Info Mode And Function Key; Button Function - Dräger Polytron 8900 UGLD Notice D'utilisation

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en Calibration
6.5

Info mode and function key

6.5.1 Activating info mode
The Info mode is used to show instrument relevant
information. This does not interrupt the normal operation of
the instrument.
● Tap and hold for 3 seconds in measuring mode.
6.5.2 Info mode navigation

Button Function

Switches to the next screen
Switches to the previous screen
M
Ends info mode
OK
If no key is tapped within 30 seconds, the instrument will
automatically return to normal operation.
6.5.3 Using function key
Using the function key, a pre-set function can be executed. By
default the faults are displayed.
● Tap and hold for 1 seconds in measuring mode.
To configure the function key, see 10.6 Configuring function
key.
6.6 Menu
6.6.1 Menu navigation
Button Function
Scrolls upwards.
Sets values.
Scrolls downwards.
M
Sets values.
Confirms entry.
OK
Selects menus and functions.
6.6.2 Passwords
Calibration Access to information (Information menu)
PWD and calibration settings (Calibration
menu)
Default: _ _ _ 1
Settings PWD Access to all configurations and menus
Default: _ _ _ 2
To change passwords, see 10.3.
6.6.3 Entering the menu
● To directly enter the Information menu:
a. Tap and hold for 1 second in the measuring mode.
M
● To enter the Calibration menu:
a. Tap and hold for 3 seconds in measuring mode
M
b. Select Enter password
c. Enter Calibration PWD.
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● To enter all menus:
a. Tap and hold for 3 seconds in measuring mode
M
b. Select Enter password
c. Enter Settings PWD
6.6.4 Displaying Information
Select the appropriate menu item in the Information menu:
Instrument
Warnings Displays warning messages in plain text
and the corresponding number.
If there are several warning messages
available, there is an indicator (e.g. 1/3 =
Screen 1 of 3).
Faults displays fault messages in plain text and
the corresponding number
If there are several faults, there is an indica-
tor (e.g. 1/3 = Screen 1 of 3).
Device flag This function displays warning and fault
codes as a table. If all codes are 00 there
are no warning or fault messages available.
Modules Displays an overview of the installed hard-
ware modules. To access detailed informa-
tion select the appropriate module.
= installed modules
= not installed modules
Sensor
Last cal. The calibration date, unit, gas and concen-
date tration of the last calibration are displayed.
Next cal. Displays the next calibration due date.
date
Sensor The current and the highest sensor tem-
tempera- perature is displayed.
ture
Data logger
Logger Display the data-logger status (active or
status non-active)
Graph Displays the history of the past 15 minutes
on a time/concentration graph.
7 Calibration
Obey the safety statements mentioned in 1 Safety-related
information!
A bump test (calibration check) and adjustment of the
measurement accuracy can be performed with the Dräger
Polytron 8900 UGLD Calibration Kit. Only the sensor span
should be calibrated if the bump test result is out of spec.
Severe ambient conditions or physical impacts to the sensor
may cause sensor drifts. Sensor drifts have a negative impact
on the measurement accuracy. Calibrations restore this
accuracy.
Dräger ultrasonic sensors are life-time calibrated. Under
normal conditions sensor drifts should not occur and a
recalibration should not be necessary.
Instructions for use
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Dräger Polytron 8900 UGLD