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Optional Hardware and Software M400E Ozone Analyzer Operator’s Manual
5.5. SPARE PARTS KITS
5.5.1. M400E EXPENDABLES KIT (OPT 42A)
This kit includes a recommended set of expendables and spare parts for one year of operation of the M400E.
See Appendix B for a detailed listing of the contents.
5.5.2. M400E SPARE PARTS KIT FOR THE IZS OPTION (OPT 43)
This kit includes a recommended set of spare parts for one year of operation of M400E’s that have the optional
O
3
generator and photometers installed. See Appendix B for a detailed listing of the contents.
5.6. CALIBRATION VALVE OPTIONS
5.6.1. ZERO/SPAN VALVES (OPT 50A)
The Model 400E photometric ozone analyzer can be equipped with a zero/span valve option for controlling the
flow of calibration gases generated from sources external to the instrument. This option consists of a set of two
solenoid valves located inside the analyzer that allow the user to switch the active source of gas flowing into the
instrument’s optical bench between the sample inlet, the span gas inlet and the zero air inlet.
The user can control these valves from the front panel keyboard either manually or by activating the instruments
AUTOCAL feature (See Section 9.4).
The valves m
ay also be opened and closed remotely via the RS-232/485 Serial I/O ports (see Section 8.1.7) or
External Digit
al I/O Control Inputs (See Section 9.3.2.3)
ABSORPTION TUBE
Figure 5-3: M400E Pneumatic Diagram with Zero/Span Valve Option (OPT-50A)
48 04315 Rev. C1