Question 1

深圳市乐欣电子科技有限公司（百安途）主要做哪些产品？

Accepted Answer

乐欣电子科技（百安途）主营声级计、风速计、光照计、木材水份仪、电池检测仪、内阻仪，以及可燃气体检测仪、一氧化碳检测仪、甲醛检测仪等检测仪器仪表。

Question 2

声级计的 A 计权和 C 计权有什么区别，应该怎么选？

Accepted Answer

A 计权（dBA）对低频衰减较大，接近人耳感知特性，是环境噪声与职业噪声评价的通用计权方式；C 计权（dBC）对低频衰减小，适合机械噪声、冲压设备等低频成分丰富的声源。ET-958、ET-953 支持 A/C 计权一键切换，符合 IEC 61672-1 2 级标准，分辨率 0.1 dB。

Question 3

热式风速仪和叶轮式风速仪怎么选？

Accepted Answer

热式风速仪可检测 0.05~0.3 m/s 微弱气流，分辨率 0.01 m/s，适合洁净室、通风管道与室内空气质量评估；叶轮式结构耐用，测量范围 0.4~35 m/s，适合户外风速、风机性能与暖通出风口检测。ET-975P、ET-975 为热式方案，ET-95 为叶轮方案并内置温度补偿。

Question 4

四合一气体检测仪检测哪四种气体？报警阈值怎么设置？

Accepted Answer

标准四合一检测可燃气体（LEL）、氧气（O₂）、一氧化碳（CO）、硫化氢（H₂S）。常用阈值：可燃气低报 10% LEL、高报 25% LEL；氧气缺氧 19.5% VOL、富氧 23.5% VOL；一氧化碳 25/50 ppm；硫化氢 10/15 ppm。GD-100 支持多级报警阈值设置、声光振动三重报警、IP65 防护、续航 12 小时。

Question 5

针式、感应式、球型木材水分仪有什么区别？

Accepted Answer

针式（电阻式）精度高（±1%）但会留下针孔，适合原材料入库检验，MT-850 测量范围 2%~40%；感应式为无损检测，适合成品家具与地板抽检，ET-971 测量范围 3%~35%；球型探头接触面积大、读数稳定，MT-98 木材测量范围 5%~75%，建筑材料 0.1%~2.4%。室内家具用材含水率建议控制在 8%~12%。

Question 6

蓄电池内阻增大到多少需要更换？

Accepted Answer

判断依据是与电池自身基准值对比：内阻升到出厂基准值 1.5 倍时应重点关注，达到 2 倍时容量通常已降至 80% 以下，建议更换；组内某节偏离平均值 50% 以上也应重点监控。BT-100 采用四线（开尔文）交流注入法，内阻量程 0.01 mΩ~3000 mΩ，电压 0~600 V，可存储 10000 组数据。

Question 7

产品是否支持定制？

Accepted Answer

支持定制。可根据客户需求提供量程精度调整、功能拓展、外观标识、界面语言与报警阈值等 OEM/ODM 定制服务。

Question 8

是否可以提供样品？

Accepted Answer

可以提供样品，欢迎联系我们了解详情。

Question 9

产品的起订量是多少？

Accepted Answer

起订量根据具体产品而定，欢迎咨询获取详细信息。

Question 10

产品是否有质检报告或相关认证？

Accepted Answer

有符合各项产品的证书，可提供出厂校准报告，也可协助代送第三方计量机构出具 CNAS 校准证书。

Comparison Item	BT-100	BT-200	BT-300
Product Type	Battery Internal Resistance Tester	Battery Capacity Tester	Lithium Battery Tester
Measurement Method	AC Injection Method + Four-Wire (Kelvin) Measurement	Constant-current discharge test; automatically calculates battery capacity.	Comprehensive Voltage, Internal Resistance, and Capacity Test
Internal resistance range	0.01 mΩ ~ 3000 mΩ	—	0.01 mΩ ~ 100 mΩ
Voltage Range	0 ~ 600 V	Supports 2V / 6V / 12V batteries	0 ~ 5 V, accuracy ±0.1%
Current and Capacity	—	Discharge current: 0 ~ 100 A. Automatically calculates capacity and performance.	Capacity test 0 ~ 20000 mAh
Compatible Battery	Batteries, UPS, Power Batteries	Telecom base stations, data centers, and power system batteries	18650, 21700, and soft-pack lithium batteries
Display & Operations	2.8-inch TFT Color Touchscreen	7-inch HD touchscreen operation	OLED display with automatic battery type and polarity detection
Data Management	Stores up to 10000 test data sets; supports USB export.	Includes PC host software for remote monitoring and data management	—
Alarms and Charts	Built-in alarm: triggers automatically when threshold is exceeded	Real-time display of voltage, current, and capacity curves	—
Power and Interfaces	—	—	USB-C charging port with built-in lithium battery
Recommended Scenarios	Online inspection of substation DC screen and UPS battery bank	Base Station and Machine Room Battery Capacity Verification and Batch Management	Battery manufacturing, incoming quality inspection, and recycling sorting

Battery Tester

BT-100 Battery Internal Resistance Tester

BT-200 Battery Capacity Tester

BT-300 Lithium Battery Tester

Battery Tester Model Specifications Comparison

Use Cases

Power System

communication base station

New Energy Vehicles

Energy Storage System

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