ADG400 User Manual
Michell Instruments
3
INSTALLATION
2
INSTALLATION
2.1
Unpacking the Instrument
On delivery, please check that all the following standard components are in the packing box:
•
ADG400 Dew-Point Generator
•
IEC Power Cable
•
USB-B Cable
2.2
Power Supply
The ADG400 is fitted with a switch-mode power supply that can accept mains power
90...264 V AC, 47...63 Hz via the IEC power connection.
The ADG400 is fitted with a 10 A 20 x 5 mm (T) fuse located behind a fuse cover next
to the IEC power connection.
2.3
USB Connection
A USB type-B port is fitted to the back of the instrument to enable remote access to the
HMI from a PC or changing set-points via serial commands.
Refer to
Section 3.6.3, Remote Mode, and Section 3.6.4, Remote Access, for more
information.
2.4
Dry Gas Supply
The generator requires a supply of high-quality (oil free) dry gas with a moisture
content of <0.5 ppm
V
(<-80 °C atmospheric dew point) or compressed air to the same
specification as used during its setup/calibration. This enables the maximum range of
dew points to be generated.
A minimum flow of 7 Nl/min (14.8 scfh) is required, delivered at a pressure of 2.0 barg
(29.0 psig).
If replacing an existing dew-point generator connected to a PSD2, the internal pressure
regulator of the PSD2 MUST be adjusted to 2.0 barg (29.0 psig), otherwise the
ADG400 will not function. Refer to the latest PSD2 manual from the PST website (www.
processsensing.com) for instructions on how to perform this adjustment.
The generator was set up/calibrated using either a Michell PSD2 Pressure Swing Dryer
or a specific compressed air supply. A warning label, stipulating what the air inlet
specification needs to comply with, appears on the rear panel of the generator.
WARNING!
COMPLY WITH AIR INLET SPECIFICATION
TO ENSURE ACCURATE OPERATION
Air Inlet Specification:
Pressure = 2.00 BarG (29 PsiG)
Dew Point = -85 °C @ 1.013 BarA
