S115 Submersible (IP68) Rugged Stand Alone Linear Position Sensor

Position feedback for underwater marine and off-shore applications

Underwater

This sensor at a glance

Available in any measurement angle from 0-5mm to 0-800mm

Longer operating life than a potentiometer

Fast delivery options available

Body Diameter: 35mm

Sensor Mounting: M8 rod eyes, body clamps or M8 threads

Spring loaded pushrod option available

Sealed to IP68 10bar, 100msw, 145psi

(for 350bar sealing see S125)

Independent Linearity:
< ±0.25% up to 450mm
< ±0.5% over 450mm
< ±0.1 % option available

Resolution: Infinite

Temperature range: -40°C to +125°C (depending on electronics version)

The 10bar submersible S115 is a heavy-duty version of the submersible S114 sensor with a stronger push rod and fixings, recommended for applications where vibration is an issue or there is a need for longer travel sensors to be mounted horizontally between rod eyes. It remains an affordable, durable, high-accuracy position sensor designed for applications where the sensor would be completely submerged during normal operation, up to a pressure of 10Bar. The unit is highly compact and space-efficient, being responsive along almost its entire length. Like all Positek sensors, the S115 provides a linear output proportional to displacement. Each sensor is supplied with the output calibrated to the travel required by the customer, from 0-5mm to 0-800mm and with full EMC protection built in.

The sensor is very robust, the body and push rod being made of 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 stainless steel M8 rod eye bearings and body clamps. The push rod can be supplied free or captive, with female M8 thread, or an M8 stainless steel rod eye. The S115 also offers a wide range of mechanical and electrical options, environmental sealing is to IP68 10Bar.

This sensor is waterproof for submersion to 100 meters.

Dimensions

Body Diameter
35mm
Body Length (Axial version)
Measurement Length + 168mm

Body Length (Radial version)
Measurement Length + 189mm
Push Rod Extension
Measurement Length + 7mm
Push Rod Outside Diameter
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
Output Characteristics
See Graph
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
-40 to +125°C (5V input only)
-20 to +85°C
Storage
-40 to +125°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
MTBF
350,000 hrs 40°C Gf
Sealing
IP68 10bar
(for 350bar sealing see S125)
Electrical Connections
Screened cable or integral connector

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

Cable with Axial PG7 gland 10bar
L
Cable with Radial PG7 gland 10bar I
Cable length - The standard length of cable supplied with a Positek position sensor is 50cm although you can specify any length you require.
Specified in cm after the L or I e.g. L200 for 200cm cable from axial cable gland


Mounting Options

Option
Option Code
M8 Rod eye on body (only with option "I")
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 300mm storke - for longer strokes please contact Positek)
R
Spring loaded (Retracted) (up to 300mm storke - for longer strokes please contact Positek)
S
Dome end on push rod (only with option "R")
T
Non captive push rod
V


<+/-0.1% FSO Linearity error (≥10mm and ≤400mm stroke length) Option Code
Z650


image missing