Ashcroft 1082 Installation, Operation And Maintenance Manual - Page 10
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True Value –
Increasing –
PSI
Without RAP
0
40
80
120
160
200
True Value –
Increasing –
% of Range
Without RAP
0
20
40
60
80
100
1.0
Fig. 1
0.5
●
0.0
▲
▲
–0.5
●
◆
■
–1.0
0
TYPICAL CALIBRATION CHART
INDICATED VALUE (PSI)
Increasing –
With RAP
–.4
+.8
+1.0
+.4
–.4
–.8
+.4
ERROR (% OF FULL SCALE)
Increasing –
With RAP
–.20
+.40
+.50
+.20
+.25
–.20
–.40
+.20
+.40
◆
◆
■
■
●
▲
●
▲
▲ upscale – without rap
● upscale – with rap
◆ downscale – without rap
■ downscale – with rap
20
40
% of Range
Decreasing –
Without RAP
0
+1.4
+.5
+1.2
–1.0
+.8
–.5
+.6
+.8
+.4
Decreasing –
Without RAP
0
–.20
+.70
+.60
–.05
+.40
–.25
+.30
+.20
◆
■
●
▲
60
10
Decreasing –
With RAP
–.4
+1.1
+1.0
+.6
+.4
+.4
Decreasing –
With RAP
+.55
+.50
+.30
+.20
+.20
●
◆
▲
■
●
▲
80
100
0
0