-
６
-
5.
Maintenance
5.1
Clean:
(1) Don’t touch the lens with hand, Dust on lens should be cleaned by soft brush or
absorbent cotton or cleaned by absorbent cotton, lens paper with the mixture of
alcohol and ether (proportion 1:4).
(2) Alcohol and ether all are burnt easily, please take them away from fire. Be careful for
turn on and off power.
(3) Don’t clean painted metal and galvanizing metal with organic solvent such as
alcohol, ether or the mixture of the both. Silicon cloth or soft cleaning preparation is
suggested to clean it.
(4) Plastic should be cleaned by soft cloth with clear water.
5.2
Application environment
(1) Should be in cold and dry environment , without shaking ,dust and steam without
acid-base and other corrosive gas
。
(2) Normal operation condition
：
indoor temperature
：
0
℃～
40
℃
，
maximum
relative
humidity
：
85%
(3) High humidity area
，
recommend
with dehydrating unit in case of mildew and frog.
5.3
Bulb Replacement
A
.
Replacement of halogen.
▲
Please use specified bulb in case of damage or fire.
Specified bulb
：
halogen
12V
/20W or 6V/30W
，
LED
3.4V/3W LED(According to outfits
）
.
(1) shut off the power
（
switch to "
○
" side
）
,unplug the power
socket
；
(2) waiting about 30 minutes until lamp box is cold.
▲
Please be sure that the bulb is cool, then follow by the nest operations.
(3) Lay aside the microscope reliably, unscrew the knurled thumb screw of the lamp
housing cover on the underside of base.
(4) Pull the knurled thumb screw gently outward, turn out lamp holder flap.
(5) Confirm the bulb is cold down, Pull out the old bulb carefully
；
(6) Hold a new bulb with silk cloth to avoid fingerprint and dust affect bulb brightness and
service life, and insert fully the contact pins into the bulb socket
；
▲
Before replace bulb
，
confirm if bulb connected strongly with the power cable in case of
bad contact.
▲
Plug fully contact in bulb socket, or will result in short circuit.
(7) Push back the lamp holder flap, tighten the knurled thumb screw.
▲
After working 10 hours
，
suggesting the suspension of using about half an hour for
continue using.
B
.
Replacement of LED
Please contact us.
