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HygroFlex5-EX – HF5-EX – two-channel transmitter

Features

  • Measurement of relative humidity and temperature, optional output of dew points
    and other calculated parameter
  • Safe operation in areas with explosion risk
  • Intrinsically safe probes
  • Interchangeable stainless steel probes
  • Robust aluminium housing

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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.

 

Characteristics:
• Measurement of relative humidity and temperature, optional output of dew points
and other calculated parameter
• Safe operation in areas with explosion risk
• Intrinsically safe probes
• Interchangeable stainless steel probes
• Robust aluminium housing

Specifications & Spare Parts

Dimensions 160 x 100 x 61 mm
Weight 1030g / 1140g
Operating range electronics -40…60 °C / -10…60 °C (with display) 0 to 100% rh non-condensing
Accuracy at 23 ±5 °C ±0.8 %rh / ±0.1 K
Measuring range with interchangeable probe 0…100 %rh and -40…85 °C
Accuracy analog output <20 μA
Power supply 10…28 VDC
Current consumption 2×24 mA start up / 2×20 mA operation
Humidity sensor Probe dependent
Temperature sensor Probe dependent
Psychrometric calculations All psychrometric values
Number of probe inputs 1
Start-up time Standard cold <60 s / warm <30 s
Measurement interval 20…240 s
Display type Optional graphics display. Presentation configurable.
Backlight without Backlight
Trend indicator Yes, for models with display
Probe adjustment by software Not via device menu
(only outside the explosive zone with HW4 + AC3001)
Firmware update With internet and HW4 software
User information from Software HW4 (devicemanager)
Data processing via HW4 Graphics, statistics, analysis, qualification, etc.
Circuit type 2 -Wire
Analogue outputs scaleable by the user Yes
Analog output signal (standard) 4…20 mA, two-wire
Galvanic separation output signals Yes
Service Interface UART (internal in device)
Probe material Stainless steel
Enclosure material Aluminum (DIN EN 1706 EN AC-AlSi 12 (Fe))
Cable connections Connections: Ex-e terminals (0.2…2.5 mm2)
Cable gland: 16 x 1.5 (Ø cable 4.5…7 mm)
IP protection rating IP66
FDA/GAMP compatibility FDA 21 CFR Part 11 and GAMP compatible
CE / EMC conform EMC Directive 2004/108/EC
ATEX directives EU94/9/EC (ATEX)
EX identification EX II 2(1) G Ex eb mb [ia Ga] IIC T5 Gb
EX II 2(1) D Ex tb [ia Ga] IIIC T80°C Db