Humidity & temperature transmitter

HygroFlex5 - HF5

interchangeable HC2 probes
cable linked or direct mounting probes
digital and analogue outputs

Download a datasheetRequest a quoteCall us

 

The HygroFlex relative humidity (rh) and temperature measurement transmitter Model HF5 provides accurate and robust measurements for industrial applications.

The instrument can be wall-mounted, and provides analogue and digital outputs for a variety of humidity scales.

Probes may be mounted either directly on the instrument, for ambient condition monitoring, or via up to 100m of cable, for insertion into process environments that include high temperature or high pressure applications.

Any of the HC2 range of probes may be used, making the HF5 a flexible and user friendly device. 

The HC2 range of humidity (H2O) and temperature measurement probes are a completely new type of probe, thanks to AirChip3000.

Rotronic have taken water vapour measurement to the next step, offering a system accuracy of ±0.8 %rh and ±0.1 K.

The AirChip3000 combines an ASIC, microcontroller and EPROM on one chip mounted within the probe, allowing total interchangeability of probes within a few seconds.

The HF5 provides humidity outputs in a choice of humidity scales:

  • rh in %
  • Temperature in °C or °F
  • Absolute humidity in Kg/m3
  • Dew point/frost point in °C or °F
  • Wet-bulb temperature in °C
  • Enthalpy in KJ/Kg
  • Specific humidity in g/Kg
  • Vapour concentration in g/m3
  • Mixing ratio in g/Kg
  • Saturation vapour pressure in hPa
  • Partial water vapour pressure in hPa
  • Water vapour saturation pressure in hPa
  • Water vapour partial pressure

For further information about humidity measurement and hygrometry issues, please visit our Masterclass and FAQ sections.

GENERAL

Measurement

Humidity and temperature

Number of probes

1 (any HC2 probe)

Sensor

Compatible with all HC2 probes

Measurement range

0 to 100 %RH

Accuracy at 23 °C ±5 K

Probe dependent

Calculated parameters

All psychrometric parameters

Max. cable length

5 m or 100 m with AC3003 signal amplifier

Display

Configurable graphic backlit LCD (Optional)

Firmware upgrade

Via HW4 software

Certification

CE / EMC compatibility

EMC directive 2004 / 108 / EC

Fire protection class

Corresponds to UL94-HB

FDA / GMP conformity

Conforms to 21 CFR Part 11 and GAMPS

Housing material /protection

ABS

IP rating

IP65 (models with USB or ethernet interface, IP40)

Probe material

Probe dependent

Probe connection /interface

E2 (threaded coupling) / UART

 

HF520

HF53x

HF54x

HF56x

HF55x, digital

Environmental

HF5 operational range (with LCD)

-10 to 60 °C , 0 to 100 %RH

HF5 operational range (without LCD)

-25 to 60°C

-40 to 60°C

MECHANICAL

Dimensions (duct & wall mount)

129 x 72 x 45 mm

192 x 102 x 52 mm

129 x 72 x 45 mm

Weight

220 g

500 g

220 g

ELECTRICAL AND UTILITIES

Configuration

2 x 2 wire

3/4 wire

Electrical connections

Screw terminals inside M16 cable gland

Socket (USB/Ethernet)

2xM16 cable gland

Screw terminals inside M16 cable gland

Socket (USB/Ethernet)

Power supply

10 to 28 VDC

15 to 40 VDC

12 to 28 VDC galv. isolated

9 to 36 VDC

7 to 24 VAC

85 to 240 VAC

Power over Ethernet (PoE) IEEE 802.3 af

Current consumption

2 x 20 mA max.

270 mA max. (without

Ethernet), 420 mA max. (with Ethernet)

30 mA max. (without Ethernet), 45 mA

max. (with Ethernet)

CLASS 1

Analogue output options

Number

2

2

2

2

No analog outputs

Current

4 to 20 mA

0(4) to 20 mA

Voltage

N/A

0 to 1/5/10 V

Galvanic isolation

N/A

HF54 and HF56

Maximum load

2x500 Ω

≤2x500 Ω (current output)≥1 kΩ/V (voltage output)

Digital output options

RS-485

 

No digital outputs

 

RS-485 & analog

RS-485

USB

USB & RS-485 & analog

USB & RS-485

Ethernet

Ethernet RJ45 & RS-485 & analog

Ethernet RJ45 &

RS-485

Wireless

Wireless & RS-485 & analog

Wireless & RS-485

All specifications subject to change