G112 Gauge Head Position Sensor


CSA Approved Intrinsically Safe sensors for Hazardous GAS atmospheres
Available in any travel from 5mm to 50mm.


Our G112 LIPS® (Linear Induction Position Sensor) incorporates electronics system EX06 which is CSA approved for use in potentially explosive gas/vapour atmospheres. The G112 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 G112, 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 5mm to 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 G112 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 (G005) 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.




Specification

Intrinsic Safety

 

CSA approval

CSA approved to; Class I, Zone 0 Ex ia IIC T4 (Ta = -40°C to +80°C) AEx ia IIC T4 (Ta = -40°C to +80°C) Designates the sensor as belonging to; Class I, Zone 0: suitable for all areas except mining, : can be used in areas with continuous, long or frequent periods of exposure to hazardous gas / vapours. Protection class ia IIC, denotes intrinsically safe for Zones 0, 1 & 2 and IIA, IIB and IIC explosive gases. 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

It is imperative Positek® intrinsically safe sensors be used in conjunction with a galvanic barrier to meet the requirements of the product certification. The Positek G005 Galvanic Isolation Amplifier is purpose made for Positek IS sensors making it the perfect choice. Refer to the G005 datasheet for product specification and output configuration options.


The Positek® G005 Galvanic Isolation Amplifier is available with 0.5 - 9.5V or 4 - 20mA transmission output options or reverse outputs of 9.5 - 0.5 volts or 20 - 4 mA.

Sensor Specification

 

Dimensions

 

Body Diameter

19mm

Body Length

205mm excluding thread

Mounting Thread Length

59mm

Spring Force

1.5-4.5N (Approximatly)

Travel

any stroke from 5mm to 50mm (eg 19mm)

Independant Linearity

<±0.25% @ 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

EMC Performance

 

Susceptibility

EN 61000-6-2

Radiated

EN 61000-6-3

 

 

Vibration

IEC 68-2-6: 10g

Shock

IEC 68-2-29: 40 g

MTBF

350,000 hrs 40°C Gf

Sealing

IP67

 

 

Electrical Connections

Screened 3 core cable or integral connector

Detailed Dimensions

Refer to drawings below

Galvanic Isolation Amplifier

Click for pdf

Outline

Click for pdf
Request AutoCAD Drawing
Datasheet Click for pdf
Installation Sheet Click for pdf


Preferences

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 5mm to 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 code
Connector Axial, IP67, M12 - 4 pin.
J
Cable Axial Gland IP67
L
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 15000cm.
Specified in cm after the L
e.g. L200 for 200cm cable from axial cable gland

<+/-0.1% FSO Linearity error
Z650

 

Click Here For Approved Galvanic Isolation Amplifier Options



 

 

Free Design Service

If you need a position sensor that is outside the scope of the above options to suit your installation requirement or specification, Positek will be happy to modify or create a new design to suit your needs


Contact Positek Technical Department - Click Here


 

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  Positek Limited

L6 The Link   Andoversford Industrial Estate   Cheltenham   Glos GL54 4LB   UK
Tel: +44 (0) 1242820027   Fax: +44 (0)1242 820615   Email: Sales@Positek.com

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