Heath Consultants Gas Delivery Unit (GDUnet) - Manual (Page 21)

INTRODUCTION
1-5
1.3 CALIBRATION LIMITS
1.3.1 Gas Limits
Gas limits for calibration or test are at the discretion of the
customer and are set up via
net. Limits should be
based on the application but must always make allowance for the
gas.
Limits for various types of gases may change calibration test
parameters.
e.g.
Butane requires wider limits than Methane because of increased
gain requirements, thus the same limit cannot be applied to
different calibrations.
1.3.2 Standards
Reference should be made to the manufacturer’s standards
for the instrument and equipment as well as end users’ own
standards. These should all be compatible.
net
net is GMI’s Windows TM based software package that
The net net to test or
calibrate instruments automatically. This allows the user to specify
how instruments will be tested or calibrated and includes gases,
concentrations and pass or fail criteria.
net net’s to the
network.
The installation of the software is detailed in Chapter 2.
The operation of the software is detailed in Chapter 3.