ĐỒNG HỒ ĐO ÁP SUẤT WIKA 633.50

Design
ASME B40.100 & EN 837-3
Sizes
2½", 4" & 6" (63, 100 and 160 mm)
Accuracy class
±1.6% of span
Ranges
2½" (63mm): 0...16" WC (40 mbar) to 0...250" WC (600 mbar)
4" (100mm): 0...6" WC (16 mbar) to 0...250" WC (600 mbar)
6" (160 mm): 0...1" WC (2.5 mbar) to 0...250" WC (600 mbar)
or other equivalent units of pressure or vacuum
Working pressure

Steady:           full scale value

Fluctuating:   0.9 x full scale value

Operating temperature
Ambient:        -4°F to +140°F (-20°C to +60°C)
Medium:         +212°F (+100°C) maximum
Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.6% of span for every 18°F (10°K) rising or falling.
Weather protection
Weather resistant (NEMA 3 / IP54)
With case flling (NEMA 4X / IP66)
Pressure connection
Material: 316L stainless steel
Lower mount (LM) or center back mount (CBM) - 2½" (63 mm)
Lower mount (LM) or lower back mount (LBM) - 4" & 6"
(100mm & 160mm)
1/4" NPT or 1/2" NPT limited to wrench flat area
Capsule element
Material: 316L stainless steel with Viton sealing ring
Movement
Stainless steel
Zero adjustment in front on dial
Dial
White aluminum with black lettering
Pointer
Black aluminum
Case
304 stainless steel with stainless steel bayonet ring
Window
Laminated safety glass, Acrylic for case flling (633.50)
Case fill
Silicone - Type 633.50
(only available for full scale ranges 40" WC)

Optional extras
* Other pressure connections
* ±1.0% accuracy (ASME B40.100 Grade 1A), available in ranges >16" WC (632.50) and >40" WC (633.50)
* SS front flange, 4" (100mm) and 6" (160mm) only
* U-clamp mounting, SS, 4" (100mm) and 6" (160mm) only
* Silicone case flling
* Over and underpressure protection
< 10" WC (25mbar): 3X of full scale
> 10" WC (25mbar): 10X of full scale
* Special connections limited to wrench flat area
* Custom dial layout
* With output signal, size 4" (100mm) only, from ranges > 25" WC (60 mbar)
* With inductive switch (831.XX), size 4" & 6" (100mm & 160mm), from ranges > 40" WC (100 mbar)