User's Guide

This document is subject to change without prior notification.
Binsfeld Engineering Inc. | 231-334-4383 www.binsfeld.com 869610-9_A2 Pg. 1
Contents
1 System Overview...........................................................3
1.1 TX20K Transmitter...................................................4
1.2 RX20K Receiver ......................................................4
2 Features and Controls ...................................................5
2.1 RX20K Receiver ......................................................6
2.1.1 Connections ......................................................6
2.1.2 LED Indicators...................................................7
2.2 TX20 Transmitter .....................................................9
2.2.1 External Connections ........................................9
2.2.2 LED Indicator...................................................10
2.2.3 Measurement Ranges.....................................10
2.2.4 Internal Shunt Resistors ..................................11
2.2.5 Operating Modes.............................................11
2.2.6 Signal Accuracy...............................................13
2.2.7 Signal to Noise Ratio.......................................14
2.2.8 RF Power Level...............................................14
2.2.9 Power Supply Voltage Measurement ..............14
2.2.10 Power Consumption.....................................15
2.2.11 Battery Life...................................................15
3 Product Safety .............................................................16
4 Installation....................................................................16
4.1 Field Testing ..........................................................17
4.2 Bench Testing........................................................19
5 Communications Protocol............................................19
5.1 General USB Host to RX20K Communications .....19
5.2 RX20K to USB Host Block Messages....................20
5.3 USB Host to RX20K Commands ...........................28
Appendix A: System Specifications....................................36
Appendix B: Calibration Calculations .................................37
Torque on Round Shafts .................................................38
Appendix C: Strain Gage Installation .................................44
Warranty and Service Information.......................................49
FCC Rules Part 15: Computing Devices.............................50