8-1
PURGE MODE
The purge mode is used in gas and air purging applications.
8.1 PURGE RANGES
Purge mode will have the following ranges available:
• 0 – 100% VOL Methane (CH
4
) Flammable
• 0 – 25% Oxygen (O
2
) if tted
8.2 PURGE FEATURES
Purge mode has the following features available:
• Pump ON / OFF
• Manual zero
• Backlight
• Flashlight
• Display Invert
8.3 PURGE DISPLAYS
8
During the warm-up period,
all applicable sensors will be
checked and the display will
indicate any sensor faults.
A positive zero fault is indicated
by a flashing gas reading, as
illustrated in Fig. 8.1.
A negative zero fault is indicated
by a spanner alternating with
a zero reading (not illustrated).
alternating with
Fig. 8.1 Sensor Check
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