Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual Limits and Digital I/O 9-9
Figure 9-4
Controlling externally powered relays
4.75k
Pull Up Resistor
Pin 9 - Digital Ground
Digital Output
Pin 7 - Diode Clamp
Relay
Coil
Relay
Coil
+
+
-
-
External Power
(+5V to +33V)
External Power
(+5V to +33V)
Model 2700
Transistor Switch
Flyback
Diode
Equivalent Circuit
Digital Output #1
Flyback Diode
Control
Line
33V
+5V

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