Brooks Ar-Mite MT3750, Installation & Operation Manual

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Section 1 Introduction
Brooks
®
Ar-Mite
TM
MT3750C
Brooks
®
Ar-Mite
TM
MT3750C
2
Table 1-1 MT3750C Specifications
Table 1-2 MT3750C Capacities
Specifications
MT3750C
Measuring Range See Capacities Table 1-2
Rangeability 10:1 (most sizes)
Metering Tube 316L (stainless steel)
Monel K-500
End Fittings 316L (stainless steel)
Monel K-500
Accuracy 5%, 3%, VDI/VDE class 4, 2.5
Repeatability 1% Full Scale
Scale Silver increments with black background - Aluminum Material (52 mm long), single or dual
Connections 1/4” to 3/4”NPT Female
1/4”, 6 mm tube compression
Floats 316L stainless steel
Titanium Gr. II
O-rings Viton
®
fluoroelastomers
PTFE Teflon
®
, Buna-N, Kalrez
®
4079 perfluoroelastomers, Ethylene Propylene
Protection Category (Alarms) IP65/NEMA 4X, (Transmitter) IP66/67/NEMA 4X
Indicator Housing & Cover Die cast Aluminum (Alloy 380), epoxy paint, glass window
Maximum Fluid Temperature 204°C/400°F (Refer to Tables 1-4 & 1-5)
Maximum Fluid Pressure 1500 PSIG (100 Bar)
4000 PSIG (276 Bar) (No valve, 1/4” NPT only)
Meter Dimensions Refer to Figures on Pages 1-8 thru 1-11
Pressure Equipment Directive Flowmeter complies under Sound Engineering Practices (SEP)
(PED) 2014/68/EU
RoHS Products conform to the European Restriction of Hazardous Substances (RoHS) Directive 2011/65/EU
Inductive Alarm Switches 1 or 2 inductive switches
Reed Switches 1 or 2 switches
Transmitter 4-20 mA output
Agency Approvals Refer to Tables 1-6 thru 1-9
Optional Equipment Cartridge or NRS TM valves
Integrally mounted flow controllers
Meter Meter Meter Meter Meter Flow Range Flow Range Flow Range Flow Range Flow Range Viscosity Viscosity Viscosity Viscosity Viscosity Pressure Pressure Pressure Pressure Pressure
Size Size Size Size Size Water Water Water Water Water Air Air Air Air Air (1, 2) (1, 2) (1, 2) (1, 2) (1, 2) Limit Limit Limit Limit Limit (3) (3) (3) (3) (3) Drop Drop Drop Drop Drop
gph gph
gph gph gph
l/h l/h
l/h l/h l/h
ln/h ln/h
ln/h ln/h ln/h
scfh scfh
scfh scfh scfh
m m
m m m
33333 n/h n/h
n/h n/h n/h
CP CP
CP CP CP
mBar mBar
mBar mBar mBar
Inches WC Inches WC
Inches WC Inches WC Inches WC
0 0.025-0.25 0.096-0.96 4.3-43 0.16-1.6 - 5 12 4.8
1 0.034-0.34 0.13-1.3 5.6-56 0.21-2.1 - 10 12 4.8
2 0.096-0.96 0.36-3.6 13.0-120 0.5-4.9 - 20 12 4.8
3 0.29-2.8 1.0-10 - 1.2-12 0.033-0.33 35 12 4.8
4 0.55-5.5 2.1-21 - 2.5-23 0.063-0.62 70 32 12.8
5 1.1-11 4.2-42 - 5.4-53 0.15-1.3 100 38 15.3
6 2.8-26 11-100 - 12-110 0.31-3.1 130 44 17.7
Notes:
1. Air flows in scfh converted to 70°F and 14.7 psia when the meter is operated at 70°F and 14.7 psia.
2. Air flows in m
3
n/h (converted to normal conditions: 0° and 1.013 bar abs) when the meter is operated at 1.013 bar abs and 20°C.
3. When the viscosity of the fluid exceeds the viscosity immunity ceiling (VIC), a calculated correction is applied to account for the difference between factory calibration
fluid and process fluid.