Techna-Check - Model PWM3110T - Load Transducer for 1- or 3-phase AC Loads

• PWM3110T measures true motor power [kW].
• TTBus Output : Proprietary RS485 type Sensor Bus
• 13 Programmable Measurement Ranges :  0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10, 25, 50 or 100%
• Hall Sensors : 200 Amp, 500 Amp. or 1000 Amp available

Mechanical

• Housing:   Polycarbonate.
• Mounting:   35 mm DIN-rail.
• Protection Class: IP40.
• Temp. Range:   -15 to + 50 C.
• Weight:   App. 200g.
• Dimensions:   120 x 23, 5 x 113 mm.

Electrical

• Voltage Input:   3 x 0-500 VAC/VDC max.
• Current Input:   3 x 200/500/1000 A, 0 Hz - 60 kHz
• Power Range:   160, 398 or 797 kW at 460 VAC.
• Supply:   18-36 V DC max. 4.0 Watt.
• TTbus output:   RS485 - proprietary protocol.

• The PWM3110T is designed primarily for measuring AC power delivered to motors driven by Variable Frequency Inverters.
• AC power is measured from the formula:
• Where: T = period, V (t) = voltage and I(t) = current.
• The PWM3110T Power or Current Transducer is specifically developed to function as a load transducer for the TECHNA-CHECK® Range of Machine Tool Monitors.
• A Power Transducer for Tool-Monitoring must be fast and accurate. Sometime the measurement speed is as high as one half period, unlike commercial power-meters, which measure power averaged over several seconds.
• Please note that most commercial Power Meters will not even be able to measure Power correctly after a Variable Frequency Inverter. The transducer interfaces to Tool Monitor Applications via the proprietary TTBus interface.
• The three motor wires must pass through the external hall sensors in the same direction to the motor either from Top- Bottom or from Bottom-Up.