Oldham AirAware - Set Cal Gas Concentration

AirAware
15
Set Cal Gas Concentration
Although factory set (see below) the calibration gas value can be user
adjusted. When in this mode, the display scrolls the message "CAL GAS
XXXX YYY ZZZ" until either of the internal or buttons are pressed to
alter the setting, or until a 3 minute timer expires, at which time the setup
modes are aborted and the unit returns to normal gas readings. If the or
buttons are pressed during this time, the display reverts to XXXX which
indicates the newly selected value. Five seconds after the last or
keystroke the scrolling message commences with the newly selected setting.
XXXX
indicates the gas value.
YYY
indicates the unit (ppm for toxics, %VOL for oxygen).
ZZZ
indicates the gas type.
Standard AirAware Calibration Settings
CO - 100 ppm
Cl2 - 10 ppm
HCl - 10 ppm
H2S - 25 ppm
NH3 - 25 ppm
NO - 25 ppm
NO2 - 5 ppm
O2 – 20.9%
SO2 - 5 ppm
ModBus Address
Although factory set to the last 3 digits of the instrument serial number, the
ModBus address can be user adjusted. When in this mode, the display shows
the current address until either of the internal or buttons are pressed to
alter the setting, or until a 3 minute timer expires, at which time the setup
modes are aborted and the unit returns to normal gas readings. If the or
buttons are pressed during this time, the display reverts to XXXX which
indicates the newly selected value. Five seconds after the last or
keystroke the scrolling message commences with the newly selected setting.