Form 37714 Rev 2002
Page 3 of 13
Operation
High Flow Applications (1000 to 3000 ml/min)
Set/Calibrate Flow Rate
• Allow pump to equilibrate after moving it from one temperature extreme to another.
• Charge battery completely before calibration and sampling.
1.
Ensure that the battery is fully charged and that the pump has run for five minutes before
calibrating. Leave the pump running.
2. Prepare the calibrator.
See calibrator instructions
.
3. Set up a calibration train: Using flexible tubing, connect the calibrator outlet (suction port)
to the representative sample medium inlet. Using ¼-inch Tygon tubing, connect the sample
medium outlet to the pump inlet.
See right
.
4.
Using a screwdriver, set the pump flow rate by turning the flow adjustment screw on top of the pump
(Figure 1)
,
clockwise
to increase
or
counterclockwise
to decrease flow, until the calibrator indicates the method-specified flow rate. Take a minimum of three readings
and record the average flow rate, as per OSHA/NIOSH instructions.
5. Press the on/off button to turn off the pump. Disconnect the calibrator and flexible tubing from the representative sample medium
and proceed to
Set Up/Sample
.
Set Up/Sample
• Allow pump to equilibrate after moving it from one temperature extreme to another.
• Protect sample pump from weather when sampling outdoors.
• Powering the pump with any device other than the approved battery pack voids the UL Listing for intrinsic safety.
• Do
not
use the pump with the Battery Eliminator in hazardous locations. UL Listing for intrinsic safety is not in effect
during pump operation with Battery Eliminator.
• Use of any device other than the approved battery pack or Battery Eliminator to power the pump voids any warranty.
• Charge battery completely before calibration and sampling.
1. Replace the representative sample medium with new unexposed medium for sample collection.
2. Place the sample medium where appropriate for sampling.
a. For
personal sampling,
clip the sample collection medium to the worker in the breathing zone and the
pump to the worker’s belt using the belt clip.
When using an impinger, an in-line trap (SKC Cat. No. 225-22 or 225-22-01) is required between the pump and
impinger to prevent fumes from accidentally being drawn into the sampler. Failure to use an appropriate in-line
trap during impinger sampling voids any warranty.
b.
For sampling with an impinger,
mount the single or dual impinger and trap (SKC Cat. No. 225-20-01 or
225-20-02) to the face of the sampler using the accessory mounting screws
(Figure 1)
or place them in a
holster at the worker’s waist.
3. Press the on/off button to clear the elapsed time displayed on the LCD and to start sampling. Record the
start time and other pertinent information. The LCD will automatically display elapsed pump run time.
See below.
Possible Displays During Sampling
Flow or Battery Fault Shutdown -
If the pump is unable to compensate due to excessive back pressure or a low battery
condition exists, it will shut down and timing functions will pause. The LCD will display either a battery-shaped icon
or a flow fault icon (
) depending on the cause of the shutdown. Upon flow fault, the pump will attempt to restart up
to five times. To restart from flow fault, correct the blockage and press the on/off button twice.
The elapsed run time
display will reset to 0 when the pump is restarted.
If the battery icon is displayed, recharge the battery before sampling.
Displayed Elapsed Run Time -
Elapsed run time is displayed continuously on the LCD. For elapsed times after 999
minutes, the display still shows elapsed time but alternates between displaying the first two digits of the elapsed time
and the last three digits. For example, a pump that has run for 1,440 minutes would display first “01” and then “440.”
The display maximum is 99 999, which is 99,999 minutes.
4. At the end of the sampling period, press the on/off button and record stop time and other pertinent information.
chek-mate
Calibrator
Sample medium
Tygon
tubing
Calibration train with filter cassette
Pump
inlet
Suction
port
Clip sample medium
to worker and pump
to belt.
Impinger holder on pump
with impinger and trap
