12211 Simpson, 12211 Datasheet - Page 18

• Manufacturer Part Number: 12211
• Description: MULTIMETER, ANALOG, 7 FUNCTIONS
• Manufacturer: Simpson

Specifications of 12211

• Voltage Measuring Range Dc: 250mV To 1000V
• Voltage Measuring Range Ac: 2.5V To 1000V
• Current Measuring Range Dc: 50µA To 5A
• Current Measuring Range Ac: 250A
• Range Selection: Manual
• Accuracy: +/- 2 %
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

d.
e.
f.
g.
4.8
It is often neccessary to measure the AC component of a voltage consisting of a
mixture of AC and DC voltages, as in amplifier circuits. The 260’s have a 0.1 µf,
400V capacitor in series with the OUTPUT jack. The capacitor blocks the DC
component of the voltage in the test circuit, but passes the AC component. The
blocking capacitor alters the AC response of each Instrument at low frequencies.
(See Figure 4-1 for Frequency Response.)
When using the OUTPUT mode, do not connect the Instrument to a circuit whose
DC voltage component exceeds 350V.
a.
b.
c.
d.
e.
f.
Be sure the power is off in the circuit being measured and that all its capaci-
tors have been discharged. Connect the test leads to the circuit with the black
lead on the ground side.
Turn on the power in the circuit being measured.
Read the voltage on the red scale marked AC. Use the 0-10 figures and
multiply by 100.
Turn power off, disconnect the test leads and return the range switch to the
OFF/TRANSIT position.
Set the function switch to AC.
Plug the black test lead into the –COMMON jack and the red test lead into the
OUTPUT jack.
Set the range switch to one of the range positions marked 2.5V, 10V, 25V,
100V or 250V.
Be sure the power is off in the circuit being measured.
Connect the test leads across the circuit being measured with the black test
lead to the ground side.
Turn on the power in the test circuit. Read the output voltage on the appropri-
ate AC voltage scale. For the 0-2.5V range, read the value directly on the red
scale marked 2.5V. For the 10V, 25V, 100V or 250V ranges, use the red scale
marked AC and read the black figures immediately above the scale.
Output Voltage Measurements
Figure 4-2. Typical Frequency Response, Output Ranges
-10
10
+8
+6
+4
+2
-4
-6
-8
-2
0
10 HZ
100 VAC RANGE
250 VAC RANGE
2.5 VAC RANGE
25 VAC RANGE
10VAC RANGE
AC VOLTAGE RANGES
100 HZ
18
FREQUENCY
1000 HZ
10 KHZ
100 KHZ
1 MHZ