QRAE II
User’s Guide
Page 74
5.
After you have set all of the span values, hold [MODE] for 3 seconds and release.
Save is highlighted.
6.
Press [Y/+] to save your settings, or [MODE] to advance to Quit (without saving
settings).
If you choose to quit without saving the changes, press [Y/+]. You will see this message:
Not Saved!
If you want to make further changes to the settings, press [MODE] to repeat stepping
through the sensors.
Change LEL Span Gas.
This function allows selection of the gas to be used for span
calibration of the LEL sensor. The correction for the measurement gas is automatically
divided by the correction factor the span gas, selected previously, to obtain a new factor
for the combination of gases. The new factor is applied to the readings to obtain a true
concentration.
1.
Press [MODE] until the up or down arrow is highlighted.
2.
Press [Y/+] to move through the list of LEL span gases.
3.
Press [MODE] to select either the other arrow or to advance to Save or Quit.
4.
With Save selected, press [Y/+] to save your settings, or [MODE] to advance to
Quit (without saving settings).
If you choose to quit without saving the changes, press [Y/+]. You will see this message:
Not Saved!
If you want to make further changes to the settings, press [MODE] to repeat stepping
through the choices.
Back.
Press [MODE] to return to the top of the Calibrate Monitor menu, or press [Y/+] to
return to the top of the Normal Mode menu.
Change Alarm Limits
The high and low alarm limits, as well as the points at which the STEL and TWA alarms
are triggered, can be modified in this set of menus. Each sensor’s limits for each of these
can be set separately, providing extremely precise alarm thresholds.
Alarm Signals.
During each measurement period, the gas concentration is compared
with the programmed alarm limits (gas concentration alarm limit settings: Low, High,
TWA and STEL). If the concentration exceeds any of the preset limits, the loud buzzer,
red flashing LED, and vibration alarm are activated immediately to warn of the alarm
condition. In addition, the QRAE II alarms if one of the following conditions occurs:
battery voltage falls below a preset voltage level, or when the datalog memory is full.
When the low battery alarm occurs, there will be approximately 20 to 30 minutes of
Содержание QRAE II
Страница 2: ...Copyright 2011 RAE Systems Inc...
Страница 35: ...QRAE II User Guide Page 33 The following diagram shows the navigation of this set of submenus...
Страница 39: ...QRAE II User Guide Page 37...
Страница 42: ...QRAE II User Guide Page 40 The diagram below shows the difference between the two startup modes...
Страница 47: ...QRAE II User Guide Page 45 5 Alarm Signal Summary Note Backlight automatically turns on when QRAE II alarms...
Страница 63: ...QRAE II User Guide Page 61 4 Push the screws from the back of the monitor to pop the cover off the front...
Страница 72: ...QRAE II User s Guide Page 70 poisons and contaminants Range Resolution Response Time LEL 0 100 1 15 sec...
Страница 91: ...QRAE II User s Guide Page 89 Alarm Signal Summary Note Backlight automatically turns on when QRAE II alarms...
Страница 92: ...P N 020 4100 000 Rev F May 2013...
