Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual Signal Processing Sequence and Data Flow D-5
Math
Next in the signal processing sequence is a Math operation (mX+b, Percent, or Recipro-
cal). These math operations allow you to mathematically manipulate the reading (X) that
is applied to this block in the flowchart. With one of the Math functions enabled, the math
result is calculated as shown in
Figure D-2.
NOTE For details on Math operations, see “Math,” page 5-8.
Limits
The reading that is applied to the Limits block in the flow chart is not modified and is the
reading that is displayed on the Model 2700. With Limits enabled, the reading is tested
against two sets of high and low limits. Along with the displayed reading, annunciators
and messages are used to indicate the result of the limits testing.
NOTE For details on Limits testing, see “Limits,” page 9-2.
Buffer
With the buffer (data store) enabled, each displayed reading is stored and timestamped.
The buffer also provides statistics on the stored statistics. Buffer statistics include
minimum and maximum, peak-to-peak, average and standard deviation.
When buffer recall is enabled, stored readings and the buffer statistics are displayed on the
Model 2700.
NOTE For details on the Buffer, see Section 6.

Keithley 2700 Specifications

General

Type	Digital Multimeter
Measurement Functions	DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Temperature Range	-200°C to +1372°C
Display	Vacuum Fluorescent Display
Connectivity	IEEE-488, RS-232
Channels	10
Power Supply	100V to 240V AC, 45Hz to 66Hz
DC Current Range	10 µA to 3 A
AC Current Range	10 µA to 3 A
Temperature Measurement	Thermocouple, RTD