Brooks Instrument 3750 - Manual (Page 7)

1-1
Installation and Operation Manual
X-VA-MT3750C-eng
Part Number: 541B063AAG
April, 2014
Brooks ® Ar-Mite TM MT3750C
Section 1 Introduction
1-1 Description
The Brooks ® Ar-Mite TM is a reliable, low flow metal tube flowmeter with
316L stainless steel wetted parts. The magnetically coupled indicator
provides a highly reliable method of indication. This model is a practical
and economical approach to low flow rate indication for high pressure and
difficult to handle fluids. Optional accessories include 4-20 mA output,
Needle Valve, Flow Controllers and Alarms.
1-2 Specifications
Performance Specifications
Flow
Liquids up to 100 l/h or 26 GPH (Water equiv.)
Gases up to 3.1 m
3 n/h or 120 SCFH (Air equiv.)
(See Table 1-1 for more information)
Accuracy
±5% Full Scale, Class 4 to VDE/VDI 3513,
Optional ±3% Full Scale, Class 2.5 to VDE/VDI 3513
Repeatability
1% full scale
Pressure Ratings
Maximum fluid pressure:
All non-flanged meters: 1500 psig (100 bar)
Flange connections: (Refer to Table 1-2)
Optional maximum operating pressure: 4000 psig
(276 bar) (no valve, 1/4" NPT option only)
Scales
Length - 52 mm, nominal
Types - Detachable aluminum direct reading scales in engineering and
reference units
Operating Fluid Temperature Limits
Indicator: -20°F(-29°C) to 400°F (204°C)
Alarm: -20°F(-29°C) 250°F (120°C)
Transmitter: -20°F(-29°C) 180°F (82°C)
Ambient Temperature:
Indicator: -58°F(-50°C) to 150°F(65°C)
Alarm: -20°F(-29°C) to 150°F(65°C)
Transmitter: -20°F(-29°C) to 150°F(65°C)
(Refer to Table 1-3)