Thermo Scientific 1160, Инструкция по эксплуатации

Страница: 28 / 52

Chapter 3 Operation
3-6
POWER-UP SEQUENCE
Turn the instrument on with the rocker switch on the front panel. The compressor (if
installed) will not start immediately and the digital gauge on the front panel should
display zero output pressure. This is normal start-up operation, since the compressor
remains inactive until the catalytic reactor reaches 90 percent of its set point temperature.
Depress the converter temperature button and verify that the reactor temperature is
increasing. Once the catalytic reactor is within 10 percent of the set-point temperature,
the compressor should start and the digital meter on the front panel should display the
output pressure.
Adjust the pressure as required (most applications require between 25 to 50 psi). The
correct pressure setting depends upon the instrument being supplied. For example to
supply zero air to a Thermo Scientific Model 55, the pressure on the Model 1160 should
be set at 45 psi. To supply air to the Thermo Scientific Model 146 calibrator the 1160
regulator could be set to any pressure between 35 and 50 psi. If the requirements for the
instrument being supplied are not specified, it is recommended that the output pressure be
set at 45 psi.
To be certain of maximum converter efficiency, wait until the “Converter Ready” light on
the front panel turns green before using zero air from the instrument.