Fluke PV350 - Conversion Factors and Calibration; Conversion Factors; How to Calibrate the PV350

PV350 English Instruction Sheet
Page 5
88
AUTOMOTIVE TESTER
MIN MAX RANGE HOLD
H
mA
A
mV
V
V
OFF
A
mA A
10A MAX
FUSED
ZERO
SMOOTH
Hz
RPM % DUTY
mA
A
RPM
ALERT
TRIGGER
_
+
ms-PULSE
!
COM
1000V MAX
400mA MAX
FUSED
DC
mV
4000
mV
20 2
46
3824684
RANGE
V
RPM
M
E
T
R
IC
E
N
G
LI
S
H
Z
P
V
5
0
0
P
R
E
S
S
U
R
E
/
V
A
C
U
U
M
M
O
D
U
L
E
cmHg
inHg
kPa
psi
OF
F
Figure 4. Measure Pneumatic Pressures
psi = inches of H
2
O x (3.6127 x 10
-2
) inches of H
2
O = psi x 27.68
psi = mm of H
2
O x (1.4223 x 10
-3
) mm of H
2
O = psi x 703.1
psi = cm of H
2
O x (14.223 x 10
-3
) cm of H
2
O = psi x 70.3
psi = bar x (14.503) bar = psi x 0.0689
psi = lbs/ft
2
x (6.9444 x 10
-3
) lbs/ft
2
= psi x 144
psi = mbar x (1.4503 x 10
-2
) mbar = psi x (68.9513)
psi = Pascals x (1.4503 x 10
-4
) Pascals = psi x (6.895 x 10
3
)
All H
2
O conversion factors are @ 4°C
Conversion Factors
How to Calibrate the PV350
Calibrate the PV350 yearly to ensure that it meets its performance
specifications.
Table 1. Recommended Equipment
Instrument Minimum Specification Recommended Model
Precision
Pressure
Reference
500 psi, 0.25 % of reading
accuracy
Crystal Engineering
inHg/PSIG Multical or
equivalent
Pressure
Source
Nitrogen gas bottle with
pressure regulator, >750
psi
Tescom pressure
regulator Model 44-
2214-24 1 V
DMM 0 to 500 mV (minimum)
with 0.1 mV resolution
10 MΩ input impedance
Fluke 189 or equivalent
1. Allow the PV350 to stabilize at room temperature, away from drafts,
for at least 30 minutes. Turn on the DMM and, if required by its
operating instructions, allow it to warm up as indicated.