User's Manual

123
Service Manual
2-12
2.8 EMC Immunity
The Fluke 123, including standard accessories, conforms with the EEC directive 89/336
for EMC immunity, as defined by IEC1000-4-3, with the addition of tables 2-1 to 2-3.
Trace Disturbance with STL120 See Table 2-1 and Table 2-2.
Table 2-1. No Visible Trace Disturbance
No visible disturbance E= 3 V/m E= 10 V/m
Frequency range 10 kHz to 27 MHz
Frequency range 27 MHz to 1 GHz
50 mV/div to 500 V/div
50 mV/div to 500 V/div
500 mV/div to 500 V/div
50 mV/div to 500 V/div
Table 2-2. Trace Disturbance < 10%
Disturbance less than 10% of full scale E= 3 V/m E= 10 V/m
Frequency range 10 kHz to 27 MHz
Frequency range 2 MHz to 1 GHz
10 mV/div to 20 mV/div
5 mV/div to 20 mV/div
50 mV/div to 200 mV/div
-
(-): no visible disturbance
Test tool ranges not specified in Table 2-1 and Table 2-2 may have a disturbance of more than 10% of full
scale.
Multimeter disturbance See Table 2-3.
• VDC, VAC, and VAC+DC with STL 120 and short ground lead
• OHM, CONT, DIODE, and CAP with STL120 and black test lead to COM
Table 2-3. Multimeter Disturbance < 1%
Disturbance less than 1% of full scale E= 3 V/m E= 10 V/m
Frequency range 10 kHz to 27 MHz
VDC, VAC, VAC+DC
OHM, CONT, DIODE
CAP
500 mV to 1250V
500Ω to 30 MΩ
50 nF to 500 µF
500 mV to 1250V
500Ω to 30 MΩ
50 nF to 500 µF
Frequency range 27 MHz to 1 GHz
VDC, VAC, VAC+DC
OHM, CONT, DIODE
CAP
500 mV to 1250V
500Ω to 30 MΩ
50 nF to 500 µF
500 mV to 1250V
500Ω to 30 MΩ
50 nF to 500 µF
Test tool ranges not specified in Table 2-3 may have a disturbance of more than 10% of full scale.