Data Sheet for Product

s Canada Limited Cerberus® PRO
Operation ─ (continued)
Field-Device Programmer / Test Unit
Model OOH941 is compatible with the Device Program / Test
Unit accessory, which is used to program and verify the
address of the detector. The technician selects the accessory’s
program mode, and enters the desired address. Model 8720
/ DPU automatically sets and verifies the address and tests the
detector.
Model 8720 / DPU eliminates the need for cumbersome,
unreliable mechanical programming methods
─ such as dials
or switches
─ and reduces installation and service costs by
electronically programming and testing the detector prior to
installation.
Model 8720 / DPU operates on AC power or rechargeable
batteries, providing flexibility and convenience in
programmer and testing equipment from practically any
location.
When in ‘test’ mode, Model 8720 / DPU will perform a series
of diagnostic tests without altering the address or other
stored data, allowing technicians to determine if the detector
is operating properly.
Field-selectable application profiles
Model OOH941 provides 22 user-friendly, field-selectable
application profiles, indentified with universally known
names (e.g.
─ Hotel, Telco, Office, Parking Garage, Dormitory,
and Data Center etc.) Refer to installation manual:
P/N ─ A6V10324655 for a complete list and description of
application profiles.
Due to generic-name classification, no cross-reference
tables are required as the application name resides in the
panel’s configuration tool. This user-friendly feature
─
along with the algorithms provided by ASAtechnology ─
provides a reliable, field-configurable detector suitable for
an array of applications.
Field-selectable temperature settings
Model OOH941 provides five (5) field-selectable temperature
thresholds, ranging from 135°F to 175°F (57°C to 79°C), with
fixed and rate-of-rise options. These ranges provide
maximum flexibility to program and to easily adjust the
temperature settings that suit multi-application needs within
a building or changing environmental conditions.
Additionally, Model OOH941 can be configured to provide a
low-temperature warning signal at 40°F (4.4°C).
This configuration (along with connection to a compatible
fire alarm control panel {FACP}) meets NFPA 72 requirements
for sprinkler-temperature monitoring, and serves as
prevention of water freezing in pipes for water-based
suppression systems.
Ambient supervisory feature for
temperature-threshold ranges
Another highlight for Model OOH941 is supervision of
ambient temperatures, allowing the end user to set an
unique, specified warning point at a customized temperature
threshold ranging from -4°F to 120°F (-20°C to 49 °C).
This feature is practical for monitoring of machinery; special
processes, or for environments where maintaining a
temperature is critical as an early-warning supervisory signal.
Self-monitoring for smoke-sensor sensitivity
Model OOH941 provides an automatic self-monitoring
sensitivity check that complies with the NFPA 72 sensitivity
requirements. When connected with a compatible FACP, it
provides automatic and dynamic sensitivity verification within
the agency-listed-and-approved limits. Besides checking for
sensor integrity and automatic environmental compensation,
Model OOH941 provides a display and report of sensitivity in
percent-per-foot (or percent-per-meter) at the FACP.
Profile Overview
The Model OOH941 detector contains a tri-color LED
indicator, capable of flashing any one (1) of three (3) distinct
colors: G
REEN, YELLOW, or RED. During each flash
interval, the microprocessor-based detector monitors
the following:
• Smoke in its sensing chamber
• Smoke sensitivity is within the range indicated
on the nameplate label
•
Internal sensors and electronics
Based on the results of the monitoring,
the LED indicator flashes the following:
Flash
Color
Condition
Flash
Interval
(in seconds)
Green*:
Normal supervisory operation.
Smoke sensitivity is within rated
limits.
10
Yellow:
Detector is in trouble and needs
replacement.
4
Red:
Alarm condition. 1
No Flash:
Detector is not powered.
─ ─
* LED can be turned OFF.
Please follow the corresponding description of the panel used.
A quick, visual inspection is sufficient to indicate the
condition of the detector at any time.
If more detailed
information is required, a printed report can be provided
from each Cerberus PRO FACP, indicating the status and
settings assigned to each individual detector.