3825 Ohio Avenue • St. Charles, IL 60174

Phone: 800-SENSOR2 • Fax: 630-377-6495

©2006 System Sensor.

Product specifications subject to change without notice. Visit systemsensor.com for

current product information, including the latest version of this data sheet.

A05-0322-006 • 8/06 • #1676

Ordering Information

Part No.

Description

SENS-RDR

Sensitivity reader for i3 series smoke detectors

Specifications

Architectural/Engineering Specifications

Sensitivity reader shall be a System Sensor 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.

Physical Specifications

Batteries

2 – AA alkaline batteries (not included)

Dimensions

Length: 71⁄8 inches (181 mm); Width: 13⁄8 inches (35 mm); Depth: 11⁄8 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 necessary 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.

SENS-RDR Operation

1. Turn the reader on by pressing and holding the button for approximately 2 seconds 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 a compatible System Sensor smoke 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

seconds, 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.

OR

PUSH RECESSED

SWITCH WITH A

0.18″ MAX.

DIAMETER TOOL

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 a compatible System Sensor smoke detector

Figure 2: Position Reader on a compatible System Sensor smoke detector