Fluke Biomedical DPM2 Plus - Manual (Page 15)

DPM2 Plus Digital Pressure Meter
Making Measurements
7
To avoid getting liquids in direct contact with the pressure
sensor, place the Meter above the liquid and allow a short
column of air between the liquid and the sensor input. See
Figure 2-2.
Should the Meter pressure chamber come into contact with
a liquid that may contain corrosive solutes (salts), the
Meter pressure chamber should be flushed with water. Use
an ordinary syringe to flush the chamber.
DPM2Plus PRESSURE
METER
inH 2 0
-13.5~15psi
-13.5~100psi
mmHg
VOLTAGE OUTPUT
0.01 V/psi 100 psi RANGE
0.1 V/psi ON OTHER RANGE
OFF
cmH 2 0
Air
Up
Liquid
ehg2.eps
Figure 2. Setup for Measuring Liquid Medium
Voltage Output Jack
The voltage output jack is located on the right side of the Meter case. The
Meter generates a DC voltage directly proportional to the pressure or vacuum
applied at its input port. This DC voltage is 0.1 volt/psi on all ranges except the
100 psi selection which is 0.01 volt/psi.
You can connect a data-logging device (strip chart recorder) to this voltage
output and graph profiles from a wide range of pressure or vacuum sources.
For example, you can measure peak pressures and cycling intervals generated
by rotating tourniquets.