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Intrinsic Safety
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ATEX approval
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The
sensor is ATEX approved to II 1G EEx ia IIC T4 (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.
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Galvanic Isolation Amplifier
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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, capacitance and inductance can be up to:- Capacitance:
550 nF max, Inductance: 99 μH max.
Approved amplifiers
are available from Positek; there is a
choice of 0.5-9.5V or 4-20mA transmission outputs.
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Sensor Specification
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Dimensions
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Body Diameter
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35mm
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Body Length (to
seal face)
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44mm
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Shaft
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15mm, OD 6mm
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For full mechanical details see
drawing
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Measurement range
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Any angle from ±10° to ±80°
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Independant Linearity
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<±0.25% up to 100° @ 20°C
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Temperature Coefficient
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<±0.01%/°C Gain & <±0.01%FS/°C Offset
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Resolution
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Infinite
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Noise
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<0.02% FSO
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Shaft Torque
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<20mNm Static
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Frequency Response
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>10KHz (-3dB)
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Temperature Limits
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Operating
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-40 to +80°C
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Storage
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-40 to +125°C
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EMC Performance
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Susceptibility
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EN 61000-6-2
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Radiated
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EN 61000-6-3
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Vibration
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IEC 68-2-6: 10g
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Shock
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IEC 68-2-29: 40 g
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MTBF
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350,000 hrs 40°C Gf
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Sealing
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IP65(connector) / IP67(cable)
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Electrical Connections
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Screened 3 core cable or integral connector
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Detailed Dimensions
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Refer to drawings below. Other options available.
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Galvanic Isolation Amplifier |
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Outline
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Request AutoCAD Drawing
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