ROTRONIC HF8 - Manual (Page 34)

E-M-HF8-V2_10
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroFlex HF8 Humidity Temperature
Transmitter: User Guide Instruction Manual
Document Type
Page 34 of 35
Document title
© 2012; Rotronic AG E-M-HF8-V2_10
Digital interface options HF8
Interface options RS-485
USB and RS-485
Ethernet (wired) and RS-485
Ethernet with PoE
Service connector HF8
Interface type UART (Universal Asynchronous Receiver Transmitter)
Maximum service cable length 5 m (16.4 ft)
General specifications HF8
Optional display LC, 1 or 2 decimals resolution, backlight, trend and alarm indication
Probe material Polycarbonate
Probe dust filter material Polyethylene
Housing material ABS
Housing protection grade IP 65 (except models with USB or Ethernet interface)
Physical dimensions See Models
Weight 540 g (1 lb 3 oz) – depends on model
Conformity with standards HF8
CE / EMC immunity
EMC Directive 2004/108/EG: EN 61000-6-1: 2001, EN 61000-6-2: 2005
EN 61000-6-3: 2005, EN 61000-6-4: 2001 + A11
Solder type Lead free (RoHS directive)
Fire protection class Corresponds to UL94-HB
FDA / GAMP directives compatible
Environmental limits HF8
Storage and transit -50…+70 °C / -20...+70 °C (models with display), 0…100 %RH, non condensing
Operating limits at electronics -40 … +85 °C / -10….60 °C (models with display), 0…100 %RH, non condensing
Temperature limits at probe Depends on probe model
Maximum humidity at sensor
100 %RH up to 80 °C (176 °F)
75 %RH at 100 °C (212 °F)
45 %RH at 125 °C (260 °F)
15 %RH at 150 °C (302 °F)
Maximum air velocity at probe 20 m/s (3,935 ft /min)
Critical environments Humidity sensor: as per DV04-14.0803.02 - Critical chemicals
10.2 Dew point accuracy
See document E-M-HC2 Probes > Dew point accuracy
11 Accessories
For accessories and parts such as the HW4 configuration software, service cables, calibration accessories
and spare dust filters, please see document E-M-HC2-accessories