Serviceline Industrial Sensors
Serviceline Explosion Protection

Pressure Transmitter LHCS-51

  • Device for hydrostatic pressure measurement in liquids or paste-like media
  • Rope version
  • Modular probe program to ensure optimum process adaptation
  • Temperature range up to 85 °C (185 °F)
  • Pressure range up to 10 bar (150 psi)
  • Easy commissioning without the need for an operating tool
  • Configurable by PACTware
  • Up to SIL 2 acc. to IEC 61508

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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  LHCS-51

Rated voltageversions for safe area:
11.5 ... 35 V DC, HART, 2-wire
9 ... 32 V DC, PROFIBUS PA
version for hazardous area see safety information (SI)
Measured variablehydrostatic pressure
Measurement range0.1 ... 10 bar
max. turn down: 100:1
Output signal4 ... 20 mA with superimposed digital communication protocol HART 6.0, 2-wire
digital communication signal PROFIBUS PA (Profile 3.02)
Communication4 ... 20 mA HART (standard)
PROFIBUS PA (option)
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2006 , EN 61326-2-3:2006 , EN 61326-2-5:2006
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Degree of protectionIEC 60529:2001
Measurement accuracy
Accuracyreference accuracy: 0.2 % (standard), 0.1 % (platinum)
The reference accuracy comprises the non-linearity according to limit point setting, hysteresis and non-reproducibility acc. to IEC 60770. The data refer to the calibrated span.
Long-term driftup to 0.05 % of upper range limit (URL)/year
up to 0.125 % of upper range limit (URL)/5 years
Operating conditions
Process conditions
Medium temperaturePE cable: -10 ... 70 °C (14 ... 158 °F)
FEP cable: -10 ... 80 °C (-14 ... 176 °F)
Ambient conditions
Ambient temperaturePE cable: -40 ... 70 °C (-40 ... 158 °F)
FEP cable: -40 ... 80 °C (-40 ... 176 °F)
with display -20 ... 70 °C (-4 ... 158 °F)
Storage temperaturePE cable: -40 ... 70 °C (-40 ... 158 °F)
FEP cable: -40 ... 80 °C (-40 ... 176 °F)
Mechanical specifications
Degree of protectionIP66, NEMA 4X
IP68, NEMA 6P (24 hours in water 1.83 m (6 ft) deep)
IP69K (with separate housing and FEP cable)
Connectiongland M20
thread M20, G1/2, NPT1/2
device plug M12
HAN7D Harting connector, angled
valve connector acc. ISO 4400, cable 5 m
Materialprocess connections: AISI 316L (1.4435 or 1.4404), Alloy C276 (2.4819)
- die-cast aluminum with protective powder-coating on polyester base, housing F31
- stainless steel AISI 316L (1.4404), housing F15
rope: PE cable or FEP cable
process isolating diaphragm: Alloy C276 (2.4819), Rhodium Gold Alloy C276, Platinum Gold Alloy C276
sealing measuring cell: welded measuring cell or FKM Viton, EPDM, Kalrez
Process connectionthreads ISO 228: G1/2, threads ANSI: NPT1/2
flanges EN 1092-1: DN 40 ... DN 100, flanges ANSI 16.5: 2 ... 4 in, flanges JIS B2220
Data for application in connection with hazardous areas
EU-type examination certificatesee instruction manuals (SI)
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010 , EN 60079-31:2009
International approvals
FM approvalsee instruction manuals (SI)
CSA approvalsee instruction manuals (SI)
IECEx approvalsee instruction manuals (SI)
Certificates and approvals
Drinking water approvalNSF61 approval
Overspill protectionsee approval (ZE)
Marine approvalGerman Lloyd (GL)
General information
Supplementary documentationtechnical information (TI)
manuals, brief instructions (BA, KA)
instruction manuals (SI)
control drawings (ZD)
approval (ZE)
Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see
Designationsee technical information (TI)

Documents: LHCS-51

ManualsLanguageFile TypeFile Size
BA382O, Manual LHC-M51, PPC-M51 4 mA ... 20 mA HARTENGPDF2974 KB
Functional Safety ManualENGPDF1790 KB
BA382O, Handbuch LHC-M51, PPC-M51 4 mA ... 20 mA HARTGERPDF2938 KB
Handbuch Funktionale SicherheitGERPDF1811 KB
Instruction manuals
Instruction manualENGPDF1273 KB
SI00477O, Instruction manual LHCR-51, LHCS-51ENGPDF850 KB
SI00494O, Instruction manual LHCR-51, LHCS-51ENGPDF858 KB
SI00560O, Instruction manual CSA LHCR-51, LHCS-51 PROFIBUS PAENGPDF178 KB
SI00566O, Instruction manual FM LHCR-51, LHCS-51 PROFIBUS PAENGPDF180 KB
SI478O, Instruction manual LHCR-51, LHCS-51ENGPDF498 KB
SI493O, Instruction manual LHCR-51, LHCS-51ENGPDF496 KB
ZD00236O, Control drawing FM LHCR-51, LHCS-51 4 ... 20 mA HARTENGPDF167 KB
ZD00239O, Control drawing CSA LHCR-51, LHCS-51 4 ... 20 mA HARTENGPDF164 KB
Manuel d'instructionsFRAPDF1273 KB
SI00477O, Instruction manual LHCR-51, LHCS-51FRAPDF848 KB
SI00494O, Instruction manual LHCR-51, LHCS-51FRAPDF857 KB
BetriebsanleitungGERPDF1273 KB
SI00477O, Betriebsanleitung LHCR-51, LHCS-51GERPDF852 KB
SI00494O, Betriebsanleitung LHCR-51, LHCS-51GERPDF860 KB
ZE00275O, Zulassung WHG Z-65.11-543, LHCR-51, LHCS-51GERPDF1131 KB
Short instructions, safety information
KA1033O, brief instructions LHCR-51, LHCS-51 4 mA ... 20 mA HARTENGPDF1701 KB
KA1034O, brief instructions LHCR-51, LHCS-51 PROFIBUS PAENGPDF5195 KB
KA1033O, Kurzanleitung LHCR-51, LHCS-51 4 mA ... 20 mA HARTGERPDF1693 KB
KA1034O, Kurzanleitung LHCR-51, LHCS-51 PROFIBUS PAGERPDF5167 KB
Technical information
Declaration of Contamination / Erklärung zur KontaminationALLPDF137 KB
TI00437O, Technical Information LHCR, LHCSENGPDF3317 KB
TI00437O, Technische Information LHCR, LHCSGERPDF3088 KB

Associated Products: LHCS-51

For level devices, Frame application, like e. g. PACTware, must be installed separatelypa

Function: LHCS-51

The device is used for level and pressure measurement in liquids or paste-like media.

The device has a hermetically sealed hydrostatic measuring cell.

Due to its weight, a liquid column creates hydrostatic pressure. This pressure is measured by the hydrostatic measuring cell. The hydrostatic measuring cell works on the principle of the gauge pressure sensor. Thanks to the hermetic sealing of the measuring element, the hydrostatic measuring cell is absolutely insensitive to condensate/condensation and aggressive gases. The pressure applied is transferred from the process isolating diaphragm to the measuring element by means of an oil without any loss in pressure.

The data is transmitted to the control via analog signal, HART protocol or PROFIBUS PA.

The device is easily configured by the use of keypad or with the PACTware configuration software.

The device is designed modular and offers a variety of process connections, a replaceable display and a universal electronics.

Functional Safety Hub from Pepperl+Fuchs

Several hundred products with a SIL/PL assessment, free tools, and brochures in one place: the "Functional Safety Hub" is your starting point when you have to implement safety functions.