Temperature measurement device offers high precision

The WCU unit is designed for users that need to make measurements fast and easily, while maintaining the highest level of accuracy.

It comes with a large, non-backlight display.

It is ESD safe, so can be used in EPA (ESD Protected Area); this compactly designed, battery-powered device can easily be shared between different workstations and its auto off function extends battery life.

It allows for high precision measurements within 10”, with a counter (to replace sensors, for example).

A professional control unit that controls soldering and reworking tools must ensure the precision of its working parameters. Some technologies have individual settable temperatures, in step increments of 1°, others work with fixed temperature tips.

In both cases it is crucial to be sure about the actual working temperature to ensure a safe and repeatable process. 

The advanced Weller professional soldering technologies use a closed loop temperature regulation to monitor the temperature of the tip via a high-quality Platinum sensor. It adjusts automatically the power to the silver core heating element according to the application, component and solder joint size.

As the Weller heater design continuously maintains the same physical material characteristics during its lifecycle, no calibration is required. The High quality Platinum sensor and the control technology ensure temperature accuracy and stability according to IPC J-STD001 D. 

For advanced precision, surpassing IPC J-STD-001 D temperature accuracy requirements, all the professional digital units manufactured by the German company in the last 20 years have a built-in OFFSET function, which sets a value to correct any slight deviations (due to the specificity of the tip or to the state / wear or shape of it).

This new device has a double purpose as the temperature can be measured by the built-in thermo cross, or with a standard external type K sensor. Its main function uses the three filaments (one of which is mechanical only) that form the probe: the soldering tip has to touch at their intersection and the real temperature can be measured and shown in the middle of the screen of the WCU. The two contacts that carry out the reading are protected with heat-resistant and antistatic caps to avoid false readings caused by the proximity of the soldering iron's resistance to the probes. There is a metal plate under them to simplify cleaning, and the probes are easily replaceable (5 in the scope of supply and also available in packs of 10 pcs, T0058771712). As an alternative to the thermo cross, a type K thermocouple can be connected simultaneously to carry out temperature measurements of any type: from a solder bath or a process.

It can even verify “system accuracy” regardless of the specific tip used, but based on a sample tip, and this would use the 0.5 mm probe together with the appropriate Weller measurement tip (sold separately, T0053119099).

The temperate read by the external sensor is shown in the top left corner of the display.

Weller WCU can be connected to Weller units from the WX family but can also be used with older or other units, even with other brands, as well as used as an external temperature sensor (not necessarily for tips or nozzles). By connecting it to the Weller WX units (using a special cable sold separately, T0058764710), once the temperature verification process has been completed (about 10 "), any offset will be automatically set in the built-in memory of the WX connected tool.

The WCU is supplied with its calibration certificate and our service center is available for periodic certification.