Teledyne 7500ZA - Infrared Gas Analyzer - Manual (Page 63)

NDIR Gas Analyzer Settings and Calibration
Teledyne Analytical Instruments 47
6.3.3 Peak Alarm Setting
When the peak number of times CO concentration exceeds the upper
limit value during measurement reaches the set number, an alarm is provided.
The peak alarm and this setting screen
appear only when an option is added.
1. Press the MODE key while in the
Measurement mode, and the User
mode appears.
2. Using the UP or DOWN keys move
the cursor to “Setting of Peak
Alarm”. Then press ENT.
3. In the “Peak Alarm Setting”
selection screen that appears, point
the cursor to any item you want to set
using the UP or DOWN key. Then
press ENT.
4. Enter numeric values using the UP or
DOWN keys. The setting will be
saved after pressing the ENT key.
Description of Setting Items
Peak Alarm : ON/OFF of peak alarm
Alarm Value : If measuring value exceeds
the set alarm value, a peak
counter increments by 1
time.
Alarm Count : When the alarm value is
exceeded this many times per
hour, the peak count alarm is
activated (closed).
Hysteresis : To prevent possible
chattering when the
measuring value may exceed
the set peak concentration by
only 1 time, the peak count
has an allowance in the
hysteresis width.