Characteristics and Specifications 8
Digital Multimeter Specifications
U3606A User’s and Service Guide 247
Continuity
Measurement method 0.83 mA ± 0.2% constant current source
Open circuit voltage: < +5.0 V
dc
Audible tone: Continuous beep when reading is less than threshold resistance of
10 Ω at 1.0 kΩ range
Input protection: 1000 V
rms
on all ranges, < 0.3 A short circuit
Diode
Measurement method 0.83 mA ± 0.2% constant current source
Open circuit voltage: < +5.0 V
dc
Audible tone: • Continuous beep when level is below +50 mV DC
• Single tone for normal forward-biased diode or semiconductor
junction where 0.3 V ¤ reading ¤ 0.8 V
Input protection: 1000 V
rms
on all ranges, < 0.3 A short circuit
Capacitance
Measurement method Computed from constant current source charge time, typical 0.2 V to
1.4 V
ac
signal level
Maximum voltage at full
scale
• For 1 nF to 10 μF range: < 1.5 V
• For 100 μF to 10000 μF: 0.33 V
Input protection: 1000 V
rms
on all ranges, < 0.3 A short circuit
Response time: Approximately 1 s for 100 μF and ranges below 100 μF
Charge and discharge
voltage:
5 V
pp
(approximately from +3 V to –2 V)
Frequency
Measurement method: Reciprocal counting technique
Signal level: 0.2 V to 1.4 V
Input protection:
• Voltage path: 1000 V
rms
on all ranges, < 0.3 A short circuit
• Current path: Protected with a 3.15 A/500 V, FF fuse
Maximum display counts (excluding frequency)
5½ digit: 120,000
4½ digit: 12,000
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