RKI Instruments GX-8000(H4-0050) - Manual (Page 14)

3 Span Adjustment 3-1. Preparation for span adjustment
GX-8000 - 14 -
3
Span Adjustment
3-1. Preparation for span adjustment
Required equipment/material
• Zero adjustment gas for high-concentration combustible gases (collected in a gas sampling bag)
• Span adjustment gas (collected in a gas sampling bag)
• Stopwatch
Connection
Connect the equipment as shown below to perform the span adjustment.
Gas
sampling
bag
Gas sampling probe
(with a tube)
GX-8000
main unit
GAS IN
GAS OUT
(Open)
WARNING
About the span adjustment gas
The span adjustment gas is a hazardous gas (toxic, oxygen deficient, etc.). Handle the gas and
related jigs and tools with due care (e.g., the gas must not be inhaled or the gas sampling bag must
not have any hole).
About the place for span adjustment
• Perform span adjustment where no silicon, organic solvent, spray can gases, etc. are used.
• Perform span adjustment indoors at normal temperature without remarkable fluctuation (within ±5°C).
• Perform span adjustment in an exhaust booth.
CAUTION
The GAS OUT side of the pipe must be left open without any pipe connected. A supplied gas must be
discharged to a safe place.