Electrical Calibration Page - ABB 4690 User Manual

4690 Series
Turbidity systems

8.6.3 Electrical Calibration Page

In this section the actual values denoted by 'xxxxx' are unimportant and are used only to determine display reading stability when
carrying out the electrical calibration procedure.
– – – – –
ELECTRICAL CAL
– – – – –
Calibrate NO
YES
No
Yes
x x x x x
mV Zero1 (0mV)
x x x x x
mV Span1(3000mV)
– – – – –
Adjust RTX Zero
– – – – –
Adjust RTX Span
4 5 17 .
Turbidity (FNU)
IM/4690–EN Rev. A
Electrical Calibration
Press to advance to next page
or
Press to return to the
Operating
Calibrate
Select YES to access the electrical calibration sequence.
Select NO to advance to
Adjust RTX Zero
mV Zero1 (0mV)
Set the millivolt source to 0 mV and allow the analyzer display to stabilize.
mV Span1 (3000mV)
Set the millivolt source to 3000 mV and allow the analyzer display to stabilize.
Adjust Retransmission Zero
Set the milliammeter reading to 4 mA.
Adjust Retransmission Span
Set the milliammeter reading to 20 mA.
Note. The retransmission range selected in the
Return to the page – see Section 6.2.1, page 19.
Operating
8 Configuration and Electrical Calibration
page – see Section 6.2.1, page 19.
.
page does not affect the reading.
Set Up Outputs
33