SITRANS LH100 Transmitter

SITRANS LH100 Transmitter

  • Accurate measurements Only a small error in measurements (0.3%)
  • Compact design The SITRANS LH100 Transmitter is 4.58cm by 0.92cm
  • Available for various measuring ranges Can also include explosion protection as an option
  • Temperature-compensated Allows use in a wide range of temperatures
Product Options

Overview

The SITRANS LH100 Pressure Transmitter is a submersible sensor for measurement of hydrostatic level. It converts level-proportional hydrostatic pressure into a standardized signal.

The LH100 measures liquid levels in tanks, containers, channels and dams, and is temperature-compensated for use in a wide range of temperatures.

It features a compact design, as well as a built-in ceramic sensor which is equipped with a Wheatstone resistance bridge, and an electronic circuit fitted in a stainless-steel housing. Additional to this there is a connecting cable which contains a vent pipe to prevent condensation build-up.

Additional available accessories:

  • Junction box
  • Cable hanger

Manufactured by: Siemens-Milltronics
Model: SITRANS LH100 Transmitter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance

Applications

Water Supply
Waste water supply
Shipbuilding
Use in unpressurized or open vessels and wells

Specification

Mode of operation
Measuring principle piezo-resistive
Input
Measured variable Hydrostatic level
Measuring range Max. permissible operating pressure

• 0 ... 3 mH2O (0 ... 9 ftH2O)

• 0 ... 4 mH2O (0 ... 12 ftH2O)

• 0 ... 5 mH2O (0 ... 15 ftH2O)

• 0 ... 6 mH2O (0 ... 18 ftH2O)

• 0 ... 10 mH2O (0 ... 30 ftH2O)

• 0 ... 20 mH2O (0 ... 60 ftH2O)

• 0 ... 0.3 bar

• 0 ... 0.4 bar

• 0 ... 0.5 bar

• 0 ... 0.6 bar

• 0 ... 1 bar

• 0 ... 2 bar

• 1.5 bar (21.8 psi) (corresponds to 15 mH2O (45 ftH2O))

• 1.5 bar (21.8 psi) (corresponds to 15 mH2O (45 ftH2O))

• 1.5 bar (21.8 psi) (corresponds to 15 mH2O (45 ftH2O))

• 1.5 bar (21.8 psi) (corresponds to 15 mH2O (45 ftH2O))

• 3.0 bar (43.5 psi) (corresponds to 30 mH2O (90 ftH2O))

• 5.0 bar (72.5 psi) (corresponds to 50 mH2O (150 ftH2O))

• 1.5 bar

• 1.5 bar

• 1.5 bar

• 1.5 bar

• 3.0 bar

• 5.0 bar

Output
Output signal 4 ... 20 mA
Measuring accuracy According to IEC 60770-1
Error in measurement at limit setting including hysteresis and reproducibility 0.3% of full-scale value (typical)
Measuring range

• 0 ... 3 mH 2O

(0 ... 9 ftH2O bzw. 0 ... 0.3 bar)


• For all other measuring ranges

 

0.5 % of full-scale value (typical)

1.0% of full-scale value (maximum)

 

0.3 % of full-scale value (typical)

0.6% of full-scale value (maximum)

Influence of ambient temperature
Measuring range Zero and span

• 3 mH 2O (9 ftH2O or 0.3 bar)

 

• 4 ... 6 mH2O (12 ... 18 ftH2O or 0.4…0.6 bar)


• ? 6 mH 2O ( ? 18 ftH2O or ? 0.6 bar)

0.5 %/10 K of full-scale value

 

0.45 %/10 K of full-scale value

 

0.3 %/10 K of full-scale value

 
Measuring range Zero and span

• 3 mH 2O (9 ftH2O or 0.3 bar)

 

• 4 ... 6 mH2O (12 ... 18 ftH2O or 0.4…0.6 bar)


• ? 6 mH 2O ( ? 18 ftH2O or ? 0.6 bar)

0.4 % of full-scale value/year

 

0.25% of full-scale value/year

 

0.2% of full-scale value/year

Rated conditions
Ambient conditions  

• Process temperature

• Storage temperature

-10 ... +80 °C (14 ... 176 °F)

-40 ... +80 °C (-40 ... +176 °F)

Degree of protection according to IEC 60529 IP68
Design
Weight  

• Pressure transmitter

• Cable; maximum cable length 100 m (330 ft)

? 0.2 kg ( ? 0.44 lb)


0.025 kg/m (? 0.015 lb/ft)

Electrical connection Cable with 3 conductors, vent pipe and integrated humidity filter
Material  

• Seal diaphragm

• Enclosure

• Gasket

Al2O3 ceramic, 96%

Stainless steel, mat. no. 1.4404/316L

FPM (standard)

• Connecting cable

EPDM (optional)

PE-HD (standard)

PE-LD (in the case of versions with EPDM seal, suitable for drinking water)

Auxiliary power
Terminal voltage on pressure transmitter UB

10 ... 33 V DC

10 ... 30 V DC for transmitter with intrinsic safety explosion protection

Certificates and approvals
Drinking water approval (ACS) Applied for
Drinking water approval (WRAS) 1403525
EAC ? TC RU C-DE.??05.?.00732 OC ????? «????»
Underwriters Laboratories (UL) 2014-11-17 - E344532
The transmitter is not subject to the pressure equipment directive (PED 2014/68/EU)  
Explosion protection  

• Intrinsic safety "i"

- Marking

IECEx SEV 14.0003

SEV 14 ATEX 0109

II 1 G Ex ia IIC T4 Ga

Junction box
Application for connecting the transmitter cable
Design
Weight 0.2 kg (0.44 lb)
Electrical connection 2 x 3-way (28 to 18 AWG)
Cable entry 2 x Pg 9
Enclosure material polycarbonate
Vent pipe for atmospheric pressure  
Rated conditions
Degree of protection according to IEC 60529
IP65
Cable hanger
Application for mounting the transmitter
Design  
Weight 0.16 kg (0.35 lb)
Material Galvanized steel, polyamide
   

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