Industrial Scientific TANGO TX2, Руководство по эксплуатации продукта

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Administrative features
Use administrative features to set readability aspects of the worker’s display screen , along with security,
support for data-log integrity, and other general features.
Table 4.1 Administrative features and related settings
Feature Related settings
Determine the gas-reading format a worker will see on the display screen.
With numeric format, the worker to see the reading and with text, a notation
(e.g. OK).
Display style (numeric or text)
Language
Deadband
Use a valid security code to restrict worker access to settings mode, guarding
against unintended changes to instrument settings. A security code also
supports always-on functionality.
Prevent (or permit) worker ability to power off the instrument when it is in
alarm.
Security code
Always on
Shutdown in alarm
For in-field confidence a worker is instrument equipped, make use of the
visual-audible indicator. Confidence indicator
Support data-log accuracy with correct date and time settings. Date
Time
Gas-alarm features
Set the gas-concentration readings that will cause gas alerts, warnings, and alarms. Optionally use features
to latch instrument alarms and set functionality for TWA and STEL.
Table 4.2 Gas-alarm features and related settings
Feature Related settings
Set the minimum gas-concentration reading required to signal workers of
these alarms:
•
low-alarm gas event
•
high-alarm gas event
Alternately, set low-alarm and high-alarm values based on country or
world region. Note: Because these alarms can be edited separately and
through the country-of-origin, the instrument applies this over-ride: the
last saved setting over-rides previous settings.
Low-alarm gas setting
High-alarm gas setting
Alternately, Country of origin
Use (or don’t use) the optional gas-alert feature.
If used, set the minimum gas-concentration reading required to alert
the worker of readings that may be approaching alarm level.
Gas alert feature
Gas alert setting
Use (or don’t use) the instrument’s optional STEL and TWA features.
If used, set the minimum sum of gas required to alarm the worker.
TWA and STEL multi-option
STEL alarm setting
TWA alarm setting
Use the optional alarm latch to sustain alarm signals until they are
manually turned off by the worker.
Alarm latch