IN-E-HyFlex-V4_10
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroFlex transmitter version 4: instruction
manual
Document title
Page 46 of 61
© 2006; Rotronic AG IN-E-HyFlex-V2_10.doc
Analog outputs (scalable) HygroFlex 1 2: relative humidity and temperature
HygroFlex 3 3: relative humidity, temperature
and calculated parameter
7)
Analog signals (selectable) HygroFlex 1 and 3 0…1V, 0…5V, 0…10V
0…20 mA, 4…20 mA
Minimum load for voltage outputs 1000 ohm
Maximum load for current outputs 500 ohm
Standard serial outputs HygroFlex 1 RS232 (internal service connector)
HygroFlex 2 and 3 RS232 / RS485 (external connector)
Optional Ethernet / serial output HygroFlex 2 and 3 TCP/IP and RS485
Electrical Connections power cable grip and terminals
8)
analog outputs cable grip and terminals
8)
serial output connector
9)
probe input(s) connector
10)
Optional LC display and keypad alphanumerical, 0.000…9999
membrane keypad
Housing Material ABS (standard)
metal (option)
Housing Dimensions 207 x 150 x 59 mm (8.15 x 5.91 x 2.32”)
Weight 800 g (1.76 lb)
Protection grade IP65 / NEMA 4
1) Specify engineering units and range when ordering (both can be changed by the user with optional HW4
software). See separate probe specifications regarding the different range limits
2) Not available with the HygroFlex 1. The accuracy of the computed parameter is limited by the accuracy of
the measured parameters on which it is based
3) The standard factory setting is frost point for values below freezing. This setting can be changed to dew
point with the optional HW4 software
4) A fixed value is used for the computations of this parameter. The fixed pressure value can be changed by
the user with the optional HW4 software. The HygroFlex can also be programmed to accept the input
from a pressure probe (variable pressure value)
5) Accuracy, repeatability and operating limits are specified separately for each model of probe
6) ROTRONIC analog probes: because the HygroFlex cannot read a negative input voltage, temperature
measurement with probes having a standard output is generally limited to values above freezing. Third-
party probe (pressure or other): linear voltage output signal within the range of 0..2.5 VDC, supply voltage
5 or 15 VDC, 10 mA (jumper selectable)
7) The span of the computed parameter should be determined under consideration of the D/A resolution of
the corresponding analog output (12-bit is standard for output # 3). Depending on the desired signal
resolution, a wide span may require the optional 16-bit D/A converter for analog output # 3
8) ½” conduit adapters or connectors also available
. Recommended cable for cable grips: 7..9 mm diameter
( 0.275..0.354”) with 18 AWG wires. Cable for output signals should preferably be shielded.
9) This is a 5-pin connector that is shared by the RS232 and RS485 signals. A matching 2-cable connector
is supplied with the transmitter
10) Supplied with the probe
To Next Page
Loading...
