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1
S
1.2
General Description (continued)
It has two internal reference voltages for powering the bridge. The
1.24 Volt reference is used with the 1K Ohm bridge and below
whereas the 2.5 Volt with the 2.5K/5K Ohm bridges and above.
Failure to properly select the excitation voltage can result in the
calibrator drawing excessive current.
(The calibrator provides amplification, common-mode rejection and
controls the LCD Display).
The calibrator is designed for 0.5 to 4.0 mV/V bridge sensitivity
range. A ZERO POT and SPAN POT is provided for calibration.
See Section 4 for more details.
1.3
Features
•
Portable, hand held indicator for bridge type transducers
•
9 Volt battery powered
•
Scalable display with dummy zero
•
Built-in transducer excitation
•
Track/peak modes available
•
Selectable decimal point
•
Low battery indication
•
Blanking overrange
2
ETUP
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