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Summary of Contents for Brooks Ar-Mite MT3750
- Page 1 Section 1 Introduction Brooks Ar-Mite MT3750C ® Ar-Mite Low Flow Armored Flowmeter Installation & Operation Manual Ar-Mite Model MT3750 Ar-Mite Model MT3750 Metal Tube Flowmeter Metal Tube Flowmeter with Transmitter or Inductive Alarm...
- Page 2 Read before proceeding! Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. These products must be properly installed, operated and maintained to ensure they continue to operate within their normal specifications. The following instructions must be adhered to and integrated into your safety program when installing, operating and maintaining Brooks Instrument products.
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Page 3: Table Of Contents
Contents Brooks Ar-Mite MT3750C ® Introduction Section 1 Description.................................1 Specifications ..............................1 Optional Equipment ............................4 Installation Section 2 General ................................12 Receipt of Equipment ............................12 Recommended Storage Practice........................12 Return Shipment...............................12 Transit Precautions ............................13 Removal From Storage ............................13 Installation of Flowmeter...........................13 Installation of Inductive Alarm ...........................13 Installation of Reed Switch Alarm ........................16... - Page 4 Contents Brooks Ar-Mite MT3750C ® Figure Page Number Number Model MT3750C with Transmitter ......................4 Power Supply vs. Maximum Load Resistance..................5 Transmitter Wiring Diagram ........................5 Model MT3750C with Reed Switch Alarm ....................6 Reed Switch Wiring Diagram ........................6 Model MT3750C with Inductive Alarm ....................7 Dimensions for MT3750C Threaded Connections Metal Tube Flowmeter with Indicator ......8...
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Page 5: Introduction Section
Brooks Ar-Mite MT3750C ® Description The Brooks Ar-Mite 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. - Page 6 (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. Brooks Ar-Mite MT3750C...
- Page 7 A sudden pressure spike situation may result in a fast movement of the float w ithin the VA flow meter & the float may hit hard against the float stop. Supply grounding connection by the process connections or earthing terminal. Brooks Ar-Mite MT3750C...
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Page 8: Optional Equipment
“On safety of the equipment operating under excessive pressure” TC N RU Д-U.AУ04.B.05988 TR CU 032/2013 Russia Custom Union Custom Union including Russia Explosion safety "On safety of the equipment for work in explosive environments" RU C-HU.ГБ08.B.00741 ТR СU 012/2011 (TR CU Ex) Brooks Ar-Mite MT3750C ®... -
Page 9: Power Supply Vs. Maximum Load Resistance
Section 1 Introduction Figure 1-2 Power Supply vs. Maximum Load Resistance Figure 1-3 Transmitter Wiring Diagram Brooks Ar-Mite MT3750C ®... -
Page 10: Model Mt3750C With Reed Switch Alarm
• Since part of flowmeter enclosure is made of painted aluminum, if it is mounted in group II, category 1 area, it must be installed such, that, ignition sources due to propagating brush discharge spar ks are excluded Figure 1-5 Reed Switch Wiring Diagram Brooks Ar-Mite MT3750C ®... -
Page 11: Model Mt3750C With Inductive Alarm
“On safety of the equipment operating under excessive pressure” U.AУ04.B.05988 TR CU 032/2013 Russia Custom Union Custom Union including Russia Explosion safety "On safety of the equipment for work in explosive environments" RU C-HU.ГБ08.B.00741 ТR СU 012/2011 (TR CU Ex) Brooks Ar-Mite MT3750C ®... -
Page 12: Dimensions For Mt3750C Threaded Connections Metal Tube Flowmeter With Indicator
Section 1 Introduction Figure 1-7 Dimensions for MT3750C Threaded Connections Metal Tube Flowmeter with Indicator Brooks Ar-Mite MT3750C ®... -
Page 13: Dimensions For Mt3750C Threaded Connections With Transmitter Or Inductive Alarm
Section 1 Introduction Figure 1-8 Dimensions for MT3750C Threaded Connections with Transmitter or Inductive Alarm Brooks Ar-Mite MT3750C ®... -
Page 14: Dimensions For Mt3750C Threaded Connections With Reed Switch Alarm
Section 1 Introduction Figure 1-9 Dimensions for MT3750C Threaded Connections with Reed Switch Alarm Brooks Ar-Mite MT3750C ®... -
Page 15: Dimensions For Mt3750C Panel Mounting
Section 1 Introduction Figure 1-10 Dimensions for MT3750C Panel Mounting Brooks Ar-Mite MT3750C ®... -
Page 16: Installation Section 2 General
If the packing case is damaged, the local carrier should be notified at once regarding his liability. A report should be submitted to the nearest Brooks Instrument location listed on the Global Service Network page on our website: BrooksInstrument.com/... -
Page 17: Transit Precautions
See UL 50, NEMA 250 and EN 60529. Most installations will require Type 4X or IP54 as a minimum installation. Installation of Inductive Alarm Brooks Ar-Mite MT3750C ®... -
Page 18: Typical Installation
It is the customers’ responsibility to clearly mark the apparatus when intrinsic safety is no longer valid. C. Connect the IS Alarm as shown in Figures 2-2 and 2-3. DUAL SWITCH: RELAY SHOWN P.&F. TYPE KF**-SR2-EX2.W Figure 2-2 Inductive Switch Wiring Diagram Brooks Ar-Mite MT3750C ®... -
Page 19: Inductive Switch Wiring
Section 2 Installation Figure 2-3 Inductive Switch Wiring Brooks Ar-Mite MT3750C ®... -
Page 20: Installation Of Reed Switch Alarm
“Alarm In” and to either “HI” for high flow alarm or “LO” for low flow alarm. Wires used should be in the range from 12 to 20 AWG. Remove 0.3 inches of insulation before inserting the wire into the terminal block and tightening the screw. Brooks Ar-Mite MT3750C ®... - Page 21 Section 2 Installation Ref. No. 981Z985 Rev G pg. 1 Figure 2-4 Reed Switch Alarm Installation Using IS Barriers. Brooks Ar-Mite MT3750C ®...
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Page 22: Reed Switch Alarm Wiring Using P & F Relay Unit
Ref. No. 981Z985 Rev G pg. 2 Figure 2-5 Reed Switch Alarm Installation Using P&F Relay Unit. Note: CSA (US and Cananda). Approved installations refer to Figures 2-3 and 2-4. Figure 2-6 Reed Switch Alarm Wiring Using P & F Relay Unit. Brooks Ar-Mite MT3750C ®... -
Page 23: Installation Of Transmitter
Section 2 Installation For electrical hook-up of units requiring intrinsically safe power connections, use Brooks optional power supply and relay connected as in Figure 2-6 for the integral alarm. Installation of Transmitter A. For intrinsically safe operation (recognized by a BLUE COVER),... -
Page 24: Transmitter Wiring Diagram For I.s. Systems
Section 2 Installation Figure 2-7 Transmitter Wiring Diagram for I.S. Systems Brooks Ar-Mite MT3750C ®... -
Page 25: Transmitter Wiring Diagram For Xp Systems
Section 2 Installation Figure 2-8 Transmitter Wiring Diagram for XP Systems Brooks Ar-Mite MT3750C ®... -
Page 26: Transmitter Wiring Diagram
Section 2 Installation Figure 2-9 Transmitter Wiring Diagram Brooks Ar-Mite MT3750C ®... -
Page 27: Operating Procedure
(parenthesis). Pre-Programmed Parameters Serial Number Flow Rate units of measure (gpm) Low Flow cutoff (5% FS flow) Analog Output LoRange (4 mA @ 0% flow) Analog Output HiRange (20 mA @ 100% flow) Brooks Ar-Mite MT3750C ®... -
Page 28: Operation Of Reed Switch Alarm
Adjustment of the distance between the sensor and the wall of the flow tube is made at the factory. This setting should not be altered. C.Two jumper configurations allow simultaneous use of both the high and Brooks Ar-Mite MT3750C ®... - Page 29 High, 40-75% J-1,4,6 Bottom Low, 30-60% of Slot Dual: High, 40-75% J-1,6,8 Region B Low, 10-45% (High Set) (Low Set) (1) These ranges for reference only. (2) Final sensor position may be slightly outside of these ranges. Brooks Ar-Mite MT3750C ®...
- Page 30 Section 3 Operation Figure 3-1 Reed Switch Alarm. Brooks Ar-Mite MT3750C ®...
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Page 31: Maintenance Section 4 General
Section 4 Maintenance Section 4 Maintenance General CAUTION It is important that this device only be serviced by properly trained and qualified personel. Brooks Ar-Mite MT3750C ®... -
Page 32: Service Information
(typically 2.6 mA). In this low-power mode the transmitter is directly powered from the RS232 port without the need of an external power supply. Software Kit (Calibration CD-ROM and RS232 Interface): partnumber: F535Y001ZZZ Brooks Ar-Mite MT3750C ®... -
Page 33: Parts List Section
Section 5 Parts List Section 5 Parts List General When ordering parts, please specify: Brooks Serial Number Model Number Part Description Quantity (Refer to Figure 5-1,and Tables 5-1, 5-2). Brooks Ar-Mite MT3750C ®... -
Page 34: Model Mt3750 Exploded View
Section 5 Parts List Figure 5-1 Model MT3750 Exploded View Brooks Ar-Mite MT3750C ®... -
Page 35: Essential Instructions Section A Essential Instructions
BROOKS SERVICE AND SUPPORT Brooks is committed to assuring all of our customers receive the ideal flow solution for their application, along with outstanding service and support to back it up. We operate first class repair facilities located around the world to provide rapid response and support.
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