Install Instructions

NWC - Inches of water column
FTWC - Feet of water column
MMWC - Millimeters of water column
CMWC - Centimeters of water column
PSI - Pounds per square inch
INHG - Inches of mercury
MMHG - Millimeters of mercury
MBAR - Millibar
PA - Pascal
KPA - Kilopascals
HPA - Hectopascals
OZIN - Ounce inches
Note: OVFL (over ow) or UnFL (under ow) will appear when the ranges have been exceeded above or below full
scale by 2%.
Note: Air velocity and ow readings are based upon standard dry air conditions with an ambient temperature of 70°F
and a barometric pressure of 29.92 INHG.
PrES (Pressure) SUB MENU
For pressure measurement, the following units are available:
UEL (Velocity) SUB MENU
For velocity measurement, the following units are available:
SFPM - Standard feet per minute
M/S - Meters per second
Table 1 - Pressure Range vs. Available Units
INWC FTWC MMWC CMWC PSI INHG MMHG MBAR PA KPA HPA OZIN
.1000
.2500
.5000
1.000
2.500
5.000
10.00
25.00
50.00
100.0
.2083
.4167
.8333
2.083
4.167
8.333
2.540
6.350
12.70
25.40
63.50
127.0
254.0
635.0
1270
2540
.2540
.6350
1.270
2.540
6.350
12.70
25.40
63.50
127.0
254.0
.1806
.3613
.9032
1.806
3.613
.1839
.3678
.7356
1.839
3.678
7.356
.1868
.4671
.9342
1.868
4.671
9.342
18.68
46.71
93.42
186.8
.2491
.6227
1.245
2.491
6.227
12.45
24.91
62.27
124.5
249.1
24.91
62.27
124.5
249.1
622.7
1245
2491
6227
.1245
.2491
.6227
1.245
2.491
6.227
12.45
24.91
.2491
.6227
1.245
2.491
6.227
12.45
24.91
62.27
124.5
249.1
.1445
.2890
.5780
1.445
2.890
5.780
14.45
28.90
57.80
Table 2 - Available Velocity Ranges
INPUT RANGE
IN WC
SFPM
RANGE
M/S
RANGE
0 - 0.1
0 - 0.25
0 - 0.5
0 - 1
0 - 2.5
0 - 5
0 - 10
0 - 25
0 - 1266
0 - 2002
0 - 2832
0 - 4004
0 - 6332
0 - 8954
0 - 12.66 x IK
0 - 20.02 x IK
0 - 6.431
0 - 10.17
0 - 14.39
0 - 20.35
0 - 32.17
0 - 45.48
0 - 64.33
0 - 101.7