Sartorius Sartorius SWC User manual

Installation, Service and Operating Instructions
Sartorius SWC Safety Weighing Cabinets
Models SWC900, 900T, 1200 and 1200T

2
Contents
Sartorius SWC Safety Weighing Cabinets 1
Contents 2
Intended Use 3
Warning and Safety Instruction 4
Unpacking 5
General Operating Principles 6
Description of the Safety Weighing Cabinet 6
General Installation Procedures 7
Air Handing Requirements 7
Cabinet and Fan Unit Dimensions 8
System Assembly 9
Fan Filtration System 10
System Specifications 10
Fan Filtration System 11
Cleaning Procedure 12
Maintenance Program 13
Safe Change Procedure for Bag-out Hepa Filters 14
Flow Alarm 18
System Overview 17
Alarm Assembly & Connection 18
Start up Procedure 17
Alarm Operation 19
Alarm Calibration 19
Set Date and Time 19
Set Up Sensors 19
Date and Time 19
Downloading Data From Alarm Logger 20
Downloading data to PC 20
Data logging Software Report 20
Balance Settings for use in Cabinet 20
Spares & Accessories 22
Certifications 23

3
Intended Use
The Sartorius SWC safety weighing cabinet is designed to provide a safe weighing and small scale sample handling environment
protecting users from exposure to airborne contaminants known to be present during these operations.
The system has been tested in accordance to ISPE guidelines (Institute of Pharmaceutical Engineers) and has a recognised control
performance for the handling of Active or Potent Pharmaceutical compounds.
Standard features on this range of instruments include:
Recessed Granite Base (Black)
Independent Fan Extraction System
Safe Change Bag-out Filter
Dual Sensor Alarm
Airflow Datalogging function
Waste Disposal Chute
Lamp and 4 way Power Distribution Block
Air Flow Smoke Test Kit
Anti Static Decontamination Wipes

4
Warning and Safety Instruction
Read this instruction manual
thoroughly and train all operators
before attempting to place this unit
into service. It is the customer’s
responsibility to understand the proper
function and operational
characteristics of this apparatus.
Awareness of the stated cautions and
warnings, and compliance within
recommended operating procedures –
together with maintenance
requirements – are important for safe
and satisfactory operation.
Customer satisfaction and safety are
important to us. A complete
understanding of this unit is necessary
to ensure safe operation. All units
must be certified to be operating
within the requirements set by the
customer’s Health and Safety
Department. The alarm should be
calibrated and airflow set to meet your
Health & Safety Department
requirements.
If you have any questions about
installations of this product, please
call technical services for assistance.
Warning: This product is not
intended for, nor can it be used as, a
patient connected device.
Warning: As a routine laboratory
precaution, always wear safety
glasses, coat and gloves when
operating apparatus.
Warning: To prevent electrical
shock, always unplug unit prior to
installation. To reduce the risk of
electrical shock, do not expose to
water or rain.
Operating Conditions: Temp 0-40ºC
Humidity 20-75 %RH
Sartorius Safety Weighing
Cabinets SWC cannot be used for
powdered substances that are
classified as carcinogenic,
mutagenic and toxic to
reproduction according to
Guideline 67/548/EEC*. Safety
Weighing Cabinets can also not
be used for cytostatics as well as
unguents containing arsenic and
tar. If these substances are in
liquid form, then the build-up of
vapors and aerosols should be
prevented. As with other
especially hazardous substances,
a risk assessment is required in
this regard with the selection of
appropriate protection measures.
The Safety Weighing Cabinet
cannot be used for biological and
genetically modified organisms
due to the development of
substance-containing dusts,
aerosols and vapors. In all other
cases, a risk assessment must
also be carried out.
Sartorius AG is not liable for the
improper use of Sartorius Safety
Weighing Cabinets SWC.

5
Unpacking
This product is carefully packed and
thoroughly inspected before leaving
the factory.
After unpacking the safety weighing
cabinet, check it immediately for any
visible damage as a result of rough
handling during shipment. It is a good
idea to save the box and all parts of
the packaging until you have
successfully installed the weighing
cabinet. Only the original packaging
provides the best protection for
shipment. If you need to return the
cabinet to the manufacturer, be sure
to unplug all connected cables before
packing it to prevent damage.

6
General Operating Principles
Description of the Safety
Weighing Cabinet
The SWC Series of Safety Weighing
Cabinets are designed to protect the
analyst from exposure to airborne
contaminants during the weighing
process. The design and use of this
system is based around the following
principles.
Safety Engineering Controls
Functional Design
Ergonomic Design
Good Operational Practices
PPE (Personal Protective Equipment)
such as face masks will provide an
analyst with a good degree of
respiratory protection. The level of
protection however is based on the
correct use at all times and also on
the analyst remembering to use the
mask at all times. The aim of good
Safety Engineering Controls is to
engineer out the use of PPE and
wherever possible to eliminate the
human error factor and provide a
guaranteed level of safety.
A well design Safety Weighing
Cabinet will vent any toxic
contaminants via an approved
filtration system and then either into a
house exhaust system to atmosphere,
or re-circulate back into the laboratory
to save on energy. The user is
protected by the cabinet’s ability to
maintain a constant and controlled
flow of air away from the user and
toward a dedicated filtration system.
An airflow alarm system provides
warning of air flow failure both visual
and audible, essentially providing a
fail safe system. A recessed base
area provides protection from spillage.
The assembled system is a single
complete enclosure allowing access
from one opening only and being
designed as a specific workstation will
identify a dedicated area for
potentially hazardous weighing
operations. The system design is
portable allowing the enclosure to be
moved from one location to another
as the laboratory functions change.
The air handling requirements of the
SWC systems are relatively low (50-
90Ltrs /sec) and of Constant Volume
requirements meaning that they are
simple to integrate into existing extract
systems.
The Functional Design of the SWC
series ensures that sensitive balances
can operate effectively. Air flow is
designed to be a smooth, horizontal
laminar flow providing effective
containment at low velocities (0.3-
0.45m/s). The Exhaust plenum is
removable and designed so that it can
be orientated upwards or downwards
which helps with Installation
requirements. The analyst can clean
the exhaust plenum area easily
without any additional protection.
Extract and filtration is provided by a
separate fan filtration system which
remains remote in order to minimise
vibration and to isolate the
contaminated filter. The hepa filtration
system is a safe change bag-out
system which provides effective
filtration to recognised standards for
up to 4 years. Airfoils located on the
access area are moulded in order to
provide good containment and easy
cleaning. A base airfoil will act as a
‘clean area’ arm rest and static
discharge point, as well as an
effective location for flow sensors and
assisting air flow performance.
Ergonomic Design is an important
function as the analyst naturally needs
to lean towards the balance in order to
be able to handle such small
quantities of drug. For this reason the
SWC systems have sloping fronts that
allow the operator to work
comfortably. The construction of the
system from cast acrylic also provides
good optical clarity.
Good Operational Practises ensure
that the SWC systems are used
effectively and to their maximum
potential. Disposal chutes allow
contaminated material to be disposed
of without first leaving the cabinet.
The alarm system ensures that the
system is not used when the
equipment access door is open.
Performance testing of these cabinets
has been carried out using surrogate
sampling techniques that test the
systems control performance for the
actual application in which they will be
used.

7
General Installation Procedures
1. Remove the cabinet from the
packing case ensuring to lift from
the base and not the sides, inspect
for any damage, scratches or
breakage, which may have
occurred in transit. If any
problems or concerns are noted,
please contact the shipping
company immediately.
2. Clean, and if necessary,
decontaminate the surface on
which the cabinet will be installed.
Every effort should be made to
ensure that the area is as free of
potential chemical, physical, or
biological contamination as
possible.
3. Ensure that the surface on which
the cabinet is to be installed is well
lit, level, smooth, and free from
vibration. The front of the cabinet
should be as close to the front of
the balance table as is practical.
4. A comfortable chair with an upright
back and adjustable height should
be designated as part of the
workstation area. Seat height
should be adjusted so that lower
arms are approximately at right
angles (90 degrees) to upper arms
when in the working position.
5. The cabinet should not be placed
in an area of strong room air
currents or cross-drafts that are
caused by ventilation systems or
from an open window or corridor.
These currents should be
eliminated such that the airflow
entering the workstation is not
disturbed. Limiting elbows and
bends and using the minimum
duct lengths will result in more
efficient use of your exhaust
system. If the cabinet is to be
connected directly to the in-house
exhaust system, an adjustable
damper (or gate valve) must be
installed in the system in order to
control the airflow to provide the
required face velocity (0.3-
0.45m/s). This is especially
important in balancing a system
that has more than one cabinet
installed in series.
6. Care must be taken when
vapours, gases and particulate are
being exhausted from a cabinet
that is connected in series with
ducts to the exhaust of another
cabinet to ensure that the
gases/fumes are chemically
compatible.
7. If using a fan/filter housing, follow
the instruction manual to ensure
proper operation in conjunction
with your cabinet.
8. If you have any questions about
installations of this product, call for
technical assistance.
Air Handling Requirements
m³/sec @ 0.35m/s Face
Velocity
m³/sec @0.35m/s Face
Velocity
Model Direct Connection (No
Fan/Filter) Connection Via Fan Filter
SWC900 0.057 0.062
SWC900T 0.066 0.072
SWC1200 0.076 0.083
SWC1200T 0.089 0.095

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Cabinet and Fan Unit Dimensions (mm)
330
520
100 /150

9
System Assembly
Duct Connection to Enclosure and Fan Filtration System
Fan Filtration
System with Bag-
out Hepa fitted
inside
Weighing Cabinet
Alarm
System
Airflow Sensors

10
Fan Filtration System
The SWC510 and SWC515 powder
handling fan units are specifically
designed to provide controlled extract
and filtration for the weighing cabinet
systems.
The fan unit consists of a box-section
housing with a centrifugal fan housed
in the base. Air is drawn through the
top inlet and out through a 100mm
spigot on the side, via a safe-change
HEPA (High Efficiency Particulate
Arrestor) filter. The airflow speed is
adjustable from 0.01 to 0.1 m³/s.
Once set, the speed control circuit will
maintain the required velocity.
The fan unit itself is designed to be
located either next to, or under the
cabinet system for which it is
providing airflow. The fan unit can be
mounted on its side, if required, but
not in an inverted position. When
locating the fan unit, ensure that
access for yearly maintenance is easy
as filter changes will have to be made.
System Specifications
Model: SWC510/515
Volume Flow 340m³/Hr =95 ltr/sec
Dimensions Height: 520mm
Depth: 375mm
Width: 375mm
Weight: 20kg (with Filter)
Fan Type: Centrifugal Fan
Output 0.36KW (360 Watts)
Voltage, Europe 230V /1PH/50HZ
Current 2Amp Max Load
Noise Level 49dBA-63dBA
Speed Adjustment
Speed Control Dial:
Speed adjustment
Anti Clockwise = Increase
Flow
Clockwise = Decrease Flow
Pressure Gauge
Green Light = Filter Good
Red Light = Filter Full
Movement or relocation of the
fan unit must be carried out
under safety supervision due
to manual handling issues

11
Fan Filtration System
Installation of HEPA Filter into New
and Unused fan filtration systems.
The Bag-out HEPA filter is designed
to provide a safe change mechanism
when the filter has become loaded.
Correct Installation will ensure that the
replacement of filters is safe and
easy.
Before commencing with an
installation or filter change:
Ensure the client has prepared the
installation area as safe for entry
or advised you of any residual
risks.
Ensure the fan filtration system
and ducting is new and unused. If
in doubt, follow the steps from
page 13.
First Installation of HEPA Filter into
New and Unused fan filtration
systems
PPE required for this Section:
None required during installation of
new equipment in a clean and safe
area
1. Using good manual handling
techniques remove the filter from its
packaging taking care not to touch the
filter media, place the filter into the fan
filtration system with the filter bag-out
sleeve facing upwards.
2. Pull the filter sleeve up
through the fan filtration system inlet
ensuring that all the material is pulled
through and that none of the sleeve is
gathering around the opening (this
can restrict airflow and produce extra
noise in operation)
3. Slide the clean vent ducting
over the sleeve and filter housing
inlet. Once the ducting is in place over
the sleeve there should be excess
sleeve material showing which must
be wrapped around the outside of the
duct. Around this sleeve material and
onto the fan inlet spigot, fasten a
jubilee clip to secure the ducting and
sleeve in place. (This arrangement
creates excess sleeve. When the filter
is changed, it will become part of the
safety controls to minimize exposure).
4. Tighten the Jubilee clip and
fold the excess material over the clip
to cover it.

12
Cleaning Procedure
Cleaning
The cabinet should be kept clean at all
times, proper use will mean that any
spillages or contamination is disposed of
in a safe manner and that the cabinet is
left clean for the next analyst to use
without the risk of cross contamination.
The base area of the cabinet is granite
which has good resistance to cleaning
chemicals and being black in colour will
highlight the majority of (white) drug
compounds.
Cleaning of the cabinet panels should be
with weak or non solvent based solutions
such as: Isopropanol, Ethanol, or soapy
water.
Non Solvent Decontamination Wipes are
also available as an accessory (SWC-
DECONWIPE).
CAUTION: Do not use acetone or other
strong solvents to clean the cabinet.
Waste Chute Disposal Procedure
Safe Removal of Waste Disposal Bag
Wear double gloves for this procedure
Prior to removal have ready inside of
the enclosure:
Replacement waste bag
Elastic band to secure to disposal
chute
Safe Change Procedure:
Remove and seal the internal bag.
Push the sealed bag into the outer
bag.
Attach a new waste bag to the internal
disposal chute section so that the bag
faces into the enclosure.
Remove outer gloves and place inside
the enclosure
Remove the external bag and seal.
Attach a new waste bag and fix with
elastic band
Dispose of used waste bag.
Push the new internal bag through to
the disposal chute and dispose of
contaminated outer gloves.

13
Maintenance Program
Every 6 Months Visual Inspection – Check
Physical damage to Panels
Physical damage to base
Alarm connection points
Ductwork damage
Secure duct connection to Cabinet and
Fan Filtration system
Base airfoil check
Door Operation
Cable access plates
Plenum Fasteners on back.
Power Block Assembly
Disposal chute fixing.
Operational Inspection – Check
Alarm Operation
Smoke test (airflow check)
Airflow velocity Test
Fan Filter Pressure gauge check
Every 12 Months Same tests protocol as 6 months plus:
Alarm Test and Calibration
Filter Integrity Test (DOP Test)

14
Safe Change Procedure for Bag-out Hepa Filters
Filter replacement will be required when:
An acceptable face velocity is no longer attainable
The Filter Integrity has become compromised
After 4 years of use
Precautions:
Dynamic Risk Assessment
Before entering an area to carry out a HEPA filter
change ensure the client has made you aware of any
health and safety risks in the area and, or conduct a
risk assessment to ensure the safety controls stated in
this procedure will remain adequate.
You may be required to follow a client’s safe change
procedure. If this is the case, ensure training is
provided.
When removing a contaminated HEPA filter the operator must
wear the following PPE (Personal Protective Equipment) as a
minimum.
Double Gloves (Nitrile or Vinyl)
Disposable coverall with overshoes (i.e. Tyvek®) – or
higher level if customer dictates
P3 filtered air Respirator
Keep tools and equipment in bags to minimize contamination.
Prior to starting Change out procedure:
Ensure that the fan filtration has been running for at least
2 hours since last being used for extracting a potentially
contaminated atmosphere from a cabinet system.
Gently tap on the flexible ducting along its length just prior
to the fan housing. This will ensure any loose residual
powders attached to duct and at the immediate connection
point are drawn into the filter. Leave to run for a further 10
minutes.
Filter Removal and Replacement Procedure
NOTE: Full PPE to be worn, in case of system failure during
change procedure.
1. With the fan unit still running, slightly loosen the
jubilee clip to allow the flexible duct to pull upward extending
out the sleeve. DO NOT allow the sleeve to come away from
the duct as this may result in escape of contaminants. Allow
the sleeve to close and collapse by the vacuum produced by
the fan extract.
NOTE: The inner of the extended sleeve should be
significantly less contaminated than the duct and inner of the
filter bag because it has very limited exposure to the
contaminants passing through the duct into the filter bag.

15
2. Secure the bottom first, and then the top section of
the sleeve with two cable ties. Allow at least 100mm space
between the ties.
3. Turn off the fan unit.
Tape securely between the 2 cable ties with heavy-duty duct
tape.
Cut the taped bag sleeve at the mid point with the ratchet
cutter.
Wipe the ratchet cutter and handle with a cleaning wipe to
remove any contamination
Dispose of the wipe in a hazardous waste bag
Carefully place the duct with sealed filter sleeve cover to one
side in a place where it will not be disturbed.
The fan unit lid can now be removed leaving the sealed filter
assembly standing in the fan house cavity. The filter is now
safe to remove.

16
Wipe the top of the filter housing lid with a cleaning wipe
and place to one side
Using the bag the new filter is supplied in lift the old filter
out and zip tie the bag shut (the new filter should be put to
one side).
Place into a second hazard bag along with your top pair of
gloves and seal with a zip tie.
Place the double-bagged filter in the box the new filter
came in, seal the box and label with the contents ready for
disposal.
4. Place the new HEPA filter into the fan unit, replace
clean lid, pull the sleeve material through and open out
around the entrance to the filter.
Turn on the fan again ensuring that the bag-out sleeve is
secure and not being drawn in by the filter.
Put a second pair of gloves on
Position the flexible duct so the end of the duct is above the
centre of the new filter
Loosen the jubilee clip and using a hazardous waste bag,
ease the sleeve and jubilee clip from the duct and seal. Place
to one side.
NOTE: This is the highest risk part of the filter change
because the duct is open potentially exposing any hazardous
contaminants inside.
Keeping the duct over the filter opening, slide the vent ducting
over the sleeve and filter housing inlet. Once the ducting is in
place over the sleeve there should be excess sleeve material
showing which must be wrapped around the outside of the
duct.

17
Around this sleeve material and onto the fan inlet spigot,
fasten a jubilee clip with a flat head screwdriver to secure the
ducting and sleeve in place. Ensure the jubilee clip is secure
Wipe the screwdriver with a clean wipe, dispose of the wipe in
a hazardous waste bag.
The filter change is complete.
Equipment Clean up after Filter Change
Prepare a hazardous waste bag for wipes and gloves.
Place bagged waste sleeve in another hazardous waste bag,
seal and label with contents.
Dispose of second pair of gloves (into hazardous waste bag)
and replace with clean gloves
Wipe the outside of the duct for 1m from the connection point
with a cleaning wipe. Dispose of wipe in hazardous waste
bag.
Wipe the top and sides of the filter housing with a cleaning
wipe.
Dispose of wipe in hazardous waste bag.
Wipe any other tools used with a cleaning wipe. Dispose of
wipe in hazardous waste bag.
PPE Removal
To remove a coverall suit or over coat:
Aseptically remove coverall suit.
Carefully work suit off shoulders without touching under
clothes.
If necessary, reach behind and with fingertips and pull coverall
from middle of back.
Pull arms from the inside out removing outer second pair of
gloves as well.
Once at waist level and touching only the inside of the suit,
work the suit to your ankles by rolling it down.
At this point, step out of the suit and remove coverall
boots/overshoes.
Role the suit up keeping the contaminated side inwards.
Place in a hazardous waste bag twice, seal and label.
Finally, remove re-useable respirator full-face mask and clean
as per maintenance procedure.
Remove final pair of gloves and dispose in hazardous waste
bag.
Final Waste Removal
Take additional hazardous waste bags, seal then place into a
second hazardous waste bag, seal and label with contents.
Ensure all hazardous waste is collected, or made available for
disposal.
Thoroughly wash hands, wrists and face.

18
Flow Alarm
Overview and User Guide
The Sartorius airflow alarm monitors the
airflow condition entering the Safety
Cabinet and indicates whether there is a
safe airflow condition for the operator to use
the system. The cabinet must not be used
without the alarm in operation, or if the
alarm is displaying an airflow fault
condition.
When turned on, the display shows a
unique serial number for 2 seconds. This is
a reference number that can be used to
identify the installation.
The display will then show “Stabilising flow
sensors, Please wait 20s”. The unit then
checks both the left- and right-hand sensors
in turn and displays their status (i.e., LEFT
OK, etc). If a fault is detected, then the
display will show the sensor name and the
word “faulty”until the fault is cleared.
The unit continues its test on its internal
memory space. If the data storage space
used is > 80%, a warning message will be
displayed showing “> 80% full”. When the
internal memory is totally full, a message
warning “Now Full” will be displayed.
After the above test and initialization have
been successfully completed, the unit will
then enter its main monitoring routine.
During normal operating conditions the
alarm display will show “AIRFLOW SAFE” if
the airflow level is lower than the
recommended level, the display will read
“AIRFLOW FAIL” and an audible alarm will
sound.
The flow alarm measures the level of
airflow entering the cabinet. The alarm has
two flow sensors located under the airfoil,
one on either side of the unit. If the airflow
speed drops below 0.3m/s the alarm will
indicate this on the display and a red light
will show which sensor has a low flow
condition. If the sensors detect a low flow
condition for more than 20 seconds, then
an audible alarm will also sound.
When ever a fault condition occurs this is
logged in the alarm’s internal memory. A
report of the alarms operation can be
downloaded using a data logging unit and
this information stored on a PC for
maintenance record purposes.
Sensor Operation Check
In order to check correct sensor operation
cover each sensor opening in turn and wait
for a maximum of 20 seconds to see if the
alarm unit responds with a sensor low flow
condition.
To prove effect operation of both sensors
open the access door to the cabinet and
wait for a maximum of 20 seconds, an
audible alarm will sound to indicate that the
airflow profile coming into the cabinet is not
acceptable.
Installation and Calibration
Guide
Alarm Assembly & Connection
The unit uses two types of ribbon cable:
10-way and 14-way. The two 10-way
cables connect the flow sensors on the
airfoil to the connection box. The 14-way
cable connects the connection box to
display unit (as shown below). Also
connected to the display unit is the power
supply. This is where the data logger is
connected.

19
Alarm Operation
Both sensors are checked once every
100ms. The results are averaged over 20
cycles, a period of 2 seconds.
If the flow of both sensors’ average is
greater than 0.3m/s, then the display will
read “Airflow safe”.
Both the left- and right-hand green LEDs
are illuminated, indicating a safe condition.
If the left or right-hand sensor’s average is
less than 0.3 m/s for more than 15 seconds
the red alarm LED is illuminated.
The display will show which sensor
triggered the alarm, i.e. “Low flow on RHS”
(Right Hand
Sensor). An audible alarm sounds at an
interval of 1 second on, 5 seconds off.
If both sensors’ average is < 0.3m/s for
more than 5 seconds, then the unit displays
“Airflow Fail”. The red alarm LEDs are lit
and the audible alarm sounds as above.
Once the unit has entered either of the
above alarm states, then an average flow of
> 0.3m/s for more than 2 seconds needs to
be achieved. When this occurs, the alarm
condition will automatically be reset.
Sensor Fault
If during normal operation any of the
sensors are removed or become faulty, the
unit will display which sensor is faulty. The
unit will flash both red alarm LEDs and
sound an alternating audible. This will
continue until the sensor causing the alarm
is re-activated.
If the cause is due to a faulty sensor, then
the sensor needs to be replaced. During
this fault condition, the unit will not measure
or log any flow data; however the alarm
condition that has resulted in a fault will be
logged.
Logging of Fault Conditions
A Fault condition is logged along with Date
and Time when:
Any Sensor registers a low Flow
Condition
Power is Turned Off and On
Airflow Failure is registered when both
sensors record a low flow condition
Sensor Operation Check
The sensors can be checked by blocking
the air flow or opening the Cabinet door.
Within 20 Seconds an audible alarm will
sound and an LED will indicate which
sensor has failed.
Alarm Calibration
Plug the Remote logging unit into the alarm
unit, the logger will be powered via the
alarm.
The remote logger will show the status of
the internal memory before entering the
main menu.
Menu Functions
Navigation is by means of the UP, DOWN
and ENTER buttons. There are 5 modes as
follows.
a.Set Up Sensors
b.Set Date and Time
c.Download Stored Data to PC
To enter the above modes, navigate with
the Up and DOWN buttons until the mode is
displayed and then press the ENTER
button.
Set Date and Time
1. Upon entering this mode, the Remote
display will show the date and time set
in the Logger. (The Logger display will
show “Clock setting”).
Set Up Sensors
Upon entering this mode, the Remote
Logger display will read “set L/R/T Pots” on
the first line and “<= Escape” on its second
line.
The logger will display the left- and right-
hand sensor flow readings on the first line
and, if fitted, the tube sensor readings on
the second line.
There are three potentiometer (“pot”)
adjusters on top of the alarm. The left
potentiometer adjusts the left-hand sensor;
the middle potentiometer, the tube sensor;
and the right potentiometer, the right-hand
sensor.
1. With the use of a calibrated
anemometer, the sensors should be
calibrated by adjusting the relevant
trimming pots for each sensor so that
they read the average face velocity
near the location of each of the
sensors.
2. Once the sensors have been
calibrated, press the ENTER button to
escape. This will return the remote unit
back to the menu mode and the logger
back to its main routine.
Date and Time
If the time is correct, press the UP button
for YES and the unit will beep before
returning to the menu mode. If the time is
incorrect, press the DOWN button to enter
the Set Up Date and Time mode.
1. The first step is to set the year. With
the use of the UP and DOWN buttons,
select the correct year, then press the
enter key.
2. Next set the month, date, hour and
minutes in a similar manner to above.
3. Once all of the settings are correct, the
Logger will beep and return to the
menu mode.

20
The logger will display the new date and
time on its top line and “Please Wait” on its
second line. You should not try to enter a
new menu until this has cleared (stopped
displaying). Otherwise, a message
“Comms failure” will be displayed on the
remote.
Downloading Data From Alarm Logger
to remote Logger
1. When in ‘Download Data Mode’ press
the ENTER button. The unit will
immediately try to download all stored
events from the Alarm Logger unit to
the Remote Logger.
2. If there are no events stored, the
Remote and Logger will display “No
Data Stored”.The remote will return to
the menu mode and the logger unit will
return to its main routine.
If there is data to download, the Alarm will
display “Sending data to remote” and the
Remote will display “Receiving data”.
Upon completion both units will display
“Download complete” and all data will be
automatically erased from the internal
memory of the Alarm logger in order to free
up space. This is important to note
because once the data has been erased
from the main logger, it can not be
retrieved again from this unit (it will be
stored in the remote for PC download only).
Downloading data to PC
In order to download and record the data
from the Alarm Logger the AirFlow data
logging software must be loaded onto a PC.
Connection to the PC from the Datalogger
is via a 9 pin serial port cable for the data
and USB cable for power.
1. This mode is used to send to a PC the
data that has been loaded into the
Remote Logger from the Alarm logger.
2. After the download program has been
launched on the target PC, Press the
ENTER button on the Remote Logger.
The Remote display will show
“Sending data now”. The PC will show
a progress bar.
3. When the transfer is complete the
Remote will display “Download to PC
completed” and the PC will show
“Download completed”.
4. The Remote will then display “Clear
Memory”, and ask you to select Yes or
No. If you are happy that the transfer
was successful, select YES to clear the
memory. Once you do this then the
only record of the data is on the PC. If
you select No; then the memory will
remain on the remote. You can then
use the remote to again download its
memory contents to another PC if
required.
Data logging Software Report