DELTAPOINT® RESISTANCE WELDING WATER SAVERS PROTECT CRITICAL WELDS

Description

Rocon LLC announces DeltaPoint® water savers and tip-loss monitors for protecting critical welds and helping assure quality in resistance welding robotic applications. DeltaPoint® monitors from Rocon LLC provide adequate water to weld tips, transformers and cables. The DeltaPoint® monitors sense tip loss in resistance welding cells by comparing total inflow and outflow of cooling water to the cell. DeviceNet interface is a standard feature of the DeltaPoint® units which monitor flow and temperature, provide flow comparisons and detect leaks in multiple weld devices. The DeltaPoint® monitors can provide sensitive tip-loss detection in welding guns, robotic work cells or non-robotic hard tooling. One DeltaPoint® unit can monitor up to 13 welding tips. DeltaPoint® tip-loss monitors are equipped with vortex shedding flowmeters that require minimal maintenance, are not affected by dirt in water, and have no moving parts to clog, wear or repair. The flowmeters are bench-calibrated to minimize possibility of nuisance tripping. Two flowmeters are used in the monitors to measure water flow in and out and compare flow rate and temperature. If a leak is detected, an alarm is sent to the robot to stop welding, and the water is shut off. The monitor will not allow the welder to operate without water flow, even in bypass mode. Rocon DeltaPoint® tip-loss monitors feature remote shutoff and restart and are programmable for leak rate alarm, time delay, restart delay, temperature fault level, flow okay and minimum flow indication. Models in the DeltaPoint® series accommodate cooling flows up to 12 gallons per minute (45.4 liters per minute) and water temperatures up to 230 degrees F (110 degrees C).

Specs

Pressure Drop: 2.1 PSIG (0.1Bar) @ 6 GPM (22 LPM) • Differential Pressure Limits: 5 – 80 PSID (0.3 – 5.5 Bar) • Maximum Operation Pressure 190 PSI (13 Bar) • Fluid Temperature Limits 35-210°F (2-99°C) • Ambient Temperature Limits: 32 – 122 F (0-50°C) • Weight: 13.5 Lb (6.1 kg) • Wetted Material: Brass • Electrical Enclosure: Aluminum Optional mounting bracket • Optional valves: standard, heavy duty and air operated • Porting: ¾ NPTF or BSPT Flow / Temperature Sensors • Accuracy ± 2% Full Scale Flow, ±1% Temperature • Repeatability ± .25% of actual fl ow • Response Time Flow: 1 second to 63% of fl ow change • Response Time Temperature: 1.8 seconds • Material: PVDF (Kynar) Solenoid Valve • Style: Diaphragm, 2–way pilot operated, NC • Cv: 8.4 • Mechanical Bypass Standard • Response Time: 1-1.5 seconds to shut off water. Length of hose run from unit to weld gun effects response time. • Material: Forged Brass • Seal: NBR (Buna N) Check Valve • Style: Piston, O ring seal • Material: Forged Brass • Seal: NBR (Buna N) Electrical Specifi cations • DeviceNet, DC or AC versions
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