Set Up Retransmission Page - ABB 9438 User Manual

7.5 Set Up Retransmission Page

In this section the actual values denoted by 'xxxxx' are unimportant and are used to determine display reading stability when carrying
out the electrical calibration procedure.
– – – – –
SET UP RETRANS
– – – – –
SET UP RETRANS 1
– – – – –
RTX Type 4-20
0-20
0-10
– – – – –
RTX. Log
Bi-Linear
Linear
2 0 0 .
RTX Span mg/kg
Log
2 0 .
RTX Zero mg/kg
1 0 0 .
Enter Input %
5 0 0 .
Enter Output %
Diagnostics YES
NO
N o Y e s
7 PROGRAMMING AND ELECTRICAL CALIBRATION...
Press to advance to next parameter
or
Press to advance to
Factory Settings Page
Set Up Retransmission 1
Retransmission 1 Output Range
The retransmission 1 output can be selected from three mA current ranges to ensure
compatibility with the peripheral device connected.
Select the current range required for retransmission 1 output.
Retransmission 1 Output Scale
Select the retransmission output scale required.
Log (logarithmic) – see Fig. 7.2.
Bi-Linear – see Fig. 7.1.
Linear
Note for Bi-linear and log scales. The accuracy specification of the instrument should
always be given consideration when setting the scale limits to avoid impractical
discrimination on the retransmission output.
Retransmission 1 Span
The span current output can be set to any value between:
Linear 20 mg kg –1
Bi-Linear 20 mg kg –1
Log 100 mg kg
Retransmission 1 Zero
The zero current output can be set to any value between 1.0 mg kg
is available only for logarithmic output.
Note. For linear output, the zero value is always 0 mg kg
Enter Input %
Set the percentage of the display span at which the breakpoint occurs: 1.0 to 100% in
0.1% increments. This is point A on Fig. 7.1.
Enter Output %
Set the percentage output at which the breakpoint occurs: 0.0 to 100% in 0.1% steps.
This is point B on Fig. 7.1.
Diagnostics
Select whether the current output diagnostics are required. See Appendix B.
Continued on next page...
, Section 7.7.
and 20 mg kg –1
and 20 mg kg –1
–1 –1
and 20 mg kg
–1 –1
and 200 mg kg . This
–1
21