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Introduction
1-4
MIE ADR-1500 Instruction Manual
The ADR-1500 accepts a universal A.C. power input (100-240 VAC,
50/60 Hz) or a 12-24 D.C. power input from an auxiliary power supply.
The A.C. power is diverted to an internal 24 VDC power supply and a
dedicated charger for the internal 12-Ah rechargeable lead acid battery.
This battery is mounted at the base of the instrument and the 24 VDC
power supply and battery charger are centrally mounted above the battery.
Should the instrument be powered from an external auxiliary 12-24 VDC
power source, a dedicated cable shall be used and it must be understood
that the internal battery can not be charged from this auxiliary power
supply.
The measured concentration of particulate matter is displayed in real time
on the ADR-1500 LCD readout, provided digitally via USB and analog
voltage and current signals updated every second. In addition, the user is
provided with an alarm switching output to drive external devices (e.g.,
siren, shut-off equipment, etc.). The measured data can be logged
internally in the ADR-1500 for subsequent downloading to a PC, modem,
etc. The external USB port also serves to link to a PC for programming
internal parameters of the ADR-1500 (e.g., logging period, measurement
averaging time, alarm level, calibration constant, etc.). However, it should
be noted that an additional RS-232 digital communications is reserved as
in internal connection for most after-market wireless connections that may
be made to the instrument.
The component elements of the ADR-1500 are designed to be CE
certified, and the instrument is designed for IP65.
The ADR-1500 borrows the highly sensitive nephelometric (i.e.,
photometric) monitor from the pDR-1500 whose legacy light scattering
sensing configuration has been optimized for the measurement of the
respirable fraction of airborne dust, smoke, fumes and mists in industrial
and other indoor and outdoor environments. The ADR-1500 incorporates
a temperature and relative humidity (RH) sensor to mitigate the positive
bias with elevated ambient RH. Additionally, the flow control is truly
volumetric and is maintained through digital feedback of the onboard
barometric pressure sensor, temperature sensor, and calibrated differential
pressure across a precision orifice.
Downstream of the internal vacuum pump is a HEPA filter which will
ensure a clean air source is delivered to the calibrated orifice and exhausted
from the instrument. Zeroing is accomplished by attaching a HEPA filter
to the inlet for a few minutes. By providing filtered air through the optical
bench, the optical background of the instrument is established throughout
the dynamic range of the instrument.
The ADR-1500 is a compact, rugged and totally self-contained instrument
designed for rapid deployment and unattended operation mounted on a
Thermo Fisher Scientific
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Troubleshooting
