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The following section describes about different appendices related to the TMS 9250 Torque
Measurement System.
Appendix A – Principle of Telemetry.
Appendix B – Supplement for TMS 9250 SPM Remote SHUNT CAL Option.
Appendix C – Supplement for TMS 9250 SPM Digital Filter Settings.
Appendix D – Supplement for Conversion Table.
Appendix E – Supplement for Power Supply Positioning, Product Grounding, & Cleaning
Instructions.
Appendix F - Setting up the Cables for the Signal Processing Module (SPM).
Appendix G – Manual Supplement for TMS 9250 SPM SQUAREWAVE output Option
6.1
APPENDIX A
Principle of Telemetry
The digital telemetry system consists of a receiver-transmitter module, a caliper-style coupling
module, and a signal processing module.
The receiver-transmitter module is an integral part of the torque sensor and is connected to
the strain gauges and to the epoxy glass annular printed circuit board that contains the
rotating antenna system. Within the receiver-transmitter module, the sensor signals are
amplified, digitized, and are then used to modulate the radio frequency carrier wave that is
detected by the antenna after being transmitted across the air gap by the caliper coupling
module. That same carrier wave is rectified to provide power to drive the strain gauges and
the electronic components in the module, which is managed by a miniature microprocessor.
The caliper coupling module connects to the signal processing module via a Tri-axial cable.
The detector circuitry in the signal processing module recovers the digital measurement data
from the torque sensor and passes it to the second microprocessor for scaling and linear zing.
The third microprocessor provides the drive to the two analog outputs, as well as the standard
digital interfaces and the optional digital interface modules. Extensive facilities are provided in
software for setup and configuration of the complete system.
6.2
APPENDIX B
Manual Supplement for TMS 9250 SPM Remote SHUNT CAL Option
This supplement provides information on the operation and specifications of the TMS 9250
SPM with the Remote SHUNT CAL Option.
Overview
The TMS 9250 SPM with Remote SHUNT CAL option allows the user to remotely activate and
deactivate the SHUNT CAL mode via an external switch and cable.
Setup
The Remote SHUNT CAL option is installed and tested at the factory. A six-pin circular
connector is mounted to the front panel of the SPM box as a connection point for the remote
SHUNT CAL switch. A mating connector is provided so the user can attach a cable between
the SPM and the customer supplied switch.
Rev B
April 2012
© 2012 – Honeywell International Inc. All rights reserved
6. Appendices
TMS 9250 Product User Manual
6. Appendices
008-0738-00
39
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