Loading The Chemcassette Detection Tape; Monitoring; Simulating Gas Conditions; Alarm Relays - Honeywell SPM Technical Handbook

1.5 Loading the Chemcassette
Detection Tape
Load a fresh Chemcassette
1. Open the tape load lever (18).
• The green system status LED (9) will flash
slowly.
• AC Line (1) instruments will display (AC LINE)
on the digital display (19). Battery powered
instruments will display current battery
condition.
2. Remove the center retaining screw securing the
Chemcassette
®
Chemcassette
®
3. Install the fresh Chemcassette
lettering facing up. Pull 30 cm (12 inches) of tape
(7) out of the fresh Chemcassette
end of the tape in the slot on the Chemcassette
take-up reel cover (27).
4. Thread the Chemcassette
detector head (17), capstan assembly (25), and
over the guide posts (5 and 26).
Note:
The EP (30 Day) or XPS (Extended Play)
Chemcassette will lock in position when tape outlet
®
is at approximately the one o'clock position. The SP
(Standard Play) Chemcassette
as shown in the Master SPM Illustration.
5. Install the take-up reel cover (27).
6. Rotate the assembled take-up reel (27) clockwise
to take up any slack.
7. Install the Chemcassette
screw.
8. Close the tape load lever (18). The SPM will
automatically begin monitoring.
SPM Technical Handbook
®
as follows:
®
. Remove and discard the old
.
(4) with raised
®
(4). Place the
®
tape (7) through the
®
should be positioned
®
center retaining
®
SPM Single Point Monitor

1.6 Monitoring

The SPM is monitoring whenever a Chemcassette
is in place, the tape load lever (18) is closed, and the
power switch (8) on. The green system status LED (9)
will also be lighted.

1.7 Simulating Gas Conditions

The SPM allows two different electronic simulations of
gas conditions: a gross alarm simulation
and a full alarm simulation

1.7.1 Alarm Relays

Gross alarm simulation and full alarm simulation will
activate the alarm relays. All external devices connected
to the alarm relays will be triggered. To disable relays,
press the relay disable key (14). The relay disable LED
(13) will be lighted whenever the alarm relay contacts
®
have been disabled.

1.7.2 Gross Alarm Simulation

To make a gross alarm simulation, press the alarm test
key (10). This test activates the audible alarm and lights
the alarm lamp (16). Unless the relay disable key (14)
has been pressed, the gross alarm simulation energizes
the alarm relay contacts. The 4-20 mA output does not
change.
To reset the alarm, press the alarm reset key (11).
1-3
(Section 1.7.2)
1.7.3).
(Section
(4)
®