2.1.3.6 Analog Voltage Output
Connections from the Analog Voltage output to the user’s auxiliary equipment are made at terminal
block TB3 on the rear of the analyzer chassis. Be certain to match the terminal pins against the
terminal ID label on the top of the analyzer chassis.
Use 20-AWG, 2-conductor, stranded-wire, twisted pairs for the connections. It is not necessary to
use shielded cable for the Analog voltage output, with or without electrical barriers. If shielded
cable is used, it should be drained to dc ground at the auxiliary equipment.
2.1.3.7 Analog Current Output
Connections from the Analog Current output to the user’s auxiliary equipment are made at terminal
block TB3 on the rear of the analyzer chassis. The Analog current output is a negative ground,
non-isolated 0-20mA, or 4-20 mA current loop. 12 VDC Power is supplied by the model 1100
analyzer. Maximum electrical loading is 250 Ohms. Be certain to match the terminal pins against
the terminal ID label on the top of the analyzer chassis.
Use 20-AWG, 2-conductor, stranded-wire, twisted pairs for the connections. It is not necessary to
use shielded cable for the Analog current output, with or without electrical barriers. If shielded
cable is used, it should be drained to dc ground at the auxiliary equipment.
2.1.3.8 Battery Backup
12-volt DC Battery Backup terminals are provided at terminal block TB3 on the rear of the analyzer
chassis. These terminals may be connected to a fixed 12 VDC power source to act as a back up
in case mains power has been lost. The circuit will detect loss of the mains power and the VDC
battery backup will maintain power to the system.
Connection to the battery backup is not required for normal operation of the analyzer. Be certain
to match the terminal pins against the terminal ID label on the top of the analyzer chassis.
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