Catalogue Process Gauges Type 1279
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Range Tables
Ashcroft® Duragauge® Pressure gauge manufacturer
Standard Ranges
Metric Ranges
Pressure
- psi
Range
Figure interval
Minor graduation
0/15
1
0.1
0/30
5
0.2
0/60
5
0.5
0/100
10
1
0/160
20
2
0/200
20
2
0/300
50
2
0/400
50
5
0/600
50
5
0/800
100
10
0/1000
100
10
0/1500
200
20
0/2000
200
20
0/3000
500
20
0/5000
500
50
0/6000
500
50
0/10,000
1000
100
0/20,000
2000
200
0/30,000
5000
200
0/50,000
5000
500
0/80,000
10,000
1000
0/100,000
10,000
1000
Compound
Range
Figure interval
Minor graduation
in Hg
psi
in Hg
psi
30" Hg/15 psi
5
3
0.5
0.2
30" Hg/30 psi
10
5
1
0.5
30" Hg/60 psi
10
10
1
1
30" Hg/100 psi
10
10
2
1
30" Hg/150 psi
10
20
5
2
30" Hg/200 psi
30
20
5
2
30" Hg/300 psi
30
50
5
2
30" Hg/400 psi
30
50
5
5
30" Hg/500 psi
30
50
5
5
30" Hg/600 psi
30
50
10
5
Combination
Range
Figure interval
Minor graduation
inner—psi
outer—ft H2O
psi
ft H2O
psi
ft H2O
0/15
0/34
3
5
0.5
0.5
0/30
0/70
5
10
0.5
1
0/60
0/140
5
20
0.5
5
0/100
0/230
10
20
1
2
0/160
0/370
20
50
2
5
0/200
0/460
20
50
5
5
0/300
0/690
25
100
5
10
Vacuum
Range
Figure interval
Minor graduation
30/0 in. Hg
5 in
0.2 in
34/0 ft H2O
5 ft
0.5 ft
Retard
Range
Figure interval
Minor graduation
0/15 psi retard to 30 psi
1 psi-30 psi
0.25 psi-5 psi
0/30 psi retard to 60 psi
2 psi-60 psi
0.2 psi-10 psi
0/60 psi retard to 100 psi
2 psi-100 psi
0.5 psi-10 psi
30" Hg vac/75 psi retard to 150 psi
5" Hg/15 psi-150 psi
1" Hg/1 psi-5psi
10" Hg vac/5 psi
2" Hg/1 psi
0.2" Hg/0.1 psi
retard to 30" Hg vac
30" Hg
5" Hg
retard to 30 psi
30 psi
5 psi
Pressure - kg/c
m2 and bar
Range
Figure interval
Minor graduation
Outer scale in psi
0/1
0.1
0.01
0/14
0/1.6
0.2
0.02
0/22
0/2.5
0.5
0.02
0/35
0/4
0.5
0.05
0/55
0/6
0.5
0.05
0/85
0/10
1
0.1
0/140
0/16
2
0.2
0/220
0/25
5
0.2
0/350
0/40
5
0.5
0/550
0/60
5
0.5
0/850
0/100
10
1
0/1400
0/160
20
2
0/2200
0/250
50
2
0/3500
0/400
50
5
0/5500
0/600
50
5
0/8500
0/1000
100
10
0/14,000
0/1600
200
20
0/22,000
0/2500
500
20
0/35,000
0/4000
500
50
0/55,000
0/6000
1000
50
0/85,000
Compound - kg/cm2 and bar
Range
Figure interval
Minor graduation
Outer scale in psi
-1/0/1.5
0.2
0.02
30" Hg/20
-1/0/3
0.5
0.05
30" Hg/40
-1/0/5
0.5
0.05
30" Hg/70
-1/0/9
1
0.01
30" Hg/125 30" Hg/215
-1/0/15
2
0.02
-1/0/24
5
0.02
30" Hg/340
Vacuum - kg/cm2 and bar
Range
Figure interval
Minor graduation
Outer scale
-1/0
0.1
0.01
30" Hg
Graduations and figure intervals
All Ashcroft dials have various total graduation marks, figure inter­vals and minor graduations. Stan­dard dual scale metric ranges have a dominant metric inner scale. The outer scale is specified in psi. Some examples are shown. Dura-gauge gauges are made in accor­dance with ASME B40.1 entitled, "Gauges, Pressure, Indicating Dial Type - Elastic Element," Accuracy grade 2A (±0.5% of span). The accuracy of a retard range gauge applies only to the expanded por­tion of the scale. The error in the compressed portion is -10% to +20% of the span. Maximum pressure at which a gauge is con­tinually operated should not exceed 75% of full scale range. Consult customer service in Stratford, CT for non-standard dials.
Minor Graduations
Figure Intervals
Total Graduation
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