New Cosmos Electric KD-12B, Instruction Manual

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
Span Rough Adjustment

Perform span rough adjustment if or is displayed.
(1)
Apply calibration gas corresponding to the equipment.
(2)
Sufficiently stabilize the gas.
(3) While in gas monitor mode, press the MODE switch of the main unit first. Then press the
UP switch with the magnetic stick within approximately 2 seconds.
(4) The main unit displays first, and displays .
(The product is ready to work but nothing has been operated.)
Example: After zero adjustment, will be displayed.
(5)
Press the UP or DOWN switch of the main unit with the magnetic stick and adjust the value
to .
(6) Press the ENTER switch of the main unit.
(7)
The main unit displays first, and displays the present gas concentration.
(8)
Press the UP or DOWN switch of the main unit with the magnetic stick, and adjust the
display of the main unit close to the actual span gas concentration.
(9)
Press the ENTER switch.
(10)
The span rough adjustment is completed when is displayed.
(11)
On completion of the span rough adjustment, the product will automatically return to gas
monitor mode.
(12) Remove the gasbag.
MEMO
Precise adjustment is not performed only by span rough adjustment. Perform span
fine-tuning after span rough adjustment.

If an error is displayed, refer to 10. Trouble Alarm .

Carefully handle and make settings with the magnetic stick because the magnet is very
powerful. For details, refer to 3 . Contents of Package .
CAUTION
 The external contact may operate during span rough adjustment.
Before performing span rough adjustment, set the product to maintenance mode or
release the interlocks of the external devices if needed.
 Only New Cosmos Electric Co., Ltd. maintenance service members or personnel who
have completed a maintenance seminar can perform span rough adjustment.