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■ XA-4400 ■ XA-4300H ■ XA-4300C ■ XA-4200KS ■ XA-4200KH This instruction manual explains the use of eight models listed in the left. ■ XA-4200KC • Keep this instruction manual available for quick reference when needed. ■ XA-4300H-n • Read this instruction manual and understand the information before using ■...
Included in this Package The following items are enclosed in the package. Carefully check all items listed below before use. Contact your New Cosmos representative if any items are broken or missing. Multi-gas Detector Belt clip (with three screws) Two spare filter elements...
1. Introduction Thank you for purchasing the Multi-gas Detector. Be sure to read this instruction manual and use the product properly to prevent gas accidents and for inspection and maintenance. This Multi-gas Detector detects up to four types of gases, oxygen (O2), combustible gas (COMB), hydrogen sulfide (H2S) and carbon monoxide (CO), and displays all gas concentration values at the same time.
Explanation of Symbols • The following symbols are used for safety purposes: Indicates a hazardous situation that may result in serious injury DANGER or death, if not avoided. Indicates a potentially hazardous situation that may result in WARNING serious injury or death, if not avoided. Indicates a potentially hazardous situation that may result in CAUTION minor injury or physical damage, if not avoided.
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• The gas sensor contains harmful substances. When disposing of the sensor, return to New Cosmos Electric or dispose as industrial waste. • The battery life will be shorter when using the Multi-gas Detector at low temperature than using at normal temperature due to the battery characteristics.
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Name Function Battery cover Cover for the battery compartment. Alarm lamp Flickers when a gas alarm is activated. Buzzer port Buzzer sounds. LCD Display Displays the gas concentration value and other messages. Oxygen Combustible a. Remaining battery level: High・・・・・・・・・・ Low Replace Hydrogen Sulfide...
Installation Procedure of Belt Clip • Install the belt clip to wear the Multi-gas Detector on the belt. Please follow the instructions below. ・ Use only the provided screws (M2.6 x 4, truss head) to attach the CAUTION belt clip. ・...
3. Operating Procedure Operating Procedure • WARNING Be sure to perform Maintenance Check (on page 34) before use. Displays <Gas Warm- 2. Detection STEPS 1. Turn ON Concentration 3. Turn OFF screen> 1. Turn on the power → Warm-up → Displays <Gas Concentration screen> •...
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2. Detection <Gas Concentration Screen> Oxygen When <Gas Concentration screen> is displayed, it is ready for detection. Combustible Hydrogen • See “How to Read the Gas Sulfide Carbon Concentration” on page 10. Monoxide • See “Gas Alarms” on page 11. ・...
How to Read Gas Concentration • Four gas concentration values are displayed at the same time. Two different types of display are available. (See on page 27 for display setting). However, the name and concentration of the corresponding gases will be displayed when the monitoring gas is two or three types.
▪ Condition of auto backlight after timeout 1) Turns on when it becomes dark again. 2) Turns on by tapping the switch in the dark place. 3) Turns on when it detects gas in the dark place. Gas Alarm • When the gas concentration reaches its alarm set value, the Multi-gas Detector activates gas alarm.
TWA Alarm • The Multi-gas Detector integrates the concentration of gas every minute from power ON to OFF and activates the alarm when the integrated value exceeds the following value. The TWA alarm will not go off until the power is turned OFF. Press and hold the BZ.
Peak-hold Function • The peak hold function displays the peak value of detected gas concentration after setting. The highest concentration values of combustible gas (COMB), hydrogen sulfide (H S), and carbon monoxide (CO), and the lowest concentration value (default) of oxygen (O ) are kept and displayed.
Functions and Setting • <MENU screen> Press the [POWER/MENU switch] for one second to display <MENU screen>. From this Alarm test screen, perform and configure each function. Data logging Set up [▲]:Select [MENU]:OK [MENU(Tap)]:Return Reference Item Functions and settings page Operation test for alarm lamps and buzzer.
Alarm Test • Functions and Setting: <MENU screen> Press the [POWER/MENU switch] for one second to display <MENU screen>. Alarm test Data logging Set up “Alarm test” is pre-selected. Press and hold the [POWER/MENU switch] [▲]:Select [MENU]:OK [MENU(Tap)]:Return <ALARM TEST screen>is displayed, the alarm lamp flickers, and the buzzer <ALARM TEST screen>...
Logging • Functions and Setting: Change the batteries before fully discharged. NOTE The data will remain about one week when the batteries run out. The data will be deleted in 24 hours when the batteries are removed.* (* It depends on the conditions and temperature.) <MENU screen>...
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To start Logging: NOTE Set the clock before starting the logging. Follow steps 1 to 2 on page 16 to display <DATA LOGGER screen>. <DATA LOGGER screen> logging data records NOTE DATA LOGGER instantaneous value in one cycle. Start "Interval" (logging cycle) Clear...
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To stop Logging: <Logging screen> Follows steps 1 to 2 on page 16 to display Logging <Logging screen>. Stop logging? Remaining [ 149H42M] [MENU]: Stop [MENU(Tap)]: Return Press and hold the [POWER/MENU switch] <Logging stopped screen> to stop logging. <Logging stopped screen> DATA LOGGER will be displayed.
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To delete Logging Data: Follow steps 1 to 2 on page 16 to display <DATA <DATA LOGGER screen> LOGGER screen>. DATA LOGGER Start Clear Interval 30 sec] Select “Clear” with the [AIR ADJ./▲ switch], Remaining [ 150H 0M] and press and hold the [POWER/MENU switch].
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Changing the Logging Cycle (Interval): <DATA LOGGER screen> Follow steps 1 to 2 on page 16 to display <DATA LOGGER screen>. DATA LOGGER Start Clear Interval 30 sec] Remaining [ 150H 0M] Select “Interval” with the [AIR ADJ./▲ switch], press hold [▲]:Select [MENU]:OK [POWER/MENU switch].
Alarm Level • Functions and Setting: Disable the safety lock to change the Alarm Level. Follow the steps on page 28. Setting the alarm level is very important. Only the safety manager, or WARNING the other authorized personnel, can configure the alarm level setting. Make sure all the setting values are correct when the alarm level has been changed.
Clock Adjustment • Functions and Setting: <MENU screen> Press and hold the [POWER/MENU switch] for approximately one second to display Alarm test <MENU screen>. Data logging Set up Select “Set up” with the [AIR ADJ./▲ switch], [▲]:Select [MENU]:OK and press and hold the [POWER/MENU [MENU(Tap)]:Return switch].
Alarm Mode • Functions and Setting: Disable the safety lock to change the O Alarm Mode. Follow the steps on page 28. WARNING Only the safety manager, or the other authorized personnel, can configure the O2 alarm mode. Set to “Low” (lower-limit alarm) for detecting oxygen deficient.
Volume/Silent • Functions and Setting: Disable the safety lock to change the Volume/Silent. Follow the steps on page 28. Only the safety manager, or the other authorized personnel, can WARNING configure the alarm sound volume. Press the [POWER/MENU switch] for <MENU screen>...
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<VOLUME SETTING screen> will be displayed. Select the item to change with the [AIR <VOLUME SETTING screen> ADJ./▲ switch], and press and hold the [POWER/MENU switch]. VOLUME SETTING Silent Alarm sound Item Content of change Beep The silent mode will stop all the [▲]:Select [MENU]:OK buzzers.
LCD Contrast • Functions and Setting: <MENU screen> Press [POWER/MENU switch] approximately one second to display <MENU Alarm test screen>. Data logging Set up [▲]:Select [MENU]:OK Select “Set up” with the [AIR ADJ./▲ switch], [MENU(Tap)]:Return and press and hold the [POWER/MENU switch]. <SET UP 1/2 screen>...
Display Setting • Functions and Setting: <MENU screen> Press [POWER/MENU switch] <MENU screen> approximately one second to display <MENU Alarm test screen> Data logging Set up Select “Set up” with the [AIR ADJ./▲ switch], [▲]:Select [MENU]:OK and press and hold the [POWER/MENU [MENU(Tap)]:Return switch].
Safety Lock • Functions and Setting: The safety lock is very important. Only the safety manager, or the WARNING other authorized personnel, can disable the safety lock. Configuring the safety lock will prevent to change the following settings. Disable the safety lock to change the setting.
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<Safety lock> Pressing and holding the [POWER/MENU switch] saves the changes. Lock marks are SET UP 1/2 displayed on locked functions. Alarm Clock (Pressing the switch returns to <Gas O2 alarm mode Concentration screen> without saving the Span adjustment changes.) to 2/2 page [▲]:Select [MENU]:OK [MENU(Tap)]:Return...
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“Key” mark approaches to keyhole by pressing the [AIR ADJ./▲ switch] several times. When “key” mark moves close to keyhole, press and hold the [POWER/MENU switch]. <Approaching Key mark> <Key mark comes close to keyhole> [▲]: Select [MENU]: OK [▲]: Select [MENU]: OK [MENU(Tap)]: Return [MENU(Tap)]: Return Press the [AIR ADJ./▲...
・ When the switch or display does not function correctly without displaying error message, reset batteries and turn on the power again. If it still does not work properly, consult your New Cosmos representative. • Notification message...
5. Replacing Consumables Replacing filter element • A tainted or wet filter element needs to be replaced with a new one. • Attach the filter element properly. Otherwise, it may not meet the WARNING waterproof structure. • Securely tighten screws to prevent water from penetrating into the Multi-gas Detector.
Battery Replacement • When the battery level drops, the battery low pre-alarm buzzer will sound (pi…pip… and the alarm lamp on top of the Multi-gas Detector will flicker). It is recommended to replace batteries immediately. Pressing and holding the [AIR ADJ./▲ switch] stops the buzzer. Low Battery Alarm Battery Exhausted <Low battery Screen>...
6. Maintenance Check This Multi-gas Detector is a precision equipment. Maintenance in accordance with the following items is imperative for maintaining performance of the Multi-gas Detector and ensuring safety. In the event of a violation of Safe Operation instructions (see on pages 3-4), such as impact shock from dropping or exposure to water, or improper use as described in Specifications (see on page 37), such as detecting gas concentration exceeding the detection range or use in temperatures and...
Cosmos representative for inspection more than once every six months. ・ To ensure the accuracy of the Multi-gas Detector, contact your New Cosmos representative for a routine inspection more than once a year. The sensor of Multi-gas Detector is warranted for a period of one WARNING year from the date of purchase.
New Cosmos warrants to the original purchaser (Customer) and no other person or entity that the gas detection product supplied by New Cosmos shall be free from defects in materials and workmanship for a period of one (1) year from the date of purchase. This warranty does not apply to consumables, including but not limited to fuses and filters.
*7 Operating temperature is subject to change in the range of surrounding temperature. *8 Hydrogen and Acetylene are not covered by explosion-proof structure. *9 Dust-proof and waterproof structure which satisfies the test of New Cosmos Electric complying with JIS C 0920-2003 Ingress Protection code IP67 in the condition of brand-new Multi-gas Detector.
10. Detection Principle • Diaphragm galvanic cell (oxygen) The sensor consists of a noble metal electrode, a base metal electrode, and an electrolytic solution. A noble metal electrode has contact with the air through the Teflon membrane. Due to the electrical potential difference from the load resistance caused by connecting to both terminals, the following reaction takes place.
11. Glossary : Oxygen S: Hydrogen sulfide COMB: Combustible gas CO: Carbon monoxide Ambient temperature: Atmospheric temperature around the electric instrument to maintain its explosion-proof structure. Operating temperature and humidity range: Atmospheric temperature and humidity around the electric instrument to ensure accuracy and proper operation. Air adjustment: Adjustment of zero point in pure air.
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