4
6 Maintenance and Configuration
– The device does not need any special maintenance.
– To perform individual configuration or individual calibration,
connect the Dräger Pac 7000 to a PC using the
communication module or the E-Cal System.
Calibration and configuration can be done with the installed
CC-Vision software. 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 average concentration recorded
during a variable interval that can be adjusted with Gas-Vision
or CC-Vision. The data logger has a capacity of about five
days if a one-minute interval has been set. If the memory of
the data logger becomes full, the data logger will overwrite the
oldest stored data.
–
To adjust the average concentration to be stored or to
download the stored data, connect the device to a PC using
the communication module (83 18 587) or the E-Cal System.
The stored data can be downloaded with the installed Gas-
Vision or CC-Vision software.
6.2 Adjustable operation timer (in days)
– The device is equipped with an adjustable operation timer.
The operation timer can be used to set an individually
operation period e. g. to adjust a "calibration due date", an
"inspection due date", an "out of order date", a “usable life
alarm” etc.
– To adjust the operation timer connect the device to a PC
using the connecting cradle or the E-Cal System. The
adjustment can be done with installed CC-Vision software.
6.3 Usable life alarm/end of operation period
– A useable life alarm can be adjusted using the adjustable
operation timer (see chapter 6.2).
– If an operation period is set a warning period begins before
the end of the installed operation period.
– During this period the remaining life time flashes just after
turning the instrument on, e. g. "30"/"d".
– This alarm occurs at 10 % of the set operation period or at
least 30 days before end of the operation period.
– To acknowledge this message [OK] must be pressed. After
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.
that, the instrument can be used further.
– After the usable operation period has expired, the text "0" /
"d" will alternate in the display and cannot be acknowledged.
The instrument will not longer measure.
6.4 Measurement of % COHB
– Dräger Pac 7000 CO-version is equipped with a measuring
mode to measure % HBCO in exhaled air. The exhaled CO
provides a convenient and reliable concentration value to
measure the carboxyhemoglobin (COHB) content of the
blood.
–
To activate this function, connect the Dräger Pac 7000 to a PC
using the communication module or the E-Cal System. The
adjustment can be done with the installed CC-Vision software.
– After activation of this function the display alternates
between "HB" and a concentration. The concentration will be
indicated in the unit of % COHB.
– For the measurement connect the device to the calibration
adapter and connect a mouth piece (Dräger order code:
68 05 703) to the calibration adapter.
– Blow into the mouth piece for approximately 20 seconds.
– Wait for the highest indication in the display.
– During calibration and bump test, the instrument reverts back
to the regular ppm CO mode and returns to COHB mode
once finished.
– There are no gas alarms and no TWA/STEL measurements
available in COHB mode.
7Alarms
7.1 Concentration Pre/Main Alarms
– The alarm will activate whenever the alarm thresholds A1 or
A2 are exceeded.
– The instrument is equipped with a vibrating alarm. It vibrates
in parallel to these alarms.
– During an A1, the LED will blink and the alarm will sound.
– During an A2, the LED and alarm tone will repeat in a double
repeating pattern.
– The display will alternate between the measurement value
and "A1" or "A2".
– When the TWA A1 alarm is activated, the TWA icon flashes
in addition to the audible, optical and vibrating alarm.
– When the STEL A2 alarm is activated, the STEL icon flashes
in addition to the audible, optical and vibrating alarm.
– The alarms may, according to the selected configuration, be
acknowledged or turned off (see chapter 12.2).
"Acknowledgeable": alarm tone and vibration can be
acknowledged by pressing [OK].
– "Latching": The alarm will only deactivate when the
concentration falls under the alarm threshold and then [OK]
is pressed.
– If the alarm is not latching, the alarm will deactivate as soon
as the concentration falls under the alarm threshold.
Notice
The Dräger Pac 7000 is not medically approved.
DANGER
If the main alarm activates, leave the area immediatly,
because there may be a danger to life. A main alarm is self-
latching and cannot be acknowledged or cancelled.
7.2 Battery pre/main alarms
– When the battery pre-alarm is activated, the audible alarm
sounds and the LED blinks, and the "low battery" icon " "
flashes.
– To acknowledge the pre-alarm, push [OK].
– After the first battery pre-alarm, the battery will last from
1 hour to 1 week depending on temperature:
> 10 °C = 1 week of run time
0 °C to 10 °C = 1 day of runtime
< 0 °C = 2 hours of runtime
– When the battery main alarm is activated, the audible alarm
sounds in a repeating pattern of 2 repeating tones and the
LED blinks in the same pattern.
– The battery main alarm is not acknowledgeable; the
instrument will automatically turn off after approx.
10 seconds.
– In case of a very low battery, the internal voltage monitor
could activate the LED’s.
8 Changing the battery
– The instrument contains a replaceable lithium battery.
– The battery is part of the Ex approval.
– Only the following battery types shall be used:
Duracell 123 Photo, Lithium, 3 V
Duracell 123 Ultra, Lithium, 3 V
Energizer EL 123, Lithium, 3 V
Energizer EL123A, Lithium, 3 V
Panasonic CR123A, Lithium, 3 V
Varta Powerone CR123A, Lithium, 3 V
– Turn the instrument off.
– Unscrew the 4 screws from the back case.
– Open the front case and remove the depleted battery.
– Press and hold [OK] for approx. 3 seconds while battery is
not installed.
– Insert the new battery according to specified polarity (+/–).
– Place front case back and fasten it by tightening the 4 screws
of the back case.
– After changing the battery a sensor warm up time is needed
(see chapter 12.3). The gas value flashes until the warm up
time has passed.
WARNING
Danger of explosion! Do not change the battery in explosion-
hazard areas.
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 not to damage or short
out components, and do not use sharp tools to remove the
battery.
WARNING
Danger of explosion!
Do not throw used batteries into fire or try to open them by
force.
Dispose of the batteries in accordance with local regulations.
Spent batteries may be returned to Dräger for disposal.
