Nailor 37S Manual page 125

ANALOG CONTROL CALIBRATION CHARTS
VOLTAGE VS. AIRFLOW
When field adjustment or field calibration of the CTE-5100 series thermostats is necessary, desired limit control can be calculated using the
tables in Figure 3 and the following formulas, or the charts presented in Figures 4 through 8.
Formulas:
CFM = K (VDC - Offset)
Follow the individual calibration procedure for the thermostat model(s) as required.
Inlet size K factor
4 in. Round 33
5 in. Round 55
6 in. Round 75
7 in. Round 115
8 in. Round 143
9 in. Round 175
10 in. Round 233
12 in. Round 357
14 in. Round 500
16 in. Round 625
Figure 3. Diamond Flow Sensor K Factors.
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
0
Figure 4. Inlet Sizes 4, 5, 6 Round
3/11 IOM-AECVAV
Nailor Industries Inc. reserves the right to change any information concerning product or specification without notice or obligation.
VDC = (CFM/K) + Offset
Offset
Inlet size
+ 0.44
12 in. Oval
+ 0.02
14 in. Oval
+ 0.08
16 in. Oval
- 0.19
18 in. Oval
+ 0.32
+ 0.10
Inlet size
+ 0.09
- 0.04
- 0.07
- 0.25
SIZ E
4
1 0 0 2 0 0
K factor
333
417
588
759
K factor
14 x 10 417
24 x 16 1250
S I ZE S I ZE
5 6
3 0 0
AIRFLOW, CF M
Offset
- 0.22
- 0.47
+ 0.05
- 0.27
Offset
- 0.14
- 0.07
4 0 0 5 0 0 6 0 0
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