5
The optional advanced setup mode allows a supervisor through password
control to “blank out” or disable unwanted T/C types so that only the proper
T/C types can be selected. The following procedure outlines how this is
done:
1. Hold down the
TC TYPE
key at power up.
2. The word
PASS
will be displayed and you need to introduce the
password 123 as follows:
Rotate the knob to 1, press
SET
key, rotate to 2, press
SET
, rotate to 3,
press SET.
3. You can toggle through all the thermocouple types by pressing
TC TYPE
key.
4. Press
SET
key for the ones that you want to keep.
5. The last TC type is mV. By pressing
TC TYPE
key again, you’ll exit from
this mode and return to normal operation.
6. If you missed one, repeat the entire procedure again.
4. Operating Procedure
1. Turn on power and select the desired thermocouple type by depressing the
T/C Select key. Once the desired T/C is selected, it will remain in memory
until a new T/C type is selected.
2. Select either Input or Output mode depending on whether you want to read
a thermocouple or simulate a thermocouple signal.
3. Connect the appropriate thermocouple to the mini-connector or screw
terminals on the top of the CL300A.
Note
: for best accuracy, allow 3 to 5
minutes for the T/C connector (or wire) to stabilize to the same temperature
as the
connector block.
4. If you are using the CL300A in the output mode use the cursor control keys
to select the decade to be controlled. Note that the cursor is the line under
a specific digit.