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]