7
Maintenance
Guidelines
Process At-a-glance
Supplies and Preparation
Instruction
Guidelines
This chapter provides instruction for manually completing these utilities: bump testing, zeroing, and
calibration. These procedures can also be completed using compatible Industrial Scientific docking stations
and accessories that are supported by iNet Control, DSSAC, or Accessory Software. Elsewhere in this
product manual (Chapter 1), are the definitions and recommended practices for each procedure.
Use these guidelines to prepare for manually completing a zero, calibration, or bump test.
Work in an area known to be nonhazardous.
Use certified Industrial Scientific calibration gas.
Choose calibration gas cylinders that are suitable for the installed sensors and their calibration gas
settings, and for the instrument's process-type setting ("quick" vs. "standard").
When instruments are set to the "quick" process type, one application of gas is permitted. This setting
is usually the choice for applications in which one calibration gas cylinder contains all the required
gases.
When set to the or "standard"
process type, it is often because more than one gas cylinder is required
to calibrate or bump test all the installed sensor types. For example, a cylinder that contains more than
one gas may be suitable for three of the installed sensors while the fourth sensor may require a gas
that is not contained in that cylinder. During the standard process, the instrument will prompt its user for
the application of each gas and, between gases, will allow time for a change of cylinders.
Process At-a-glance
Whether bump testing or calibrating manually, the basic steps are:
Gather the needed supplies.
Prepare the gas cylinder for use.
Access the utility on the instrument.
Connect the calibration cup to the instrument.
Turn on the gas cylinder.