1-2
Installation and Operation Manual
X-VA-1110-1140-eng
Part Number: 541B040AHG
March, 2008
Brooks
®
1110 and 1140 Series
Section 1 Introduction
Accuracy
Standard Flow Accuracy (127, 150, 250mm Tubes): ±2% Full Scale
Optional Flow Accuracy (127, 150, 250mm Tubes): ±1% Full Scale
Repeatability
0.5% Full Scale
Pressure Ratings
Refer to Table 1-1 for maximum non-shock pressure for rib guided and
plain tapered tubes.
Pressure Equipment Directive (PED) 97/23/EC See Table 1-1.
Scales
Standard: Detachable aluminum plate.
Length: 127mm, 150mm and 250mm.
Graduations: Choice of direct reading units, millimeter or percentage of
maximum flow.
Ambient Temperature Limits
33°F to 125°F (1°C to 52°C).
Operating Fluid Temperature Limits
Maximum: 250°F (121°C) for metallic end fittings
Reduced ratings on meters with nonmetallic end fittings. Refer to Table 1-1.
Minimum: 33°F (1°C)
Materials of Construction:
Metering Tube
Borosilicate glass.
Protective Tube Sleeve, Size 7 (1/2") and larger
UV stabilized polycarbonate.
Floats
(Figure 1-3)
Standard Sizes 2-7 (spherical): sapphire, tantalum, glass, Carboloy
®
, 316
stainless steel, Monel
®
(Size 7 only).
Standard Sizes 8-13: 316 stainless steel.
Optional Sizes 8-13: Hastelloy C
®
.
Float Stops
Standard, Sizes 2-8: 316 SS spring.
Optional, Sizes 2-8: Hastelloy C.
Standard, Sizes 9-13: Aluminum for brass & steel fittings, 316 SS for 316
stainless steel fittings.
Guide Rods and Cartridges
Standard: 316 stainless steel.
Optional: Hastelloy C.
