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www.etorque.com
Page 37
The Multiplexer is an optional accessory for the PTT. It allows users to connect 1-4 transducers to the Torque Analyzer
simultaneously. The device eliminates the need to plug and unplug transducers. The PTT powers the Multiplexer so no
additional power source is required.
Note:
Starting April 2007, PTT models can be used with this Multiplexer.
Mountz PTT units with serial numbers that start with digits "07" and later feature a new firmware and hardware. Only
models with serial numbers 07-01-001 or later can operate with the Bar Code Reader of Multiplexer. Prior PTT versions
cannot support the Bar Code Reader and Multiplexer. Firmware and revision data can be seen on initial power on of unit.
Customers with older PTT versions, can send their unit to our service department and pay for it to be upgraded to
operate with the Multiplexer.
M u l t i p l e x e r ( A c c e s s o r y I t e m )
Model: Multiplexer
Item # 072998
Operation with the Multiplexer (Mux)
When the Analyzer is connected to the Multiplexer and powered on it reviews the Multiplexer (Mux) to determine what
transducers are connected and downloads the identity and calibration data for each of the attached transducers.
The "Soft" key on the right hand side will indicate the currently selected Mux port such as Mux 1, Mux 2 etc. In addition,
an LED on the right side of the transducer connection to the Mux will light-up indicating which transducer is currently
selected.
Selecting Transducer Manually
1. Press the Mux "Soft" key and it will provide a list of currently connected Transducers.
2. The user can scroll through the list transducers and press Enter to select a model.
Selecting a Transducer Automatically
An automatic transducer selection is available.
1. A Tool Test is entered that includes one of the transducers connected to the Mux and this Tool Test is sent to the
Analyzer.
2. Now when the Tool Test is selected on the PTT, the analyzer automatically connects to the required Transducer using
the Mux. This reduces operator error of accidentally selecting the wrong transducer for a tool test.
The Multiplexer can be used with the optional Bar Code Reader. A more complete description of the Bar Code Reader is
on page 36. This combination provides a flexible, time saving solution that reduces the potential for operator error. For
users that have many Tool Tests and using multiple torque transducers, these two accessories is the ideal solution for
torque testing.
Example of using the Bar Code Reader and Multiplexer.
The user enters a Tool Test that includes one of the Transducers connected to the Mux. In addition they enter the Serial
Number of the Tool to be tested. This Serial Number is bar coded on the Tool to be tested. This Tool Test is downloaded
to the Analyzer. Now when the Bar Code of the Tool is scanned the Analyzer automatically selects the correct transducer
by using the Mux and starts the appropriate Tool Test.
Note:
When calibrating
Transducers, perform this opera-
tion with the Transducer connect-
ed directly to the PTT and not con-
nected through the Multiplexer.
