Honeywell SPM, Техническое руководство

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SPM Single Point Monitor
SPM Technical Handbook 5-9
Gas families such as Hydrides, Mineral Acids,
Diisocyanates, and Hydrazines use one type of
Chemcassette
® per family. However, for target gases
within these families, you must use a ChemKey specific
to the target gas.
5.4.6 Sample Lines
Different target gases may have different limitations on
length of sample line and use of particulate filters. See
Sections 4.10
and
4.11
for more information.
Warning
When converting the SPM using the ChemKey
option, make sure sample line limitations for the
new target gas are followed.
5.4.7 ChemKey Operation
With the proper ChemKey and Chemcassette ® in place,
start monitoring by turning on the ChemKey one-quarter
turn and by turning on the main power switch (8). At
start-up, the SPM display will show the name of the
gas, programmed alarm levels, and the appropriate
Chemcassette
® to use. Observe this display information
as a check on the correct match with the ChemKey and
Chemcassette
®
. Following this start-up display, the SPM
monitors as normal.
5.4.8 Changing Gases
To change from one ChemKey gas to another:
1. Switch off main power control (8).
2. Turn ChemKey counterclockwise and remove.
3. Remove old Chemcassette
®
.
4. Clean all tape transport surfaces with methanol
using a small rag or cotton swab.
5. Install new Chemcassette
®
.
6. Check new target gas against information in
Section 4.10
– Sample Line Limitations and
Section 4.11
– Particulate Filter.
7. Insert new ChemKey, turn clockwise, switch main
power switch on (8) and observe digital display
(19) for gas information.
5.4.9 ChemKey Faults
In the case of an operating failure or fault with the
ChemKey, the display (19) reads (FAULT 11). This fault
is specific to the ChemKey system, and could indicate
one of several possible conditions:
• The ChemKey may not be turned on (i.e., still
vertical instead of horizontal).
• The key might be missing or not fully inserted.
• The ChemKey memory may be defective.
If after checking the ChemKey position and determining
that it is properly inserted, turned on, and labeled SPM,
either the key is defective or there are internal circuit
problems. Contact Honeywell Analytics Service for
assistance.
5.5 RS-422 Option
The RS-422 option includes an internal clock and
calendar. See
Section 5.5.4 for instructions on setting
date and time.
5.5.1 Z-Purge SPM Connection