X112 Gauge Head Position Sensor

ATEX & IECEx approved intrinsically safe sensors for hazardous gas environments

Linear

This sensor at a glance

Available in any measurement range from 0-5mm to 0-50mm

Longer operating life than a potentiometer

Fast delivery options available

Body Diameter: 19mm

Sensor Mounting: 1/2" UNF Thread

Spring loaded plunger

Sealed to IP67

Independent Linearity:
< ±0.25%
< ±0.1% option available

Resolution: Infinite

Temperature range: -40° to +80°

The intrinsically safe X112 is ATEX and IECEx approved for use in potentially explosive gas/vapour atmospheres. It is designed for gauge head positioning in industrial and scientific applications and is ideal for OEMs seeking good sensor performance for arduous applications in hazardous areas. The X112, like all Positek sensors, 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 0-50mm and with full EMC protection built in.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor is very robust, the body and plunger being made of stainless steel for long service life and environmental resistance.

The plunger is spring loaded with a domed end. The X112 is easy to install with a long ½ inch UNF mounting thread and is supplied with two lock nuts for positioning. Environmental sealing is to IP67.

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.

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
19mm
Body Length
See drawing
Mounting Thread Length
59mm
Spring Force
1.5 - 4.5N (Approximately)
Travel
Any stroke from 0-5mm to 0-50mm (e.g. 19mm)
Independent Linearity
<±0.25% 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)


Temperature Limits

Operating
-40 to +80°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
IP67
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 0-50mm in increments of 1mm. For example, if your application requires 3/4" (19 mm) measurement, then Positek will manufacture the sensor specifically for this length. The mechanical length and calibration will be set up for 19 mm.


Connector/Cable Options

Option
Option Code
Connector - Axial IP67, M12 - 4 pin
J
Connector - Radial IP67, M12 - 4 pinK
Cable with PG9 gland Axial, IP67
L (3 core cable)
LQ (5 core cable)
(click for more information)
Cable with boot Radial IP67
I (3 core cable)
IQ (5 core cable)
(click for more information)
Cable length - The standard length of cable supplied with a Positek position sensor is 50cm although you can specify any length you require up to a maximum of 15,000cm
Specified in cm after the L/LQ or I/IQ e.g. L200 for 200cm 3 core cable from axial cable gland


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


Click Here for approved Galvanic Isolation Amplifier Options


Galvanic Isolation Amplifier
Click for PDF
Outline
Click for PDF
Request AutoCAD Drawing
Datasheet
Click for PDF
Installation Sheet
Click for PDF


image missing