6
Bump Testing And Calibration
RAE Systems recommends that a bump test be performed on the QRAE II before the monitor is put into service,
and later, prior to each use. A bump test is defined as a brief exposure of the monitor to the calibration gas and
the sensors to show response and trigger the lowest alarm set point for each sensor.
•
The QRAE II Multi Gas detector must be calibrated if it does not pass a Bump Test, or at least once
every 180 days, depending on use and sensor exposure to poisons and contaminants.
•
Calibration intervals and bump test procedures may vary due to national legislation.
•
When using an H
2
S sensor in a QRAE II, RAE Systems recommends using RAE calibration gas
cylinders with a 4 gas mix containing 10 ppm H
2
S, 50 ppm CO, 50% LEL Methane, and 18% Oxygen.
Important!
Make sure you have the correct calibration gas in the correct concentration. Also make sure that the
calibration gas is not beyond its “Best when used by” date, which is stamped on the cylinder’s label.
The following diagram shows Programming Mode’s five submenus and how to navigate through them.
Note:
Press [MODE] to navigate from one menu choice to the next and [Y/+] to make selections.
1.
If the QRAE II is off, turn it on (hold down [MODE] for 2 seconds).
2.
After startup, press and hold both keys.
3.
Press the [MODE] key to advance to OK.
4.
Press [Y/+]. The QRAE II is now in Programming Mode’s Calibrate Monitor submenu.
Note:
Refer to the QRAE II User’s Guide for information on password-protected QRAE IIs.
Summary of Contents for QRAE II
Page 9: ...7 Refer to Navigating The Calibration Submenus on page 8...
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