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TXP-WTA_Instruction_Manual_(Rev1.3)
9.2.1 Warm Up Timer
The WARMUP timer has a default setting of 60 seconds but may be between 0 – 254 seconds. The primary purpose
of the warmup timer is to allow sensor stabilization after power up.
9.2.2 CAL Purge Timer
The CAL PURGE timer has a default setting of 60 seconds but may be set between 0 – 254 seconds. The primary
purpose is to allow sensor stabilization after a Span calibration (see Section 5.3). A purge interval is needed after the
span calibration, because up-scale readings will linger until the span gas exits the TXP-WTA Sensor Transmitter.
Alarms are inhibited during the CAL PURGE interval.
9.3 System Security
The SYSTEM SECURITY Menu in Figure 8 4 offers two levels of protection.
•
A LOW level allows CAL MODE sensor calibrations but requires the 4-digit Pass Code prior to altering menus.
•
HIGH level locks the entire menu database, plus CAL Mode, until the correct Pass Code is entered.
•
LOW and HIGH security levels always allow viewing of configuration menus, but they may not be modified.
Contact Name is a 12-character ASCII field available for displaying a phone number, or name, of personnel who
manage the Pass Code.
Lost Pass Codes may be recovered by entering the locked security menu and holding the UP key for 5 seconds. The
4-digit code appears near the bottom of the screen.
REV – 1.3
Figure 9-3 – Clock &Calendar / Delay Timer Menu
Figure 9-4 – System Security Menu
[34-2900-0207-4 ]
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