Environnement MIR 9000 - LCD, Technical Manual

Page: 21 / 154

Duplication prohibited MIR 9000
1–13
February 2000
1.1.2.3.b) NH
3
/H
2
O version (Figure 1.7)
•
Pressure sensor (1)
•
IR detector and optical filters wheel (2)
•
Chopper unit, IR source and gaseous correlation wheel (3)
•
Optical bench (4).
•
Optical bench enclosure (5)
•
Motherboard (6)
•
Automaton microprocessor board (7)
•
Optional DAC8 board (8)
•
DAC8 board (9)
•
Display interface board (10)
•
Display microprocessor board (11)
•
Mains power supply block (12)
•
Stepping motors piloting boards (13)
•
RS3i board (14)
•
Ejector on the optical bench
•
Flowmeter under the optical bench
1.1.3 VARIOUS OPERATION MODES
1.1.3.1 Standard
–
Expression of measurement values in ppm, mg/m
3
or as %.
–
Reference zero, zero and automatic calibration sequence are programmable.
–
Integration time is automatic or programmable.
–
Automatic checking of multiplexed parameters and correct operation tests.
–
Analog output of measured concentrations.
–
Remote signalling of "zero", "calibration" and "alarm" functions.
1.1.3.2 Optional
The analyzer can be equipped with:
–
an oxygen measurement cell fitted with an active carbon filter.
–
a RS232 / 422 serial interface board of the RS3i type for exchanges with a microcomputer,
directly or by means of a SAM32E.