Extech TL620 User guide [ml]

User Manual

Oscilloscope Probe

MODEL TL620

1 Probe Rod
2 Probe Tip
3 Ground Lead
4 Tip Locating Sleeve
5 Adjustment Tool

Specifications

Attenuation X1, X10

Input Resistance X1: 1MΩ±2%, X10: 10MΩ±2%

Input Capacitance X1: 85pF to 115pF, X10: 18.5pF to 22.5pF
Compensation Range 15pF to 40pF
Bandwidth X1: DC to 6MHz, X10: DC to 60Mhz/100MHz/200Mhz
Maximum Input Voltage X1: <200VDC + Peak AC

X10: <600VDC + Peak AC
Cable Length 47” (120cm)
Weight 0.15lb (55g)
Operating Temperature 14F to 122°F (-10°C to 50°C)
Storage Temperature -4F to 167°F (-20°C to 75°C)
Humidity <85% RH

Low Frequency Probe Compensation

Before taking any measurements using the probe,firstcheckthecompensation and adjust it to match
the channel inputs. Most oscilloscopes have a square wave reference signal available at a terminal on
the front panel used to compensate the probe. Connect theprobetothesignalsource to display a
1kHz test signal on the oscilloscope.
Adjust the trimmer “L” until the signal displays a flat-top square wave.

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