Cosmos XP-3118 User manual

Multi-Gas Detector
Instruction Manual
This instruction manual explains to the use of two models listed on the left
●Please keep this instruction manual available for quick reference when
needed
●Before use, carefully read this instruction manual and fully understand the
content.
■XP-3118
■XP-3168
(For Combustible gas
high-sensitivity type)
Specifications No.: XP-3000T

Table of Contents
Contents of This Packaging ………………………………………… 1
1. Introduction ………………………………………………………… 2
Explosion-proof Precautions ………………………………………………………………………………… 2
Explanations of Symbols ……………………………………………………………………………………… 2
Safe Operation ………………………………………………………………………………………………… 3
2. Component Names and Functions …………………………… 4
3. Operating Procedure ……………………………………………… 7
Procedure ……………………………………………………………………………………………………… 7
Gas Alarm ……………………………………………………………………………………………………… 10
Functions and Settings Methods……………………………………………………………………………… 11
Peak-Hold Settings …………………………………………………………………………………………… 12
Alarm Buzzer Silence Settings ……………………………………………………………………………… 13
Logging ………………………………………………………………………………………………………… 16
Data Logger Communications Screen ……………………………………………………………………… 17
Time Settings…………………………………………………………………………………………………… 18
4. Error Message (Malfunction Alarm) …………………………… 19
5. Replacement of Consumable Parts …………………………… 20
Filter Element Replacement ………………………………………………………………………………… 20
Battery Replacement ………………………………………………………………………………………… 21
Sensor Unit Replacement …………………………………………………………………………………… 22
6. Maintenance Inspection ………………………………………… 24
Daily Inspection………………………………………………………………………………………………… 24
Regular Inspection……………………………………………………………………………………………… 24
Main Replacement Parts ……………………………………………………………………………………… 24
7. Troubleshooting …………………………………………………… 25
8. Warranty …………………………………………………………… 26
9. Specifications ……………………………………………………… 27
10. Markings of explosion-proof …………………………………… 28
11. Detection Principle ………………………………………………… 29
12. Glossary …………………………………………………………… 30

−1−
-Unpacking-
The following standard components are packed together with the Gas Detector. Carefully check the
contents against the list when unpacking. If any components are missing or damaged, contact your
New-Cosmos Electric representative. A replacement for the missing or damaged component will be
sent to you.
Optional items (separately sold)
*A PC satisfying the following conditions is required.
OS: MS-Windows(R) XP
(Gas Detector operation has not been confirmed in other OS versions.)
Hard disk: Free space of 20 Mbytes or more
CD-ROM drive: A CD-ROM drive capable of reading CD-R data
(The software is provided in a CD-R disc.)
USB port: A USB1.1 or higher grade port available to Windows, which allows
connection with connector type A.
Portable Gas
Detector (with carrying case) 1
Shoulder belt 1
AA alkaline batteries (Toshiba LR6) 4
Instruction Manual 1
Warranty 1
Inspection report 1
Operating instruction card 1
1-m gas sampling hose (with drain filter and suction pipe) 1
Two spare filter elements (FE-2) 1
Log Data Collection Set *
Software (CD-R)
USB cable (1.8 m) provided
1

−2−
Introduction
Product Model Features
Multi-Gas Detector XP-3118
Simultaneously measures combustible gas
concentration in a range of 0% to 10% or 0%
to 100% (LEL) and Oxygen concentration
Multi-Gas Detector (Combustible
gas high-sensitivity type) XP-3168
Highly sensitive and ideal for the simultaneous
detection of combustible gas concentration in
ppm and oxygen concentration.
Thank you for purchasing the XP-3000 series Multi-Gas Detector. To ensure proper use, please read this
operation manual thoroughly before using the product to prevent gas accidents and oxygen deficiency
accidents, and to conduct maintenance inspections.
Be sure you fully understand this manual regardless of whether you have used a Gas Detector before or
not. Do not use the product in ways not described in the manual.
The following two types of XP-3000 series Multi-Gas Detectors are available.
1. Introduction
Operating conditions:
●Replace batteries only in area know to be NON-HAZARDOUS.
●Use the Gas detector in the carrying case specified by New-Cosmos Electric.
●As a comprehensive measure for the prevention of danger resulting from static electricity.
It is desirable for the user carrying the Gas Detector to wear antistatic clothing and
electrically conductive shoes(antistatic work shoes). The floor should also be electrically
conductive( with an electrical leakage resistance of 10 MΩor less.)
●In the measurement of the oxygen density, do not use the Gas Detector for any mixtures
other than air mixed with combustible gas or steam mixed with toxic gas.
●Warning-Substitution of components may impair intrinsic safety
●Use only Panasonic LR6XJK, Toshiba LR6, or Duracell MN1500 batteries
●Warning-Do Not Replace Batteries when an explosive gas atmosphere may be present
●Warning-Potential Electrostatic Charging Hazard-Do not remove leather case in a hazardous
location
●Warning-Do not connect anything to the USB port when an explosive gas atmosphere may
■Explanation of Symbols
The following symbols are used for safety purposes:
■Explosion-proof Precautions
Follow the explosion-proof conditions specified below for operating the Gas Detector.
DANGER
WARNING
CAUTION
: Indicates a hazardous situation that, if not avoided, could result in serious
injury or death.
: Indicates a potentially hazardous situation that, if not avoided, could result
in serious injury or death.
: Indicates a potentially hazardous situation that, if not avoided, could result
in minor injury or physical damage.
: Indicates operational advice and/or instructions.
Note

−3−
Introduction
■Safe Operation
In order to use the Gas Detector safely, be sure to observe the following items.
*Special Instruction and Warning :
Use Panasonic LR6XJK, Toshiba LR6, or Duracell MN1500 batteries. Use of any other
manufacturer or type will violate intrinsic safety requirement. Remove and replace the batteries
only in areas known to be non-hazardous.
1. Introduction (continued from previous page)
DANGER ●If the gas alarm turns ON, immediately take all necessary measures to
prevent explosion accidents and oxygen dificiency.
WARNING ●Be sure to turn ON the Gas Detector in clean air. Zero calibration (21vol%
calibration in the case of oxygen) is done automatically. Therefore, the
wrong gas concentration will be displayed if zero calibration is done in a
gas atmosphere.
●Do not close the suction port or exhaust port, or no gas detection will be
possible.
●Use the filter element in a clean state. Normal detection cannot be performed
if the filter element is dirty or moisture adheres to the filter element.
CAUTION ●Remove the batteries and store the Gas Detector if it is not to be used for a
long time.
●The Gas Detector has an explosion-proof construction. Do not disassemble
or modify the Gas Detector or change the structure or electric circuits of
the Gas Detector. Otherwise, the explosion-proof performance of the Gas
Detector will be damaged.
●Do not leave the Gas Detector in high-temperature or highly humid places,
or the performance of the Gas Detector may be adversely affected.
●Keep the Gas Detector away from radical temperature or humidity changes,
walkie-talkie, mobile phone, or its performance may be adversely affected.
●Keep the Gas Detector away from great atmospheric pressure changes, or
the performance of the sensor may be adversely affected or the sensor may
be damaged.
●Do not drop, hit, or apply a strong mechanical shock to the Gas Detector, or
its performance may be adversely affected.
●The Gas Detector is not drip-proof but the leather case protects the Gas
Detector from water drips. Keep the Gas Detector away from water drips as
much as possible.
●Keep the Gas Detector away from places close to where silicone sealing
materials are being used or silicon gas atmospheres, or its performance
may be damaged.
●Do not let the Gas Detector draw in water.
●High-density SO2or Cl2gas may shorten the life of the sensor or cause
considerable errors in the sensor.
●Do not use the Gas Detector under a pressure of two atmospheres or in
airplanes, or the Gas Detector may turn ON the alarm due to the change of
oxygen partial pressure.

−4−
Component Names and Functions
2. Component Names and Functions
No. Name Function
1 Alarm lamp Flashes at the time of gas alarming.
2 Gas sampling hose connection port Connects to the Gas sampling hose.
3 Exhaust port Exhausts sampled gas.
4 Buzzer opening Sounds a buzzer.
5 Gas type seal Displays the model number and the types of detectable gases.
6 Battery cover The cover for the battery compartment.
7 USB connector Connects to a USB cable (optional item).
(6)
(7)
(3) (1) (2)
(9)
(4)
(5)
(10)
(11)

−5−
Component Names and Functions
No. Name Function
9
LCD main screen Displays gas concentration and a variety of messages.
A. Displays gas concentration.
B. Displays the unit of measurement.
C. Displays the remaining battery level.
D. Displays peak hold values if the peak hold function
is set.
E. Displays at the time of a gas alarm.
F. Indicates that the alarm buzzer sounds at the time
of a gas alarm.
G.Displays gas concentration in bar graph form.
H. Indicates that the Gas Detector is logging (saving
data in memory).
I. Displays the range of the bar graph.
J. Displays the type of detectable gas.
10
LCD sub screen Displays gas concentration and messages.
K. Displays gas concentration.
L. Displays a gas number confi rmed if the number of
detectable combustible gases is two or more.
M.Displays the type of sample gas.
N. Displays the unit of measurement.
11
Control panel a. Used to turn the Gas Detector ON and OFF.
Used to change range selections in the gas
concentration screen.
b. Used for automatic zero calibration.
c. Used to turn ON the backlight.
The LCD sub screen will display a clock for
approximately three seconds if the button is
continuously pressed.
d. Used to stop the alarm buzzer.
• Used to check gas numbers if the number of
detectable combustible gases is two or more (with
no alarm).
• Used to make an alarm point check with the
button continuously pressed.
e. Used to make function settings.
2. Component Names and Functions (continued from previous page)
C
I
J
D E
A
F
G
H
B
L
K NM
ac
d
e
b

−6−
Component Names and Functions
No. Name Function
1 Shoulder belt mounting bracket Connects to the provided shoulder belt.
2 Sampling pipe holder Holds the suction attachment pipe.
3 Fastener Used to extract the Gas Detector or replace the battery.
4 Back pocket Used to hold the sampling hose or provided filter.
No. Name Function
1 Gas sampling hose Leads gas to the Gas Detector. (1 m long)
2 Coupler Connects to the Gas Detector.
3 Drain filter (DF-4) Prevents the penetration of water and dust into the Gas Detector.
The filter element (FE-2) is mounted.
4Suction attachment pipe (AT-3A) Gas suction port.
1-m gas sampling hose
Soft case
2. Component Names and Functions (continued from previous page)
(1)
(2)
(2)
(1)
(3) (4)
(3)
(4)

−7−
Operating Procedure
3. Operating Procedure
■Procedure
1. Inserting Batteries
The Gas Detector is delivered without batteries inserted. Refer to pages 21 to insert the provided
batteries.
2. Turning Gas Detector ON →Warming Up →Displaying Gas Concentration
Screen
(1) Press the POWER switch. The buzzer will beep and the Gas
Detector will be turned ON.
(2) The LCD main screen will display Adj and the bar graph will
count down while the Gas Detector is warming up. The LCD
sub screen will display a clock.
(3) When the sensor is stabilized, the buzzer will beep and the
gas concentration screen will be displayed.
WARNING Be sure to place the connected Gas sampling hose in clean air when
turning ON the Gas Detector. Zero calibration (21vol% calibration in the
case of oxygen) is done automatically. The wrong gas concentration
will be displayed if zero calibration is done in gas atmosphere.
WARNING Be sure to conduct a daily inspection before
performing detection work (see page 24).
CAUTION Even after displaying the gas concentration screen, zero indication
might be unsettled and flash. In that case, wait for three minutes and
conduct zero adjustment (refer to page 9).
Note If an error message is displayed, refer to Error Messages on page 19.
Procedure 1Insert
the
batteries. 2Turn ON
t h e G a s
Detector.
Displays the gas
concentration
screen.
Warms
up. 3Detects 4Turn OFF the Gas Detector

−8−
Operating Procedure
3. Operating Procedure (continued from previous page)
3. Detection
●Gas Concentration Screen
Gas is detectable when the gas concentration screen is displayed.
The LCD main screen will display GAS1 and the LCD sub screen will display GAS2.
→Refer to page 10 for information on the gas alarm.
●Sample Gas Check Method
If the number of detectable combustible gases is two or more, the gas number can be confirmed
by pressing the BZ.STOP switch. The screen will return to the gas concentration display in
approximately three seconds. To change the sample gas, refer to page 14.
*The gas number, however, cannot be confirmed during a gas alarm.
Note The operating instruction card provided with the Gas Detector shows the gas
numbers and corresponding detectable gases if the number of detectable
combustible gases is two or more.
Note If it is difficult to see the LCD at night, press the LIGHT switch and turn ON the LCD
backlight. The backlight will turn OFF in approximately 30 seconds.
Gas number
〈Gas Concentration Screen〉

−9−
Operating Procedure
3. Operating Procedure (continued from previous page)
●Zero adjustment
To conduct zero calibration, press the AIRADJ. switch for approximately three seconds. The buzzer
will then beep once, followed by two beeps after a short pause. If zero calibration fails, the buzzer
will beep once followed by continuous beeps. This means that a gas in the air is affecting the Gas
Detector. In that case, conduct zero calibration in clean air. The sensor may not operate stably,
depending on the environment, or if the Gas Detector has not been used for a long time. If that
is the case, the gas concentration value will flash. If the value flashes, be sure to conduct zero
calibration, or the precise measurement of gas may not be possible.
●Oxygen Sensor Life Display
The E indication flashes as a preliminary announcement of the
oxygen sensor's life expiration. When E changes from flashing to
steady illumination, the life of the oxygen sensor is considered to
have expired. Refer to page 22 to replace the sensor unit.
If the Gas Detector is not turned on in clean air, E may be displayed
regardless of the lifetime condition of the sensor. Always turn ON the
Gas Detector in clean air.
●Range
To change the bar graph range, press the POWER switch while the gas concentration screen is
displayed. The range will be set to AUTO by default when the Gas Detector is turned ON. Each time
the POWER switch is pressed, the display will show the next range in the order of H, L, and AUTO.
Flashes
Press SYMBOL for
approximately 3 s.
Press SYMBOL for
approximately 3 s.
Completion of zero calibration
Press SYMBOL Press SYMBOL.

− 10 −
Operating Procedure
Note If the BZ.STOP switch is continuously pressed while the gas concentration screen
is displayed, the alarm point will be displayed for approximately three seconds, and
the preset alarm point can be checked.
3. Operating Procedure (continued from previous page)
■Gas Alarm
If the gas concentration reaches the alarm level, the gas alarm will
be turned ON. The alarm lamp will fl ash along with GAS1 or GAS2.
When the gas concentration drops below the alarm level, the gas
alarm will be automatically turned OFF.
Only the gas alarm buzzer will stop if the BZ.STOP switch is
pressed at the time of a gas alarm.
If the gas concentration reaches the alarm level again, the gas
alarm buzzer will sound again.
If the pointer scales out when detecting high-concentration gas, OL will be
displayed.
High-concentration gas may have an adverse infl uence on the sensor.
Promptly introduce cleaned air into the Gas Detector. Turn OFF the Gas
Detector after checking that the gas concentration falls and the Gas
Detector is free of gas. The service range for oxygen is 25.1vol% to
50.0vol%. The Gas Detector will display OL if the concentration is 50.1vol%
or higher.
〈AUTO range〉
When gas is detected, the digital numeric value and the bar graph level will increase
simultaneously.
If the bar graph level exceeds the full scale, the range will change from L to H automatically and
the scale of the bar graph will change. Furthermore, if the gas concentration drops, the range will
automatically return to L.
4. Turning Power OFF
When the POWER switch is pressed for approximately three seconds, the buzzer beeps, and the
Gas Detector will be turned OFF.
CAUTION To turn OFF the Gas Detector, wait until the gas concentration drops in
clean air.
Flashes
The alarm lamp flashes.
The detected gas corresponding to
GAS1 has reached the alarm level.

− 11 −
Operating Procedure
3. Operating Procedure (continued from previous page)
■Functions and Setting Methods
Press the MENU switch for approximately three seconds on the gas concentration screen. The
buzzer will beep once, followed by two beeps after a short pause, and the following settings can be
made and executed.
The following settings and execution can be reset by turning OFF the Gas Detector.
Item Function Reference
page
1. Peak hold function Continues displaying the peak value of the detected
gas concentration. P. 12
2. Alarm buzzer silencing The gas alarm buzzer will not sound when the
detected gas concentration reaches the alarm level. P. 13
3. Detectable gas selection Allows detectable gas selection if the number of
detectable combustible gases is two or more. P. 14
4. LCD selection Displays GAS2 on the LCD main screen. P. 15
5. Execution and completion of
logging
Logs (saves in memory) the detected gas
concentration and date. To read the data, a PC (see
page 1 for the required conditions) and Log Data
Collection Set (optional item) are required.
P. 16
6. Data logger communication
Reads logged data. A PC (see page 1 for the
required conditions) and Log Data Collection Set
(optional item) are required.
P. 17
7. Time settings Makes date, month, year, and time settings. P. 18
Peak hold setting screen Buzzer silence setting screen Detectable gas setting screen LCD selection screen
Time setting screen Data logger
communication screen
Press
SYMBOL.
Press
SYMBOL.
Logging execution screen
Initial menu screen

− 12 −
Operating Procedure
■Peak Hold Settings
With the peak hold function set, the peak value of gas concentration detected will be displayed
continuously.
(1) Press the MENU switch for approximately three seconds
while the gas concentration screen is displayed to display
the peak hold setting screen (see page 11).
(2) Press the MENU switch to start the peak hold settings.
The 1 PE indication will change from fl ashing to steady
illumination, and OFF will change from steady illumination
to flashing.
(3) Press the LIGHT switch ( ▲) to change from ON to OFF.
(4) Press the MENU switch to enter the settings. The OFF
indication will change from fl ashing to steady illumination,
and 1PE will change from steady illumination to flashing.
(5) Press the POWER switch and return to the gas
concentration screen. To cancel the peak-hold function,
take steps similar to the above to turn ON the function.
3. Operating Procedure (continued from previous page)
Note The peak hold function can be
canceled by turning the Gas Detector
OFF, then ON again.
Flashes
Flashes
Press
SYMBOL.
Flashes
Flashes
Flashes
Flashes
Press
SYMBOL.
Press
SYMBOL.
Press
SYMBOL.

− 13 −
Operating Procedure
■Alarm Buzzer Silence Settings
If the alarm buzzer is muted, the alarm buzzer will not sound when the gas concentration reaches
the alarm level.
(1) Press the MENU switch for approximately three seconds to
display the alarm buzzer silence screen. Refer to page 11.
(2) Press the MENU switch to make the alarm buzzer silence
settings.
The 2 bu indication will then change from flashing to steady
illumination, and ON will change from steady illumination to
flashing.
(3) Press the BZ.STOP switch ( ▼) and change ON to OFF.
［ ］will change to［ ］.
(4) Press the MENU switch to enter the settings. The OFF
indication will then change from flashing to steady
illumination, and 2 bu will change from steady illumination
to flashing.
(5) Press the POWER switch to return to the gas concentration
screen.
Take similar steps to change the display OFF to ON in
order to cancel the alarm buzzer silencing.
3. Operating Procedure (continued from previous page)
Note The alarm buzzer silence can be
canceled by turning the Gas Detector
OFF, then ON again.
Flashes
Flashes
Press
SYMBOL.
Flashes
Flashes
Flashes
Press
SYMBOL.
Press
SYMBOL.
Press
SYMBOL.

− 14 −
Operating Procedure
■Changing the Sample Gas
Take the following steps to select the type of sample gas if there are two or more detectable gases.
(1) Press the MENU switch for approximately three seconds
while the gas concentration screen is displayed to display
the sample gas selection screen. Refer to page 11.
(2) Press the MENU switch to start the sample gas selection
settings.
The 3 GAS indications will then stop flashing, and 1-01 will
start flashing.
(3) Press the LIGHT switch ( ▲) to select the gas number.
(4) Press the MENU switch to enter the settings. The 1-02
indication will then change from flashing to steady
illumination, and 3 GAS will change from steady
illumination to flashing.
(5) Press the POWER switch to return to the gas concentration
screen.
Press the BZ.STOP switch to display the gas number that
has been set. (No alarm.)
3. Operating Procedure (continued from previous page)
Note The gas number can be reset to 1-01 by
turning the Gas Detector OFF, then ON again.
Flashes
Flashes
Press
SYMBOL.
Flashes
Flashes
Flashes
Press
SYMBOL.
Press
SYMBOL.
Press
SYMBOL.

− 15 −
Operating Procedure
■LCD Selection
The LCD main screen will display GAS2.
(1) Press the MENU switch for approximately three seconds
while the gas concentration screen is displayed to display
the LCD selection screen (see page 11).
(2) Press the MENU switch and make LCD selection settings.
The 4 Lcd indication will then change from flashing to
steady illumination, and GAS1 and GAS2 will change from
steady illumination to flashing.
(3) Press the [BZ.STOP] switch ( ▼) to change GAS1 to GAS2
on the LCD main screen and GAS 2 to GAS 1 on the LCD
sub screen.
(4) Press the MENU switch to enter the settings. Then GAS1
and GAS2 will then change from flashing to steady
illumination.
(5) Press the POWER switch to return to the gas concentration
screen.
To display GAS1 on the LCD main screen again, take the
same steps.
3. Operating Procedure (continued from previous page)
Note To display GAS1 on the LCD main screen
again, turn the Gas Detector OFF, then ON
again.
Flashes
Flashes
Press
SYMBOL.
Flashes
Flashes
Flashes
Press
SYMBOL.
Press
SYMBOL.
Press
SYMBOL.

− 16 −
Operating Procedure
■Logging
Take the following steps to log the detected gas.
(1) Press the MENU switch for three seconds while the gas
concentration screen is displayed to display the logging
start screen. Refer to page 11.
The bar graph shows the rough possible logging capacity
as a percentage. Refer to the operation manual of the Log
Data Collection Set for sampling cycle settings.
(2) Press the MENU switch to begin the logging start setting.
The 5 LG indication will then change from flashing to
steady illumination, and OFF will change from steady
illumination to flashing.
(3) Press the LIGHT switch ( ▲) to change OFF to ON.
(4) Press the MENU switch to enter the settings. The ON
indication will then change from flashing to steady
illumination, and 5 LG will change from steady illumination
to flashing.
(5) Press the POWER switch to return to the gas concentration
screen.
Make sure that the REC indicator is flashing.
To cancel logging, take steps similar to the above and turn
OFF the function.
The Gas Detector will stop logging if the Gas Detector is
turned OFF, or each error is displayed (see page 19), or
the memory capacity is low.
3. Operating Procedure (continued from previous page)
Note Refer to the operation manual of the Log
Data Collection Set for details.
Logger capacity
Flashes
Flashes
Press
SYMBOL.
Flashes
Flashes
Flashes
Flashes
Press
SYMBOL.
Press
SYMBOL.
Press
SYMBOL.

− 17 −
Operating Procedure
■Data Logger Communications Screen
Take the following steps to read logging data.
In order to read data, a personal computer (see page 1) and Log Data Collection Set (optional item)
are required.
(1) Connect a USB cable to the USB connector on the bottom
of the Gas Detector.
(2) Press the MENU switch for three seconds while the gas
concentration screen is displayed to display the data logger
communications screen. Refer to page 11.
(3) When the MENU switch is pressed, OFF will stop flashing
and ON will start flashing. Data logger communication
with the PC will then be possible. Operate the PC for data
logger communication.
(4) When communication is finished, press the POWER switch
twice to return to the gas concentration screen.
(5) When finished, replace the gas detector into the case,
part No.3620584053, and zip it shut before entering the
hazardous location.
3. Operating Procedure (continued from previous page)
Note Refer to the operation manual of the
Log Data Collection Set for details.
WARNING Ensure there are no explosive gas atmospheres present before connecting
anything to the USB port of the gas detector. For USB port, note that
Um=5.5V
Flashes
Flashes
Press
SYMBOL.

− 18 −
Operating Procedure
■Time Settings
(1) Press the MENU switch for three seconds while the gas
concentration screen is displayed to display the time setting
screen. Refer to page 11.
(2) Press the MENU switch to make time settings.
The CL5 indication will then start flashing. Use the
BZ.STOP switch ( ▼) to select the setting unit from Year,
Month, Date, Hour, and Minute.
(3) Minute Setting
When the MENU switch is pressed, CL5 will change from
flashing to steady illumination, and the minute value will
change from steady illumination to flashing.
Use the BZ.STOP switch ( ▼) or the LIGHT switch ( ▲) to
change the setting and press the MENU switch to enter the
value.
(4) Hour Setting
When the MENU switch is pressed, CL4 will change from
flashing to steady illumination, and the hour value will
change from steady illumination to flashing.
Use the BZ.STOP switch ( ▼) or the LIGHT switch ( ▲) to
change the setting and press the MENU switch to enter the
value.
(5) Date Setting
When the MENU switch is pressed, CL3 will change from
flashing to steady illumination, and the date value will
change from steady illumination to flashing.
Use the BZ.STOP switch ( ▼) or the LIGHT switch ( ▲) to
change the setting and press the MENU switch to enter the
value.
(6) Month Setting
When the the MENU switch is pressed, CL2 will change
from flashing to steady illumination, and the month value
will change from steady illumination to flashing.
Use the BZ.STOP switch ( ▼) or the LIGHT switch ( ▲) to
change the setting and press the MENU switch to enter the
value.
(7) Year Setting
When the MENU switch is pressed, CL1 will change from
flashing to steady illumination, and the year value will
change from steady illumination to flashing.
Use the BZ.STOP switch ( ▼) or the LIGHT switch ( ▲) to
change the setting and press the MENU switch to enter the
value.
(8) Press the POWER switch twice to return to the gas
concentration screen.
3. Operating Procedure (continued from previous page)
Flashes
Flashes
Flashes
Flashes
Flashes