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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.
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 probe
• Interchangeable stainless steel probes
• Robust aluminium housing
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 PROBE: 0…100 %rh and -40…85 °C
ACCURACY ANALOG OUTPUT: <20 μA
POWER SUPPLY: 10…28 VDC
CURRENT CONSUMPTION: 2x24 mA start up / 2x20 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: Aluminium (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: 2014/30/EU
ATEX DIRECTIVES: 2014/34/EU (ATEX) CSA22.2, UL 508
EX IDENTIFICATION:
EX 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 AMERICA:
Class 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
DIMENSIONS: 160 x 100 x 61 mm
