Dräger Pac 7000 Notice D'utilisation page 3

– To finish the bump test press [OK], the [!] icon is removed
from the display and the instrument returns to the measuring
mode.
– If during the bump test within 1 minute no alarm occurs and
the configured bump test concentration was not achieved,
the instrument alarm mode is entered to indicate failure.
The error icon [X] and the notice icon [!] are flashing; error
code 240 is shown upon acknowledgement. "– – –" is shown
instead of the measured value, and the [X] and [!] icons are
lit. In this case the bump test can be repeated or the
instrument can be calibrated.
– The result of the bump test (passed or failed) will be stored
in the data logger (see chapter 6.1).
– The bump test can also be made by an automatic function.
This function can be activated using the PC software
Pac Vision or CC Vision (see chapter 6). If automatic bump
test is activated, the measured gas concentration must be
stable for 5 seconds within the configured tolerance window.
– If the bump test mode was entered by mistake, the
instrument will cancel the bump test within 2 minutes while
the notice icon [!] flashes and there is no gas flow over the
sensor
4.4 During operation
– If the allowable measurement range is exceeded or a
negative drift occurs, the following will appear in the display:
" " (too high concentration) or "
– Alarms are indicated as described in chapter 7.
– Continuous function of the instrument is indicated by the life
signal, which is a beep every 60 seconds, if configured (see
chapter 12.2).
– For measurements according to EN 45544 (CO, H
EN 50104 (O ) the Life Signal must be switched on.
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– To illuminate the display press [+].
4.5 Show peak concentration, TWA and STEL
– During measuring mode press [OK]. The peak concentration
and the peak concentration icon will be shown.
After 10 seconds the display will return to the measuring
screen, or if [OK] is pressed again the TWA concentration
and the TWA icon will be shown. After 10 seconds the
display will return to the measuring screen, or if [OK] is
pressed again the STEL concentration and the STEL icon
will be shown. After 10 seconds the display will return to the
measuring screen, or if [OK] is pressed again the number of
STEL periods and the STEL icon will be shown. After 10
seconds the display will return to the measuring screen.
4.6 Turning the instrument off
– Simultaneously hold both keys for approximately 2 seconds
until "3" appears in the display. Continue to hold both keys
until the countdown is finished. The alarm and LED will be
activated momentarily.
5 Calibration
– Dräger Pac 7000 is equipped with a calibration function. The
instrument will automatically return to the measuring screen
if no key is pressed in the calibration menu for 1 minute
(except in the span calibration menu which will wait for
10 minutes).
– Calibration shall be performed by trained personnel if the
bump test is failed or after specified calibration intervals (see
chapter 12 and European standard EN 50073).
5.1 Enter the password
– To enter the calibration menu press the [+] 3 times within
3 seconds. The instrument beeps twice, quickly. The notice
icon [!] begins to flash.
– Press [+] again. If a password has been set, three zeros
"000" will appear on the display with the first zero flashing.
The password is entered one digit at a time. Change the
value of the flashing digit by pressing [+] and press [OK] to
accept the value. The next digit will now be flashing. Repeat
this process to select the next two values. After the last
acceptance using the [OK] button the password is complete.
Note: the default password is "001".
– If a correct password has been entered or no password has
been set, the display shows the icon for fresh air calibration
flashing.
– Press [OK] to enter the fresh air calibration function or press
[+] to switch over to the span calibration function. After this
the display shows the icon for span calibration flashing.
– Press [OK] to enter the span calibration function or press [+]
again to switch over to the measurement mode.
5.2 Fresh air calibration
– To enter the fresh air calibration function press [OK] after
" (negative drift).
entering the menu while the fresh air calibration icon flashes.
The fresh air calibration icon stops flashing and the indicated
value flashes.
– To finish the fresh air calibration press [OK], the fresh air
calibration icon is removed from the display and the
S) or
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instrument returns to the measuring mode.
– If the fresh air calibration failed a long single beep occurs.
"– – –" is shown instead of the measured value, and the [X]
icon and the fresh air calibration icon are lit. In this case the
fresh air calibration can be repeated or the instrument can be
calibrated.
5.3 Calibration
5.3.1 Automatically Calibration
– With Dräger Bump Test Station "Printer" the unit can be
configured to automatically start a calibration after a failed
bump test without pressing any key.
5.3.2 PC-based Calibration
– For calibration connect the device to a PC using the
connecting cradle or the E-Cal System. Calibration can be
done with installed software Pac Vision or CC Vision. A
calibration "due date" can be set using the operation timer (in
days).
5.3.3 Calibration without PC
– The device is also equipped with an onboard calibration
function. Prepare the calibration cylinder, connect the
cylinder to the calibration adapter, and connect the
calibration adapter to the instrument.
– Call up the menu to access the sensitivity calibration function.
The icon for the fresh air calibration will flash. Use the [+] key
to call up the sensitivity calibration function. The icon for the
sensitivity calibration will flash. Use the [OK] key to call up the
configured calibration concentration.
– It is possible to use this adjusted calibration concentration or
to change it to be in line with the concentration of the gas
cylinder.
– To change the adjusted calibration concentration press [+].
The first digit flashes. Change the value of the flashing digit
by pressing [+] and press [OK] to accept the value. The next
digit will now be flashing. Repeat this process to select the
next three values. After the last acceptance using the [OK]
button the calibration concentration is complete.
– Open the regulator valve to let calibration gas flow over the
sensor (flow: 0.5 l/min).
– Press [OK] to start the calibration. The concentration
flashes. When the indicated value shows a stable
concentration press [OK].
– If the calibration is successful a short double beep occurs
and the instrument returns to the measuring mode.
– If the calibration failed a long single beep occurs.
"– – –" is shown instead of the measured value, and the [X]
icon and the span calibration icon are lit. In this case the
calibration can be repeated.
5.4 Adjustment of the password
– For adjustment of the password connect the device to a PC
using the connecting cradle or the
E-Cal System. The password can be adjusted with installed
software Pac Vision or CC Vision.
Note: If the passowrd is set to "000", this means no password
is set.
6 Maintenance and Configuration
WARNING
Substitution of components may impair intrinsic safety. To
prevent ignition of flammable or combustible atmospheres,
and to avoid compromising intrinsic safety of the equipment,
read, understand, and adhere to the maintenance
procedures below.
Take care when changing the battery/sensors not to damage
or short out components, and do not use sharp tools to
remove the battery/sensors
WARNING
Whenever the Pac 7000 is opened, a bump test and/or a
calibration must be performed afterwards. This includes each
battery replacement as well as each sensor replacement in
the Pac 7000. Non-compliance will mean that the proper
functioning of the device cannot be guaranteed which may
impair the accuracy of the measurements.
– The device does not need any special maintenance.
– For individual configuration or individual calibration connect
the device to a PC using the connecting cradle or the E-Cal
System. Configuration and calibration can be done with
installed software Pac Vision or CC Vision. Strictly follow the
instructions for use of the modules and software in use.
6.1 Data logger
– Dräger Pac 7000 is equipped with a data logger. The data
logger stores events and the peak concentration measured
during during a variable interval adjustable with Pac Vision or
CC Vision. The data logger runs about 5 days in a 1 minute
intervall. If the memory of the data logger is filled the data
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