Đồng hồ dầu chân thẳng WIKA

Design
EN 837-1 & ASME B40.100

Pressure connection
Material: copper alloy
1/8” or ¼” NPT (¼” not available in 1½” case size)
Lower mount (LM) or center back mount (CBM)
(1½” size only available with CBM connection)

Sizes
1½”, 2” & 2½” (40, 50 & 63 mm)

Bourdon tube
Material: copper alloy
3 0” Hg (Vac) to 800 psi C-type
1000 psi to 6000 psi helical type

Accuracy class
± 3/2/3% of span (ASME B40.100 Grade B)

Movement
Copper Alloy

Ranges (All ranges not stocked)
Vacuum / Compound to 200 psi
Pressure from 15 psi to 6,000 psi

Dial
White ABS with stop pin and black lettering

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

Pointer
Black ABS

Operating temperature
Ambient: -4°F to 140°F (-20°C to 60°C)
Media: 140°F (+60°C) maximum

Case
1½”: black ABS
2” & 2½”: black ABS with integral profile ring
O-ring seal between case and socket
Ranges <_ 100 psi with internal pressure compensation

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, ultrasonically welded to case

Weather protection
Weather tight (IP 65), NEMA 4X

Case fill
Glycerine 99.7%