Quickchart - logic type b2 biohazard cabinets – Labconco PURICARE Procedure Station Models 34812xx User Manual
Page 23

Page 23 of 197
QuickChart - Logic Type B2 Biohazard Cabinets
Footnotes, Continued
UV lamp Specifications
9
For all models, the UV lamp number is G30T8. The Labconco part number is 1271300.
9
For all 115/230 VAC models, the ballast assembly is Labconco part number 3829901. The
ballast is Robertson part number PSM2GPH18MVW.
9
For all 100 VAC models, the ballast assembly is Labconco part number 3830600. The
ballast is Robertson part number RSO1GPH30100.
Logic Filter Life Gauge Operation and Resetting for Local Conditions
The filter life gauge calculates the remaining filter life by measuring and comparing the current
motor speed to the initial speed noted at the factory during assembly, and the calculated
maximum motor speed, using the formula:
100-(100x (current speed-original speed) ) = % filter life left
max. speed-original speed
So
anything
that changes the motor’s current speed, like:
9
Blocking the grille.
9
Raising the air temperature.
9
Lowering the barometric pressure.
will increase the motor’s speed, causing the Filter Life Gauge to decrease. Electronic dampening
of the gauge will limit the change in readings to approximately 1%/minute.
Logic Biosafety Cabinets being installed at altitudes or operating at temperatures significantly
different from those at the time of manufacture (900 +/- 500 ft above sea level, 75
o
+/- 5
o
F)
must
have their filter life gauge recalibrated for local conditions. Failure to do so will result in the
users noticing a steady drop in Percent (%) Filter Life remaining as the unit operates. Below are
the instructions on how to correct the Filter Life Gauge for local conditions.
1. Ensure to correct all measurement equipment for local conditions (temperature,
absolute pressure). Anemometers may not have this ability and might have to be
done manually; whereas, a ShortRidge
TM
instrument has a setting to correct for
local conditions.
2. As the elevation or the ambient temperature rises, the motor power factor will
have to be reduced to compensate. For an initial certification, the motor speed
should be reduced until it equals the Logic’s “Initial Motor Speed” as reported on
the unit’s test sheet, plus approximately 10-15 RPM per each additional 1000 feet
of elevation.
3. The Logic MUST be recertified using instruments corrected for local conditions.
4. When the unit is recertified, and operating properly, the certifier MUST RESET
THE FILTER LIFE GAUGE, INDICATING A NEW FILTER HAS BEEN INSTALLED.
5. Only by performing Step #4 AFTER THE UNIT IS READJUSTED AND
RECERTIFIED FOR ITS LOCAL CONDITION, will the filter life gauge register
100% (+/- 2%) during operation. As the Filters then load, the filter life gauge
will then begin to drop as appropriate.
- PURICARE Procedure Station Models 34810xx PURICARE Procedure Station Models 34802xx PURICARE Procedure Station Models 34800xx Type B2 Biosafety Cabinets Models 34610xx Type B2 Biosafety Cabinets Models 34410xx Type A2 Biosafety Cabinets Models 34609 Type A2 Biosafety Cabinets Models 34509 Type A2 Biosafety Cabinets Models 34409 Type A2 Biosafety Cabinets Models 34309 Type A2 Biosafety Cabinets Models 34608xx Type A2 Biosafety Cabinets Models 34508xx Type A2 Biosafety Cabinets Models 34408xx Type A2 Biosafety Cabinets Models 34308xx Type A2 Biosafety Cabinets Models 34600xx Type A2 Biosafety Cabinets Models 34500xx Type A2 Biosafety Cabinets Models 34400xx Type A2 Biosafety Cabinets Models 34300xx