General Operating Instructions; Resistance Measurements; Dc Voltage Measurements - Tektronix 7D12 Operator's Instruction Manual

Ml Operating Instructions-7D12 Operators
37. Set the MODE/RANGE control to DC VOL TS/2 V.
38. The readout display will read out a voltage
corresponding to 10 mV per each degree Celsius of the
temperature reading obtained in step 35 within 0.1%. For
example, if the reading obtained in step 35 was +25°C, the
reading obtained in this step should be 10 mV X +25 equals
250 mV or +.250 V.
39. Disconnect the test leads and the
voltageltemperature probe. This completes the Operating
Checkout Procedure.
GENERAL OPERATING INSTRUCTIONS
Resistance Measurements
Care should be exercised when measuring resistance
in circuitry containing low current-high frequency
solid state devices. Depending on the M1 resistance
range selected, currents of up to approximately
10 mA or voltages of up to approximately 6 volts
may appear at the resistance measurement terminals.
The M 1 measures resistance in six full-scale ranges as
follows: 00.00 to 200.00.Q; .0000 to 2.0000 k.Q; 0.000 to
20.000 k.Q; 00.00 to 200.00 k.Q; .0000 to 2.0000 M.Q;
0.000 to 20.000 M.Q. To operate the M 1 as an ohmmeter,
proceed as follows:
1. I nsert the M 1 Module into the 7D12 A/D Converter
and install in any ava.ilable plug-in compartment of a
7000-ser ies o sci Iloscope.
2. Turn the oscilloscope power on and allow twenty
minutes warmup.
3. Set the oscilloscope readout to obtain a usable
readout display (if necessary, refer to the oscilloscope
instruction manual).
4. Set the MODE/RANGE control to the desired
RESISTANCE range.
5. Connect the INPUT connectors to the resistance to be
measured using the supplied test lead set.
2-4
DC Voltage Measurements
The M 1 can measure DC voltages up to 1 kV in four
full-scale ranges as follows: ±.OOOO to ±2.0000 V; iO.OOO to
±20.000 V; iOO.OO to ±200.00 V; and ±.OOOO to
±1.0000 kV.
The voltage to be measured can be connected to the M 1
via the INPUT connectors or a compatible probe connected
to the PROBE connector. Observe the Maximum Safe Input
Voltage limits given in Table 2-1 in the M1 Specification
section for all measurements.
To measure DC voltages via the INPUT connectors, use
the following procedure:
1. Insert the M1 Module into the 7D12 A/D Converter
and install in any available plug-in compartment of a
7000-series oscilloscope.
2. Turn the oscilloscope power on and allow about
twenty minutes warmup.
3. Advance the oscilloscope Readout control to obtain a
usable readout display (if necessary, refer to the oscillo-
scope instruction manual).
4. Select the desired full-scale voltage range with the
MODE/RANGE switch. (The ranges to be used with
measurements made via the INPUT connectors are indi-
cated by the orange tint of the front panel.)
5. Connect the voltage to be measured to the INPUT
connectors. The readout will display a "+" preceding the
read ing if the HIGH input terminal is positive with respect
to the COM terminal, and "-" if the HIGH terminal is
negative with respect to the COM terminal.
To measure DC voltages with the probe, use the
following procedure:
(See M1 Options in Section 5)_
1. I nsert the M 1 Module into the 7D 12 A/D Converter
and install in any available plug-in compartment of a
7000-series oscilloscope.
2. Turn the oscilloscope power on and allow about
twenty minutes warmup.
3. Advance the oscilloscope Readout control to obtain a
usable readout display (refer to the oscilloscope instruction
manual if necessary).
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