Features

• Sensor input fully isolated from power supply potential
• Different models support various sensor types
• 4-lead differential measurement
• Output range of 4 mA to 20 mA or 0 mA to 20 mA (0 V to 10 V)
• Available rack-mount case holds up to 12 units 

Model 231 Features

• Operates from 1.4 K to 500 K with appropriate diode

Model 231P Features

• Operates from 1.4 K to 800 K with appropriate NTC RTD

Model 234 Features

• Operates from 100 mK to 420 K with appropriate NTC RTD
• Includes serial interface

Model 234D Features

• Operates from 100 mK to 420 K with appropriate NTC RTD
• Includes serial interface
• 6-digit LED display