Crbasic program examples, 1 wiring for the program examples – Campbell Scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer User Manual
Page 11
CS420-L and CS425-L Pressure Transducers
adjustment factor =
input range
output
=
50 mV
55 mV
=
.909
The excitation adjusted to output 50 mV is:
adjusted excitation
= (original excitation)*(calculated adjustment factor)
= (5000 mV)*(.909)
= 4545 mV
Use 4545 mV to excite the sensor instead of 5000 mV within either the BrFull
or BrFull6W instruction.
6. CRBasic Program Examples
6.1 Wiring for the Program Examples
6.1.1 BrFull Instruction (4-Wire Full Bridge Measurement)
Datalogger
CS420-L/CS425-L
Excitation
E1
Red (Supply +)
Input
H1
Yellow (Output +)
Input
L1
Blue (Output -)
Analog Ground
AG
White (Supply -)
G
Clear
(Shield)
The orange and black wires are not used and the ends of these wires should be
taped to prevent shorting.
6.1.2 BrFull6W Instruction (6-Wire Full Bridge Measurement)
Datalogger
CS420-L/CS425-L
Excitation
E1
Red (Supply +)
Input
H1
Orange (Monitor +)
Input
L1
Black (Monitor -)
Input
H2
Yellow (Output +)
Input
L2
Blue (Output -)
An. Ground
AG
White (Supply -)
G
Clear
(Shield)
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