
Operation Manual HORIBA APDA-371
Particulate Monitor
Date:
April, 2010
______________________________________________________________________________________________________________________
______________________________________________________________________________________________________________________
HORIBA Europe GmbH, Julius-Kronenberg-Str. 9, D-42799 Leichlingen,
: +49(0)2175-8978-0,
: +49(0)2175-8978-50
Page 42
HORIBA 500 series meteorological sensors have an Auto ID feature which allows the APDA to automatically recognize
the sensor and enter all of the setup parameters for any channel the sensor is attached to. Each channel can also be
manually configured by the user for other sensors.
SETUP CHAN PARAMS
CH TYPE UNITS PREC MULT OFFSET
06 AT C 1 0100.0 -050.0
SENSOR FS VOLT: 1.000
INV SLOPE:N VECT/SCALAR:S MODE:AUTO ID
SAVE ID MODE EXIT
The SENSOR Menu
CH:
This field selects the channel to be viewed or edited. Use the up/down arrow keys to select the
desired channel.
TYPE:
This is the channel name. You can enter any desired name here by using the arrow keys to scroll
through the alphabet and other characters.
UNITS:
This is the measurement units label for the channel. You can enter a value here by using the arrow
keys to scroll through the alphabet and other characters.
PREC:
This is the precision field, which sets the number of available decimal places for the Multiplier and
Offset parameters.
MULT:
This is the slope multiplier. Any input on the channel is multiplied by this amount. The M factor in
Y=MX+B.
OFFSET:
This is the slope offset value. Any input on the channel has this amount added to or subtracted from it,
after the multiplier is applied. The B factor in Y=MX+B.
FS VOLT:
This is the full-scale voltage output of the sensor. The maximum voltage range that can be supplied by
the sensor. This value is usually going to be either 1.000 or 2.500 volts. 2.500 is the maximum setting
for this field.
INV SLOPE:
This setting allows the channel to recognize a sensor with an inverse slope. This is always set to N
(no) except for use with thermistor temperature sensors with resistance-only outputs.
VECT/SCALAR: This value sets the averaging method. S (scalar) is used for all measurements except wind direction,
which uses V (vector).
MODE:
This field is toggled by pressing the ID MODE soft-key. The value can be set to either MANUAL or
AUTO ID. In MANUAL mode, the user can enter their own setup parameters for the channel. AUTO ID
mode is used with 500 series sensors, and must be selected in order for the unit to recognize the
sensor automatically. NOTE: Any manually set parameters for that channel will be lost when changing
to AUTO ID mode. Channel 6 must be set to AUTO ID for PM
2.5
monitoring with the ambient
temperature sensor BX-596.
6.9
HEATER Screen
The SETUP > HEATER screen is only visible if the HEATER CONTROL value in the SETUP > CALIBRATE menu is
set to AUTO. This menu is used to configure the settings used by the APDA-371 to control the Smart Inlet Heater. The
APDA uses an RH and temperature sensor located below the filter tape in the sample air stream to monitor the
conditions of the air as it is being sampled. Tests have shown that as the relative humidity of the ambient air exceeds
about 50%, the particulate on the filter tape can begin to absorb moisture and the measured mass will increase. The