E-m-hf5-v2_12 – ROTRONIC HF5 User Manual
Page 24
E-M-HF5-V2_12
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroFlex HF5 Humidity Temperature
Transmitters: User Guide
Instruction Manual
Document Type
Page
24 of 36
Document title
© 2009-2013; Rotronic AG E-M-HF5-V2_12
Electrical diagram for current outputs
The maximum permissible cable length, connecting the unit to other devices, is determined by the total
resistance resulting from the addition of the cable resistance and that of the devices connected in series with
the unit. This resistance should not exceed 500 ohms.
Terminal block diagram (analog outputs only)
F1: fuse (soldered to PCB)
Note: If so desired, K2-3 and K2-4 can be tied with the protective ground by closing solder pad B2 on the PCB
Terminals
Description
K6-1: -
►
Protective ground
K6-2
Power supply phase: 85 to 240 VAC
K6-3
Power supply neutral 85 to 240 VAC
Terminals
Description
K2-4: GND
Ground (tied with other GND)
K2-3: GND
Ground (tied with other GND)
K2-2: OUT2
Temperature output (+)
K2-1: OUT1
Relative humidity or dew point (+)
~
AC
DC
AC L
AC N
B2
OUT2
OUT1
GND