Testo testo 476 Tachometer, 30 - 12 500 rpm 0563 4760 Data Sheet

Product codes
0563 4760
Page of 20
12
9. Replacing the flash tube
1 Remove the front bezel screw located on the underside
of the front bezel (
).
2 Swing the bezel upwards and outward carefully (
). Be
sure not to break the old flash tube. Ensure that the
bezel hooks on the top edge are released. Remove the
bezel.
3 Firmly grasp the spent flash tube and pull it straight out
(
).
4 Using a lint and oil-free tissue, insert a new flash tube ,
with the marking pointing up, (
) into the socket. 
CAUTION: 
Make sure that the flash tube is correctly
installed in the socket. If it is crooked, the
light output of the reflector is reduced.
5 Slide the front bezel (
) over the new tube and rehinge
it at the top. Rotate the bezel back towards the bottom
of the case and reinsert the front bezel screw. 
NOTE:
As a safety precaution, the unit will not flash unless the
bezel is in place. If the bezel is not secured properly, an
emergency message “E1” will be shown in the display.
Refer to 7. Error messages for additional information.