Ashcroft 1495 - Low Pressure Receiver Gauge - Manual (Page 10)

10
TYPICAL CALIBRATION CHART
INDICATED VALUE (PSI)
True Value – Increasing – Increasing – Decreasing – Decreasing –
PSI Without RAP With RAP Without RAP With RAP
0 –.4 0 –.4 0
40 +.8 +1.0 +1.4 +1.1
80 +.4 +.5 +1.2 +1.0
120 –.4 –1.0 +.8 +.6
160 –.8 –.5 +.6 +.4
200 +.4 +.8 +.4 +.4
ERROR (% OF FULL SCALE)
True Value – Increasing – Increasing – Decreasing – Decreasing –
% of Range Without RAP With RAP Without RAP With RAP
0 –.20 0 –.20 0
20 +.40 +.50 +.70 +.55
40 +.20 +.25 +.60 +.50
60 –.20 –.05 +.40 +.30
80 –.40 –.25 +.30 +.20
100 +.20 +.40 +.20 +.20
1.0
0.5
0.0
–0.5
–1.0
0 20 40 60 80 100
% of Range
◆
◆
◆
◆
■
■
■
■
●
●
●
●
●
●
▲
▲
▲
▲
▲
▲
▲ ▲ upscale – without rap
● ● upscale – with rap
◆ ◆ downscale – without rap
■ ■ downscale – with rap
E
rr
o
r
(%
o
f
F
u
ll
S
c
a
le
)
Fig. 1