HD35
- 53 -
V1.12
8.5
C
ONNECTING THE MODEL WITH TERMINAL HEADER INPUTS
HD35ED[G]H model has three terminal header inputs. Each input can be configured as a
Pt100/Pt1000, thermocouple, 0/4…20 mA (shunt resistance inside), 0…50 mV, 0…1 V or potenti-
ometric input. Only input 3 can be also configured as pulse counter (count of voltage-free con-
tact switchings).
Fig. 8.5.1: sensor connection in HD35EDH model
If a channel is configured as current input, insert the 50
Ω
shunt resistance closing the jumper
placed on the terminals of the relevant channel. In all the other configurations, leave the
jumper open.
Fig. 8.5.2: shunt resistance for current input
The current input accepts any value in the range 0 to 20 mA.
8.5.1
I
NPUTS CONFIGURATION
Configuration of inputs can be implemented through the HD35AP-S software (see software in-
structions) or, if the data logger is equipped with a display, through the front keyboard.
To configure the input channel ch x (x=1,2,3 is the number of the input) through the keyboard,
access the menu and select the item Ch x settings
⇒
ch x configuration. Set the type of input
among those available:
o
Pt100 2-wire, Pt100 3-wire, Pt100 4-wire, Pt1000 2-wire, Pt1000 3-wire, Pt1000 4-wire,
o
TC-K, TC-J, TC-T, TC-N, TC-E,
o
0-1V, 0-50mV, 4-20mA, Potentiometer, Counter, Frequency,
o
0-1V Mapped, 0-50mV Mapped, 4-20mA Mapped, Mapped Potent., Mapped Count.,
Mapped Freq.
Input 1
Input 3
Input 2
Pt100
Pt1000
2 wires
0-20 mA
4-20 mA
ON/OFF
contact
Pt100
Pt1000
3 wires
Pt100
Pt1000
4 wires
Thermocouple
K,J,T,N,E
0-1 V
Potenziometer
Jumper
Shunt resistance
0-50 mV
Summary of Contents for HD35AP series
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