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HUGO SACHS ELEKTRONIK - HARVARD
A P P A R A T U S
GmbH D-79232 March-Hugstetten Germany
HSE PLUGSYS
®
TAM-A Type 705/1 and TAM-D Type 705/2
Back to our example with a range up to 200mmHg.
The TAM amplifier has an output voltage of +- 10V.
0% deflection is equal to 0V, 100% deflection on the bargraph is equal to 10V.
If we now intend to measure up to 200mmHg we have to set the GAIN so that we reach
10V (100%) for 200mmHg or 5V (50%) for 100mmHg.
•
set switch CAL/OFF/MEASURE in MEASURE position
•
apply a pressure of 100mmHg with your pressure calibrator to your transducer
•
check if everything is thight so that the pressure remains stable and constant
•
now look to the bargraph and check the deflection
•
adjust the GAIN trimmer on the front panel with the little red screwdriver, which was
delivered with the system
•
adjust GAIN so that you get 5V (50% bargraph deflection) for 100mmHg. The output
delivers the voltage of 5V.
•
remove pressure from your transducer, you should get 0V on the output
•
again give 100mmHg to the transducer, you should receive 5V on the output
•
if this is the case all is set well. If not readjust.
In order to avoid performing a full calibration of the output to your DAQ system daily, you
can set the module so that it simulates a value of 100mmHg in position CAL.
•
Set switch CAL/OFF/MEASURE into CAL position. This simulates a pressure on the
bargraph and on the analog outputs of the module.
•
Take the little red screwdriver and turn on the CAL trimmer (not on the GAIN !) so
that you get +5V (50% bargraph deflection) which is equal to 100mmHg.
Now all settings are done and you can switch back the module to MEASURE position and
start your measurements.
