HF3 Humidity Transmitter

For fixed installation in commercial HVAC applications 

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The HF3 transmitter is designed for fixed installation in cost sensitive commercial HVAC applications where conditions are within the range of 0 to 100 %RH and -40 to 60°C (-40 to 140°F). The HF3 will satisfy application requirements ranging from the most basic to demanding.

The HF3 transmitter is available in different configurations with multiple settings and functions that can be configured and enabled with the ROTRONIC HW4 software after connecting the HF3 to a PC.

Features

Accuracy: ±2 %RH / ±0.3 K at 23°C ±5 K
Temperature limit at probe: -40…60°C / 0…100%RH
Range of application electronics: -40…60°C / 0…100%RH, -10…60°C with LCD
Use as simulator for system validation*
Service interface
Adjusted at 23°C and 10, 35, 80%RH

 
Specifications
Probe type Integrated
Dimensions Wall: ø 82 x 43, probe length 100 mm 
Duct: ø 82 x 43, probe length 207 mm 
Room: 82 x 82 x 26 mm
Operating range electronics -40…60 °C / -10…60 °C (Models with display) 0…100 %rh, non-condensing
Accuracy at 23 ±5 °C ±2.0 %rh / ±1.0 %rh (Type R), ±0.3 K / ±0.2 K (Type R)
Measuring range with integrated probe -40…60 °C / 0…100 %rh
Measuring range with integrated probe -40…60 °C / 0…100 %rh
Power supply / Power consumption 15…40 VDC or 12…28 VAC/ <100 mA
Probe protection Polycarbonate plastic cage, white
Filter cartridge Polyethylene dust filter, gray, 20 um
Response time t 63 <12 s for 63% of a 35> 80% (1 m / sec air flow at the sensor)
Allowed wind speed 20 m/s, with filter
Psychrometric calculations Dew or frost point
Reproducibility Airchip <0.02 %rh / 0.01 K
Measurement interval typically 1 second (without calculations)
Display type Optional graphics display. Presentation configurable.
Backlight with Backlight
Alarm indicators Yes
Exploitation software ROTRONIC HW4.2
Trend indicator Yes, for models with display
Probe adjustment by software Yes, with service cable
Remote control functions Via HygroPalm and service cable
Firmware update With internet and HW4 software
User information from Software HW4 (devicemanager)
Data processing via HW4 with interface cables
Device Protection by password Yes
Type of output signals 2
Analogue outputs scaleable by the user Yes
Change of output signal w/o adjustment Yes
Analog output signal (standard) 0…20 mA, 4… 20 mA; 0… 1 V, 0… 5 V, 0… 10 V
Digital output signal (standard) UART
Min. / max. load voltage / current signal V min = 10 V + (0.02 x Load*) * = Resistance in ohms
Service Interface Mini USB (UART)
Service Information Calibration interval
Max. cable length service cable 5 m
Probe material Polycarbonate
Enclosure material ABS
IP protection rating HF3x-S/ HF3x-R: IP20 
HF3x-W/ HF3x-D: IP65
Fire protection class Complies UL94-HB
FDA/GAMP compatibility FDA 21 CFR Part 11 and GAMP compatible

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“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.

 

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