Signet 9900 Operating Instructions Manual page 57

Calibration Procedures - pH
Manual Calibration Procedure - pH
Requires prepared buffers. System calibration is possible with two known pH
solutions within 0 to 14 pH (buffers of pH 4.01, 7, or 10 are recommended,
but use a buffer close to your own process value.)
To Calibrate:
Place electrode tip in
pH buffer.
To Set Slope:
Place electrode tip in
pH buffer two pH units
different than standard.
To Set Calibration Date:
30s
ENTER
Allow for stabilization
30 seconds to
several minutes
to accept
30s
ENTER
Allow for stabilization
30 seconds to
several minutes
to accept
+
Display returns to
VIEW Mode
To Change Reading:
ENTER
to accept
To Change Reading:
to accept
ENTER
Single-point calibration sets
STANDARD only; Signet
recommends a two-point
calibration to set SLOPE in
addition to STANDARD.
Quick Manual
Calibration Procedures:
1-Point Calibration:
1. Set solution standard.
2-Point Calibration
(recommended):
1. Set solution standard.
2. Set solution slope.
9900 Transmitter 57