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Table of Contents
Summary of Contents for Computer Weld GTFM IV
- Page 1 Computer Weld Technology, Inc. 10702 Old Bammel N Houston Rd. Houston, TX 77086 Phone: (713) 462-2118 Fax: (713) 462-2503 Email: cwt@cweldtech.com GTFM IV™ Gas Turbine Flow Monitor Operation / Installation Manual Manual Part Number: A8M5010 Revised: June 26, 2008...
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Page 3: Table Of Contents
RELAY CONNECTOR..........................11 CHANGING THE BATTERY ..................12 10.0 MODEL SPECIFICATIONS ..................13 10.1 120 VAC PORTABLE GTFM IV™ SYSTEM P/N: A0A0032..............13 10.2 240 VAC PORTABLE GTFM IV™ SYSTEM P/N: A0A0033..............14 10.3 ADM IV™ GTFM IV™ SYSTEM P/N: A0A0064..................15 10.4... - Page 4 10.6 GTFM IV™ RELAY CABLE P/N: A3W0259 .................... 18 10.7 GTFM IV™ AUX CABLE P/N: A3W0260....................19 10.8 GTFM IV™ ENCLOSURE ASSEMBLY P/N: A3W0179................. 20 10.9 GTFM IV™ MOUNTING DIMENSIONS ....................22...
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Page 5: Overview
1.0 Overview System Requirements The GTFM IV™ Gas Turbine Flow Monitor, is designed to permit the user to precisely measure the flow rates of the weld shielding gases. WARNING – DO NOT USE WITH ANY FLAMMABLE GASES. The unit comes in both "portable" and "in- line"... -
Page 6: Sensor Specifications
Note: Specifications subject to change without notification. Models The following models are covered in this document: Part No. Description A0A0032 120 VAC Portable GTFM IV™ System A0A0033 240 VAC Portable GTFM IV™ System A0A0064 ADM IV™ GTFM IV™ System A0A0036 120 VAC In-Line GTFM IV™... -
Page 7: Installation
2.0 Installation Options The GTFM can be used as a portable or in-line gas flow monitor. If the unit was purchased as a portable monitor, it will be equipped with a rubber gas cone. The cone is designed to fit standard torch gas cups and allows the GTFM to measure the actual gas flow at the torch. -
Page 8: Gas Flow Volume
NOTE: THE FAULT RELAY WILL ONLY BE ACTIVE WHEN POWER IS SUPPLIED VIA THE PLUG-IN TRANSFORMER OR AN EXTERNAL POWER SOURCE CONNECTED TO "AUX" CONNECTOR. Gas Flow Volume The GTFM can also be used to monitor accumulated gas flow and to provide an indication when the volume in a gas cylinder has reached a programmed minimum limit. -
Page 9: Operation
3.0 Operation Firmware Version The GTFM is supplied with a plug-in the wall transformer, which powers the GTFM and will also charge the optional internal battery. Plug the transformer into a suitable ac receptacle, and connect the power cable into the "POWER" jack located on the bottom panel of the GTFM. -
Page 10: Battery Specifications
Test time that the flow must be continuously T### out of limits before activating the fault relay (0.01 seconds). P### The peak gas flow value detected (cfh/lpm) The peak gas flow value detected (cfh/lpm) that when reached, will provide a low gas volume M### fault indication (Flashing "G"... -
Page 11: Setting Gas Flow Control Limits
4.0 SETTING GAS FLOW CONTROL LIMITS Description To use the GTFM as a Sure-Flow gas switch, the user can set the upper ("H") and Lower ("L") limits by using the "PGM" toggle switch. The GTFM will activate the internal fault relay as long as the gas flow remains above the lower limit and below the upper limit. -
Page 12: Gas Flow Surge "P" Measurement
"P" 5.0 GAS FLOW SURGE MEASUREMENT Description The GTFM has a peak value "sample and hold" feature. This allows the user to measure the maximum gas flow rate, which occurred during the welding cycle. The maximum value is the result of a gas surge, which occurs when the gas solenoid is activated. -
Page 13: Gas Flow Usage "U" Measurement
"U" 6.0 GAS FLOW USAGE MEASUREMENT Description The GTFM has a gas flow accumulator, which can be used to display total gas usage. This function allows the user to measure the total cubic ft. or liters of gas used from the last time that the accumulator was reset. The maximum volume displayed is 999 cubic ft. -
Page 14: Gas Cylinder Low Volume Measurement
7.0 GAS CYLINDER LOW VOLUME MEASUREMENT Description The GTFM can be used to provide the user with an indication of when the volume in a cylinder of gas is reaching a low level. To use this function the user must set the starting volume in the cylinder and a minimum value for testing. -
Page 15: Gtfm Connector Pin Assignment
8.0 GTFM CONNECTOR PIN ASSIGNMENT AUX Connector The following is the pin assignment for the "AUX" sensor connector: Pin No. Function + Power input (10 - 24 vdc @ 100ma) + Analog gas flow rate output - Analog gas flow rate output Common power input Common power input Plug - "LEMO"... -
Page 16: Changing The Battery
9.0 CHANGING THE BATTERY To open the unit, remove the eight (8) screws on the sides of the box. Do not remove the two socket screws in the brass fittings on each side of the box where the inlet/outlet holes are. Carefully lift the cover off. Unplug the battery from JP4. Install the new battery pack and plug the battery onto JP4. -
Page 17: Model Specifications
10.0 MODEL SPECIFICATIONS 10.1 120 VAC Portable GTFM IV™ System P/N: A0A0032 ITEM PART NO DESCRIPTION A3A0179 GTFM4 Enclosure Assembly X3B5008 Rechargeable Battery A2M0170 Hose/Cone Assembly X3T5036 120VAC Power Supply... -
Page 18: 240 Vac Portable Gtfm Iv™ System P/N: A0A0033
10.2 240 VAC Portable GTFM IV™ System P/N: A0A0033 ITEM PART NO DESCRIPTION A3A0179 GTFM4 Enclosure Assembly X3B5008 Rechargeable Battery A2M0170 Hose/Cone Assembly X3T5047 240VAC Power Supply... -
Page 19: Adm Iv™ Gtfm Iv™ System P/N: A0A0064
10.3 ADM IV™ GTFM IV™ System P/N: A0A0064 ITEM PART NO DESCRIPTION A3A0179 GTFM4 Enclosure Assembly A3W0288 GTFM4 Aux. Cable A3E0104 GTFM4 Mounting Bar #10-32 x 1/2" Lg. Socket Flat Hd. Screw X6F5093 Adaptor Fitting X6F5094 Barb Fitting X6F5095 "B" Size Nut... -
Page 20: 120 Vac In-Line Gtfm Iv™ System P/N: A0A0036
10.4 120 VAC In-Line GTFM IV™ System P/N: A0A0036 ITEM PART NO DESCRIPTION A3A0179 GTFM4 Enclosure Assembly X3T5036 120VAC Power Supply A3E0104 GTFM4 Mounting Bar #10-32 x 1/2" Lg. Socket Flat Hd. Screw X6F5093 Adaptor Fitting X6F5094 Barb Fitting X6F5095... -
Page 21: 240 Vac In-Line Gtfm Iv™ System P/N: A0A0037
10.5 240 VAC In-Line GTFM IV™ System P/N: A0A0037 ITEM PART NO DESCRIPTION A3A0179 GTFM4 Enclosure Assembly X3T5047 240VAC Power Supply A3E0104 GTFM4 Mounting Bar #10-32 x 1/2" Lg. Socket Flat Hd. Screw X6F5093 Adaptor Fitting X6F5094 Barb Fitting X6F5095... -
Page 22: Gtfm Iv™ Relay Cable P/N: A3W0259
10.6 GTFM IV™ Relay Cable P/N: A3W0259 ITEM PART NO DESCRIPTION X3P5627 3 Circuit Plug X3P5629 Yellow Strain Relief X3W5025 3 Conductor Shielded Cable WIRE COLOR FROM DESCRIPTION Black Pin 1 Relay Common Clear Pin 2 Relay N.C. Pin 3... -
Page 23: Gtfm Iv™ Aux Cable P/N: A3W0260
10.7 GTFM IV™ Aux Cable P/N: A3W0260 ITEM PART NO DESCRIPTION X3P5628 5 Circuit Plug X3P5629 Yellow Strain Relief X3W5037 4 Conductor Shielded Cable WIRE COLOR FROM DESCRIPTION Pin 1 Power (10 - 28 vdc) White Pin 2 VOUT+ (0 - 2.55 vdc) -
Page 24: Gtfm Iv™ Enclosure Assembly P/N: A3W0179
10.8 GTFM IV™ Enclosure Assembly P/N: A3W0179... - Page 25 ITEM PART NO DESCRIPTION A2M0191 GTFM Small Screen A2M0192 GTFM Large Screen A2M0193 GTFM Display Lens A2M0195 GTFM4 Inlet Adaptor A2M0196 GTFM4 Outlet Adaptor A3A0180 GTFM4 Switch Assembly A3E0100 GTFM4 Enclosure A3E0101 GTFM4 Cover A3E0103 GTFM4 Overlay A5A0094 GTFM4 Dual P.C.B. Assembly A5I0010 GTFM4 Eprom X3Q5002...
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Page 26: Gtfm Iv™ Mounting Dimensions
10.9 GTFM IV™ Mounting Dimensions Rear View Side View Installation with Threaded Inserts Rear View Side View Installation with Mounting Bar...
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