28
above (1.000e
-0
), and with the
‘
5 VOLT BIAS
’
light on, you
should read 9.80e
-7
+/- 5% on the display. If not then the
problem is most likely in the amplifier board and not the
detector. If it passes all these tests, the problem is with the
detector, or you may have an intermittent contact, whic h
cleaned itself in the process of removing the circuit boards.
It is wise to rub a pencil eraser across the board
contacts before reinserting them back into the unit. Contact
corrosion is often a problem with all electronic equipment,
especially after many years.
10.4 Computer Re-initialization Procedure
The ILT1700 radiometer is a computer operated
instrument. The computer chip in the radiometer, not unlike
other computer chips, is susceptible to
‘lock
-up
’
when
unrecognized conditions or signals are received. Some of
the typical symptoms of a ILT1700 computer
‘l
ock-up
’
are as
follow:
•
LCD display will not change
•
One or more of the LED
’
s remain on.
•
One or more of the buttons may not work.
If a user experiences any erratic behavior from the
ILT1700 a computer
‘lock
-up
’
may be the problem. The can
be easily reset by the following procedure:
1. Turn ILT1700 Radiometer OFF.
2. Hold MSD button down, turn power on,
3. Release MSD button
4. The LCD display will blink for a few seconds,
telling you that the re-initialization is being performed.
5. The calibration factor for your detector should then
be re-entered into the instrument..
Please contact the factory if you require further
clarification or if this reset procedure does not correct
the problem.
10.5 Handle Operation
The handle on the ILT1700 is capable of rotating 360
degrees when pulled away from its pivot points. The handle
was designed to move easily when pulled from these points.
Unnecessary force may cause harm to the handle.
10.6 Fuse Replacement
The ILT1700 has a built in fuse to preven t extensive
damage in the event the power selection switch is
improperly set prior to plugging the ILT1700 into
230VAC . Customer should always double check the power
and source selections on the rear panel prior to plugging in
the ILT1700. To change th e fuse, follow the steps listed in
10.2 Board replacement above. Once you have removed the
power board, locate the fuse next to the AC power cord
input. The system comes with a BUSS AGC 1/4A 250V UL
approved fuse. Replacement fuse should be available
locally replacement.
10.7 Schematics
Due to the sophisticated nature of the computer control
and low level amplification, we do not recommend that the
user attempt to make repairs, except by way of board
replacement. Specialized equipment is necessary to find the
subtle problems that occur with these circuits, and to
recalibrate them to original specifications. Schematics can
be provided, however, to assist in finding certain power
voltages and input/output pin numbers etc. and for the
unusual situation where no other alternative is available.
Please contact a technical support rep. for schematics.
11. One Year Warranty
The equipment you have purchased from International
Light, Inc. has been expertly designed and was carefully
tested and inspected before being shipped. If properly
operated in accordance with the instructions furnished,
it will provide you with excellent service. The
equipment is warranted for a period of twelve (12)
months from date of purchase to be free of defects in
material or workmanship.
This warranty does not apply to damage resulting from
improper set up, accident , alteration, abuse, loss of parts or
repair by other than International Light Technologies. The
equipment will be repaired or replaced, at our option,
without charge to the owner for parts or labor incurred in
such repair. This warrant y shall not apply unless the
equipment is returned for our examination with all
transportation charges prepaid to Internationa l Light
Technologies, 10 Technology Drive, Peabody, MA 01960.
International Light Technologies has no other obligation or
liability in connection with said equipment.
代理美国International Light辐照计http://www.testeb.com/yiqi/ilt/zhaoduji.html 深圳市格信达科技 电话18823303057 QQ：2104028976
