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SW-7500

4 IN 1 GAS MONITOR

四合一气体检测仪

中文 ------------------------------------------------------------------------01-20

English ----------------------------------------------------------------------21-40

- 01 -

便携式语音型四合一气体检测仪（以下简称检测仪）是一种

可连续检测泄露气体浓度的安全型设备。采用了先进的集成电路

技术、嵌入式微机控制，优质的进口气体传感器，具有优秀的灵

敏度和出色的重复性；使用点阵式LCD显示器，支持中英文界面

和中英文语音提示，用户可以快速的了解本产品，使用及维护简

单；外壳采用高强度工程塑料，抗振好，强度高，外型高档大气

并具有防尘防水防爆功能。

本检测仪广泛应用于石油、化工、环保、冶金、炼化、燃气、

生化医药、农业、消防、考古等需要安全监测有毒有害，防爆炸

行业和场所。检测仪能有效预测危险气体浓度报警，保证工作人

员的生命安全不受威胁，生产设备不受损失。

本产品设计、制造、检定遵守以下国家标准：

（1）GB3836.1—2010《爆炸性环境第 1 部分：设备通用要求》

（2）GB3836.4—2010《爆炸性环境第 4 部分：由本质安全型

“i”保护的设备》

（3）GB15322.3—2019《便携式可燃气体探测器第 3 部分：

测量范围为（0-100)%LEL 的便携式可燃气体探测器》

（4）JJG693—2011《可燃气体检测报警器的检定规程》

（5）JJG365—2008 电化学氧气测定仪检定规程

（6）JJG695—2003 硫化氢气体检测仪检定规程

（7）JJG915—2008 一氧化碳检测报警器检定规程

1. 产品介绍

- 02 -

1 显示屏

向上键

电源键

向下键

氧气检测口

硫化氢检测口

可燃气检测口

一氧化碳检测口

校准盖安装座

背夹

Type-C USB

喇叭

铭牌贴纸

警示灯

14 15 气泵开关

时间显示

氧气

浓度指示值

硫化氢

浓度指示值

18:58:08 电量指示

氧气

可燃气

%LEL

硫化氢

μmol/mol

一氧化碳

20.9

%VOL

μmol/mol

可燃气体

浓度指示值

一氧化碳

浓度指示值

2.1 结构功能对比图

2.2 主显示界面

2. 结构特征

- 03 -

H2S

气体种类

0~100

μmol/mol

0~100% LEL

0~1000

μmol/mol

1% LEL

1 μmol/mol

20% LEL

10 μmol/mol

50% LEL

35 μmol/mol

50 μmol/mol 150 μmol/mol 1 μmol/mol

0~30% VOL 19.5% VOL 23.5% VOL 0.1% VOL

量程低报警点高报警点分辨率

常规气体检测范围

响应时间

指式方式

工作环境

满电续航

充电规格

防护等级

传感器寿命

传感器原理

＜30秒

显示误差 ≤ ±5%FS

其它参数

LCD 液晶显示实时数据和系统状态，灯光，振动

及真人录音语音（中英文）提示

温度 -10°C ~ 55°C ; 湿度 < 95%RH 结露

约10小时(气泵关)

充电时间约2.5h

工作电压 DC 3.7V（2000mAH锂电池）

Type-C DC 5V 1A

IP54

1年

电化学式和催化燃烧式

重量

外观尺寸

220g

134x66x43mm

3. 技术参数

- 04 -

检测仪在关机状态下，长按键，此时液晶屏显示开机欢

迎页面。指示灯闪亮2秒并机身振动自检，同时可以听到“欢迎

使用智能语音型气体检测仪，正在启动请稍后”的语音提示，并

预览通道信息。

4.1.1 开机

4.1 开关机及充电指示

正在启动

请稍后

开机自检

振动

开机自检

报警灯

4. 设置与操作

请在空气洁净环境开机。

氧气

低报

高报

量程

19.5%VOL

23.5%VOL

30.0%VOL

硫化氢

低报

高报

量程

10μmol/mol

35μmol/mol

100μmol/mol

可燃气

低报

高报

量程

20%LEL

50%LEL

100%LEL

一氧化碳

低报

高报

量程

50μmol/mol

150μmol/mol

1000μmol/mol

- 05 -

在开机完成后，显示正常待机的气体主页面，可以看到实时

气体浓度。按键，可以查看系统状态信息。

在气体显示主页面状态下，长按键，屏幕显示关机确认

界面。

按下键，关机成功。

按下键，取消关机，返回气体检测主页面。

4.1.2 关机

18:58:08

氧气

可燃气

%LEL

硫化氢

μmol/mol

一氧化碳

20.9

%VOL

μmol/mol

电量：

已监测：

日期：

时间：

2h25min

2023.12.01

18:58:08

是否

关机?

- 06 -

当电量不足时，仪器会有“电量过低，请充电”语音提示;

当电量过低时，检测仪会自动关机。请关机充电，当在关机状

态插入USB充电线，屏幕显示充电中及充电示意符号。

4.1.3 充电指示

检测仪菜单共有报警记录、低报设置、高报设置、零点设置、

标定设置、时间设置、背光设置、密码设置、通道信息、语言设

置功能。

在显示气体浓度主页面状态，按下键，进入到菜单选择。

4.2 设置菜单

菜单

报警记录

低报设置

高报设置

菜单

零点设置

标定设置

时间设置

菜单

背光设置

密码设置

通道信息

菜单

语言设置

退出

充电中充电完成

- 07 -

在菜单选择报警记录时，按下键，切换到报警记录界

面，按或键浏览记录，按键进入选项。

4.3 报警记录

在菜单选择低报设置时，按下键，切换到选择低报通道

界面；可以通过或键来选择可燃气体、氧气、一氧化碳、

硫化氢通道；选好需要设置的通道后按下键，进入到低报浓

度设置页面；用户可以根据增加、减少来调节实际需要的报警浓

度，按下键后进入保存确认页面，按下或键选择

是否保存修改值。

4.4 低报设置

菜单

报警记录

低报设置

高报设置

可燃气

通道选择

向上确认向下

可燃气 20%LEL

低报设置

增加确认减少

- 08 -

在菜单选择高报设置时，按下键，切换到选择高报通道

界面；可以通过或键来选择可燃气体、氧气、一氧化碳、

硫化氢通道；选好需要设置的通道后按下键，进入到高报浓

度设置页面；用户可以根据增加、减少来调节实际需要的报警浓

度，按下键后进入保存确认页面，按下或键选择

是否保存修改值。

4.5 高报设置

可燃气

通道选择

向上确认向下

可燃气 50%LEL

高报设置

增加确认减少

是否

保存?

是否

保存?

- 09 -

在菜单选择零点设置时，按下键，输入密码：1111，

切换到零点设置界面，进度条动态推进完成后，生成调零完成

页面，按键返回至菜单页面。此项操作，请在自然通风环

境好的环境操作。

4.6 零点设置

1 1 1 1

输入密码

增加确认减少

调零完成

氧气

完成

可燃气

完成

硫化氢

完成

一氧化碳

完成

- 10 -

标定前准备好标气、限压阀、流量计、气管、螺丝固定好

标定气罩。

在菜单选择标定设置时，按下键，输入密码：1111，

仪器会先自动校准零点，校准完成后按键切换到气体校准

界面，通入指定浓度的四合一标准气体* ，按键进入校准

状态，30秒后进度条推进完成，四合一气体标定OK，生成校

准完成页面。按键返回至菜单页面。没有标准气体，请勿

进行此项操作。

* 四合一标气：氧气18%VOL，一氧化碳100μmol/mol，

硫化氢25μmol/mol，可燃气体50%LEL（甲烷）

4.7 标定设置

警告：非专业人员严禁进行此操作，否则一切后果自行承担！

检测仪在出厂时已经统一进行过标定测试，如果用户想重新进

行标定，请严格按照步骤，先零点设置，再进行重新标定设置。

用户如误操作此设置，请及时联系生产厂家退回重新标定处理。

1 1 1 1

输入密码

增加确认减少

校准完成

氧气

完成

可燃气

完成

硫化氢

完成

一氧化碳

完成

- 11 -

在菜单选择时间设置时，按下键，切换到设置时间界

面；通过按键增加数值，按键减少数值。键确认

切换年，月，日，时，分，秒，最后进行保存。

由于检测仪内部时钟芯片会因为温度、电磁干扰、电池电

量不足等影响时钟误差，建议用户每隔一段时间进行一次时间

设置。

4.8 时间设置

标定示意图

限压阀

流量计

气体检漏仪

标气瓶

时间设置

2022-02-23

18:58:08

增加确认减少

- 12 -

在菜单选择背光设置时，按下键，切换到背光设置界

面；通过按键或按键切换背光设置选项；

“自动”为每按一次按键时都会唤醒背光并重新计时30秒，

时间结束后液晶背光灯熄灭;

“常亮”为当用户需要在光线不足的地方长时间观察气体变

化情况时，可选择常亮功能设置，液晶背光会一直保持常亮。

4.9 背光设置

在菜单选择密码设置时，按下键，切换到密码验证界

面；输入验证密码，按键跳转到密码设置页面；出厂默认

密码为 1 1 1 1。为防止其他人误操作，用户可以重新设置新

密码。

4.10 密码设置

背光设置

自动

增加确认减少

背光设置

常亮

增加确认减少

是否

保存?

- 13 -

注意：请用户妥善保存密码，一旦丢失只能退回厂家重新恢复

出厂设置。

在菜单选择通道信息时，按下键，会依次显示氧气、

硫化氢、可燃气体、一氧化碳四种气体的低浓度报警阀值，高

浓度报警阀值以及最大量程信息；

4.11 通道信息

0 0 0 0

密码设置

增加确认减少

1 1 1 1

输入密码

增加确认减少

氧气

低报

高报

量程

19.5%VOL

23.5%VOL

30.0%VOL

硫化氢

低报

高报

量程

10μmol/mol

35μmol/mol

100μmol/mol

可燃气

低报

高报

量程

20%LEL

50%LEL

100%LEL

一氧化碳

低报

高报

量程

50μmol/mol

150μmol/mol

1000μmol/mol

- 14 -

在菜单选择语言设置时，按下键，会跳转语言设置页

面；通过按键或按键切换语言设置选项；按下键

后进入保存界面选择是否保存。（检测仪支持中英文语言切换，

播放的提示语音和系统设置的语言保持一致）

4.12 语言设置

在菜单选择退出时，按下键，系统退出菜单选择，返

回到显示气体实时浓度主页面。

4.13 退出

语言设置

English

增加确认减少

语言设置

中文

增加确认减少

18:58:08

氧气

可燃气

%LEL

硫化氢

μmol/mol

一氧化碳

20.9

%VOL

μmol/mol

- 15 -

打开检测仪，检测仪自检后，显示屏处于实时显示可燃气体、

氧气、一氧化碳、硫化氢四种浓度的待机状态。显示屏背光关闭

时，按中间键即可再次点亮背光(背光在任意操作后保持30s)。

5.1 实时显示

当检测到可燃气体的浓度高于系统设置的最低报警阀值，检

测仪会语音播报“请注意，可燃气体浓度超标”后并一直模拟警

号报警声，检测仪机身振动及报警灯闪亮；当检测仪监测到可燃

气体的浓度恢复到低于最低报警值时，语音、灯光、振动报警状

态停止。

5.2 可燃气体报警

当检测到氧气的浓度低于系统设置的最低报警阀值，检测仪

会语音播报“请注意，氧气浓度过低”，高于系统设置的最高报

警阀值，检测仪会语音播报“请注意，氧气浓度超标”并一直模

拟警号报警声，检测仪机身振动及报警灯闪亮；当检测仪监测到

氧气的浓度恢复到正常值时，语音、灯光、振动报警状态停止。

备注：正常空气中氧气的浓度为 20.9%，用户可根据实际

需要调整低报阀值和高报阀值。

5.3 氧气报警

当检测到一氧化碳的浓度高于系统设置的最低报警阀值，检

测仪会语音播报“请注意，一氧化碳浓度超标”后并一直模拟警

号报警声，检测仪机身振动及报警灯闪亮；当检测仪监测到一氧

化碳的浓度恢复到低于最低报警值时，语音、灯光、振动报警状

态停止。

5.4 一氧化碳报警

5. 功能使用

- 16 -

当检测到硫化氢的浓度高于系统设置的最低报警阀值，检测

仪会语音播报“请注意，硫化氢浓度超标”后并一直模拟警号报

警声，检测仪机身振动及报警灯闪亮；当检测仪监测到硫化氢的

浓度恢复到低于最低报警值时，语音、灯光、振动报警状态停止。

5.5 硫化氢报警

检测仪触发报警后，当检测报警气体恢复到设置的正常阀值

以内时，检测仪会将当前报警信息保存到检测仪内部存储，并根

据用户设置的低浓度报警阀值、高浓度报警阀值区分为低报、高

报。使用人员可通过菜单栏的报警记录查询。

注：报警语音支持中英文语音报警，和系统语言设置保持一致。

5.6 报警数据保存

22-02-23 08:43:44

氧气

硫化氢

可燃气

一氧化碳

低报

0.0

- 17 -

警告：

1. 检测仪只有在开机后并处于气体检测页面才会触发报警；

2. 请不要在有危害气体监测现场对检测仪进行充电，以免在插

拔过程中的火花引起火灾或者爆炸。

3. 尽量不要在开机状态下对检测仪充电，以免影响充电速度。

1. 检测仪内置大容量锂电池，满电状态下可以连续待机监测使

用10H 以上。当检测仪提示电量不足时请及时充电。

2. 使用Type-C充电线，接入USB 5V电源（电源输出电流不小

于1A）即可给检测仪充电。充满显示：充电完成。

3. 在关机状态下充电是不能打开检测仪的。可以在充电完成后

拔掉充电线，再对检测仪开机进行气体监测操作。

6. 充电功能

电量不足充电完成

- 18 -

1. 防止本机从高处跌落或受剧烈震动。

2. 在高浓度气体存在时，或许检测仪无法正常使用。

3. 请严格按照说明书操作和使用，否则可能导致检测结果不准

或者损坏检测仪。

4. 检测仪不得在含有水蒸气、酸性气体、碱性气体、强氧化性

气体及灰尘过高的环境中使用。

5. 本产品不得在含有腐蚀性体（如氯、含硅气体等）的环境中

存放或使用，也不要在其它苛刻环境，包括过高、过低的温

度、较大的湿度、电磁场以及强烈的日光照射）下使用和储

藏本机。

6. 检测仪表面有污物时，请用干净的软布蘸水轻轻擦拭，不要

使用带腐蚀性的溶剂和硬物擦拭本机表面，否则可能导致检

测仪表面划伤或损坏。

7. 为保证检测精度，本检测仪应定期进行标定，标定周期不得

超过 1 年。

8. 任何超出本说明书叙述的应用或故障请联络我公司寻求解决。

7. 使用注意事项

- 19 -

故障现象可能的故障原因处理方式

电压过低请及时给仪器充电

死机请联系经销商或制造商维修

电路故障请联系经销商或制造商维修

传感器超期请联系经销商或制造商更换

传感器

长期未标定请及时标定

无法开机

对检测气体

没有反应

零点设置失败传感器漂移过多及时标定或更换传感器

显示不准确

电池电量完全耗尽及时充电并重新设置时间

强电磁干扰重新设置时间

传感器漂移进行零点校准

时间显示错误

仪器正常检测界

不归零(氧除外)

传感器故障请联系经销商或制造商更换

传感器

当仪器正常检测

界面显示满量程

8. 常见故障及解决方法

- 20 -

检测仪应储存在环境温度 0°C ~ 40°C、相对湿度不大于

85% 的通风室内。避免阳光直射，且空气中不能含有对检测

仪起腐蚀作用的有害气体或杂质。

请按下列清单认真检查仪器所有附件是否完整。如不完整，

请及时联系经销商或生产厂家。

备注

主机台 1

序号名称单位数量

个

说明书本

布包盒仅旗舰款配铝盒

个

彩盒

Type-C线条 1

8 吸气泵罩子个 1 仅旗舰款配置

9 软管条 1 仅旗舰款配置

5 保修卡张 1

6 标定气罩个 1 含1颗螺丝

10. 装箱清单

9. 储存

- 21 -

Portable voice type 4-in-1 gas monitor (hereinafter referred to as

detector) is a kind of safe equipment that can continuously detect

the concentration of leaking gas. It adopts advanced integrated

circuit technology, embedded microcomputer control, high-quality

imported gas sensor, and has excellent sensitivity and repeatability;

It uses a dot-matrix LCD and supports Chinese and English

interfaces and voice prompt to help users quickly understand the

product; Its housing is made of high-strength engineering plastic,

with good vibration resistance, high strength, simple appearance

and dustproof, waterproof and explosion-proof features.

The monitor is widely used in petroleum, chemical industry,

environmental protection, metallurgy, refining, gas, biochemical

medicine, agriculture, fire protection, archaeology and other safety

monitoring industries and places. The monitor can effectively

predict the dangerous gas's concentration and alarm to ensure that

the life safety of the staff is not threatened, and the production

equipment is not damaged.

The design, manufacture and verification of this product comply

with the following national standards:

(1) GB3836.1—2010 \"Explosive environments - Part 1: General

requirements for equipment\"

(2) GB3836.4—2010 \"Explosive environments - Part 4: Equipment

protected by intrinsically safe 'i' \"

(3) GB15322.3—2019 \"Portable combustible gas detector - Part 3:

Portable combustible gas detector with measurement range

of (0-100)% LEL\"

(4) JJG693—2011 \"Verification Regulations for Combustible Gas

Detection Alarms\"

(5) JJG365—2008 Verification regulation for electrochemical

oxygen detector

(6) JJG695—2003 Verification regulation of hydrogen sulfide gas

detector

(7) JJG915—2008 Verification regulation of carbon monoxide

detection alarm

1. Product Introduction

- 22 -

1 LCD Screen

Turn Up

Power button

Turn Down

Oxygen detection port

Hydrogen sulfide detection port

Combustible gas detection port

Carbon monoxide detection port

Calibration cover mount

Back clip

Type-C USB

Speakers

Stickers

Warning lights

14 15 Air pump switch

Oxygen

Concentration

indication value

Flammable gas

Concentration

indication value

Hydrogen sulfide

Concentration

indication value

Carbon monoxide

Concentration

indication value

18:58:08 Battery indicator

20.9

% VOL

0 % LEL

H2S

μmol/mol

2.1 Comparison

2.2 Main Display

2. Structural Features

Time

- 23 -

H2S

Gas Type

0~100

μmol/mol

0~100% LEL

0~1000

μmol/mol

1% LEL

1 μmol/mol

20% LEL

10 μmol/mol

50% LEL

35 μmol/mol

50 μmol/mol 150 μmol/mol 1 μmol/mol

0~30% VOL 19.5% VOL 23.5% VOL 0.1% VOL

Range Resolution

rate Low Limit High Limit

Conventional gas detection range

Response time

Indication

method

Working

environment

Battery life

Charging

IP class

Sensor life

Sensor principle

<30 seconds

Display erro ≤ ±5%FS

Other Parameters

LCD liquid crystal display real-time data and

system status, light, vibration and real voice

recording (Chinese and English) prompts

temperature -10°C ~ 55°C ;

humidity < 95%RH condensation

About 10h (air pump off)

Charging time About 2.5h

Working

voltage DC 3.7V ( 2000mAh Lithium battery )

Type-C DC 5V 1A

IP54

1 year

electrochemical and catalytic combustion

Weight

Dimension

220g

134x66x43mm

3. Technical Parameters

- 24 -

When the detector is off, long press ，then the welcome

page is displayed on the LCD. The indicator light will shine

for 2 seconds, and the device will vibrate to test the

concentration of a gas. At the same time, you can hear the

voice prompt \"Welcome to use intelligent voice type gas

detector, it is starting, please wait\", and preview the channel

information.

Please start the device in a clean environment.

4.1.1 Turn On

4.1 Turn On, Turn Off, Charging

Starting

Please Wait

Auto Check

Vibration

Auto Check

Lights

4. Setup and Operation

L：

H：

R：

20%LEL

50%LEL

100%LEL

L：

H：

R：

50μmol/mol

150μmol/mol

1000μmol/mol

H2S

L：

H：

R：

10μmol/mol

35μmol/mol

100μmol/mol

L：

H：

R：

19.5%VOL

23.5%VOL

30.0%VOL

- 25 -

18:58:08

20.9

% VOL

% LEL

H2S

μmol/mol

POWER OFF

YES NO

After the boot is completed, the normal gas main surface

can be displayed, and the real-time gas concentration can

be seen. Press to view the system status information.

BAT:

Test:

Date:

Time:

2h25min

2022.02.23

18:58:08

4.1.2 Turn Off

Under the main screen of the gas display, long press ,

the screen will display the shutdown confirmation interface.

Press to power off the machine.

Press cancel the shutdown and return to the main

screen of gas detection.

- 26 -

Charging Charge End

4.1.3 Charging

The menu of detector contain as follow: Alarm Record,

Set Low Alarm, Set High Alarm, Zero Adjust, Calibrate Gas,

Set Time, Set Backlight, Set Password, Channel Info,

Set Language, Exit.

Under the gas concentration page, press the key to

enter the menu selection.

4.2 Settings Menu

Alarm Record

Set L Alarm

Set H Alarm

Zero Adjust

Cali Gas

Set Time

Set Backlight

Set Password

Channel info

Set Language

Exit

When the power is low, the instrument will prompt \"power

is low, please charge\" by voice; When the power is too low,

the detector will automatically shut down. Please insert the

USB charging cable in the shutdown state, and the screen

will show the charging state and charging symbols.

- 27 -

Alarm Record

Set L Alarm

Set H Alarm

4.3 Alarm Record

Under the menu list choose the Set L Alarm, press the

key then you can enter the setting interface; you can select

the channels of combustible gas, oxygen, hydrogen sulfide

and carbon monoxide by and keys; after selecting

the channels you need to set, press the key to enter

the page of setting low alarm concentration; The alarm

concentration can be adjusted according to the and ,

and press key to enter the save and confirmation page,

and select whether to save the modified value by pressing

the or .

4.4 Low Limit Setting

Set L Alarm

Up Enter Down

Ex 20%LEL

Up Enter Down

Select Gas

When selecting alarm record from the menu, press to

switch to the alarm record interface, press or to

browse record, press to enter options.

- 28 -

Save?

YES NO

Under the menu list choose the Set H Alarm, press the

key then you can enter the setting interface; you can select

the channels of combustible gas, oxygen, hydrogen sulfide

and carbon monoxide by and keys; after selecting

the channels you need to set, press the key to enter

the page of setting high alarm concentration; The alarm

concentration can be adjusted according to the and

, and press key to enter the save and confirmation

page, and select whether to save the modified value by

pressing the or .

4.5 High Limit Setting

Save?

YES NO

Set H Alarm

Up Enter Down

Ex 50%LEL

Up Enter Down

Select Gas

- 29 -

4.6 Zero Setting

1 1 1 1

Password

Up Enter Down

Zero Adjust

H2S

When selecting zero setting in the menu, press and

input password: 1111 to switch to the zero setting interface.

After the progress bar is dynamically advanced, the zero

setting completion page will be generated. Press to

return to the menu page. Perform this operation in a

naturally ventilated environment.

- 30 -

Warning: Non professional personnel are strictly prohibited

from carrying out this operation, otherwise all consequences

will be borne by themselves.

The tester has been calibrated uniformly when it is out of

the factory. If the user wants to recalibrate, please follow

the steps strictly, first set the zero point, then re-calibrate

the settings. If the user fails to operate this setting, please

contact the manufacturer back in time for calibration.

4.7 Calibration Settings

1 1 1 1

Password

Up Enter Down

Cali Gas

H2S

Prepare standard gas, pressure limiting valves, flow meters,

gas pipes, and fix calibration air cover with screws.

When selecting calibration settings from the menu, press

and input password: 1111, the instrument will automatically

calibrate the zero first. After the calibration is complete,

press to switch to the gas calibration interface, enter the

four-in-one standard gas* with specified concentration, and

press to enter the calibration state. After 30 seconds, the

progress bar is completed, the four-in-one gas calibration is

OK, and the calibration completion page is generated. Press

to return to the menu page. Do not perform this

operation without standard gas.

* Four in one standard gas: oxygen 18%VOL, carbon

monoxide 100umol/mol, hydrogen sulfide 25umol/mol,

combustible gas 50%LEL(methane).

- 31 -

Under the menu list choose the Set Time, press the key

then you can enter the setting interface. Modify the date by

press or key. Press the key to switch the year,

month, date, hour, minute and second. After modified

press the save is ok.

Please set the time at regular intervals, because the

internal clock chip of will be affected by temperature,

electromagnetic interference and battery power and

cause errors.

4.8 Time Setting

Up Enter Down

Set Time

2022-02-23

18 : 58 : 08

Calibration Diagram

pressure limiting

valves

flow meters

gas detector

gas cylinders

- 32 -

When selecting password Settings from the menu,

press to switch to the password verification interface;

Enter the verification password and press to go to

the password setting page. The default password is

1111. To prevent others from performing operations,

you can reset the new password.

Save?

YES NO

When selecting backlight Settings from the menu, press

to switch to the backlight Settings screen. Switch

backlight setting options by pressing or .

Auto: the light will keep for 30 second;

Normally on: the light will always be working.

4.9 Backlight Settings

Up Enter Down Up Enter Down

Auto

Set Backlight

Normality

Set Backlight

4.10 Password Setting

- 33 -

Attention: please save the password properly. Once lost,

it can only be returned to the manufacturer to resume the

factory settings.

Under the menu list choose the Channel info, press the

key then you can enter the info interface; By pressing

the Up or Down to choose the gas type, will display the

gas name, low alarm, high alarm, detecting range.

4.11 Channel Information

1 1 1 1

Password

Up Enter Down

Set Password

0 0 0 0

Up Enter Down

L：

H：

R：

20%LEL

50%LEL

100%LEL

L：

H：

R：

19.5%VOL

23.5%VOL

30.0%VOL

H2S

L：

H：

R：

10μmol/mol

35μmol/mol

100μmol/mol

L：

H：

R：

50μmol/mol

150μmol/mol

1000μmol/mol

- 34 -

4.12 Language Switch

Up Enter Down

中文

Set Language

Up Enter Down

English

Set Language

Select Exit, press the key, the system exits the menu,

and you can return to the display gas real-time

concentration page.

4.13 Exit

18:58:08

20.9

% VOL

% LEL

H2S

μmol/mol

When selecting language Settings from the menu, press

to jump to the language setting page. Toggle language

Settings by pressing or ; Press to enter the

save interface and select whether to save. (The detector

supports language switching between Chinese and

English, and the prompt voice is consistent with the voice

set by the system.)

- 35 -

Turn on the detector. After the self-test, the display screen

is in standby state, which displays four concentrations of

combustible gas, oxygen, carbon monoxide and hydrogen

sulfide in real time. When the display backlight is turned off,

press the middle button to turn on the backlight again (the

backlight is kept for 30 seconds after any operation).

5.1 Real Display

When the concentration of Ex gas is detected to be higher

than the low alarm value set by the system, the detector will

broadcast the voice \"Please note that the concentration of

EX gas exceeds the standard\" and continue to simulate

the alarm sound, the detector vibrates and its alarm light

shines. When the detector detects that the concentration

of combustible gas is lower than the minimum alarm value,

the voice, light and vibration alarm states will stop.

5.2 Ex Alarm

When the concentration of O2 is detected to be lower than

the low alarm value set by the system, the detector will

broadcast the alarm signal \"Please note that the concentration

of oxygen is too low\", which is higher than the high alarm

threshold set by the system. The detector will broadcast the

alarm signal \"Please note that the concentration of oxygen

exceeds the standard\" and always simulate the alarm sound,

the detector vibrates and its alarm light shines. When the

detector detects that the concentration of oxygen returns to

the normal value, the voice, light and vibration alarm states

will stop.

Note: O2 concentration in normal air is 20.9%. Users can

adjust the value of low and high alarm according to actual

needs.

5.3 O2 Alarm

5. Function Application

- 36 -

22-02-23 08:43:44

H2S

L Alarm

0.0

When the concentration of H2S gas is detected to be higher

than the low alarm value set by the system, the detector will

broadcast the voice \"Please note that the concentration of

H2S gas exceeds the standard\" and continue to simulate

the alarm sound, the detector vibrates and its alarm light

shines. When the detector detects that the concentration

of H2S is lower than the minimum alarm value,the voice,

light and vibration alarm states will stop.

5.5 H2S Alarm

When the concentration of CO gas is detected to be higher

than the low alarm value set by the system, the detector will

broadcast the voice \"Please note that the concentration of

CO gas exceeds the standard\" and continue to simulate the

alarm sound, the detector vibrates and its alarm light shines.

When the detector detects that the concentration of CO is

lower than the minimum alarm value, the voice, light and

vibration alarm states will stop.

5.4 CO Alarm

After the detector triggers the alarm, when the detection

alarm gas restores to the normal threshold set, the detector

will save the current alarm information to the internal storage

of the detector, and according to the user set low concentration alarm threshold, high concentration alarm threshold

can be divided into low and high alarm. The user can search

through the alarm in the menu.

5.6 Alarm Data Storage

- 37 -

Warning：

1. The detector only alarm when it is detecting;

2. Do not charging detectors at the gas monitoring site to

avoid fire or explosion caused by sparks during the

plugging process.

3. Try not to charge the detector on startup, so as not to

affect charging speed.

Note：The alarm voice support Chinese or English, as

same as the language you choose.

1. Large capacity lithium battery is built into the detector,

which can standby for 10H when fully charged. Please

charge in time when the detector indicates that the

battery is low.

2. Use the Type-C 5V,1A cable for charging . the detector

can be charged. Full display, charging is complete.

3.Please do not user the detector when charging. Please

use after it is fully charged

6. Power Charging

Low Battery Charge End

- 38 -

1. Prevent the detector from falling down or being subjected

to severe vibration.

2. In the presence of high concentration gas, the detector

may not be used normally.

3. Please strictly operate and use according to the

instruction manual, otherwise it may cause the test result

to be inaccurate or damage the detector.

4. The detector shall not be used in the environment

containing water vapor, acidic gas, alkaline gas, strong

oxidizing gas and dust.

5. This product should not be stored or used in environments

containing corrosive substances (such as chlorine, silica

gas etc.) or in other harsh environments, including too

high or too low temperature, high humidity, electromagnetic

field and

strong sunlight exposure.

6. If there is dirt on the surface of the instrument after

long-term use, please gently wipe it with clean soft cloth

dipped in water. Do not use corrosive solvents and hard

materials to wipe the surface of the machine. Otherwise,

it may lead to scratches or damage on the surface of the

instrument.

7. In order to ensure the accuracy of detection, the detector

should be calibrated regularly, and the verification period

should not exceed 1 years.

8. Any failure or failure to be described in this manual should

be contacted with our company for settlement.

7. Precautions

- 39 -

Fault Failure cause Operation

Low battery Please get charging

Detector's down Please contact the factory

Circuit fault Please contact the factory

Sensor over life Please contact the

factory to change

Long time no cali Geentstoor calibration

Can not

turn on

No detect

value

The sensor zero

drift too high

Calibrate it or change

sensor Set zero fault

Detecting not

true

Battery power is

exhausted

Please get charging and

resetting time

Strong

electromagnetic Re-setting time

Zero drift Zero calibrate

Time display

wrong

After detection

the value not

back to 0

(except O2 ）

Sensor bad Change new sensor

Detector

display whole

range

8. Common Trouble and Solutions

- 40 -

The detector should be stored in the ventilation room with

ambient temperature 0℃ to 40℃ and humidity <85%.

Avoid direct sunlight, and air can not contain harmful

gases or impurities that are corrosive to the detector.

10. Packing List

9. Storage

Please check carefully whether all accessories of the

instrument are complete according to the following list.

If incomplete, please contact the dealer or manufacturer

in time.

Meter PC 1

No. Name Unit QTY Remark

User Manual PC

Cloth Bag

Color Box

Type-C Line PC 1

5 Calibration Cover PC 1

7 Suction Pump Cover PC 1

including one screw

Aluminum case

(flagship model)

Flagship model only

8 Hose PC 1 Flagship model only

Sndway Technology (Guangdong) Co., LTD.

全国咨询服务热线/ Service Hotline：400-125-6969

深达威科技（广东）股份有限公司

Add: Sndway Science & Technology Industrial Park, 58

Tuanjie Road, Humen 523930, Dongguan, China

地址：东莞市虎门镇虎门团结路58号深达威科技园

电话 / Tel：0769-85265688

网址/ Web：www.sndway.com

邮箱/E-mail：market@sndway.com

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