ROTRONIC HF5 - Manual (Page 34)

E-M-HF5-V2_12
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroFlex HF5 Humidity Temperature
Transmitters: User Guide Instruction Manual
Document Type
Page 34 of 36
Document title
© 2009-2013; Rotronic AG E-M-HF5-V2_12
Calculated parameters
HF52 HF53 / HF54 / HF56 HF556 / HF557 / HF566
Psychrometric calculations
Dew point (Dp) above and below freezing
Frost point (Fp) below freezing and dew point above freezing
Wet bulb temperature (Tw)
Enthalpy (H)
Vapor concentration (Dv)
Specific humidity (Q)
Mixing ratio by weight (R)
Vapor concentration at saturation (Dvs)
Vapor partial pressure (E)
Vapor saturation pressure (Ew)
Start-up time and data refresh rate
HF52 HF53 / HF54 / HF56 HF556 / HF557 / HF566
Start-up time 14 s (typical) 3.s (typical) 3 s (typical)
Data refresh rate 5 s (typical) 1 s (typical) 1 s (typical)
Configurable analog outputs HF52 HF53 / HF54 / HF56
Output 1 Can be made to correspond to any parameter
Parameter User configurable with the ROTRONIC HW4 software
Scale User configurable with the ROTRONIC HW4 software
Output 2 Can be made to correspond to any parameter
Parameter User configurable with the ROTRONIC HW4 software
Scale User configurable with the ROTRONIC HW4 software
Output 1 and Output 2
Signal type 4…20 mA
0…20 mA
4… 20 mA
0… 1 V
0… 5 V
0… 10 V
(user configurable)
User configurable scaling limits - 999.99 … +9999.99 engineering units
Short circuit tolerant Yes
Maximum external load 500 Ω 500 Ω (current output)
Minimum external load 0 Ω
1000 Ω (voltage output)
0 Ω (current output)
Digital interface HF52 HF53 / HF54 / HF56 HF556 / HF557 / HF566
Interface type N/A Optional: RS-485 or
USB + RS-485 or
Ethernet + RS-485 HF556/ HF566: RS-485
or
USB + RS-485 or
Ethernet + RS-485
HF557: Ethernet
Service connector HF52 HF53 / HF54 / HF56 HF556 / HF557 / HF566
Interface type UART (Universal Asynchronous Receiver Transmitter)
Maximum service cable length 5 m (16.4 ft)
General specifications HF52 HF53 / HF54 / HF56 HF556 / HF557 / HF566
Optional display
LC, 1 or 2 decimals
resolution, no backlight,
trend and alarm
indication
LC, 1 or 2 decimals resolution, backlight, trend and
alarm indication