Rotronic HF5-EX

The new HygroFlex5-EX series is the latest development in two-channel transmitters for the exact measurement of humidity and temperature in explosive atmospheres. This device conforms to the latest international standards.

Description

The new HygroFlex5-EX series is the latest development in two-channel transmitters for the exact measurement of humidity and temperature in explosive atmospheres. This device conforms to the latest international standards.

The HF5-EX series consists of a robust aluminium transmitter with or without display. The attached probes are cast into a stainless steel tube, and are certified for operation in Zone 0/20. The transmitter itself is certified for Zone 1/21. The intelligent design of the circuitry with electrical isolation permits the measuring system to be operated without an intrinsically safe power supply.

Features

  • Measurement of relative humidity and temperature, optional output of dew point and other calculated parameters
  • Safe operation in areas with explosion risk
  • Intrinsically safe electrical construction
  • No intrinsically safe power supply required
  • Interchangeable stainless steel probes
  • Robust aluminium housing

Specifications

Dimensions160 x 100 x 61 mm
Weight1030 g / 1140 g
Operating range>-40…60 °C / -10…60 °C (Models with display) 0…100 %rh, non-condensing
Accuracy at 23 ±5 °C±0.8 %rh / ±0.1 K
Measuring range with interchangeable probe0…100 %rh and -40…85 °C
Accuracy analog output<20 μA
Power supply10…28 VDC
Current consumption2×24 mA start up / 2×20 mA operation
Humidity sensorProbe dependent
Temperature sensorProbe dependent
>Psychrometric calculationsAll psychrometric values
Number of probe inputs1
Start-up timeStandard cold <60 s / warm <30 s
Measurement interval20…240 s
Display typeOptional graphics display. Presentation configurable.
Backlightwithout Backlight
Trend indicatorYes, for models with display
Probe adjustment by softwareNot via device menu
(only outside the explosive zone with HW4 + AC3001)
Firmware updateWith internet and HW4 software
User informationfrom Software HW4 (devicemanager)
Data processing via HW4Graphics, statistics, analysis, qualification, etc.
Circuit type2 wire
Analogue outputs scaleable by the userYes
Analog output signal (standard)4…20 mA, two-wire
Galvanic separation output signalsYes
Service InterfaceUART (internal in device)
Probe materialStainless steel
Enclosure materialAluminium (DIN EN 1706 EN AC-AlSi 12 (Fe))
Cable connectionsConnections: Ex-e terminals (0.2…2.5 mm2)
Cable gland: 16 x 1.5 (Ø cable 4.5…7 mm)
IP protection ratingIP66
FDA/GAMP compatibilityFDA 21 CFR Part 11 and GAMP compatible
CE / EMC conform2014/30/EU
ATEX directives2014/34/EU (ATEX) CSA22.2, UL 508
EX identificationEX II 2(1) G Ex eb mb [ia Ga] IIC T5 Gb
EX II 2(1) D Ex tb [ia Da] IIIC T80°C Db
Identification EX North AmericaClass I, Div 1/2, Groups ABCD T5…T4,
Class II, Div 1/2, Groups EFG T80°C…T110°C
Ex e mb [ia Ga] IIC T5…T4 Ga/Gb
Ex tb [ia Da] IIIC T80°C…T110°C Da/Db
Class I, Zone 0/1, AEx e mb [ia Ga] IIC T5…T4 Ga/Gb
Class II, Zone 20/21, AEx tb [ia Da] IIIC T80°C…T110°C Da/Db

Documentation

Datasheet (PDF)
 

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