.0 | 27200516 |
| ECLASS 5.1 | 27200516 |
| ETIM 9.0 | EC001447 |
| ETIM 8.0 | EC001447 |
| ETIM 7.0 | EC001447 |
| ETIM 6.0 | EC001447 |
| ETIM 5.0 | EC001447 |
| UNSPSC 12.1 | 41111950 |
Details: LGC2
Function
The level probe is a hydrostatic pressure sensor for measuring the level. One outstanding feature of these device is its mechanical and electrical durability. The embedded electronics, a heavy-duty conical cable seal and a 2-filter system guarantee a perfect seal resistant to any climatic conditions.
Highly accurate ceramic measuring cell with long-term stability guarantee reliable and secure filling level measurement.
The device is offered in three variants:
-
Device with a stainless steel housing, external diameter of 22 mm (0.87 inch):
This version is excellently suited to drinking water applications and for use in bore holes and wells with small diameters
-
Device with a stainless steel housing, external diameter of 42 mm (1.65 inch):
Heavy-duty version and easy to clean thanks to flush-mounted process isolating diaphragm, ideally suited to wastewater and wastewater treatment plants
-
Device with plastic insulation, external diameter of 29 mm (1.14 inch):
Robust version for use in salt water and excellently suited to applications on ships (e. g. ballast water tanks)
With extensive measurement accessories, like display, power supply and evaluation device, solutions for all typical applications in fresh water and wastewater are guaranteed.
Product Documentation: LGC2
| Product information | Language | File Type | File Size |
|---|---|---|---|
| TI00431O, Technical information LGC2 | ENG | 1734 KB | |
| Brief Instructions | |||
| KA01244O, Brief instructions LGC2 | ENG | 1648 KB | |
| Safety and Security Documentation | |||
| SD00289O, NSF potable water approval LGC | ENG | 454 KB | |
| SD00319O, KTW potable water approval LGC2 | ENG | 401 KB | |
| SI00454O, Instruction manual LGC2 | ENG | 798 KB | |
| SI00455O, Instruction manual LGC2 | ENG | 604 KB | |
| SI00485O, Instruction manual LGC2 | ENG | 586 KB | |
| Manuals | |||
| BA01605O, Manual LGC2 | ENG | 1988 KB | |
Approvals: LGC2
| Certificates | Certificate No. | Language | File Type | File Size |
|---|---|---|---|---|
| Canada, USA CSA | CoC 70133438 | ALL | 63 KB | |
| DEKRA IECEx Certificate of Conformity Ex ia | IECEx DEK 17.0045 | ALL | LINK | --- |
| DEKRA IECEx Certificate of Conformity Ex ia | IECEx DEK 17.0045 | ALL | LINK | --- |
| Europe DEKRA ATEX II 2 G ATEX Category 2 G Ex ia | Dekra 17 ATEX 0101 | ALL | 1775 KB | |
| Europe DEKRA ATEX II 2 G ATEX Category 2 G Ex ia | DEKRA 17ATEX0101 | ALL | 767 KB | |
| Europe Pepperl+Fuchs II 3 G Declaration of Conformity | PF 17 CERT 1658 X | ALL | 175 KB | |
| NSF International | NSF/ANSI 61 Listing | ALL | LINK | --- |
| USA FM | FM 17 US 0106 | ALL | 212 KB | |
| Control Drawings | ||||
| ZD00231O, Control Drawing FM LGC2 | ENG | 85 KB | ||
| ZD00232O, Control Drawing CSA LGC2, #298582 (FMX21) | ENG | 98 KB | ||
| Declaration of Conformity | ||||
| EU Declaration of Conformity (P+F) / EU-Konformitätserklärung (P+F) | DOC-3842C | ALL | 180 KB | |
| Contamination Declaration | ||||
| Contamination declaration / Kontaminationserklärung | ALL | 137 KB | ||
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Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, OH 44087
USA
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sales@us.pepperl-fuchs.com
+1 330 425-3555
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Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.