NOSHOK 2100 Series Field Upgradeable Dual Input Process Indicator - Manual (Page 8)

Sinking Logic
Terminal 9:
Terminal 10-11:
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In this logic, the user inputs of the meter
are internally pulled up to +5 V with 22
K resistance. The input is active when it
is pulled low (<0 .9 V).
3.3 USER INPUT WIRING
Before connecting the wires, the User Input Logic Jumper should be verified for proper position. If not using User
Inputs, then skip this section. Only the appropriate User Input terminal has to be wired.
Sourcing Logic
Terminal 9: -VDC thru external switching device
Terminal 10-11: + VDC thru external switching device
In this logic, the user inputs of the meter are internally
pulled down to 0 V with 22 K resistance. The input is
active when a voltage greater than 3.6 VDC is applied.
Connect external switching device between
appropriate User Input terminal and User Comm.
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3.2 INPUT SIGNAL WIRING
Current Signal
(self powered)
Terminal 4: -ADC
Terminal 5: +ADC
Voltage Signal
(self powered)
Terminal 4: -VDC
Terminal 5: +VDC
Current Signal (2 wire
requiring excitation)
Terminal 3: +ADC
Terminal 5: -ADC
INPUT A SIGNAL WIRING
Voltage/Current Signal (3 wire requiring excitation)
Terminal 3: +Volt supply
Terminal 4: -ADC (common)
Terminal 5: +ADC (signal)
CAUTION: Sensor Input B common is NOT isolated from user input common. In order to preserve the safety of the meter application, the sensor input
common must be suitably isolated from hazardous live earth referenced voltages; or input common must be at protective earth ground potential. If not,
hazardous live voltage may be present at the User Inputs and User Input Common terminals. Appropriate considerations must then be given to the
potential of the user input common with respect to earth common; and the common of the isolated plug-in cards with respect to input common.
Current Signal
(self powered)
Terminal 7: -ADC
Terminal 8: +ADC
Voltage Signal
(self powered)
Terminal 6: +VDC
Terminal 8: -VDC
Current Signal (2 wire
requiring excitation)
Terminal 6: +ADC
Terminal 8: -ADC
INPUT B SIGNAL WIRING
Voltage/Current Signal (3 wire requiring excitation)
Terminal 6: +Volt supply
Terminal 7: -ADC (common)
Terminal 8: +ADC (signal)
Before connecting signal wires, the Input Range Jumper must be verified for proper position.