Fluke Biomedical 859A-1-72 - Manual (Page 13)

Operation 4
4-3
4.2 Controller Adjustments
The following procedures address filter speed adjustments for internally set filter speeds on the controller.
If an external pulse is used to set filter speed, the external equipment producing the pulse must be
checked independently of this procedure.
Refer to the applicable systems manual to perform system start-up.
Controller Timer Adjustments:
WARNING
Use extreme care when performing adjustments with power applied
NOTE
Refer to Appendix A, drawing 859-1-717 for resistor locations.
1.
Turn the speed control switch to 10 in./hr. Adjust R14, (1 meg-ohm) to give one step every 1.5
seconds.
2.
Turn the speed control switch to 2 in./hr. Adjust R13, (1 meg-ohm) to give one step every 7.5
seconds.
3.
Turn the speed control switch to 1 in./hr. Adjust R12, (1 meg-ohm) to give one step every 15.0
seconds.
4.
Turn the speed control switch to 0.5 in./hr. Adjust R11, (1 meg-ohm) to give one step every 30.0
seconds.
5. Push the FILTER CLEAR pushbutton on the 859-1-50 Continuous Filter Air Sampler and adjust
the timed relay to stop the fast advance after 5.5 seconds.