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SITRANS LH300 Pressure Transmitter

Easy to Install Optional cable hanger and junction box are available as accessories
IP68 Degree of Protection

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Overview

The SITRANS LH300 pressure transmitter is a submersible sensor for measuring hydrostatic level. It comes in a variety of measurement ranges to suit the application and explosion protection can be added. For easy installation, a cable hanger and junction box are available as accessories.

The LH300 provides reliable readings with a small error in measurement (0.15% typical).

Manufactured by: Siemens-Milltronics
Model: SITRANS LH300 Pressure Transmitter

Services offered for this product

Sales
Rental
Installation
Calibration
Maintenance
IoT Cloud Compatible

Applications

Water/waste water supply
Drinking water facilities
For use in unpressurized/open vessels and wells
Desalination plants
Shipbuilding

Specification

Mode of operation
Measuring principle	piezo-resistive
Input
Measured variable	Hydrostatic level
Measuring range	Max. permissible operating pressure
0 ... 1 mH₂O (0 ... 3 ftH₂O) 0 ... 2 mH₂O (0 ... 6 ftH₂O) 0 ... 3 mH₂O (0 ... 9 ftH₂O) 0 ... 4 mH₂O (0 ... 12 ftH₂O) 0 ... 5 mH₂O (0 ... 15 ftH₂O) ... 6 mH₂O (0 ... 18 ftH₂O) 0 ... 10 mH₂O (0 ... 30 ftH₂O) 0 ... 20 mH₂O (0 ... 60 ftH₂O) 0 ... 40 mH₂O (0 ... 120 ftH₂O) Special measuring ranges Up to 100 mH₂O (300 ftH₂O) Up to 160 mH₂O (480 ftH₂O) Measuring range 0 ... 0.1 bar 0 ... 0.2 bar 0 ... 0.3 bar 0 ... 0.4 bar 0 ... 0.5 bar 0 ... 0.6 bar 0 ... 1 bar 0 ... 2 bar 0 ... 4 bar Special measuring ranges Up to 10 bar Up to 16 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)) 2 bar (29 psi) (corresponds to 20 mH₂O (60 ftH₂O)) 2 bar (29 psi) (corresponds to 20 mH₂O (60 ftH₂O)) bar (29 psi) (corresponds to 20 mH₂O (60 ftH₂O)) 2 bar (29 psi) (corresponds to 20 mH₂O (60 ftH₂O)) 5 bar (72.5 psi) (corresponds to 50 mH₂O (150 ftH₂O)) 10 bar (145 psi) (corresponds to 100 mH₂O (300 ftH₂O)) 20 bar (290 psi) (corresponds to 200 mH₂O (600 ftH₂O)) 20 bar (290 psi) (corresponds to 200 mH₂O (600 ftH₂O))> 24 bar (348 psi) (corresponds to 240 mH₂O (720 ftH₂O)) 1.5 bar 1.5 bar 1.5 bar 2 bar 2 bar 2 bar 5 bar 10 bar 20 bar 20 bar 24 bar
Output
Output signal	4 ... 20 mA
Measuring accuracy	According to IEC 60770-1
Error in measurement at limit setting including hysteresis and reproducibility	≤ 0.15 % of upper range value (typical) ≤ 0.3 % of upper range value (maximum)
Long-term stability	≤ 0.15 % of upper range value/year (zero and span)
Operating conditions
Ambient conditions Process temperature Storage temperature	-10 ... +80 °C (14 ... 176 °F) -20 ... +80 °C (-4 ... +176 °F
Degree of protection according to IEC 60529	IP68
Design
Weight (pressure transmitter)	≈ 0.4 kg ( ≈ 0.88 lb)
Weight (cable)	0.08 kg/m (≈ 0.059 lb/ft)
Maximal freely suspended length	300 m (990 ft)
Electrical connection	Cable with 2 conductors, vent pipe and integrated humidity filters
Material (Seal diaphragm)	Al2O3 ceramic, 99.6 %
Material (Enclosure)	Stainless steel, mat. no. 1.4404/316L and 1.4539/904L (sea water applications) respectively
Material (Gasket)	FPM (standard) EPDM (optional)
Material (Connecting cable)	PE (standard/drinking water applications) FEP (for aggressive media)
Material (Cap)	Stainless steel, PPE or ETFE
Auxiliary Power
Terminal voltage on pressure transmitter U_B	10 ... 33 V DC for transmitter without explosion protection 10 ... 30 V DC for transmitter with intrinsic safety explosion protection
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)	17 ACC NY 055
EAC	TC N RU ?-DE.??02.B.05092
Underwriters Laboratories (UL)	ML File No. E344532, issued 2017-08-17
Shipbuilding approval (LR)	LR_18/20074
Shipbuilding approval (DNV/GL)	TAA00000CE
Shipbuilding approval (BV)	56926/A0 BV
Shipbuilding approval (ABS)	HG1881314_P
Shipbuilding approval (RINA)	ELE067319XG
Pressure equipment directive	The transmitter is not subject to the pressure equipment directive (PED 2014/68/EU)
Explosion protection
ATEX	SEV 16 ATEX 0121
IEC Ex	IEC Ex SEV 16.0003
EAC Ex	TC RU C-DE.AA87.B.00324
Intrinsic safety "i" - Marking	II 1 G Ex ia IIC T4 Ga