3-3
(These functions are available when the dip switches for the wire disconnection check
and wire length adjustment are set to ON.)
When there is neither wire disconnection nor a short, and indication of Good is indicated
on the digital monitor
③
, and then the wire length adjustment (indication of the rate of
damping) and auto-balancing are performed. If there is a wire disconnection or short, the
examination results are indicated on the digital monitor
③
repeatedly. The contents to be
indicated are listed on the pages from 3-6 to 3-7. Following the indicated results (page 3-7),
repair the cable or bridge. After the repair, press BAL again for at least five seconds to check
for failures.
The wire length adjustment automatically calculates the voltage drop occurring in the
cable connecting between the AS amplifier and measurement point (bridge), saving this
calculation data into the internal memory. The power supply to the bridge is provided after this
adjustment. As a result, high-accuracy strain measurement is available without considering the
conductor resistance generated by the cable.
After the wire length adjustment is made, the initial balance is made, and then the green
LED in the middle comes on. For further fine-tuning, turn the BAL knob
④
clockwise or
anti-clockwise. The adjustment range is an output of
1 V.
* The wire length adjustment data is stored in the internal memory until the BAL switch is
pressed, even if the power switch
⑲
is turned on or off. The wire length function is set
to off or non-adjustment by the dip switch on the bottom face of the AS amplifier.
* For more information on wire disconnection function and wire length adjustment, see
the pages 3-6 to 3-8.
(7) In response to the magnitude of the strains anticipated, apply a calibration value using the
calibration setting knob
⑫
first, and then start measuring.
The measuring range can be checked after applying a calibration value using the
calibration value application switch
⑭
. The measuring ranges for AS amplifiers are described
on page 3-4 for AS2503 and page 3-5 for AS2603.
Summary of Contents for AS2503
Page 1: ...AS2503 AS2603 DC BRIDGE SYSTEM DYNAMIC STRAIN AMPLIFIERS INSTRUCTION MANUAL 1WMPD4003356 ...
Page 2: ......
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Page 83: ...9 5 9 3 External Dimensions 9 3 1 Amplifier Unit AS2503 ...
Page 84: ...9 6 9 3 2 Amplifier Unit AS2603 ...
Page 85: ...9 7 9 3 3 Panel Cut Sizes ...
Page 87: ...9 9 9 3 5 Rack mount Case Rack Rail Elongate Hole ...