Đồng hồ chân lưng có vành WIKA

Pressure connection
Material: copper alloy
1/4” NPT lower back mount (LBM)

Bourdon tube
Material: copper alloy
≤1,000 PSI: C-type, soldered
≥1,500 PSI: helical type, brazed

Movement
Copper alloy

Ranges
Vacuum / Compound to 200 psi
Pressure from 15 psi to 15,000 psi
or other equivalent units of pressure or vacuum

Dial
White aluminum with black lettering

Working pressure
Steady:3/4 scale value
Fluctuating:2/3 full scale value
Short time:full scale value

Pointer
Black aluminum

Operating temperature
Ambient:
-40°F to +140°F (-40°C to +60°C) - dry
-4°F to +140°F (-20°C to +60°C) - glycerine filled
Medium:
max. +140°F (+60°C) ≤1,000 psi
max. +212°F (+100°C) ≥1,500 psi

Case
Gold-painted forged brass with integral connection
and blowout plug with polished stainless steel front flange. Suitable for liquid filling

Temperature error
Additional error when temperature changes from
reference temperature of 68°F (20°C) ±0.4% for
every 18°F (10°C) rising or falling. Percentage of
span.

Window
Acrylic with Buna-N gasket

Weather protection
Weather resistant (NEMA 4 / IP 54)