Fluke Biomedical DPM1B - Manual (Page 20)

DPM1B
Operators Manual
10
Note
Allow approximately 3 minutes warm-up time before taking
readings; this allows the electronics to stabilize in the Tester.
4. Zero the Tester by turning the ZERO knob on the front panel of
the Tester (See Figure 1 for location of ZERO knob).
5. When the monitor has zeroed, reposition the valve of the
stopcock as shown in Figure 3.
Pressure Measurement
1. Position the stopcock as shown in Figure 4.
2. Move the thumbwheel of the Tester to change the static
pressure generated. See Figure 1 for location of thumbwheel.
The thumbwheel is rotated down for positive pressure or up for
vacuum pressures.
3. Observe the LCD.
4. Compare the LCD reading on the Tester to the monitor reading
to determine the accuracy of the measurement system.
Note
If the system appears to be losing pressure, carefully check all
fittings and connections.
DPM-1B
Filter
2
1
Test Transducer
Vent Port
ehf3.eps
Figure 3. DPM1B Vented to Atmosphere