X120 IP68 350bar Submersible Cylinder Position Sensor

ATEX & IECEx approved intrinsically safe underwater sensor for hazardous gas environments

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: 40mm

Sensor Mounting: M18 or 3/4" UNF thread

Target tube flanges available

Sealed to IP68 350bar, 3500msw, 5000psi
(combined hydraulic and water pressure)

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

Resolution: Infinite

Temperature range: -4°C to +50°C

The 350bar X120  is an ATEX and IECEx approved version of the S120 cylinder sensor. The X120 is sealed for a maximum of 350bar combined hydraulic and water pressure. The unit is compact, space-efficient and responsive along almost its entire length.

Like all Positek sensors, the X120 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 target tube are 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 M18 or 3/4" UNF mounting thread options. The target tube can be supplied plain or with a variety of flanges.


This sensor is waterproof for submersion to 3500 meters (350bar combined water and hydraulic pressure).

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.

Approval only applies to the specified ambient temperature range and atmospheric conditions in the range 0.80 to 1.10 Bar, oxygen <=21%.

Intrinsic Safety

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.

Dimensions

Body Diameter
40mm
Target Tube Outside Diameter
9.45mm
Travel
any stroke from 0-5mm to 0-800mm (e.g. 305mm)
Independent Linearity
<±0.25% up to 450mm at 20°C
<±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


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 (combined hydraulic and water pressure)
Electrical Connections
Micro wet mate 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


Connector/Cable Options

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


Mounting Thread Options

Option
Option Code
M18 Thread
T
3/4" UNF
P


Target Tube Flange Options

Option
Option Code
NoneU
Penny and Giles HLP100V
Temposonics (M4 fixing)W
Parker Hannifin Cylinder VersionX


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

Click Here for approved Galvanic Isolation Amplifier Options

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