Model 88 V
Users Manual
14
Making Measurements
The following sections describe how to take
measurements with the Meter.
Measuring AC and DC Voltage
The Meter's voltage ranges are 600.0 mV, 6.000 V,
60.00 V, 600.0 V, and 1000 V. To select the 600.0 mV dc
range, turn the rotary switch to mV. To measure ac or dc
voltage, refer to Figure 2.
When measuring voltage, the Meter acts approximately
like a 10 M
Ω
(10,000,000
Ω
) impedance in parallel with the
circuit. This loading effect can cause measurement errors
in high-impedance circuits. In most cases, the error is
negligible (0.1% or less) if the circuit impedance is 10 k
Ω
(10,000
Ω
) or less.
For better accuracy when measuring the dc offset of an ac
voltage, measure the ac voltage first. Note the ac voltage
range, then manually select a dc voltage range equal to or
higher than the ac range. This procedure improves the
accuracy of the dc measurement by ensuring that the input
protection circuits are not activated.
+
MIN MAX
RANGE
REL
Hz %
AutoHOLD
A
mA
COM
400mA
FUSED
10A MAX
FUSED
A
88
MIN MAX
RANGE
REL
Hz %
AutoHOLD
A
mA
COM
400mA
FUSED
10A MAX
FUSED
A
88
Switch Box
V
AC Voltage
DC Voltage
V
mV
aug01f.eps
Figure 2. Measuring AC and DC Voltage
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
