We have made every effort to ensure that the information in this manual is accurate and adequate. Should questions arise, or if you have suggestions for improvement of this manual, please contact us at the above location/numbers. Amada Miyachi America is not responsible for any loss due to improper use of this product. THERMOCOUPLE WELDER 990-070...
SAFETY NOTES This instruction manual describes how to operate, maintain and service the Thermocouple Welder, and provides instructions relating to its SAFE use. Procedures described in this manual MUST be performed, as detailed, by QUALIFIED and TRAINED personnel. For SAFETY, and to effectively take advantage of the full capabilities of the tester, please read these instruction manuals before attempting to use the workstation.
CONTENTS Page Revision Record ............................ii Foreword ..............................iii Safety Notes .............................. iv CHAPTER 1: SYSTEM DESCRIPTION ..................1-1 Introduction ..........................1-1 Power Supply ..........................1-1 Description ........................1-1 Line Voltage ........................1-1 Line Current Ratings ......................1-1 60/50 Hz Operation ......................1-2 Standby Power ........................
Page 6
Factory Service Repair ...................... 5-2 ILLUSTRATIONS Figure Title Page Front and Back Picture of TCW ..................1-2 TCW Schematic, Sheet 2, Power Connections ..............2-2 Wire Clamp Jaw Assembly ....................2-4 Thermocouple Wire Insertion Procedure ................3-1 THERMOCOUPLE WELDER 990-070...
LIMITED WARRANTY 1. (a) Subject to the exceptions and upon the conditions set forth herein, Seller warrants to Buyer that for a period of one (1) year from the date of shipment (“Warranty Period”), that such Goods will be free from material defects in material and workmanship.
(g) All expendables such as electrodes are warranted only for defect in material and workmanship which are apparent upon receipt by Buyer. The foregoing warranty is negated after the initial use. (h) Subject to Section 1(e) and Section 1(f) above, with respect to any such Goods during the Warranty Period, Seller shall, in its sole discretion, either: (i) repair or replace such Goods (or the defective part) or (ii) credit or refund the price of such Goods at the pro rata contract rate, provided that, if Seller so requests, Buyer shall, at Buyer’s expense, return such Goods to Seller.
(6) months after the date of shipment, whichever occurs first. Acceptance Tests: Acceptance Tests (when required) shall be conducted at Amada Miyachi America, Inc., Monrovia, CA, USA (the “Testing Site”) unless otherwise mutually agreed in writing prior to issuance or acceptance of the Acknowledgement.
Seller further warrants that all Services performed by Seller’s employees will be performed in a good and workmanlike manner. Seller’s sole liability under the foregoing warranty is limited to the obligation to re-perform, at Seller’s cost, any such Services not so performed, within a reasonable amount of time following receipt of written notice from Buyer of such breach, provided that Buyer must inform Seller of any such breach within ten (10) days of the date of performance of such Services.
Line Voltage Line voltage is 115, 208, or 230 Volts, 60/50 Hz. The Thermocouple Welder (TCW) is a multi-voltage unit is normally connected for 115V, 60/50 Hz operation unless otherwise specified on the nameplate and the label attached to the line cord.
CHAPTER 1: SYSTEM DESCRIPTION 60/50 Hz Operation The TCW is a dual-frequency machine that does not require calibration for operation at 50 or 60 Hz. Standby Power Standby power is approximately 15 watts. Stored Energy Rating 1.5 to 190 watt-seconds (joules).
The Line Failure Turndown is a safety feature which ensures that the capacitor bank is automatically discharged whenever the input power is interrupted. Weld Fire Lockout This feature helps prevent poor welds by inhibiting firing of the TCW until the energy stored in the capacitor bank is within 1% of the pre-selected value. Power Switch A rocker switch disconnects both sides of the input power line when switched to the “OFF”...
The Model TCW Handpiece is not supplied with any Wire Clamp Jaw Assemblies. A single Wire Clamp Jaw Assembly of the proper gauge is required to operate the TCW. Four Wire Clamp Jaw Assemblies are available for use with different gauge wires. The table below defines which Wire Clamp Jaw Assembly should be used with each wire diameter size.
Double earth grounded techniques eliminate the possibility of electrical shock to the operator. The Handpiece used to hold the thermocouple wires is earth grounded to the TCW chassis using a non- removable cable. The length of the cable prevents injury to the Handpiece should it fall off a table or bench that is a minimum of 30 inches high.
NOTE: For this system to be economical, the user must eliminate all leaks in the gas system feeding the Model TCW. When the input power is on, gas flow is continuous. An internal gas reservoir, located between the purge gas input connector and the shutoff solenoid, stores a sufficient amount of argon purge gas to immediately clear out the Weld Chamber when the TCW is turned back on.
The TCW was assembled at the factory for operation at a specific line voltage. If the TCW is used on a line voltage other than the one for which it is connected, serious damage can result. Most Thermocouple Welders are shipped from the factory wired for 115 volt, 50/60 Hz operation.
The recommended tolerance on Strip Length is –0, +.010 inches (-0, +0.25 mm). Any strip length greater than those shown above is acceptable. The TCW Handpiece can be used with non-insulated thermocouple wire. Non-insulated wire must protrude a MINIMUM of .135 inches (3.43 mm) from the closed Wire Clamp Jaws.
CHAPTER 2: INSTALLATION Handpiece – Wire Clamping Jaws Installation Wire Clamp Jaw Removal and Insertion Loosen the set screws that hold each Wire Clamp Jaw in place. Pull each jaw straight out of the Handpiece. See figure 2-2. Upper Setscrew Align Here Upper Wire Clamp Jaw...
Switch the POWER SWITCH to “ON”. Purge gas from the reservoir will immediately fill the Weld Chamber, making the TCW ready to use. When replacing the purge gas tank or if the purge gas line has been opened, wait 5 minutes for the purge gas to replace the air in the purge gas line, reservoir, and Weld Chamber.
Weld Chamber. When the ends of the thermocouple wires touch the Arc Button, located inside the Weld Chamber, a solenoid lightly clamps the Wire Clamp Jaws and then automatically fires the power supply. Remove the Handpiece after the “thump” sound has occurred, which indicates that the TCW has fired.
Buildup occurs faster with large gauge wires such as 20-22 AWG and usually appears as a bright metallic deposit on the face of the Arc Button. Should this occur, return the unit to Amada Miyachi America. See Chapter 5, Section III, Repair Service. THERMOCOUPLE WELDER...
SERVICE Section I: Calibration The Model TCW does not require calibration. Component tolerances and stability are such that the Capacitor Bank Voltage will not vary from Power Supply to Power Supply by more than 4% for the same WIRE GAUGE SELECTOR setting.
Section III. Repair Service Technical Assistance If you need further technical assistance, please contact either your authorized service agent or Amada Miyachi America at the postal or e-mail address or telephone or FAX number shown in the Foreword of this manual.
Page 27
http://www.amy.amada.co.jp/e/ AMADA MIYACHI AMERICA, INC. 1820 South Myrtle Ave., Monrovia, CA 91016, U.S.A. TEL. +1‐626‐303‐5676 FAX. +1‐626‐358‐8048 http://amadamiyachi.com AMADA MIYACHI CO., LTD. 200, Ishida, Isehara‐shi, Kanagawa 259‐1196, Japan AMADA MIYACHI KOREA CO., LTD. 28, Dongtanhana 1‐gil, Hwaseong‐si, Gyeonggi‐do, 445320, Korea TEL. +82‐31‐8015‐6810 FAX. +82‐31‐8003‐5995 AMADA MIYACHI SHANGHAI CO., LTD. Room01,15th Floor, SML Center, No.610 Xujiahui Road, Huangpu District, Shanghai 200025, China TEL. +86‐21‐6448‐6000 FAX. +86‐21‐6448‐6550 AMADA MIYACHI EUROPE GmbH Lindberghstrasse 1, DE‐82178 Puchheim, Germany TEL. +49‐89‐839403‐0 FAX. +49‐89‐839403‐10 AMADA MIYACHI TAIWAN CO., LTD.
Page 28
AMADA MIYACHI AMERICA, INC. 1820 South Myrtle Ave., Monrovia, CA 91016, U.S.A. TEL. +1‐626‐303‐5676 FAX. +1‐626‐358‐8048 ...
Need help?
Do you have a question about the TCW and is the answer not in the manual?
Questions and answers