LC2 / LCS2
EM-1357
P. 3 / 3
CHECKING
1) Terminal wiring: Check that all cables are correctly
connected according to the connection diagram.
2) Power input voltage: Check voltage across terminals 7 –
8 with a multimeter.
3) Strain gauge: Check the bridge resistance. The maximum
current supplied to the strain gauge is 65mA.
4) Input: When applying maximum load, check that voltage
across terminals 10 (+) – 11 (–) equals Exc.
×
Strain Gauge
Sensitivity.
5) Output: Check that the load resistance meets the de-
scribed specifications.
ADJUSTMENT PROCEDURE
• LCD Meter
Indicates input in % (0 – 100%).
• Excitation Adj.
The excitation voltage is calibrated at the factory, therefore
will not usually require adjustment, except when used in
combination with a strain gauge of sensitivity other than
described on the specification label.
In that case, adjust to the value calculated by the equation
below:
Excitation [V] = 5 [V]
×
a [mV/V]
b [mV/V]
where
a: Sensitivity described on the specification label
b: User's sensitivity value
Adjustable range is within 2V to 5V with the bridge resist-
ance 350
Ω
.
• Zero Adj. (Tare Adj.)
Max. 80% of input span can be adjusted.
Without any load, adjust the output to 0%.
• Span Adj. (Gain Adjustment)
Max. 100 –␣ 20% of input span can be adjusted.
With the full load, adjust the output to 100%.
MAINTENANCE
Regular calibration procedure is explained below:
■
CALIBRATION
Warm up the unit for at least 10 minutes. Apply 0%, 25%,
50%, 75% and 100% input signals. Check that the output
signal for the respective input signal remains within accu-
racy described in the data sheet. When the output is out of
tolerance, recalibrate the unit according to the "ADJUST-
MENT PROCEDURE" explained above.
Span Adj.
Zero Adj.
Excitation Adj.
LCD Meter
M-SYSTEM WARRANTY
M-System warrants such new M-System product which it manufactures to be free from defects in materials and workmanship during the 36-month period following the date that such
product was originally purchased if such product has been used under normal operating conditions and properly maintained, M-System's sole liability, and purchaser's exclusive remedies,
under this warranty are, at M-System's option, the repair, replacement or refund of the purchase price of any M-System product which is defective under the terms of this warranty. To
submit a claim under this warranty, the purchaser must return, at its expense, the defective M-System product to the below address together with a copy of its original sales invoice.
THIS IS THE ONLY WARRANTY APPLICABLE TO M-SYSTEM PRODUCT AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. M-SYSTEM SHALL HAVE NO LIABILITY FOR CONSEQUENTIAL, INCIDENTAL OR
SPECIAL DAMAGES OF ANY KIND WHATSOEVER.
M-System Co., Ltd., 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN, Phone: (06) 6659-8201, Fax: (06) 6659-8510, E-mail: [email protected]
