HT instruments HT9 - Manual (Page 13)

HT6-HT8-HT9
EN - 12
Mercury-vapour lamp and halogen lamp test
Touch the glass of the tube or a supply pole with the lead and press the “Test” button. If
lighting is not steady, the tube is defective. If the tube only operates when it is not installed
and turns off and on or seems unsteady when it is installed, check that the tube is not
unusually overheated, as this may cause a repeated opening and closing of the tube
switch.
6. MAINTENANCE
6.1. GENERAL INFORMATION
1. While using and storing the instrument, carefully observe the recommendations listed
in this manual in order to prevent possible damage or danger during use.
2. Do not use the instrument in environments with high humidity levels or high
temperatures. Do not expose to direct sunlight.
3. In case the instrument is not to be used for a long time, remove the batteries to avoid
liquid leaks that could damage the instruments internal circuits.
6.2. BATTERY
REPLACEMENT
WARNING
Only expert and trained technicians should perform this operation. Before
carrying out this operation, make sure that the instrument has been
disconnected from all circuits.
1. Loosen the battery cover fastening screws and remove the cover.
2. Remove the flat batteries from the battery compartment.
3. Insert the new batteries of the same type. Pay attention to the correct polarity.
4. Position the battery cover back over the compartment and fasten it with the relevant
screws.
5. Do not scatter old batteries into the environment. Use the relevant containers for
disposal.
6.3.
CLEANING THE INSTRUMENT
Use a soft and dry cloth to clean the instrument. Never use wet cloths, solvents, water, etc.
6.4.
END OF LIFE
WARNING
: the symbol on the instrument indicates that the appliance and its
accessories must be collected separately and correctly disposed of.