Positek S125 submersible linear position sensor

S125 Submersible Linear Position Sensor

The 350bar S125 is a higher pressure version of the S115 submersible linear sensor with a larger electronics housing and wet mate high pressure connector. The S125 is sealed for continual submersion up to 3500m (350bar 5000psi). The unit is compact, space-efficient and responsive along almost its entire length.

Like all Positek® sensors, the S125 provides a linear output proportional to displacement. Each sensor is supplied with the output calibrated to the travel required by the customer, our standard range covers any measurement range from 0-5mm to 0-800mm. As with all of our packaged sensors full EMC protection is built in.

The sensor is very robust, the body and push rod being made of 316 stainless steel for long service life and environmental resistance.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor is easy to install with mounting options including 316 stainless steel M8 rod eye bearings and 316 stainless body clamps. The push rod can be supplied free or captive, with M8 thread, or an M8 stainless steel rod eye. The S125 also offers a wide range of mechanical and electrical options, environmental sealing is to IP68 350Bar (5000psi).
This sensor is waterproof for submersion to 3500 meters.

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Description

The Positek S125 submersible linear position sensor 350bar is a higher pressure version of the S115 sensor with a larger electronics housing and wet mate high pressure connector. The S125 is sealed for continual submersion up to 3500m (350bar 5000psi). The unit is compact, space-efficient and responsive along almost its entire length.

Like all Positek® sensors, the S125 submersible sensor provides a linear output proportional to displacement. Each sensor is supplied with the output calibrated to the travel required by the customer, our standard range covers any measurement range from 0-5mm to 0-800mm. As with all of our packaged sensors full EMC protection is built in.

The S125 Submersible Linear Position sensor is very robust, the body and push rod being made of 316 stainless steel for long service life and environmental resistance.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The Positek sensor is easy to install with mounting options including 316 stainless steel M8 rod eye bearings and 316 stainless body clamps. The push rod can be supplied free or captive, with M8 thread, or an M8 stainless steel rod eye. The S125 also offers a wide range of mechanical and electrical options, environmental sealing is to IP68 350Bar (5000psi).
This sensor is waterproof for submersion to 3500 meters.

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Positek offers a range of options for its standard sensors. Each sensor is manufactured to suit each customer's preferences. If your requirement is outside the options given below, Positek can modify/ redesign a sensor to suit your specific requirement. Standard options are available as below:

 

Measurement Range

Factory set to any length from 0-5mm to 0-800mm in increments of 1mm. For example, if your application requires 10" (254mm) measurement, then Positek will manufacture the sensor specifically for this angular range. The sensor will measure 10° however will still rotate through 254mm.

 

Electronic Options

Output Signal Supply Input Option Code
Standard    
0.5V to 4.5V DC ratiometric +5V DC nom. ±0.5V A
Buffered    
0.5V-4.5V DC +24V DC nom. +9-28V G
±0.5V DC ±15V DC nom. ±9-28V B
0.5-9.5V DC +24V DC nom. +13-28V C
±10V DC ±15V DC nom. ±13.5-28V D
4-20mA (2 wire) +24V DC nom. +18-28V E
4-20mA (3 wire sink) +24V DC nom. +13-28V F
4-20mA (3 wire source) +24V DC nom. +13-28V H

 

Connector/Cable Options

Option Option Code
Axial micro wet mate bulkhead and mating connector with 50cm flying lead (standard fit)
Mating connector with longer cables available as special.		 J50
Radial micro wet mate bulkhead and mating connector with 50cm flying lead (standard fit)
Mating connector with longer cables available as special.		 K50

 

Mounting Options

Option Option Code
M8 Rod eye on body (only with option "K") N
Body clamps, 1 pair (see drawing) P
Body clamps, 2 pairs (see drawing) P2
M8 rod eye on push rod U

 

Push Rod Options

Option Option Code
Spring loaded (extended) (up to 300m stroke - for longer strokes please contact us) R
Spring loaded (retracted) (up to 300m stroke - for longer strokes please contact us) S
Dome end on push rod (only with option "R") T
Non captive push rod V

 

<+/-0.1% FSO Linearity error (10mm minimum stroke length) Option Code
Z650

Dimensions

Body Diameter 40mm end cap, 35mm body tube
Body Length (Axial version) Measurement Length + 184mm
Body Length (Radial version) Measurement Length + 189mm
Push Rod Extension Measurement Length + 7mm
Push Rod Outside Diameter/td>

12.6mm
Travel Any stroke from 0-5mm to 0-800mm (e.g. 305mm)
Independent Linearity <±0.25% up to 450mm
<±0.50% over 450mm at 20°C
<±0.1% available on request
Temperature Coefficient <±0.01%/°C Gain & <±0.01%FS/°C Offset
Resolution Infinite
Noise

<0.02% FSO
Frequency Response

>10KHz (-3dB);
>300Hz (-3dB); 2 wire 4-20mA

 

Output Signal and Output Load

Output Signal Output Load
0.5 to 4.5 V DC ratiometric 5k Ohms min
0.5 to 4.5 V DC 5k Ohms min
± 5V DC 5k Ohms min
± 10V DC 5k Ohms min
0.5 to 9.5 V DC 5k Ohms min
4 to 20mA (2 wire) 300 Ohms max at 24V
4 to 20mA (3 wire sink) 950 Ohms max at 24V
4 to 20mA (3 wire source) 300 Ohms max at 24V
Supply Current 12 mA Typical 20 mA max (voltage versions)

 

Temperature Limits

Operating -4 to +50°C
Storage -4 to +50°C

 

Other

EMC Susceptibility EN 61000-6-2
EMC Radiated EN 61000-6-3
Vibration IEC 68-2-6: 10g
Shock IEC 68-2-29: 40g
Sealing IP68 350bar, 5000psi, 3500m
Electrical Connections Micro wet mate connector

DATA SHEET

BODY CLAMPS

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