User's Guide

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Binsfeld Engineering Inc. | 231-334-4383 www.binsfeld.com 869610-9_A2 Pg. 10
2.2.2 LED Indicator
The TX20K has one green indicator LED that is ON solid when it is
operating in any mode other than Standby with no problems detected. In
Standby mode the LED is OFF to conserve battery power.
2.2.2.1 Input Signal Out of Range
When the input (strain gage) signal is detected to be out of range, the
indicator LED flashes five times per second (5Hz).
2.2.2.2 Low Battery Indication
Below approximately 6.0V the TX20K will flash once per second (1Hz
mostly on) its LED indicator and set the Low Battery Warning transmitter
status flag. This indicates a low battery that should be replaced soon.
The TX20K will continue to transmit accurate signal samples until the
battery voltage is below about 4.5V. At this point the LED will flash once
per second (1Hz mostly off), the Low Battery Fault transmitter status flag
will be set and the transmitted samples will have a value of -20010.
2.2.3 Measurement Ranges
The internal amplifier of the TX20K has seven configurable range
settings of 0.2, 0.5, 1, 2, 5, 10, and 20mV/V.
TX20K bridge excitation voltage is 3.0V. The unitless full scale digital
output value for all ranges is ±20,000.