15.8 Diameter 4~20mA 1~5V 0~5V 0.5~4.5V Submersible Throw-in Level Transmitter
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15.8 Diameter 4~20mA 1~5V 0~5V 0.5~4.5V Submersible Throw-in Level Transmitter

15.8 diameter, easy to install and use
Submersible throw-in type measurement method, easy to install for level measurement
All welded structure, good sealing performance
Variety of styles, suitable for various industrial applications
Optional output signal 4~20mA, 1~5V, 0~5V, 0.5~4.5V
Full temperature range digital Compensation
  • LT69

  • ORR

  • ORR-LT69-100mH2O

Applications of level transmitter

·liquid level measurement for tank

Introduction of level transmitter

LT69 level transmitter made by ORR’s own pressure sensor core as sensor sensitive element. Level transmitter can be transferred liquid or gas pressure into the various standard analog output signal 4~20mA. 

The water-proof cable connects with housing sealed, with vented tube putting in, the level transmitter could be used in the water or liquid in a long time. Integrated construction and standard output signal could provide easy operation and good automatic control. With 2-wire working, compact size, light weight and easy installation and operation, LT69 level transmitter is widely used for industry field instead of normal 2-wire 4~20mADC analog output transmitter.

Special features of level transmitter

·Wetted parts apply stainless steel ensure excellent corrosion resitance

·18~36VDC wide operating voltage range

·Standard optional analog output signal 4~20mA, 1~5V, 0~5V, 0.5~4.5V

·Diffusion silicon sensor, 0.5% high quality and stability

·Polyurethane material Water-proof cable

·Protection: transmitter: IP68

·With anti- lightning, anti-RF interference

·With reverse polarity protection and limit current protection

Level Transmitter electric specification

Power supply: 24VDC(18~36VDC)

Electric connection: Flying lead (IP68)

Insulation resistance: ≥100MΩ/250VDC


Level Transmitter construction 

Diaphragm: stainless steel 316L

Housing: stainless steel 304

SpecificationsTechnical data

Measuring range

2m  10m    30m   50m  100m  H2O
Overload pressure200%F.S.                              
Burst pressure500%F.S.          
Operational modeGauge
Measuring mediawater, oil
Output signal4~20mA, 1~5V, 0~5V, 0.5~4.5V
Operation voltage24VDC(18~36VDC)
Accuracy±0.5%F.S. (typ.)
Long-term drift(type)<±0.20(typ.)                                                %F.S./Year
Operating temperature range (type)-20~+85                                                                          ℃
Storage temperature range (type)-40~+125                                                                        ℃
Fluid temperature range (type)-10~+70                                                                          ℃
Insulation resistance≥100MΩ/250VDC
Power-on response time

≤1ms (Up to 90%FS)

Vibration resistance 

20g (20~5000HZ)

Shock resistance 


IP protectionIP68

Level Transmitter dimensions:

Level Transmitter-LT69-Dimension

Level Transmitter order guide:

Level Transmitter LT69-order




Product Inquire
ORR Sensor Co., Ltd. 
Total Sensor Solution




  Add : 6# Building, No. 285 Rongxing Road, Shanghai, 201613
   Phone : +86-18917497750
   E-mail : orr@orrsensor.com
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