Witschi Proofmaster PRO Pressure and Vacuum Tester - HW420C

The NEW generation ProofMaster – more compact, faster, more accurate The latest technology and smart algorithms are part of its DNA. Based on many years of experience, a device has been designed that is characterised by the easiest possible operation and parameterisation. It impresses with rapid and reliable tightness testing, small space requirements, optimal protection of watches against scratching and its ergonomic design. The new ProofMaster is adaptable With modular option packages and accessories, the individual requirements of watchmakers, service centres, production facilities and laboratories are covered perfectly. WiCoTRACE software The ProofMaster can be used as a stand-alone device or in conjunction with the PC software WiCoTRACE 3. This provides additional possibilities for the measurement analysis and the professional administration of parameters and results, either locally or centrally.

ProofMaster • Testing can be carried out with up to three test pressures ranging from –0.8 to 10 bar • Intuitive operation via the 5 inch touchscreen • Considerable productivity increase thanks to the new, fast evaluation algorithm • ScratchProtect – lowerable watch support offers efficient protection against unwanted scratches • Improved measurement accuracy due to increased resolution and stability of deformation measurement • Fully automatic sensor actuation, as well as closure and locking of the test chamber • LeakFinder – new function for reliable and fast location of leaks • Improved protection against mechanical faults with shock and vibration detection • Results of last 100 measurements saved (ring memory) • Program memory for 50 measurement programs Measuring principle Analysis of watch case deformation under vacuum and/or pressure and with consideration of the deformation behaviour. Deformation measurement Measuring range: –500 to +1’200 μm, Resolution: 0.01 μm Test pressures Testing with up to 3 test pressures Vacuum –0.1 to –0.8 bar in steps of 0.1 bar Pressure 0.1 to 10 bar in steps of 0.1 bar Programs Quick selection, favourites list, 5 fixed and 50 parametrisable programs, LeakFinder program, program for device check (reference leak) Parameter inputs Up to 3 different test pressures, input of the watch case diameter to specify the volume or the known internal volume of the watch, measurement time 20 to 600 s or automatic, limit values per test pressure for the leakage rate, min./max. deformation limits for additional test safety, leakage rate units μg/min, μl/ min and mm3/min Display/input 5 inch colour screen with a resolution of 800 x 480 pixels, capacitive touch function, user interface languages: E/F/D/I/SP Display of results No leak/leaking, numerical values for max. deformation, leakage rate and result per test pressure, measurement times and overall result Results memory Ring memory for 100 measurement results.

Interfaces 2x USB Type A ports, 1x USB Type B port, 1x RJ45 Ethernet, Bluetooth (with optional dongle) Print-out using tape printer Print-out of test parameters and results, input for customerspecific logo and text Max. dimensions of watches (test samples) Diameter: 65mm, height: 30mm Width across watch strap: 85 mm Device specifications Dimensions: 149 x 243 x 305 mm (L x H x D) Weight: 5.8 kg Software Software package ProofMaster PRO.

Requires a compressor capable of minimum 11 Bar output pressure (Our Ref. HW441).