Hach-Lange FILTERTRAK FT 660 sc User Manual - Manual (Page 16)

13. Push HOME to show the online measurements.
14. Put the dry standard in the protective case.
Figure 8 Install the dry standard
1 Dry standard 5 Locking pin
2 Protective case 6 Notch in the aperture plate
3 Top of the dry standard 7 Head assembly
4 Serial number 8 Aperture plate
Verification procedure with dry standard and software
1. From the Main menu, select Sensor Setup, [Select Sensor],
Calibrate, Verification, Perform Ver.
2. Select the available Output Mode (Active, Hold or Transfer) from the
list box and confirm.
3. Select DRY for the verification type and confirm.
4. Remove the dry standard from the protective case. Refer to
Figure 8
on page 14.
5. Make sure that the serial number on the display is the same as the
serial number on the dry standard, then confirm. Refer to Figure 8
on page 14.
6. Remove the head assembly from the body of the instrument.
7. Clean, dry and inspect the dry standard.
a. Use the disposable wipes provided to clean the dry standard.
b. Use a dry cloth to dry the top
1 /
3
of the dry standard. Refer to
Figure 8 on page 14.
c. Make sure that the glass of the dry standard is free of chips and
scratches.
8. Install the dry standard.
a. Put the dry standard in the aperture plate. Make sure that the
locking pin goes in the notch in the aperture plate. Refer to
Figure 8 on page 14.
b. Turn the dry standard 1 /
8
of a turn clockwise until the dry standard
locks in position.
c. Use a dry cloth to remove any fingerprints and oils from the glass
of the dry standard.
9. Put the head assembly on the body of the instrument.
10. When the instrument reading is stable, confirm.
"GOOD VER" (good verification) or "BAD VER" (bad verification) is
shown. If "BAD VER" is shown, the instrument did not to meet the
PFC (pass or fail criteria), or the instrument was not able to get a
stable reading. Use
Table 1 to identify the result and what action
should be done.
11. Remove the dry standard from the instrument.
a. Remove the head assembly from the body of the instrument.
b. Turn the dry standard
1 /
8
of a turn counter-clockwise, then
remove the dry standard from the aperture plate.
c. Put the head assembly on the body of the instrument.
12. Confirm to go to Measurement Mode.
13. Push HOME to show the online measurements.
14. Put the dry standard in the protective case.
14 English