Instruction Manual
NOTES, WARNINGS AND CAUTIONS 
Information that is especially important to note is identified by these labels: 
•  NOTE 
•  WARNING 
•  CAUTION 
•  IMPORTANT 
NOTE: provides you with information that is important to successfully set up and use the Programmable digital 
meter. 
CAUTION or WARNING: tells you about the risk of electric shock. 
CAUTION, WARNING or IMPORTANT: tells you of circumstances or practices that can affect the meter’s 
functionality and must refer to accompanying documents. 
1.0 INTRODUCTION 
1.1 Description 
The INFINITY series is a complete line of process indicators/controllers, offering exceptional performance. 
The DFI INFINITY strain gauge meter is front panel configurable to accept 0-20 and 4-20 mA dc current inputs, 
unipolar and bipolar DC voltage inputs and potentiometer inputs. The DFI INFINITY meter will accept inputs from 
most of the process sensors in use today such as transmitters, pressure transducers, and potentiometers. 
Configuring the INFS is accomplished through the 5 front panel buttons. If the optional RS-232 or RS-485 
communications are installed, the user may remotely set the display parameters. 
Options for the INFINITY include analog and BCD outputs, relay outputs, and RS-232 or RS-485 communications. 
1.2 Features 
The following is a list of features of the DFI INFINITY. 
•  6-digit LED display in red or green 
•  0.005% accuracy of reading 
•  12 DC input ranges: 0-100 mV, 0-1 V, 0-5 V, 1-5 V, 0-10 V, 0-100 V, ±50 mV, ±500 mV, ±5 V, ±50 V, 0-20 
mA, or 4-20 mA. 
•  1.5 to 11 or 24 V dc sensor excitation 
•  Peak & Valley detection and memory 
•  TARE 
•  Up to 13 readings per second 
•  4 isolated open collector outputs (standard) and optional isolated relay or isolated BCD and isolated analog 
outputs 
•  Optional isolated RS-232 or RS-485 communications 
•  NEMA 4 Front Panel/IP65 
•  Non-volatile memory without battery back-up 
•  115 Vac, 50/60 Hz, 230 Vac, 50/60 Hz power supply 
1.3 Available Models 
The following INFINITY options are available from Cooper Instruments & Systems. 
NOTE: The following options are available installed at the time of purchase or as separate items installed by the 
user after purchase: Analog Output Board, BCD Output Board, Relay Output Board, RS-232 Communications 
Board, and RS-485 Communications Board. 
CF 67  1  M1291/N/0403 11279ML-02 Rev. A 










