SR50 Bench Portable Welder Operations & Instruction Manual Whatever stage of development your production line is in, TTL have the products to help you produce temperature sensors quicker, easier and more efficiently.

Temperature Technology Ltd. Sales: +44 (0)1189 730 739 Fax: +44(0)1189 737 222 [email protected] www.temperaturetechnology.com

1.0 What is Capacitance Welding? An electrical charge at a preset energy level is stored. This charge is then released across two electrodes, the positive electrode being the workpiece. This discharge of stored energy is sufficient to weld the workpiece. Capacitance welding is generally used for the welding of similar and dissimilar wires (thermocouple junction welds) and for impact welding wires to a conductive material. 2.0 Installation and set up. 2.1 Mains connection. TheSR50 is a battery / mains powered device. If running from mains power connect the mains adaptor to the charger socket on...

Temperature Technology Ltd. Sales: +44 (0)1189 730 739 Fax: +44(0)1189 737 222 [email protected] www.temperaturetechnology.com Operating Instructions 3.2 Preparing wires. Insulated wires should have their insulation stripped sufficiently to allow at least 2mm to protrude when gripped in the pliers. They should be laid side by side and in contact and the ends square and level. With smaller diameter wires it will be found advantageous to twist them together before trimming. This also applies when welding stranded wires together or stranded wires to solid wires, e.g. when fitting flexible...

The weld switch (or footswitch) is then depressed and the resulting discharge will weld the wires to the surface after which the weld clip can be removed. See fig.4.2. 4.3 Pt100 elements. The SR50 can be used for attaching wires to Pt100 (or other types of sensing element) to manufacture resistance thermometers. Where possible, the element lead wires should be lightly twisted around the prepared extension in reversed plane (see fig 4.3a) wires to ensure a good contact. These wires are then gripped in the wire holding pliers. If the wires cannot be twisted (eg if using a muliticore cable) then hold...

Temperature Technology Ltd. Sales: +44 (0)1189 730 739 Fax: +44(0)1189 737 222 [email protected] www.temperaturetechnology.com Operating Instructions Indicators and Controls: LED indication: Indicates battery status. Wait lamp: To prevent premature discharge. Weld switch: Releases energy from capacitors. Potentiometer: Sets energy level. On/off switch and power on indicator. Accessories included: Mains powered battery charger. Plier electrodes. Impact Weld Clip. Welding goggles. Accessories optional: Footswitch. Tweezer Electrodes. 6.0 Maintenance. Apart from carbon electrode replacement,...

Temperature Technology Ltd. Sales: +44 (0)1189 730 739 Fax: +44(0)1189 737 222 [email protected] www.temperaturetechnology.com CE Marked. The HSC-1 complies with EMC directives and safety requirements.