Posted in | Force Gauges

Weld Force Systems and Gages from HITEC Sensor Developments

The weld force systems and gages are considered to be perfect for field measurement and data logging of forces between the tips of resistance spot welders. The system is made up of a handheld sensor and portable readout/data logger (PMAC 2000). The sensor head, mounted on the end of the handle is located between the electrodes of a resistance type welder and is capable of sensing the force when the closing mechanism is triggered. This is followed by storing the peak reading on the handheld instrument (PMAC 2000), and it is possible to store up to 8000 readings in memory.

It is then possible to view these readings by scrolling through the menu, or the readings can be downloaded to a computer or printer through RS232 output. The instrument can also be used in a scope mode and a tracking mode. Data points in a force vs. time curve can be stored in the scope mode. The meter has the potential to sample at a rate of 10 kHz. These data points can then be downloaded to a plot program where the actual force vs. time can be displayed and then analyzed. It is suggested that the weld current be deactivated when the sensor is being used. However, no damage to the sensor will take place if accidently left on.

Specifications

Accuracy 0.05% of F.S.
Sampling rates  
Peak and track functions 5 kHz
Scope functions Selectable up to 10 kHz
Frequency response (-3dB) at 1000 Hz
Maximum input 4.5 mV/V
Polarity Bi-polar
Excitation 7 volts
Minimum bridge impedance 120 Ohms
Data output RS232, 9600 baud, 8-N-1
Analog output 0-1 V dc at 2 mV/V
Power Internal 9.6 V dc rechargeable (115 V ac charger included)
Peak and track functions 5 kHz
Capacities 300 – 10000 lbs.
Accuracy 0.5% of F.S.
Overload capacity 150% of F.S.
Handle assembly weight 2 lbs.
Handle dimensions 2” dia. x 8” long
Handle material Urethane

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