Hioki DSM-8542, Instruction Manual, Page: 36 / 140

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Ｓ Ｅ Ｌ Ｆ Ｃ Ｈ Ｅ Ｃ Ｋ Ｅ Ｘ Ｅ Ｃ Ｕ Ｔ Ｅ
１ ． Ｍ Ｅ Ｍ Ｏ Ｒ Ｙ Ｃ Ｈ Ｅ Ｃ Ｋ － － － Ｏ Ｋ
２ ． Ａ ／ Ｄ Ｃ Ａ Ｌ ． － － － － － － － Ｏ Ｋ
３ ． Ｒ Ａ Ｎ Ｇ Ｅ Ｃ Ａ Ｌ ． － － － － － Ｏ Ｋ
Ｅ Ｘ Ｅ Ｃ
Fig. 5.4 Self-diagnosis Execute Screen
The function key [F5] will change to EXEC (EXECUTE). Pressing the [F5] EXEC key
starts self-diagnosis.
In a self-diagnosis test, a memory check, as well as self-calibration checks of the A/D
converter and range, are automatically carried out, displaying OK (acceptable) or NG
(not acceptable). Fig. 5.4 shows an “OK” execution result on the Self-diagnosis Execute
screen.
Press the [ENTER] key after finishing self-diagnosis to return to the
measurement screen.
[Notice]
After executing self-diagnosis, if there are any items with [NG], switch on the
POWER again and execute the self-diagnosis one more time. If there are still
items with [NG] even after the power is resumed and a self-diagnosis test is
executed, please contact the nearest HIOKI office for repair.
[Notice]
In addition to a [Self-diagnosis function], this meter has a [Self-calibration
function] which allows users to execute self-calibration checks at preset
intervals. The factory default settings are [Self-calibration function = ON] and
[Self-calibration interval = 60 seconds].
The self-calibration check requires about 2 seconds to complete and during this
interval, not only will the measured values not be displayed, but all controls,
including key operations and communications, will also be stopped for the
self-calibration to be executed. Therefore, when executing an automated
measurement, set the self-calibration function OFF and execute a command
from the interfaces GP-IB or RS-232C ([*CAL?] command or [*TST?] command)
to execute self-calibration, or perform a self-diagnosis test by keying the keys on
the panel periodically.
*[Self-calibration] executes [2. Calibration of A/D converter] and [3. Range
calibration] of [Self-diagnosis]. For details on self-calibration, please refer to
[10.3 Self-calibration Function].