Cleaning the tester, N.a. hpa n.a. %rh – Fluke Biomedical DPM4 User Manual
Page 24

DPM4
Users Manual
16
Barometric Pressure and Relative Humidity
(Models 2G and 2H)
When you have selected ENVIRONMENT, the Tester
switches on the power supply for the barometric pressure
sensor. The sensor needs about ten seconds to warm up
before the measurement results are reliable.
Use the F1 to F4 keys to select the barometric pressure
measuring unit. See Figure 4. The Tester then measures
the barometric pressure and the relative humidity. Return
by pressing a test key.
F1
F2
F3
F4
hPa
N.A. hPa N.A. %RH
mmHg
mBar
inHg
ebu15s.eps
Figure 4. Barometric Pressure and Relative Humidity
Cleaning the Tester
Clean the outside of the Tester using a damp cloth with
mild detergent. Please note that some solvents like
methanol may damage the overlay and case.
W Caution
Do not pour fluid onto the Tester surface;
fluid seepage into the electrical circuitry may
cause Tester failure.
W Caution
Do not use spray cleaners on the Tester;
such action may force cleaning fluid into the
Tester and damage electronic components.