SW-7500D
4 IN 1 GAS MONITOR
四合一气体检测仪
中 文 ------------------------------------01-25
English ------------------------------------26-51
- 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;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—2021 《爆炸性环境第 1 部分:设备通用要求》
(2)GB3836.4—2021 《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—2019 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
产品特点:
1. 产品介绍
2.4寸IPS彩屏
内置锂电3000mAh
中文/英文界面显示
中文/英文语音播报
泵吸式检测,内置气泵
可外接气管和多功能采集手柄
400组数据存储
实时数据图形分析
IP54防水防尘等级
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2.1 结构功能对比图
2. 结构特征
1 气体检测口
2 警示灯
3 显示屏
4 电源键
5 静音/返回键
6 向上/开关气泵键
7 菜单/确认键
13 Type-C USB
8 向下键
9 喇叭
10 背夹
11 排气孔
12 铭牌贴纸
1
2 2
3
4
5
6
7
8
9
10
12
11
13
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466 100
µmol/mol µmol/mol
68
%LEL
20.9
%VOL
23/07/20/09:00
一氧化碳
浓度指示值
硫化氢
浓度指示值
声音指示
可燃气体
浓度指示值
氧气
浓度指示值
2.2 柱状图显示状态
2.3 气体读数状态
CO
%VOL 氧气浓度
H 2S Ex O2
S
07:48
30
27
24
21
18
15
12
9
6
3
0
振动指示 23/07/20/09:00
灯光指示
气体类型单位 气体类型
电量指示
日期时间
气体类型指示
气体数据显示
- 04 -
H2S
Ex
CO
气体种类
O2
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
传感器寿命
采样方式
显示屏幕
语言界面
语音播报
时间显示
数据存储
1年
传感器原理 电化学式和催化燃烧式
其它参数
泵吸式
2.4英寸IPS彩屏
响应时间 <30s
示值误差 ±5%FS
中文/英文切换
中文/英文语音
√
最多400组
充电规格
电池规格
Type-C DC5V 1A
充电时长 约4小时
满电续航 约6小时(气泵开)
3.8V 3000mAh锂电池
3. 技术参数
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自检完成后,语音播报“欢迎使用智能语音型气体检
测仪”,仪器进入预热50秒倒计时状态。
开机预热
报警功能
工作温湿度
储存温湿度
防爆标志
IP等级
50秒
声音/灯光/振动三种报警模式
-10°C~55°C;≤95%RH无凝结
自动关背光 30秒
自动关机 5分钟(无任何操作情况下,可手动取消)
-20°C~60°C;≤85%RH
Ex ib IIB T3 Gb
IP54
重量
机身尺寸
318g
174x77x55mm
4.1.1 开机
4.1 开关机及充电指示
4. 设置与操作
在关机状态下,长按 6秒屏幕显示“自检中”。
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4.1.2 关机
长按 3s后屏幕显示“关机倒计时”(如果不需要关
机,可短按 或 键取消关机),倒计时完成后语音
播报“谢谢使用,再见”,然后屏幕熄灭关机。
自检中
一氧化碳传感器
硫化氢传感器
氧气传感器
可燃气体传感器
正常
正常
正常
正常
*长按开机
机器预热中请稍后
45
关机倒计时
08
- 07 -
4.1.3 充电提示
本仪器采用3.8V (3000mAh) 锂电池供电。
开机状态下充电:
屏幕右上角的电池符号由空格到满电循序渐进循环显示。
(注:该状态下无法关机)
关机状态下充电:
屏幕中间显示大电池符号从空格到满电循序渐进循环显示,
充满电后会提示:充电完成(注:该状态下无法开机)
4.2 语音开/关
在气体读数状态下,长按 键2s即可禁止语音播报,
再长按 键即可恢复语音播报。
4.3 气泵暂停采样
在气体读数状态下,短按 或 键进入暂停气泵
采样界面,此时采样气泵关闭,如需继续采样,短按 或
键。
气泵暂停中 ....
如需继续采样,请打开气泵
23/12/08/09:28
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5. 菜单选项
在气体读数状态下,按 键,即可进入配置菜单选
项模式。有九个配置选项:报警记录、气体标定、零点平移、
报警值设置、振动与声光设置、时间日期设置、自动关机设
置、语言设置和恢复出厂设置。
菜单设置
BACK ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
5.1 报警记录查看
在菜单设置状态下,按 和 键选择“报警记录” 选
项,然后按 键进入有四个报警记录选项的菜单:氧气报
警记录、硫化氢报警记录、一氧化碳报警记录、可燃气体报
警记录。需查看其中一种气体报警记录,按 和 键选
择其一,按 键进入查看页面,按 和 键可翻页查
看,按 键返回上一级。每种气体最多可记录100笔最近
的报警记录。
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氧气报警记录
1 23/09/13 07:42 19.1 %VOL
2 23/09/13 07:42 19.1 %VOL
3 23/09/13 07:44 18.8 %VOL
4 23/09/13 07:44 18.9 %VOL
5 23/09/13 07:45 19.0 %VOL
6 23/09/13 07:45 19.1 %VOL
7 23/09/13 07:51 18.9 %VOL
8 23/09/13 07:51 19.1 %VOL
9 23/09/13 07:52 19.0 %VOL
10 23/09/13 07:53 19.1 %VOL
报警记录选项 报警记录查看
按
键
注:在报警记录查看界面长按 键可以删除当前选择气体
类型的全部报警记录。
报警记录
氧气报警记录
硫化氢报警记录
一氧化碳报警记录
可燃气体报警记录
BACK ENTER
5.2 气体标定
应根据仪器使用情况、周围的气体和环境条件,定期使
用已知浓度的标准气体对仪器进行测试。频率最好由公司政
策或当地监管机构确定。如果仪器未能通过测试,或者出现
损坏,建议进行完全校准。最安全的方法是每天使用前进行
一次准确度测试。
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气体标定
标定值设置
氧气标定
三合一标定
BACK ENTER
按
键
菜单设置
BACK ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
5.2.1 标定值设置
此页面下,按 和 键选择需要设置的选项,然后
按 键进入下一级:
进入后是四个选项的菜单:氧气标定值、硫化氢标定值、
一氧化碳标定值和可燃气体标定值。此页面下,按 键和
键选择需要设置的选项,然后按 键进入设置界面:
在菜单设置中,按 键切换至“气体标定”选项,
此时按 键进入有三个选项的菜单:标定值设置、氧气
标定和三合一标定。
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气体标定
标定值设置
氧气标定
三合一标定
BACK ENTER
标定值设置
氧气标定值
硫化氢标定值
一氧化碳标定值
可燃气体标定值
BACK ENTER
按
键
氧气标定值:
此页面下,按 和 键设置需要的数值后,按
键确认并完成,按 键取消设置并返回上一级。
硫化氢标定值:
此页面下,按 和 键设置需要的数值后,按
键确认并完成,按 键取消设置并返回上一级。
一氧化碳标定值:
此页面下,按 和 键设置需要的数值后,按
键确认并完成,按 键取消设置并返回上一级。
可燃气体标定值:
此页面下,按 和 键设置需要的数值后,按
键确认并完成,按 键取消设置并返回上一级。
注:此图仅以一种气体为例,其余3种气体类型操作方法一致。
- 12 -
标定值设置
29.0
BACK ENTER
%VOL
标定值设置
氧气标定值
硫化氢标定值
一氧化碳标定值
可燃气体标定值
BACK ENTER
按
键
5.2.2 氧气标定
在气体标定状态下,按 和 键选择氧气标定,按
键进入输入密码界面,输入密码‘1111’(按键输入操作:
在密码输入界面下,按 和 键设置数字0-9,然后按
键移至下一位,同上一步按 和 键设置数字0-9
如此直至四位数字设置完成),再按 键进入零点标定,
此时等待30s后自动完成校准,并且显示校准情况,若校准
成功,则显示“标气校准完成”,若校准失败,则显示“标定
失败”,最后按 键完成并返回上一级,校准过程按
键取消设置并返回上一级。
- 13 -
BACK ENTER
氧气标定
标定值 20.9
内码值
标定进程
标气校准完成
2812
气体标定
BACK ENTER
标定值设置
氧气标定
三合一标定
按
键
按
键
等待30s后
BACK ENTER
气体标定
请输入密码
1 1 1 1
- 14 -
BACK ENTER
三合一标定
标定值 100
内码值
标定进程
标气校准完成
0007
50
1733
27
0005
CO CH4 H2S 按
键
BACK ENTER
气体标定
请输入密码
1 1 1 1
5.2.3 三合一标定
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。
在选择三合一标定时,按 键,输入密码:1111,
仪器会显示零点标定,再按 键,仪器会自动校准零点,
校准完成后,通入指定浓度的四合一标准气体*,按 键
进入校准状态,30秒后显示标准校准完成,按 键返回
至菜单界面。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)
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。
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按
键
BACK ENTER
菜单设置
请输入密码
1 1 1 1
标定示意图
限压阀
流量计
标气瓶
5.3 零点平移
在菜单设置状态下,选择零点平移,按 键,输入
密码:1111,切换到零点平移界面,进度条动态推进完成
后,仪器自动返回菜单选项状态。此项操作,请在自然通
风环境好的环境下操作。
BACK ENTER
归零进程
0
H2S Ex CO
0 0
零点平移
- 16 -
5.4 报警值设置
在菜单设置状态下,选择“报警值设置”,按 键进入
有四个报警值设置选项的菜单:氧气报警值、硫化氢报警值、
一氧化碳报警值、可燃气体报警值。此页面下,按 和
键选择需要设置的选项,然后按 键进入下一级:
5.4.2 硫化氢报警值设置
5.4.1 氧气报警值
按 键进入设置选项的菜单:低限报警值设置和高
限报警值设置。此页面下,按 和 键选择需要设置
的选项,然后按 键进入下一级:
低限报警值设置(出厂默认19.5%VOL)
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
高限报警值设置(出厂默认23.5%VOL)
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
注意:低限报警值小于高限报警值,一级报警值小于二级报
警值。
按 键进入设置选项的菜单:一级报警值设置和
二级报警值设置。此页面下,按 和 键选择需要设
置的选项,然后按 键进入下一级:
- 17 -
5.4.3 一氧化碳报警值设置
一级报警值设置(出厂默认10μmol/mol)
二级报警值设置(出厂默认35μmol/mol)
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
一级报警值设置(出厂默认50μmol/mol)
二级报警值设置(出厂默认150μmol/mol)
按 键进入设置选项的菜单:一级报警值设置和
二级报警值设置。此页面下,按 和 键选择需要设
置的选项,然后按 键进入下一级:
- 18 -
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
按 键进入设置操作界面,按 和 键设置
想要的数值后按 键确认并返回上一级菜单;不需要
设置,按 键返回上一级。
5.4.4 可燃气体报警值设置
一级报警值设置(出厂默认20%LEL)
二级报警值设置(出厂默认50%LEL)
在菜单设置状态下,选择“振动与声光设置”,按 键
进入有三个报警设置选项的菜单:振动设置、声音设置、灯
光设置。此页面下,按 和 键选择需要设置的选项,
然后按 键进入设置界面:
5.5 振动与声光设置
按 键进入设置选项的菜单:一级报警值设置和
二级报警值设置。此页面下,按 和 键选择需要设
置的选项,然后按 键进入下一级:
- 19 -
设置界面下,按 和 键设置为“开启”或“关闭”,
按 键确认并返回上级菜单;按 键取消设置并返
回上级菜单。
5.5.1 振动设置
设置界面下,按 和 键设置为“开启”或“关闭”,
按 键确认并返回上级菜单;按 键取消设置并返
回上级菜单。
5.5.2 声音设置
设置界面下,按 和 键设置为“开启”或“关闭”,
按 键确认并返回上级菜单;按 键取消设置并返
回上级菜单。
5.5.3 灯光设置
BACK ENTER
振动与声光设置
振动设置
声音设置
灯光设置
菜单设置
BACK ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
按
键
- 20 -
在菜单设置状态下,选择“日期设置”按 键进入有
两个设置选项菜单:日期设置和时间设置,此页面下,按
和 键选择需要设置的选项,然后按 键进入设
置界面:
通过按 键增加数值,按 键减少数值,按 键
切换年月日,最后按 键进行保存。
通过按 键增加数值,按 键减少数值,按 键
切换时分秒,最后按 键进行保存。
时间日期设置
BACK ENTER
日期设置
时间设置
按
键
菜单设置
BACK ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
5.6 日期设置
5.6.1 日期设置
5.6.2 时间设置
- 21 -
在菜单设置状态下,选择“自动关机设置”,按 键进
入设置界面,此节目有五个选项:05分钟、10分钟、20分钟、
30分钟和关闭。按 和 键选择想要的选项后,按
键确认并完成设置;按 键取消设置并返回上级菜单。
在菜单设置状态下,选择“语言设置”,按 键进入设
置界面,按 和 键选择“中文”或“ENGLISH”选项后,
按 键确认并完成设置;按 键取消设置并返回上级
菜单。(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)
5.7 自动关机设置
自动关机设置
BACK ENTER
05 分钟
10 分钟
20 分钟
30 分钟
关闭
菜单设置
BACK ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
按
键
5.8 语言设置
- 22 -
在菜单设置状态下,选择“恢复出厂设置”,按 键进
入设置界面;再按 键确认恢复出厂设置;按 键取
消设置。
5.9 恢复出厂设置
语言设置
BACK ENTER
中文
ENGLISH
按
键
菜单设置
ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
BACK
菜单设置
BACK ENTER
报警记录
气体标定
零点平移
报警值设置
振动与声光设置
时间日期设置
自动关机设置
语言设置
恢复出厂设置
BACK ENTER
恢复出厂设置
您确定吗?
按
键
- 23 -
1. 防止本机从高处跌落或受剧烈振动。
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。
6. 使用注意事项
- 24 -
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
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
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
7. 常见故障及解决方法
- 25 -
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。
主机 台 1
序号 名称 单位 数量 备注
1
2
3
4
5
个
说明书 本
1
布包盒
1
个
彩盒
Type-C线 条 1
1
6 保修卡 张 1
软管 根 1
旗舰款配PP盒
7
8 多功能采集手柄 个 1 仅旗舰款配
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。
8. 储存
9. 装箱清单
- 26 -
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;
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.
1. Product Introduction
The design, manufacture and verification of this product comply
with the following national standards:
(1) GB3836.1—2021 \"Explosive environments - Part 1: General
requirements for equipment\"
(2) GB3836.4—2021 \"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—2019 Verification regulation of hydrogen sulfide gas
detector
(7) JJG915—2008 Verification regulation of carbon monoxide
detection alarm
- 27 -
Product Features:
2.1 Structure and Functions
2. Structural Features
1 Gas detection port
2 Warning light
3 LCD
4 Power key
5 Voice/Return key
6 Up/On/Off air pump key
7 Menu/Confirm key
13 Type-C USB
8 Down key
9 Loudspeaker
10 Back clamp
11 Vent hole
12 Nameplate sticker
2.4'' IPS color screen
Built-in Li-ion 3000mAh
Chinese/English interface
Chinese/English voice broadcast
Pump detection, built-in air pump
Connect the external gas pipe and multi-function
detection handle
400 sets of data storage
Real-time data graph analysis
IP54
- 28 -
1
2 2
3
4
5
6
7
8
9
10
12
11
13
- 29 -
CO
%VOL
H 2S Ex O2
S
07:48
30
27
24
21
18
15
12
9
6
3
0
23/07/20/09:00
O2
466 100
µmol/mol µmol/mol
68
%LEL
20.9
%VOL
23/07/20/09:00
CO
concentration
H2S
concentration
Voice
indication
Combustible
gas
concentration
O2
concentration
2.2 Bar Chart Display
2.3 Gas Reading State
Vibration
indication
Light indication
Gas unit Gas type
Battery level
Date/Time
Gas type
indication
Gas data
display
- 30 -
H2S
Ex
CO
Gas Type
O2
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 Low Alarm
Value
Max Alarm
Value
Conventional Gas Detection Range
1 year
Electrochemical/Catalytic combustion
Other Specifications
Air pump
2.4'' IPS color LCD
<30s
±5%FS
Chinese/ English
Chinese/ English
√
400 units
Type-C DC5V 1A
About 4h
Sensor Life
Sampling Method
Screen
Language
Voice Bbroadcast
Time Display
Memory
Sensor Principle
Response Time
Reading Error
Charging Specification
Battery
Charging Time
Battery Life About 6h (air bump on)
3.8V 3000mAh Li-ion
3. Specifications
- 31 -
After the self-checking is completed, the instrument will
announce \"Welcome to use Intelligent voice Gas detector\",
and enter preheat 50 seconds countdown state.
Alarm
Working Temperature/
Humidity
Storage Temperature/
Humidity
Explosion-proof Grade
IP Grade
Sound/Light/Vibration
Startup preheat 50s
-10°C~55°C;≤95%RH no condensing
Auto Backlight-off 30s
Auto-off 5 minutes (changeable)
-20°C~60°C;≤85%RH
Ex ib IIB T3 Gb
IP54
Weight
Dimension
318g
174x77x55mm
4.1.1 Turn On
4.1 Turn On/Off, Charging Indication
4. Setting & Operation
In off state, long press for 6s, the screen will display
“Self-checking”.
- 32 -
Shutdown
Place the instrument in a
place with fresh air
Press【▲】or【▼】to
cancel the shutdown
08
Preheating
Please wait
45
4.1.2 Turn Off
Long pressing for 3s, the screen will display“Shutdown”
(If user do not need to shut down, please short press
or key to cancel the shutdown). After the countdown
is completed, the device will announce \"Thank you for
using bye\", and then the screen will shut down.
Self-checking
CO Sensor
H2S Sensor
O2 Sensor
CH4 Sensor
Normal
Normal
Normal
Normal
*Long press to power on
- 33 -
4.1.3 Charging Indication
The instrument is powered by 3.8V (3000mAh) lithium
battery.
Charging at on state:
The battery symbol in the upper right corner of the screen
is shown below (Note: It cannot be shut down in this state).
Charging at off state:
The screen is displayed as follows. After full charging, it will
prompt: Complete charging (Note: It cannot be started in
this state)
4.2 Sound On/Off
In the gas reading state, long press to for 2s to turn
off the sound, and long press to turn on the sound.
4.3 Air Pump Suspends Sampling
In the gas reading state, short press or to enter
the interface of suspending air pump sampling. At this
time, the sampling air pump is closed. If user need to
continue sampling, short press or short.
Air pump suspended..
To continue sampling
press【▲】or【▼】to
turn on the air pump
23/12/08/09:28
- 34 -
5. Menu Setting
In the gas reading state, press to enter the menu
option mode. There are nine options: Alarm recording,
Gas calibration, Zero shift, Alarm value setting, Vibration
and sound&light setting, Time and date setting, Auto-off
setting, Language setting and Factory reset.
BACK ENTER
Alarm record
Calibration
Zero offset
Alarm limit
Alarm setting
Date and time
Auto off
Language
Factory reset
MENU
5.1 Alarm Records Viewing
In the menu setting state, press and to select the
\"Alarm records\" option, and then press to enter the
menu with four alarm record options: O2 alarm record,
H2S alarm record, CO alarm record, combustible gas alarm
record. To view the alarm records of one gas, press
and to select them; Press to enter the viewing
page; Press and to turn pages; Press key to
return to the previous page. Up to 100 recent alarm
records can be recorded for each gas.
- 35 -
10 23/09/13 07:53 19.1 %VOL
O2 Record
1 23/09/13 07:42 19.1 %VOL
2 23/09/13 07:42 19.1 %VOL
3 23/09/13 07:44 18.8 %VOL
4 23/09/13 07:44 18.9 %VOL
5 23/09/13 07:45 19.0 %VOL
6 23/09/13 07:45 19.1 %VOL
7 23/09/13 07:51 18.9 %VOL
8 23/09/13 07:51 19.1 %VOL
9 23/09/13 07:52 19.0 %VOL
Alarm records options Alarm record viewing
Press
key
Note: Long press in the alarm record viewing interface
to delete all alarm records of the currently selected gas type.
O2 alarm record
H2S alarm record
CO alarm record
Ex alarm record
BACK ENTER
Alarm Record
5.2 Gas Calibration
The instrument should be tested periodically with standard
gases of known concentrations, depending on the use of
the instrument, surrounding gases and environmental
conditions. The frequency is best determined by the
company or local regulatory authority. If the instrument
fails the test or is damaged, a full calibration is
recommended. The safest way is to test the accuracy once
a day before use.
- 36 -
Calibration
Span settings
O2 calibration
Three in mult Calibration
BACK ENTER
Press
key
BACK ENTER
Alarm record
Calibration
Zero offset
Alarm limit
Alarm setting
Date and time
Auto off
Language
Factory reset
MENU
5.2.1 Calibration Value Setting
Under this page, press and to select the option to
be set, and then press to enter the next page:
There are four options: O2 calibration value, H2S calibration
value, CO calibration value and combustible gas calibration
value. On this page, press and to select the options
to be set, and then press to enter the setting page:
In the menu setting, press to switch to the \"Gas
Calibration\" option, then press to enter the menu with
three options: Calibration value setting, O2 calibration and
3-in-1 calibration.
- 37 -
Calibration
Span settings
O2 calibration
Three in mult Calibration
BACK ENTER BACK ENTER
Span Setting
O2 span value
H2S span value
CO span value
Press Ex span value
key
O2 calibration value:
On this page, press and to set the required value;
Press to confirm and complete; Press to cancel
the setting and return to the previous page.
H2S calibration value:
On this page, press and to set the required value;
Press to confirm and complete; Press to cancel
the setting and return to the previous page.
CO calibration value :
On this page, press and to set the required value;
Press to confirm and complete; Press to cancel
the setting and return to the previous page.
Combustible gas calibration value:
On this page, press and to set the required value;
Press to confirm and complete; Press to cancel
the setting and return to the previous page.
- 38 -
BACK ENTER
Span Setting
O2 span value
H2S span value
CO span value
Ex span value
Note: This figure only takes one gas as an example, and
the operation method of the other 3 gases is the same.
Span Setting
29.0
BACK ENTER
%VOL
Press
key
5.2.2 O2 Calibration
In the gas calibration state, press and to select O2
calibration; Press to enter the password input interface
and enter password 1111, (Operation: in the password
input interface, press and to set the first digit from
0-9, and then press to move to the next digit until the
four digits setting is completed); Then press to enter
the zero calibration. After 30s, the calibration will automatically complete, and the calibration result will be displayed.
If the calibration is successful, \"Gas Calibration Complete\"
is displayed. If calibration fails, \"Gas Calibration failed\" is
displayed. Finally, press to complete the operation
and return to the previous page. Press during calibration to cancel settings and return to the previous
page.
- 39 -
Calibration
Span settings
O2 calibration
Three in mult Calibration
BACK ENTER
BACK ENTER
O2 Span Value
SPAN: 20.9
ADC:
Calibration process
Gas Calibration Complete
2812
Press
key
Press
key
After waiting
for 30s
BACK ENTER
Calibration
Please Enter
PassWord
1 1 1 1
5.2.3 3 In 1 Calibration
Before calibration, please prepare the standard gas,
pressure limiting valve, flow meter, gas pipe, screw, and fix
the calibration gas hood.
- 40 -
BACK ENTER
Three in one calibration
SPAN: 100
ADC:
Calibration process
Gas Calibration Complete
0007
50
1733
27
0005 CO CH4 H2S Press
key
BACK ENTER
Calibration
Please Enter
PassWord
1 1 1 1
When selecting 3-in-1 calibration, press and enter
password: 1111, the instrument will display zero calibration.
Press again, the instrument will automatically calibrate
the zero point. After the calibration is completed, inject
the specified concentration of 4-in-1 standard gas *. Press
to enter the calibration state, and the calibration will
be completed after 30 seconds. Press to return to the
menu page. Do not perform this operation without
standard gas.
* 4-in-1 standard gas: O2 18%VOL, CO 100μmol/mol,
H2S 25μmol/mol, combustible gas 50%LEL (methane)
Warning: Non-professional personnel are strictly
prohibited to perform this operation, otherwise the
consequences are their own!
The detector has been unified calibration test when leaving
the factory, if user want to re-calibrate, please strictly
follow the steps, first set zero, and then re-calibrate the
setting. If the user misoperates this setting, please contact
the manufacturer in time to return for re-calibration.
- 41 -
Press
key
Calibration diagram
Pressure limiting
valve
Flow meter
Standard
gas bottle
5.3 Zero Shift
In the menu setting state, select zero shift. Press and
enter password 1111 to switch to the zero shift page.
When the progress bar is completed dynamiccaly, the
instrument automatically returns to the menu options.
Please perform this operation in a well-ventilated
environment.
BACK ENTER
Zero Process
0
H2S Ex CO
0 0
Zero Offset
BACK ENTER
MENU
Please Enter
PassWord
1 1 1 1
- 42 -
5.4 Alarm Value Setting
In the menu setting state, select \"Alarm value setting\" and
press to enter the menu with four alarm value setting
options: O2 alarm value, H2S alarm value, CO alarm value,
combustible gas alarm value. Under this page, press
and to select the option to be set, and then press
to go to the next page.
5.4.2 H2S Alarm Value Setting
5.4.1 O2 Alarm Value
Press to enter the menu for setting options: low alarm
value setting and high alarm value setting. Under this
page, press and to select the option to be set,
then press to enter the next page:
Low alarm value setting(default 19.5%VOL)
High alarm value setting(default 23.5%VOL)
Note: the Min alarm value is less than the Max alarm value,
and the first alarm value is less than the second alarm value.
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the menu for setting options: Level 1
alarm value setting and Level 2 alarm value setting.
Under this page, press and to select the option
to be set, and then press to enter the next page:
- 43 -
5.4.3 CO Alarm Value Setting
Level 1 alarm value setting(default 10μmol/mol)
Level 2 alarm value setting(default 35μmol/mol)
Level 1 alarm value setting(default 50μmol/mol)
Level 2 alarm value setting(default 150μmol/mol)
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the menu for setting options: Level 1
alarm value setting and Level 2 alarm value setting.
Under this page, press and to select the option
to be set, and then press to enter the next page:
- 44 -
5.4.4 Combustible Gas Alarm Value Setting
In the menu setting state, select \"Vibration and sound &
light setting\", press to enter the menu with three
alarm setting options: vibration setting, sound setting,
light setting. On this page, press and to select
the options to be set, and then press to enter the
setting page:
5.5 Vibration and Sound&Light Setting
Level 1 alarm value setting(default 20%LEL)
Level 2 alarm value setting(default 50%LEL)
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the setting operation page. Press
and to set the desired value, then press to
confirm and return to the previous menu. If no set is
needed, press to return to the previous page.
Press to enter the menu for setting options: Level 1
alarm value setting and Level 2 alarm value setting.
Under this page, press and to select the option
to be set, and then press to enter the next page:
- 45 -
Under the setting page, press and to set \"On\" or
\"Off\", press to confirm and return to the previous
menu; Press to cancel the setting and return to the
previous menu.
5.5.1 Vibration Setting
5.5.2 Sound Setting
5.5.3 Light Setting
BACK ENTER
Alarm Setting
Vibration setting
Sound setting
Lighting setting
BACK ENTER
MENU
Alarm record
Calibration
Zero offset
Alarm limit
Alarm setting
Date and time
Auto off
Language
Factory reset
Press
key
Under the setting page, press and to set \"On\" or
\"Off\", press to confirm and return to the previous
menu; Press to cancel the setting and return to the
previous menu.
Under the setting page, press and to set \"On\" or
\"Off\", press to confirm and return to the previous
menu; Press to cancel the setting and return to the
previous menu.
- 46 -
In the menu setting state, select \"Date setting\" and press
to enter the menu with two settings options: date
setting and time setting. On this page, press and
to select the options to be set, and then press to
enter the setting page.
Press to increase the value, press to reduce the
value, press to switch the year, month and date, and
finally press to save.
Press to increase the value, press to reduce the
value, press to switch the hour, minute and second,
and finally press to save.
BACK ENTER
Date And Time
Date setting
Time setting
Press
key
BACK ENTER
MENU
Alarm record
Calibration
Zero offset
Alarm limit
Alarm setting
Date and time
Auto off
Language
Factory reset
5.6 Date Setting
5.6.1 Date Setting
5.6.2 Time Setting
- 47 -
In the menu setting state, select \"Auto-off setting\" and
press to enter the setting page. There are five options:
05 minutes, 10 minutes, 20 minutes, 30 minutes, and off.
Press and to select the desired option, press
to confirm and complete the setting; Press to cancel
the setting and return to the previous menu.
In the menu setting state, select \"Language setting\" and
press to enter the setting page. Press and
to select \"Chinese\" or \"ENGLISH\" option, then press
to confirm and complete the setting. Press to cancel
the setting and return to the previous menu.
(The detector supports English and Chinese language
switching, and the voice prompt is consistent with the
language set by the user)
5.7 Auto-off Setting
BACK ENTER
Auto off
05 mins
10 mins
20 mins
30 mins
OFF
BACK ENTER
MENU
Alarm record
Calibration
Zero offset
Alarm limit
Alarm setting
Date and time
Auto off
Language
Factory reset
Press
key
5.8 Language Setting




