E133 Linear Position Sensor

Description

The Positek mid stroke E133 linear position sensor is ATEX and IECEx approved for use in potentially explosive gas/vapour and dust atmospheres. It is designed for a wide range of industrial applications and is ideal for OEMs seeking good sensor performance in situations where a mid-bodied sensor is required for operation in hazardous areas. The unit is compact and space-efficient, being responsive along almost its entire length, and like all Positek® sensors provides a linear output proportional to displacement. Each unit is supplied with the output calibrated to the travel required by the customer, from 0-51mm to 0-100mm and with full EMC protection built in.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor has a rugged stainless steel body and plunger. It is easy to install and set up, the stainless steel mounting flange has two 4.5mm by 30 degree wide slots on a 48mm pitch. The plunger can be supplied free or captive, with female M4 thread, or spring-loaded with a ball end. The E133 mid stroke sensor also offers a range of mechanical options, 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.

Follow us on Facebook

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 0-51mm to 0-100mm in increments of 1mm. For example, if your application requires 3" (76mm) measurement, then Positek will manufacture the sensor specifically for this length. The mechanical length and calibration will be set up for 76mm.

Connector/Cable Options

Option	Option Code
Connector - Axial, IP67, M8 4 pin	J
Cable with axial gland, IP67	L (3 core cable) LQ (5 core cable)
Cable with axial short gland, IP67	M (3 core cable) MQ (5 core cable)
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 M/MQ e.g. L200 for 200cm cable from axial cable gland

Plunger Options

Option	Option Code
Spring loaded (extended)	R
Dome end on plunger	T
Non captive plunger (not with options "R" or "T")	V

<+/-0.1% FSO Linearity error

Option Code
Z650

Intrinsic Safety

ATEX/IECEx approval

The sensor is ATEX/ IECEx approved to:
Ex II 1GD
Ex ia IIC T4 Ga (Ta = -40°C to + 80°C )
Ex ia 111C T135°C Da (Ta = -40°C to + 80°C ).
This designates the sensor as belonging to; Group II: suitable for all areas except mining, Category 1 GD: can be used in areas with continuous, long or frequent periods of exposure to hazardous gas (Zones 2 to 0) and dust (Zone 20).

Gas:
Protection class ia, denotes intrinsically safe for all zones.
Apparatus group IIC: suitable for IIA, IIB and IIC
explosive gases.
Temperature class T4: maximum sensor surface
temperature under fault conditions 135°C .

Dust:
T135°C: 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	35mm
Body Length	Calibrated travel: 51mm to 70mm: 141.3mm 71mm to 100mm: 171.3mm
Push Rod Outside Diameter	6mm
Travel	Any stroke from 0-51mm to 0-100mm (e.g. 76mm)
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
Sealing	IP67
Electrical Connections	Screened cable or Integral conductor

DATA SHEET

BODY CLAMPS

E133 Linear Position Sensor

E118 Linear Position Sensor

E138 Linear Position Sensor