Dwyer Instruments GFM2 Series Installation And Operating Instructions Manual Download Page 21

Page: 21 / 21

Printed in U.S.A. 5/13

FR# RA-444052-00

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000

www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Fax: 219/872-9057

e-mail: [email protected]

Page 20

Summary of Contents for GFM2 Series

Page 1: ...thin 2 of actual flow Output Signal Linear 0 to 5 VDC 3000 min load impedance and 4 to 20 mA 500 max loop resistance Relay Rating 1 A 24 VDC Max Particulate Size 5 microns Temperature Limits 32 to 122...

Page 2: ...ass Flow Meter Installation and Operating Instructions Bulletin F GFM2 DWYER INSTRUMENTS INC Phone 219 879 8000 www dwyer inst com P O BOX 373 MICHIGAN CITY INDIANA 46360 U S A Fax 219 872 9057 e mail...

Page 3: ...7 6 2 Flow Path Cleaning 7 6 2 1 Restrictor Flow Element RFE 7 6 2 2 GFM2 Models 7 7 Calibration Procedures 8 7 1 Flow Calibration 8 7 2 Gas Flow Calibration of GFM2 Mass Flow Meters 8 7 2 1 Connecti...

Page 4: ...thorough leak test of the entire system All GFM2 s are checked prior to shipment for leakage within stated limits See specifications in this manual 2 2 Electrical Connections GFM2 is supplied with a 2...

Page 5: ...nterface or optional Profibus DP interface GFM2 flow meters support various functions including programmable flow totalizer low high or range flow alarm automatic zero adjustment activated via local b...

Page 6: ...peration of the meter above 110 of maximum calibrated flow may increase recovery time 5 3 GFM2 Parameters Settings 5 3 1 Engineering Units Settings The GFM2 Mass Flow Meter is capable of displaying fl...

Page 7: ...nitrogen for up to 36 gases are stored in the GFM2 see APPENDIX II In addition provision is made for a user defined conversion factor Conversion factors may be applied to any of the ten gas calibrati...

Page 8: ...to disassemble the sensor If blockage of the sensor tube is not alleviated by flushing through with cleaning fluids please return meter for servicing 6 2 1 Restrictor Flow Element RFE The Restrictor...

Page 9: ...s the sensor Average reading must be in the range 120 10 counts If it is not perform Auto Zero procedure see section 5 3 10 Zero Calibration 7 2 3 Gas Linearization Table Adjustment Gas flow calibrati...

Page 10: ...RS 232 SOFTWARE INTERFACE COMMANDS 8 1 General The standard GFM2 comes with an RS 485 interface For the optional RS 232 interface the start character and two hexadecimal characters for the address mu...

Page 11: ...command can be used only when absolutely no flow thru the meter and no earlier then 6 minutes after power up It can take several minutes to complete Unit will not respond to other commands when this...

Page 12: ...R read current totalizer volume W warm up delay S setting status D disable sets K 1 I internal K factor U user specified factor S status FS mL sec mL min mL hr L sec L min L hr m3 sec m3 min m3 hr f3...

Page 13: ...w measurement LCD display reading does correspond to the correct flow range but 0 5 Vdc output signal does not change always the same reading or around zero LCD display reading and 0 to 5 Vdc output v...

Page 14: ...nsor temperature is too high MCU temperature is too high overload Fatal Error EEPROM or Auto Zero error Solution Flush clean or disassemble to remove impediments or replace the filter screen see secti...

Page 15: ...rent Gas Table Number 0 9 Current Units of Measure 0 22 Alarm Mode E Enabled D Disabled Low Flow Alarm Setting FS 0 Disabled High Flow Alarm Setting FS 0 Disabled Flow Alarm Action Delay 0 3600 sec 0...

Page 16: ...Flow in PFS 0 6 70 0 FS A D Value from Sensor counts Actual Flow in PFS 0 7 80 0 FS A D Value from Sensor counts Actual Flow in PFS 0 8 90 0 FS A D Value from Sensor counts Actual Flow in PFS 0 9 100...

Page 17: ...n 114 C2Cl2F4 Freon 115 C2ClF5 Freon C318 C4F8 Germane GeH4 Germanium Tetrachloride GeCl4 Helium He 50 L min Helium He 1 50 L min Helium He 2 10 50 L min Index 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...

Page 18: ...butyl Aluminum C4H9 AL Titanium Tetrachloride TiCl4 Trichloro Ethylene C2HCl3 Trimethylamine CH3 3N Tungsten Hexafluoride WF6 Uranium Hexafluoride UF6 Vinyl Bromide CH2CHBr Vinyl Chloride CH2CHCl Xeno...

Page 19: ...APPENDIX IV Component Diagram Top Component Side Bottom Component Side Page 18...

Page 20: ...s required The Series GFM3 is not field serviceable and should be returned if repair is needed Field repair should not be attempted and may void warranty See 1 3 WARRANTY RETURN Refer to Terms and Con...

Page 21: ...wyer Instruments Inc Printed in U S A 5 13 FR RA 444052 00 DWYER INSTRUMENTS INC Phone 219 879 8000 www dwyer inst com P O BOX 373 MICHIGAN CITY INDIANA 46360 U S A Fax 219 872 9057 e mail info dwyer...