9032X
30
3.
Solenoid valve #1 is then opened again and CAL1 solution flows through system
for 10 minutes; final millivolt output for CAL1 (m1) reading is taken and stored
into memory.
4.
Solenoid valve #2 (CAL2) is opened for 10 minutes to rinse out system and
update with 1ppm solution.
5.
Solenoid valve #2 is then opened again and CAL2 solution flows through system
for 10 minutes; final millivolt output for CAL2 (m2) reading is taken and stored
into memory.
6.
Calibration is complete. Results are shown on display for 1 minute and then
stored into CAL LOG.
To Perform 2-Pt Calibration:
1) Ensure sample is delivered to analyzer at flow rate of 150-400ml/min
2) Place low concentration solution (100ppb) in the container CAL1.
3) Place high concentration solution (1ppm) in the container CAL2.
4) Check the high and low solution concentrations need to be entered in the
system under CALIBRATION SETUP. Refer to Section 3.5.4.1.1 for more details.
5) Ensure the Grab Sample bottle is empty or disconnected.
6) Press the “CAL 2 Pt” Button in the Commands Window.
3.4.3.4
PROCESS CALIBRATION
A Process Calibration (PROCESS CAL) can be performed only if the analyzer has
successfully passed a 2-Pt calibration. During PROCESS CAL, none of the solenoid
valves are energized and the instrument is calibrated directly to the sample running
through the flowcell. The analyzer calibrates by changing the offset of the
strength/slope taken during the last 2-Pt calibration.
To perform Process Calibration:
From the Commands Window, press the “PROCESS CAL” button. Press on the “0.0
ppb” to open the numerical keypad.
