Instruction Manual VGC301A Controller
InstruTech, Inc.
Page 8
2.5 Gases other than Nitrogen / air
WARNING!
Do not attempt to use with gases other than nitrogen (N
2
) or air without referring to correction
factor data tables.
InstruTech gauges and modules are calibrated for direct readout of nitrogen or air. Do not attempt to use with
other gases such as argon (Ar) or carbon dioxide (CO
2
) unless accurate conversion data for N
2
to other gas is
properly used. Refer to sections titled “Using the gauge with different gases”, “Display” and “Analog Output” for
a more complete discussion.
WARNING!
Do not use the convection gauge connected to this device in an explosive atmosphere or in the
presence of flammable gases, vapors or fumes. Do not use this device to measure the pressure of explosive or
combustible gases or gas mixtures. The sensor wire in the gauge normally operates at 125
o
C, but if malfunction
should occur, the wire temperature could exceed the ignition temperature of certain combustible gases and gas
mixture. This could cause an explosion which could result in serious injury or death.