12211 Simpson, 12211 Datasheet - Page 13

• 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

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This section of the manual contains information required to use and operate the
260 in a safe and proper manner.
Before proceeding with the operation of the 260, review the SHOCK HAZARD
definition printed in the front of the manual. Do not use the Instrument and its
accessories on induction heating, x-ray machines, or power substations where
high voltage and low impedance equipment is used.
Range Switch:
Function Switch: The function switch has three positions: -DC, +DC and AC.
Ohms Adjust:
Circuit Jacks:
OPERATION
Table 3-1. Controls and Connectors
The range switch has 18 positions. It may be turned to any
position from either direction. There are seven voltage po-
sitions, four direct current, six resistance and an OFF/TRAN-
SIT position. Two of the resistance positions are for Low
Power Ohms.
To measure DC current or DC voltage, set the function
switch at -DC or +DC, depending on the polarity of the
signal applied across the test leads. For resistance mea-
surements, the switch may be in either the +DC or -DC
position. The function switch can reverse the test leads
without need for removing the test leads from the circuit
under test. To measure AC voltage, set the function switch
into its AC position.
The ohms adjust control is a variable resistor in the ohm-
meter circuit, which permits adjustment at infinity (") and
at 0 for the low power and conventional ohms ranges, re-
spectively.
There are seven jacks on the front panel marked with the
functions they represent. These are the connections for
the test leads. The elbow prods of the test leads are plugged
into the proper jacks for the circuit and range desired for
each application. At the lower left are - COMMON and +
jacks. The black test lead is connected to - COMMON for
all circuits and ranges except the 5 A, DC range. The red
test lead is used in the + jack for all functions and ranges,
except those designated by the other jacks. Across the top
of the panel are three jacks individually marked -5A, dual
marking of +50 µA/250 mV at a single jack, and +5A.
For the 50 µA or 250 mV DC range, the red test lead is
connected to this dual-marked jack. For the 5A DC range,
the black test lead and the red test lead are connected to
the -5A and +5A jacks, respectively. At the lower right are
the OUTPUT and 1000V jacks. For all OUTPUT ranges
and for 1000V AC or DC, the red test lead is connected to
the appropriate jack with black lead in the left of the –COM-
MON jack.
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