Ex Heater HEX4-135, Zone 1/21

Part No.: 20S5510

Product features

  • Self-regulating Ex heater for heating metal bodies
  • Approval according to ATEX, IECEx for sampling from gas Ex zones 1/2 or 21/22
  • For gas sample probes type SP3000, SP3100 and SP3110 or heated filters, mounting is carried out by M&C
  • Heater can also be used when heating energy radiates through a suitable partition wall into areas of Ex zone 0 or 20
  • Operating temperature range from 90 to 120 °C [194 to 248 °F]
  • Maximum surface temperature: 135 °C [275 °F]
  • With low-temperature alarm contact
  • Power: 110–240 V

Certifications

Product information & downloads

Manual
CE Certificate
Unit calculator

Barometric adjustment of the operating altitude of O₂ analyzers without pressure compensation

Enter the planned operating altitude in the field. Set the analyzer to the calculated O2 vol% value at 1013 mbar (altitude = 0 m) in air to measure at the planned operating altitude without barometric error.

Result: 22,9378 [vol%] need to be set to measure at the planned altitude without barometric error.*

*Air with standard pressure 1013 mbar = 20.93 vol% O₂

Pressure drop and delay time

Enter your values in fields 1 to 3.

1

2

3

Result: 3,39 Delay time approx. in [s]*

* Single change of gas, for 90 % response time approx. 3 changes of sample volume are required.

Calculation of the pressureless 100 % H₂O saturation

Enter the required H₂O dew point (°C).
The calculation only provides sufficiently accurate values in the temperature range between -20 °C and +90 °C.

Pressure units

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Temperature units

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Length units

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Area units

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Volume units

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Weight units

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Energy units

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Flow rate

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Flow velocity

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Performance units

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  • Description
    Option: heating type HEX4‑135, explosion‑proof version for mounting in Ex zone 1/2, 21/22 and onto the dividing wall to zone 0/20 with protection class according to ATEX, EX II 2 G Ex eb mb IIC T4 Gb, EX II 2 D Ex tb IIIC 135°C Db BVS 04 ATEX E 253 / IECEx BVS 15.0060, self‑regulating to 90 °C at ambient 0 °C, maximum surface temperature: 135 °C, power: 115/230 V AC, 400 W
  • Product features
    Explosion-proof Yes
    Heating Yes
    Temperature 120 °C [248 °F]
    Power supply 110‒120 V 220‒240 V

Configure the product in 4 steps

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