ACOEM Met One Instruments GAS-1060, Руководство пользователя

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Introduction Page 21
Analog Input

Three analog voltage inputs (0-5 VDC) CAT I rated.
Digital Output

RS232 port #1: Normal digital communication.

RS232 port #2: Multidrop port used for multiple instrument connections on a single RS232.

USB port connection on rear panel.

TCP/IP port (optional)

USB memory stick (front panel) for data logging, event logging, parameter and configuration
storage.

25 pin connector with discrete status and user control.
o
Eight Digital Outputs, open collector max 400 mA each @ 12 VDC (max total output 2 A).
o
Eight Digital Inputs, 0-5 VDC, CAT I rated.
1.2.7 Physical Dimensions
Case Dimensions
Rack length (front to rear): 597 mm (23.5”)
Total length (with latch release): 638 mm (25.1”)
Chassis width: 418 mm (16.5”)
Front panel width: 429 mm (16.9”)
Chassis height: 163 mm/Uses 4RU (6.4”)
Front panel height: 175 mm (6.9”)
Weight: 19.4 kg
1.3 Nomenclature
NO
2
: Nitrogen dioxide.
Span: A gas sample of known composition and
concentration used to calibrate/check the response
of the instrument.
Zero: Zero calibration uses zero air (NO
2
scrubbed
ambient air) to calibrate/check the zero response of
the instrument.
Extinction: A measure of light scattering and absorption of NO
2
.
Background
: The value of the extinction measure without NO
2
present.
Multipoint Precision Check: A procedure to verify the linearity of the response
of the instrument.