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4098-9839
Smoke Detector Data Reader
Operating Instructions
1998 Simplex Time Recorder Co., Gardner, MA 01441-0001 USA
1998 Simplex International Time Equipment Co., Ltd., Mississaugua, Ontario L4V 1H3 Canada.
All specifications and other information shown were current as of publication, and are subject to change without notice.
574-442
Rev. B
DO NOT INSTALL ANY SIMPLEX PRODUCT THAT APPEARS
DAMAGED. Upon unpacking your Simplex product, inspect the contents of the
carton for shipping damage. If damage is apparent, immediately file a claim
with the carrier and notify Simplex.
TrueAlarm Photoelectric Smoke Detectors output diagnostic data encoded in
each visible LED pulse. The encoded data provides a present status indication
relevant to testing and inspection. The 4098-9839 Data Reader hand-held test
unit, is used to read, display, store, and download diagnostic data. The data
reader is battery powered, lightweight, and easy to read and interpret. It is
capable of storing test data for downloading to the Test and Inspection
Reporting System. Memory is non-volatile, allowing the reader to be powered
down without losing data. The reader decodes a detector’s diagnostic data and
provides immediate notification if the detector is outside its calibration limit.
The reader also has the capability to detect and indicate low voltage of its 9V
battery.
WARNING:
Do not depress all push buttons on the data reader
simultaneously, this can clear the memory.
Power is applied via an ON/OFF switch. When powered ON, or by pressing the
SCAN button, the reader goes into scan mode, indicated by an illuminated red
LED. Point the reader to the appropriate detector’s LED and bring it to within
12-inches of the detector. When a valid reading is made, the green LED is
illuminated. When the diagnostic data contains a trouble message the red LED
remains illuminated, otherwise only the green LED is illuminated.
To scan detectors that are located in inaccessible areas, attach the pole mounting
bracket (provided) to the reader. With the bracket mounted to the reader it can
be attached to a testing pole. See Figure 2 for mounting instructions.
Note: Refer to Table 4 for a description of trouble flags and other diagnostic
data.
Table 1. Status Descriptions for LED Lights
A three-digit integer number is displayed to indicate the memory position that is
available for the next storage event. When a valid reading is made, and the
green LED is ON, the data can be stored into non-volatile memory for later offline downloading. To store the data, press the STORE button and hold it down
for approximately two seconds until the green LED turns OFF and the memory
counter increments to the next number. To increment the memory counter
without a valid reading, hold the STORE button down for approximately two
seconds until the counter increments to the next number. This loads the memory
position with all zeros.
Cautions and Warnings
Introduction
Scanning
Storing the Data in
Non-volatile Memory
Red LED Green LED MODE
● ❍
Reader is in scan mode.
❍ ●
Valid reading with no trouble condition.
● ●
Valid reading with trouble condition.
TrueAlarm
®
is a registered trademark of Simplex Time Recorder Co.
Covered b
y
one or more of the following patents: 5155468, 5173683, 5691699.
● indicates illuminated LED ❍ indicates LEDs that are OFF
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When finished with scanning and storing, or if the limit of the memory is
reached, the data in the non-volatile memory can be downloaded through the
serial port located on the right side of the data reader. A serial cable must
connect the reader to a computer with upload capabilities. The data is
transferred by depressing the D/L button. If the reader is holding a valid
reading, and the green LED is lit, hold down the D/L button for approximately
two seconds. This is to protect against inadvertent clearing of the last reading if
it has not been stored.
To clear the non-volatile memory, power down the data reader then, while
pressing both the STORE and D/L buttons, power up the reader. Hold down
both buttons until the display indicates “#001” on the memory counter. This
procedure takes several seconds.
The display is a Liquid Crystal Display with two rows of 16 characters.
Examples of the display are shown below in Figure 1. When a valid reading is
made, the diagnostic data Hex code is first displayed. Next “XX%ALM” is
shown, where XX% is the percent to alarm of the last sample, then “#YYY”
where YYY is the next available non-volatile memory location. When the
battery runs low, a low battery message is displayed.
Figure 1. Examples of LCD Messages on the Reader
Refer to the 4098 Detectors, Sensors, and Bases Application Manual (574-709)
that was shipped with the fire alarm system for detector specification data and
maintenance. Refer to Table 2 for a listing of compatible detectors.
Table 2. Compatibility Table
Detector PID No. Description
4098-9601 Photoelectric Smoke Detector
4098-9602 Photoelectric Smoke/Heat Detector
4098-9605 Photoelectric Smoke Detector (3.5% ft. sensitivity)
Downloading (D/L) the Data
from Memory
Clearing the Memory
Display
Compatibility
SSD SERVICE TOOL
V1.02 #YYY
Power Up or
Scan mode
350E4C3D4OF8E1OE
1B XX%ALM #YYY
Diagnostic
Data
*** LOW BAT ***
V1.02 #YYY
Low Battery
Indication
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Table 3 describes the specifications of the data reader.
Table 3. Performance Specifications
Specification Value
Operating Voltage 9 VDC (one 9V battery)
Average Current 20 mA
Battery Life (battery not provided) 20 hours with a 550 mAh Alkaline Battery
Low voltage battery detect 7.2 VDC
Storage & Operating Temperature
32°F - 158°F (0°C-70°C)
Optical Range Up to 12 Inches (30 cm)
Non-volatile Memory 660 Readings
Serial Download Format 9600, 8 data bit, no parity, 1 stop bit
Serial Data Port Transmit (Tx) Pin 2, Ground (GND) Pin 5
Performance Specifications
Serial Data Port
Green LED
LCD Displa
y
Push Buttons
ON/OFF Switch
Figure 2. Data Reader
Focusing Lens
Red LED
Housing for 9V
Battery (on the back
of the Reader)
To attach the pole mounting
bracket onto the reader take the
following steps.
1. Unscrew and remove the
two screws on the bottom
back of the reader.
2. Slide the mounting bracket
into place (shown in
Figure 2).
3. Use two screws (412-032)
with the mounting bracket
to secure the bracket into
place.
Mounting Screws (2)
(STR# 412-032)
Extendible pole
mounting bracket
(677-261)
Socket for
extendible
p
ole
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Table 4 provides a description of trouble flags and other diagnostic data for the
data reader. The example shown is with the following diagnostic data:
450E4C3E400E410E551B*
Table 4. Diagnostic Data
Byte Description Value Example
1 Synchronization Nibble and
Product Identification Nibble
(SYNC)
HEX
15 = (not yet assigned)
25 = (not yet assigned)
35 = 4098-9601
35 = 4098-9605
35 = 4098-9607
45 = 4098-9602
55 to 58 = (for R&D use only)
59 to 5F (not yet assigned)
45
HEX
= Indicates Device
4098-9602
2 Sample Pulse
(PULSLO)
HEX
smoke sample value
0E
HEX
= 14
DEC
3 Alarm Threshold
(AT)
HEX
factory calibrated alarm threshold value
4C
HEX
= 76
DEC
4 Alarm Threshold - Factory
Clean Air
(DELTA)
HEX
factory calibrated alarm delta value
3E
HEX
= 62
DEC
5 Trouble and Status Flags
(STATUS)
HEX
(Several flags could be set
simultaneously therefore the
Hex code should be translated
to binary to see which bits
have been set.) See Table 5.
8 7 6 5 4 3 2 1 (BIT)
High sensitivity
(chamber contamination > ∆/2)
Exceeded limit to chamber
compensation
Magnet test mode
Factory test mode
Thermistor alarm
Thermistor test error
(thermistor open)
Manufacturing location
(1=Westminster, 0 =other)
Alarm
40
HEX
= 01000000
BIN
BIT 7 Indicates manufacturing
location is Westminster
6
Mfg-Cal.Year (5 bits = 32
years) + P/O Week # Data
(3 bits)
(CAL-MSB)
HEX
year=1996+first 5 bits (see example)
week # = last 3 bits of this byte + first 3 bits of next byte
(6 bits total)
0E
HEX
= 00001110
BIN
Year = 00001
BIN
= 1
DEC
Year = 1996 + 1 = 1997
7 P/O Week # Data (3 bits) +
Firmware Ver. (5 bits)
(CAL-LSB)
HEX
First 3 bits are the rest of the week # data (of previous
byte) last 5 bits are the firmware version (up to 32
versions)
41
HEX
= 01000001
BIN
Week = 110010
BIN
= 50
DEC
Week = 50
Rev = 00001
BIN
=1
DEC
Rev. 1
8 Sample Pulse Average Value
(RAAV)
HEX
Chamber compensation value, used to adjust the actual
alarm threshold
0E
HEX
= 14
DEC
9 Thermistor Value
[4098-9602 ONLY]*
(THMVAL)
HEX
Thermistor ramp count, used to calculate the
temperature value
TEMP (F°) = [THMVAL
DEC
/2] + 27
55
HEX
= 85
DEC
[85/2] + 27 = 70° F
9/10 Check sum
(CHKSUM)
HEX
Count used to verify data integrity of bit stream
1B
HEX
= 27
DEC
* Model Number 4098-9602 outputs 10 bytes of data. All other models output 9 bytes.
Diagnostic Data
Information in shaded cells are not for field use
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Table 5. Conversion Table
Conversion Table
Decimal
Hex
Binary
(LSN)
Binary
(MSN)
Table Key
27
1B
0001
1011
Example
Decimal = 27
Hex = 1B
Binary 0001 1011
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574-442
Rev. B
The data reader displays a message (similar to the one shown in Figure 3) when
a compatible detector is scanned and a valid reading is made. The data shown as
“20%ALM” represents the value of the last smoke measurement in terms of
“percent to alarm”. For example, if the last measurement returned a value above
the factory set “Clean Air Value” and is half way to the factory set “Alarm
Threshold”, the display indicates “50%ALM.” Since the operator is scanning
the device in clean air, it is assumed that the increase in the smoke measurement
is due to contamination of the smoke sampling chamber.
Typically, increased contamination of the smoke sampling chamber
automatically leads to increased smoke sensitivity of the detector. However, in
this case, the Simplex TrueAlarm detector compensates for chamber
contamination. The TrueAlarm technique compensates up to 50% to alarm
(50%ALM), while maintaining the detector’s full factory set sensitivity. If left
uncleaned, any additional contamination results in increased smoke sensitivity.
Note: The detector must be cleaned or replaced if it exceeds 50% to alarm
(50%ALM), or if both LEDs are illuminated.
The detector requires a full 24 hours to complete chamber compensation,
initially and if the device is reset, it returns to its factory set Alarm Threshold
value (see Figure 3). This leads to higher sensitivity initially, but as the
compensation proceeds the detector returns to its compensated sensitivity.
Interpreting the Data Reader’s
Display
Figure 3. Interpreting the Data Reader’s Display
Data Reader Displa
y
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