Standard
EN 837-1
ASME B40.100
For information on the “Selection, installation, handling and operation of pressure
gauges”, see Technical information IN 00.05.
Further version F
or oxygen, oil- and grease-free
Nominal size (NS)
Ø 100 mm [4"]
Ø 160 mm [6"]
Connection location
Lower mount (radial)
Window
Laminated safety glass
Case
Design Safety level “S3” per EN 837-1
With solid baffle wall and blow-out back
Measuring ranges ≤ 0 ... 16 bar [≤ 0 ... 300 psi] with compensating valve to vent and reseal case
Material
Stainless steel 1.4301 (304)
Stainless steel 1.4571 (316 Ti)
Ring
Bayonet ring, stainless steel
Mounting
Without
Panel mounting flange, stainless steel
Panel mounting flange, polished stainless steel
Surface mounting lugs on the back, stainless steel
Case filling (model 233.36)
Without
Glycerine
Glycerine-water mixture for NS 100 [4"] and 160 [6"] with measuring range
≤ 0 ... 2.5 bar [≤ 0 ... 40 psi] or for NS 63 [2 ½"] with measuring range ≤ 0 ... 4 bar
[≤ 0 ... 60 psi]
Silicone oil
Movement
Stainless steel
Measuring element
Type of measuring element Bourdon tube, C-type or helical type
Material
Stainless steel 1.4404 (316L)
Leak tightness
Helium tested, leakage rate: < 5∙10-3 mbar l/s
Helium tested, leakage rate: < 1∙10-6 mbar l/s
Accuracy specifications
Accuracy class
EN 837-1 Class 1.0 referred to the measuring span
ASME B40.100 ±1 % of measuring span (grade 1A)
Temperature
On deviation from the reference conditions at the measuring system:
≤ ±0.4 % per 10 °C [≤ ±0.4 % per 18 °F] of full scale value
Reference conditions
Ambient temperature +20 °C [68 °F]