48NDM
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-9445-A Rev.10 P. 8 / 8
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MOVING AVERAGE SAMPLE NUMBER
1) Hold down [M] for 3 seconds* and push [M] to choose [P].
2) Press [UP] and [DOWN] buttons at once. Current setting
value is shown at the right end of the digital indicator,
with ‘A.’ at the left end.
Factory default setting is “4”.
3) Press [UP] or [DOWN] buttons until the indicator shows
the desired value (1, 2, 4, 8 or 16), and press [SET].
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LED BRIGHTNESS ADJUSTMENT
1) Hold down [M] for 3 seconds* and push [M] to choose [P].
2) Press [UP] and [DOWN] buttons at once for two times.
Current setting value is shown on the digital indicator,
with ‘c.’ at the left end. Factory default setting is ‘7,’ the
brightest.
3) Press [UP] or [DOWN] buttons until the indicator shows
the desired setting (1 through 7), and press [SET].
* The [M] button remain activated for 1 minute after it has
been used to choose a indicator LED (programming mode).
During this period, pressing the [M] button briefly is enough
to choose another indicator. After 1 minute, it turns to deac-
tivated state.
CALIBRATION PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
For matching the indication to a receiving instrument or in
case of regular calibration, adjust the output as explained
in the following.
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HOW TO CALIBRATE THE OUTPUT INDICATION
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the power supply on and warm up for
more than 10 minutes.
1) ZERO: Apply 0% input and adjust bargraph and digital
indicator to 0% following the procedure explained in “AD-
JUSTMENT PROCEDURE.”
2) SPAN: Apply 100% input and adjust bargraph and digi-
tal indicator to 100% following the same procedure.
3) Check ZERO adjustment again with 0% input.
4) When ZERO value is changed, repeat the above proce-
dure 1) – 3).
MAINTENANCE
Regular checking procedure is explained below:
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CHECKING
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signal. Check that the bargraph
and digital indicator for the respective input signal remains
within accuracy described in the data sheet. When the bar-
graph and digital indicator are out of tolerance, recalibrate
the unit according to the “CALIBRATION PROCEDURE”
explained earlier.
WIRING INSTRUCTIONS
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SCREW TERMINAL
Torque: 0.6 N·m
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SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable.
Applicable wire size: 0.25 to 1.65 mm
2
(AWG 22 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG.Co.Ltd, Nichifu Co.,ltd
6 (.24) max
3.3 (.13) max
mm (inch)
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protectors for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.
