Acuity AccuRange AR1000, Руководство пользователя

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AR1000 User’s Manual
Rev 1.7 1/10
13
Figure 8 Wiring Diagram for Analog output
The best conversion to voltage is obtained by connecting a 500-ohm load resistor (1/4 Watt
minimum) between the red and blue wires at the measurement point. This gives a 2 volt to 10
volt output range. See Analog Output Operation (section 6) for mode selection and scaling
options.
The sensor may be connected directly to a meter or a filter may be inserted to reduce noise.
Figure 9 Wiring Diagram for filtering the Analog output
4.1.5.
Alarm Output (White)
The White wire is the Alarm Output.
See Alarm Output Operation (section 7) for operation options and details.
The Alarm Output is an open collector PNP transistor switch to the positive power supply.
When the Alarm Output is not active, its output will be high impedance and no current will
flow through it. When the Alarm Output is active (On) it can source up to 500mA of current.
The load for the output should be connected to ground (Blue wire). The voltage on the Alarm
wire must not exceed the limits of the Power Supply connection voltages (orange and blue
wires), or excessive current may flow into the sensor and cause damage.