The torque set switch is used to set the torque reference which is used to
compute the % Torque Rise reading. To set the torque reference, proceed
as follows:
Run the engine at it rated speed, loaded at rated power or torque output.
This represents the 100% torque output condition for the engine.
With the engine running at its rated speed and load, press the Torque Set
switch momentarily. The reference torque value is now set to the rated
engine 100% torque and the % Torque Rise display should now read 100.0
(100%). All future measurements will now display the torque on the %
Torque Rise meter as the percentage of the reference torque value. For
example, if the % torque rise meter reads 75.0, this means that the current
actual torque is 75.0% of the reference (or rated) torque.
Printer / Computer Interface:
The Model 2400S horsepower computer is equipped with a RS-232-C
compatible serial interface. This interface can be used to operate a small
serial printer to make “hard copy” printouts of test results. Alternately,
this interface can be used to connect the horsepower computer to a
Windows type personal computer for calibration setup and so that test
results can be saved, printed using the PC’s printer, etc. The horsepower
computer senses which type of device is connected to the serial interface
(printer or computer) and operates the interface accordingly. It is NOT
possible to connect a serial printer and a personal computer to the
horsepower computer at the same time.
The print rate controls (“Report Rate” and/or “Manual Print”) are used to
select which measurements are printed or sent to the personal computer.
These controls are located on the front panel of the unit, above the
Computer Function switch. Your unit may (optionally) be equipped with
a remote manual print switch – which functions the same as the manual
print switch but which may be located remotely from the horsepower
computer.
The Report Rate switch is used to control the rate at which the unit prints
test results. Various automatic rates are available, from one report every
10 seconds up to one report every thirty minutes. There is also a “manual”
position on this switch. In the manual position, the unit only makes a
printout when the manual print switch is pressed (momentarily).
The manual print switch can be used at all settings of the report rate
switch. It is NOT necessary to set the report rate switch to manual in
order to use the manual print switch (or the optional remote print switch)
to trigger a print report.
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