System Sensor Sales and Service
System Sensor Headquarters
3825 Ohio Avenue
St. Charles, IL 60174
Ph: 800/SENSOR2
Fx: 630/377-6495
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www.systemsensor.com
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Model
Description
SENS-RDR
Sensitivity reader for i3 series smoke detectors
© 2002 System Sensor. The company reser ves the right to change product specifications without notice.
A05-0322-004•11/02•#987
Specifications
Batteries
2 – AA alkaline batteries (not included)
Dimensions
Length: 7
1
⁄
8
inches (181 mm)
Width: 1
3
⁄
8
inches (35 mm)
Depth: 1
1
⁄
8
inches (29 mm)
Weight
8 oz. (225 grams)
LCD Status Indications
Status Indication
Action
GOOD
The detector is within its sensitivity range. No action is necessar y at this time.
SERVICE
The smoke detector’s sensing chamber requires cleaning for continued reliable operation. Refer to the i3 Series manual
for proper maintenance procedures.
REPLACE
The smoke detector is failing and should be replaced immediately.
Sensitivity reader shall be a System Sensor
i3 series model number SENS-RDR, listed
with Underwriters Laboratories as a smoke
detector accessory. The reader shall be
capable of reading the detector’s sensitivity
without the need for a physical connection
to the detector, and shall not require the use
of a voltmeter or multi-meter. The reader
shall offer the capability of hand-held use
or shall accept a threaded extension pole.
The reader shall include an LCD screen
which indicates a detector’s sensitivity in
terms of percent per foot obscuration and a
textual status indication. The reader shall
operate with two AA alkaline batteries and
shall be capable of indicating a low battery
condition on the LCD screen.
Architect/Engineer Specifications
Ordering Information
1. Turn the reader on by pressing and hold-
ing the button for approximately 2 sec-
onds until the reader sounds. The LCD
will display the word “READY”. The
“READY” status indicates that the
SENS-RDR is ready for accepting data
from an i3 Series smoke detector.
2. Place the reader by the smoke detector
being tested. Position the reader above
the oval depression near the word
“PAINT” (See Figure 1). Position the
reader below the detector at an angle
(See Figure 2). A ledge and an anti-skid
tip is provided on the reader to maintain
the reader in place while it reads the
sensitivity.
3. Hold the reader in this position up to 10
seconds until the reader sounds and the
reader’s red LED illuminates. (
Note:
If
the reader does not sound after 10 sec-
onds, verify that the reader is properly
positioned, and the LCD displays
“READY”.)
4. The LED and sounder indicate a valid
reading is received. The reader will
automatically display two results. The
first is a percent per foot obscuration
measurement, which is displayed for
approximately 3 seconds, followed by a
textual status indication. The reader will
continue to display both results for up
to 30 minutes, or until the reader is
reset.
5. To measure the sensitivity of the next
detector, reset the reader by momentarily
pressing the button. The LCD will again
display the word “READY”. Repeat
steps 2 through 4, as necessary.
6. When finished, turn off the reader by
pressing and holding the button for
approximately 2 seconds until the reader
sounds.
SENS-RDR Operation
OR
LED
RECESSED TEST SWITCH
POSITION SENS-RDR
AT AN ANGLE ON THE
OVAL AREA OR AT THE
CHAMBER OPENING
BY THE WORD “PAINT”
Figure 1: Reader location on i3 series detectors
Figure 2: Position Reader on i3 series detectors
