NIC-TD-0000025-00
7. Maintenance
- 53 -
7.2.3.
Exchange ZERO Filter
Displays when the zero filter amasses mercury beyond the allowable limit.
Suspend measurement and replace the zero filter as soon as possible.
Method of handling the warning
After pressing the "OK" button on the display screen return to the READY screen.
<Warning screen>
<READY screen>
Open the cover at the bottom of the equipment, remove the zero filter, and then replace it
with a new one.
(Refer to 7.3.1 "Method of changing zero filter".)
*
Please ensure to send the used zero filter back to one of our service representatives.
After replacing the zero filter ensure to clear the amount of mercury adsorbed by the zero
filter using the MENU screen.
(Refer to 5.2.5 "Amount of mercury adsorbed by the zero filter".)
Clearing the amount of mercury adsorbed by the zero filter then allows measurements to be
made.
