Ametek Land 4500 MKIII, User Manual

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Opacity and Dust Monitor
User Guide
Model 4500 MkIII
B - 14
Read-Only Registers
Modbus
Register
Data Value Description Range Scaling
127 Opacity Calculated opacity -25% - 100% x100
128 Optical density Calculated optical density -1 - 3 x1000
129 Dust density Calculated dust density 0 - 9999 x1
130 Dust density
fractional
Fractional part of the dust density
(Reg 503)
0 - 99 x100
131 Average optical
density
Average optical density during
gravimetric test
-1 - 3 x1000
132 Stored Average
Optical Density
Stored average optical density -1 - 3 x1000
133 Held opacity Calculated opacity not updated during a
cal audit or a cal check
-25% - 100% x100
134 Held optical
density
Calculated optical density not updated
during a cal audit or a cal check
-1 - 3 x1000
135 Held dust density Calculated dust density not updated
during a cal audit or a cal check
0 - 9999 x1
136 Held dust density
fractional
Fractional part of the held dust density
(Reg 506)
0 - 99 x100
73 Alarm status Transceiver alarm 0 = Inactive
1 = Active
NA
51 Number of faults Indicates the number of faults currently
present (regardless of mask states)
0 - 32 NA
52 Error Flags Error flags Bit 0 = Zero motor jammed
Bit 1 = Upscale motor
jammed
Bit 2 = Source LED fail
Bit 3 = Flood Led fail
Bit 4 = ADC over-range
Bit 5 = ADC fault
Bit 6 = Tx shutter fault
Bit 7 = Retro shutter fault
Bit 8 = Tx blower fault
Bit 9 = Retro blower fault
Bit 10 = AFU fault
Bit 12 = Negative opacity
Bit 13 = Checksum error
Bit 14 = Lens contamination
limit
Bit 15 = Failure during
calibration
NA