Duty Cycle - TESTBOY TB 4000 Bedienungsanleitung

Temperature
Set the selector switch to "°C". Connect a type-K temperature sensor (nickel-chrome/nickel) to the
"V/Ω" and "COM" jacks. Read off measurement result from the display.
Measurement range
-20 to 0 °C
0 to 400 °C
400 to 1000 °C
-4 to 32 °F
32 to 752 °F
752 to 1832 °F
Frequency
Set the selector switch to "Hz". Connect the black test lead with the "COM" jack and the red
test lead with the "V/Ω" jack. Connect the test leads with the test object and read off the meas-
urement result from the display.
Measurement
range
10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
10 MHz
Overvoltage protection: 250 V RMS

Duty cycle

Set the selector switch to "%/Hz". Press the "Hz/%" button. Connect the black test lead with the
"COM" jack and the red test lead with the "V/Ω" jack. Connect the test leads with the test ob-
ject and read off the measurement result from the display.
Measurement
range
0 – 99 %
Overvoltage protection: 250 V RMS
®
Testboy TB 4000
Resolution
1 °C
1 °F
Resolution
0.001 Hz
0.01 kHz
0.1 Hz
1 Hz
10 Hz
100 Hz
1 kHz
Resolution
0.1 %
Operation
Accuracy
±2 % + 3 digit
±1 % + 2 digit
±2 % + 2 digit
±2 % + 6 digit
±1 % + 4 digit
±2 % + 4 digit
Accuracy
±1 % + 5 digit
Accuracy
±3 % + 2 digit
23