08354B DCN7877
Teledyne API T640 PM Mass Monitor
58
MODBUS
REGISTER ADDRESS
(DECIMAL, 0-BASED)
DESCRIPTION
10
Real-time PM10-2.5 concentration derived by subtracting the PM2.5
value from PM10
12
Real-time PM10 standardized concentration value
14
PM10 1Hr rolling concentration average
16
PM2.5 1Hr rolling concentration average
18
PM10-2.5 1Hr rolling concentration average
20
PM10 12Hr rolling concentration average
22
PM2.5 12Hr rolling concentration average
24
PM10-2.5 12Hr rolling concentration average
26
PM10 24Hr rolling concentration average
28
PM2.5 24Hr rolling concentration average
30
PM10-2.5 24Hr rolling concentration average
32
LED Temperature
34
Ambient Pressure
36
Humidity Sensor Reading
38
Box Temperature
40
Ambient Temperature Probe Reading
42
Temperature in the ASC Tube Jacket
44
Sample Stream Temperature at RH Sensor
46
Sample Flow5
48
640x Option Bypass Flow 11.67LPM
50
Sample Flow + Bypass Flow
52
Signal Length Max Value
54
P3 Value for Signal Length Histogram
56
Pump Duty Cycle / Pump PWM Status - Flag at 80%
58
Proportional Valve Duty Cycle / Valve PWM Status - Flag at 85%
60
ASC Heater Duty Cycle
HOLDING REGISTERS (READ/WRITE)
(32-bit Integer)
0
PMT voltage setting - DAC counts
2
Value returned by the send Offset Adjust function
4
PMT HVPS setting determined during cal dust calibration
(32-bit IEEE 754 format; read/write in high-word, low-word order)
6
5-LPM Flowmeter Calibration Slope
8
640x Bypass Flowmeter Calibration Slope
10
Pressure Sensor Calibration Slope
12
Setpoint for the sample RH
14
Flow Setpoint for the optical sensor
16
Setpoint for the 640x Option bypass flow
18
RH sensor slope