Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual FORMat and Misc SYSTem Commands 14-3
ASCII data format
The ASCII data format is in a direct readable form for the operator. Most programming
languages easily convert ASCII mantissa and exponent to other formats. However, some
speed is compromised to accommodate the conversion.
Figure 14-1 shows an example
ASCII string that includes all the data elements. See “FORMat:ELEMents <item list>,”
page 14-6, for information on the data elements.
Figure 14-1 also shows the byte order of the data string. Data elements not specified by the
:ELEMents command are simply not included in the string.
Figure 14-1
ASCII data format
+1.23456789E-03VDC, +11.664SECS, +236RDNG, 000, 0000LIMITS
Reading* Timestamp
Units
Channel
Number
Limits
Code
Reading
Number
Units:
VDC = DC Volts
VAC = AC Volts
ADC = DC Current
AAC = AC Current
OHM = 2-Wire Resistance or Continuity
OHM4W = 4-Wire Resistance
*An overflow reading is displayed as +9.9E37 with no limits.
Units:
HZ = Frequency
SECS = Period
C = Temperature in C
F = Temperature in F
K = Temperature in K

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