international electro-magnetics

ST33
Surge Tester

40 MHz sampling rate detects micro-discharge corona.
9-bit resolution provides high accuracy.
Internal switching provides for test polarity inversion.
Electrically isolated RS-232/ RS 485/Fiber optic Opt.
6 channel multiplexing allows multiple channel measurements.

The ST33 is a PC based system that will test electrical windings of motors, actuators and other electro-magnetic devices. It generates a high voltage, low current energy pulse across coil winding leads and samples the resulting waveform. Inter-turn short circuits or insulation losses can be readily identified by the waveform analysis.

Test parameters are easily set through menu based software. Voltage amplitude can be adjusted from 500 to 5,000 volts in 50 volt increments. Sample time is adjustable from 25 nanoseconds to 800 milliseconds. Waveform analysis functions include: inductance, waveform amplitude, zero-crossing time, integral value and differential, spikes magnification (for micro-corona detection).

Setup and use of the ST33 is straightforward. First article testing is easily done through a self-learning function. Waveform information and test parameters for up to 16 tests are stored in computer memory; additional test data can be downloaded to the 3.5" floppy drive. The signal energy is limited to prevent damage to the coil insulation, but higher energy versions are available. The ST33 offers advanced testing features in an easy to use configuration.

Specifications
Display:
10 ½" LCD Active Matrix TFT Color

Computer:
486 SX 50 MHz, Industrial Grade

Surge Test Voltage:
500 to 5,000 in 50V steps

Surge Energy:
125 mJ @5000 Volts (High energy versions available)

Waveform Sampling:
40 MHz, 8-bit resolution with 512 sample buffer

Warm-up pulses:
selectable from 0 to 10.

Test Pulses:
selectable from 1 to 10 with averaging on waveforms

Test Speed:
800 milliseconds minimum

Power Supply:
120 V, 60 Hz/ 240 V, 50 Hz

Cabinet:
19 x 19 x

Weight:
22 Lbs./ 10 Kg. Approx.

Options:
/RK - Rack Mount

/HE - High Energy

/85 - RS485 instead of RS 232

/MM - Modem and Remote Service software