V1.5 1/03
4
Tech Support Hotlines
781-890-7440 ext. 200
www.extech.com
Temperature Calibration (Source)
NOTE:
When calibrating temperatures over 199.9º you must change the resolution to
the 1º scale or the meter will display "
OL
"
1.
Connect a thermocouple cable (Type J for Model 43211 or Type K for Model
43212) to output 1 or 2 at the top of the meter. These jacks have the same signal
available on both output 1 and output 2 terminals.
2.
Connect the other end of the thermocouple cable to the instrument(s) to be
calibrated.
3.
Using the range switch, coarse and fine adjustment knobs set the meter to the
desired output. See explanation below.
How to use the Range Switch and Coarse/Fine Adjustments
In addition to the T1, T2, and OFF positions, the Rotary switch has 7 output range positions
that move low to high (left to right) underneath the words Calibrator Output on the front panel
(also designated by the white strip over the Rotary switch).
1.
Use the Rotary switch to find the closest range of the desired temperature output
2.
Note that the meter outputs a mV signal corresponding to the temperature display
which can be routed to a panel meter, recorder, datalogger, controller, another
calibrator, etc.
3.
Adjust the Coarse knob to dial in even closer to the desired output temperature
4.
Finally, adjust the Fine knob for the exact temperature output
Maintenance
Cleaning and Storage
Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or
solvents. If the meter is not to be used for periods of longer than 60 days, remove the
battery and store it separately
Battery and Fuse replacement
1.
Remove the protective rubber holster from the meter
2.
The battery cover is held in place by two Philips head screws, both screws must be
removed in order to remove battery cover.
3.
Remove and replace the 9V battery.
4.
Replace compartment cover, screws and rubber holster.
Repair and Calibration Services
Extech offers complete repair and calibration services
for all of the products we sell. For
periodic calibration, NIST certification or repair of any Extech product, call customer service
for details on services available. Extech recommends that calibration be performed on an
annual basis to ensure calibration integrity.
Copyright
©
2000 Extech Instruments Corporation. All rights reserved
including the right of reproduction in whole or in part in any form.
