Ametek Land 4500 MKIII, User Manual

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D - 3
Model 4500 MkIII Opacity and Dust Monitor
User Guide
D2 Auxiliary Functions Unit & Auxiliary Power Supply (AFU & APS)
Data Communications
Data port: Modbus RS232 or RS485. Two or four-wire,
9600 or 19200 baud, Odd, Even or No parity.
Opacity, Optical Density, Dust Density, and Status
Information available. Remote control.
Control port: Modbus RS232 or RS485. Two or four-wire, 9600 or
19200 baud, Odd, Even or No parity. Remote control
and diagnostic information.
Inputs and Outputs
Analogue Outputs: Two isolated 4-20 mA current outputs, each
configurable for Opacity, Optical Density, or Dust
Density. Selectable for active or passive operation.
Relay Outputs: System OK, Maintenance (Data not Valid), Zero
Calibrating, Upscale Calibrating, Two Alarm Relays,
each configurable for Opacity, Optical Density, or
Dust Density. 48 V 1A maximum.
Blower Monitoring Four logic inputs for monitoring up to two purge air
blowers.
Failsafe Shutter Control Four logic inputs and two logic outputs for
monitoring and controlling up to two failsafe
shutters.
Remote Calibration Trigger Logic input for external volt-free contacts. Triggers a
Calibration Check Cycle.
Remote Fuel Selection Two logic inputs for external volt-free contacts.
Selects one of three sets of Dust Density Calibration
Constants corresponding to different fuels or
operating conditions.
Power Required
AC~ Voltage: 110 V ±10% or 220V ±10% or 230 V ±10%
depending on the blower connected to the blower
terminals*
CAUTION
Do not connect a voltage/frequency that
is unsuitable for the blower.
Frequency: 50 or 60 Hz ac depending on the blower connected
to the blower terminals*
Maximum Power: 5 kVA
* See Section A6.1
Mains Power Distribution Option
Blower power: Two 20A MCBs, with neutral and earth terminals