G502 Small Angle Rotary Sensor

CSA approved intrinsically safe sensors for hazardous gas atmospheres

Rotary

This sensor at a glance

Available in any measurement angle from 5 to 15° e.g. 7.5°
(for 16-160° range see G500)

Longer operating life than a potentiometer

Fast delivery options available

Body Diameter: 35mm

Sensor Mounting: Flange or servo

Spring loaded shaft option

Sealed to IP65/67 depending on connector/cable option

Independent Linearity:
<±0.25% FSO 

Resolution: Infinite

Temperature range: -40°C to +80°C

Intrinsically safe  G502 is CSA approved for use in potentially explosive gas/vapour atmospheres. The G502 is designed for industrial and scientific feedback applications, like the G500 but with better resolution at smaller angles of deflection, and is ideal for OEMs seeking good sensor performance for arduous applications in hazardous areas.

The G502, like all Positek® sensors, provides a linear output proportional with angle of rotation. Each unit is supplied with the output calibrated to the angle required by the customer, between 5 and 15 degrees and with full EMC protection built in.

There is a machined registration mark to identify the calibrated mid point.

Overall performance, repeatability and stability are outstanding over a wide temperature range. The G502 has long service life and environmental resistance with a rugged stainless steel body and shaft. The flange or servo mounting options make the sensor easy to install, it also offers a range of mechanical options. Environmental sealing is to IP65 or IP67 depending on selected cable or connector options.

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.

Intrinsic Safety

CSA  Approval
This sensor is 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.


Dimensions

Body Diameter
35mm
Body Length (to seal face)
44mm
Shaft
15mm, OD 6mm
For full mechanical details see drawing
Measurement Range
Any angle from ±2.5° to ±7.5°
Independent Linearity<±0.25% FSO at 20°C
Temperature Coefficient
<±0.01%/°C Gain & <±0.01%FS/°C Offset
Resolution
Infinite
Noise

<0.02% FSO

Shaft Torque

<20mNm static

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
IP65/IP67 (connector) / IP67 (cable)
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 ±2.5° to ±7.5° in increments of 1°. For example, if your application requires 10° measurement, then Positek will manufacture the sensor specifically for this angular range. The sensor will measure 10° however will still rotate through 360°.


Connector/Cable Options

Connector - Hirschmann GD series Axial, IP65
J
Connector - Axial, IP67, M12, 4 pin - without trim adjustment
J+Z600
Connector - Axial, IP67, M12, 4 pin - with trim adjustmentJ+Z601
Cable with axial gland, IP67
L (3 core cable)
LQ (5 core cable)
(click for more information)
Cable with axial short gland, IP67
M (3 core cable)
MQ (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 M/MQ e.g. L200 for 200cm cable from axial cable gland


Mounting Options

Option
Option Code
Flanged housing
Blank
Servo mount
P

Click Here for approved Galvanic Isolation Amplifier Options


Galvanic Isolation Amplifier
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Outline
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Request AutoCAD Drawing
Datasheet
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Installation Sheet
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