Badger Meter Impeller Data Industrial 3100 Series, Руководство пользователя, Страница: 9 / 28

Analog Input
As an alternative to the pulse inputs the Badger Meter Series 3100 can accept up to two analog inputs . The input is
non-isolated, but can accept 0…1V DC; 0…5V DC; 0…10V DC; 0…20 mA; and 4…20 mA with both factory defined, and
custom units of measure . Low impedance 100 ohm input for current inputs optimizes performance and flexibility for loop
power supplies . Both the low and high end scaling are independent and field configured by the installer .
Figure 7: Current and voltage sourcing inputs
Output Wiring
The Series 3100 has four mechanical form “C” relays, one solid state, normally open (N .O .) switch closure, two analog outputs,
RS-485 for Modbus and BACnet communications and a USB connector for configuration and other purposes .
See
"Specifications" on page 27 for maximum voltage and current ratings for each type output .
Mechanical Form “C” Relay (COM, N.O. and N.C.)
The four form “C” mechanical relays are labeled “NO” (normally open), “NC” (normally closed) and COM (common) .
When a relay is de-energized, the corresponding LED is unlit, and continuity exists between N .C . and COM; and, N .O . to COM
is open .
When a relay is energized the corresponding LED lights yellow and there is continuity between N .O . and COM and N .C . to
COM is open .
Installation
Page 9 August 2014 CTL-UM-001026-EN-04