DIGITAL WEIGHING INDICATOR
SI 4000
37
6-5. Analog Output Interface (Option 03 : 4~20mA Output)
This Option card converts weight value to Analog Electric Current output(4~20mA) and transfers to
external devices(Recorder, P.L.C), controlled by electric current output.
6-5-1. Specification
Output Current
4~20mA (Output Range : 2~22mA)
Accuracy
More than 1/1,000
Temperature Co-efficiency
0.01%
℃
Max. Loaded Impedance
500Ω MAX.
※
When Weight display is “Zero”, 4mA current will be output, when Weight display is “Full Capacity”, 20mA
current will be output.
6-5-2. Circuit
※
“LO” terminal is not a “GND”, so this “LO” terminal
do not be connected with other “GND” terminal on other
devices.
6-5-3. Output Adjustment
①
This output is adjusted as when the weight is “Zero”, output is “4mA” and When the weight is
“Full capacity”, output is “20mA”.
②
If you need additional adjustment, please adjust with “VR1(Zero)”, “VR2(Span) on the Analog Output PCB.
※
Remark
This Analog option card converts Displayed weight value(Micro-process data) to analog value on D/A
Converter(Digital to Analog converter)
This D/A Converter has Max. 1/4,000 accuracy, so this output is not suitable for high accuracy application,
like more than 1/3,000.
6-5-4. Connecter (9pin, “D-type” female)
9 pin D-type connector(Female)
Terminal Block (3 pin)
1 : HI(+), 5 : (-)
