X125 Rugged IP68 350bar Submersible Stand Alone Linear Position Sensor
ATEX & IECEx approved intrinsically safe underwater sensor for hazardous gas environments
This sensor at a glance
Available in any measurement range from 0-5mm to 0-800mm
Longer operating life than a potentiometer
Fast delivery options available
Body Diameter: 40mm
Spring loaded pushrod option available
Sealed to IP68 350bar, 3500msw, 5000psi
< ±0.25% up to 450mm
< ±0.5% over 450mm
< ±0.1 % option available
Temperature range: -4 to +50°C
The intrinsically safe X125 sealed to IP68 350bar (5000psi, 3500m), is an ATEX and IECEx gas approved linear sensor . With a strong 12.6mm push rod it is recommended for applications where high pressure sealing is required or where vibration is an issue or there is a need for longer travel sensors are to be mounted horizontally between rod eyes. It remains an affordable, durable, high-accuracy position sensor designed for applications where the sensor requires IP68 sealing up to a pressure of 350Bar. The unit is highly compact and space-efficient, being responsive along almost its entire length. Like all Positek sensors, the X125 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 M8 thread, or an M8 stainless steel rod eye. The X125 also offers a wide range of mechanical and electrical options.
Positek intrinsically safe sensors are designed to be used with a galvanically isolated amplifier . Approved galvanic isolation amplifiers (X005) are available from Positek; there is a choice of 0.5-9.5V or 4-20mA transmission outputs.
The sensor can be installed with a cable length up to 1km between the sensor and the amplifier.
|ATEX/IECEx approval||The sensor is ATEX/IECEx approved to:|
Ex II 1G
Ex ia IIC T4 GA (Ta = -40°C to +80°C).
This designates the sensor as belonging to; Group II: suitable for all areas except mining, Category 1 G: can be used in areas with continuous, long or frequent periods of exposure to hazardous gas (Zone 0). Protection class ia, denotes intrinsically safe for all zones. Apparatus group IIC: suitable for IIA to IIC explosive gas. Temperature class T4: maximum sensor surface temperature under fault conditions 135°C. Ambient temperature range extended to -40°C to 80°C.
Approval only applies to the specified ambient temperature range and atmospheric conditions in the range 0.80 to 1.10 Bar, oxygen <=21%.
|Galvanic Isolation Amplifier|
Intrinsically safe sensors must be used with a galvanically isolated amplifier with safety parameters not exceeding:- Ui: 11.4V, Ii: 0.2A, Pi: 0.51W. Sensor can be installed with a cable length up to 1000m maximum from the amplifier, cable capacitance and inductance can be up to:- Capacitance: 200 nF max, Inductance: 810 μH max.
Approved amplifiers are available from Positek; there is a choice of 0.5-9.5V or 4-20mA transmission outputs.
|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||12.6mm|
|Travel||Any stroke from 0-5mm to 0-800mm (e.g. 305mm)|
<±0.25% up to 450mm
|Temperature Coefficient||<±0.01%/°C Gain & <±0.01%FS/°C Offset |
|Operating||-4 to +50°C|
|Storage||-4 to +50°C|
|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 submersion|
|Electrical Connections||Micro wet mate series|
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:
Factory set to any length from 0-5mm to 0-800mm in increments of 1mm. For example, if your application requires 10" (254 mm) measurement, then Positek will manufacture the sensor specifically for this length. The mechanical length and calibration will be set up for 254 mm.
Axial wet mate bulkhead and mating connector with 50cm flying head (standard fit)
Mating connector with longer cables available as special
Axial wet mate bulkhead and mating connector with 50cm flying head (standard fit)Mating connector with longer cables available as special
|M8 rod eye on body (only with option "K")
|Body clamps, 1 pair (see drawing)
|Body clamps, 1 pair (see drawing)||P2
|M8 rod eye on push rod
Push Rod Options
|Spring loaded (extended) (up to 300mm stroke - for longer stroked please contact Positek)
|Spring loaded (retracted) (up to 300mm stroke - for longer stroked please contact Positek)||S
|Dome end on push rod (only with option "K")
|Non captive push rod
|<+/-0.1% FSO Linearity error (≥10mm and ≤400mm stroke length)||Option Code