| 详细介绍：
Z900硫化氢检测仪 美国ESC公司 Z-900硫化氢检测仪
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Z-900是一款手持式仪器，可测量空气中0-200PPM的硫化氢气体，分辨率为0.1PPM。仪器带有LCD显示屏，电池电量低显示，和声音报警（可在传感范围内任意设置）。LCD显示屏每10秒显示一次当前的硫化氢浓度（PPM）。可在任意时刻查看峰值、STEL(15分钟平均值）和TWA(8小时平均值）。
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用可选的数据记录功能，仪器可存储每一次使用的所有暴露点（最高5次测量）。对每个系列的暴露点有一个相应的数据和时间标志。所有的记录文件可以方便地上传到装有仪器配套的终端软件或微软Windows操作系统的计算机。
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工作原理
仪器使用一个4电极型电化学传感器，包括一个工作电极和一个活性辅助电极。辅助电极发出的信号用于温度补偿，可增强整个传感器的选择性。传感器响应值和空气中的硫化氢浓度成正比。
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满足OSHA精度要求
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可选择高、低两种量程传感器
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LED显示电池状态
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计算STEL和TWA
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可选择高、低两种量程传感器
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技术参数
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传感器
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电化学
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典型量程
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0-200 ppm
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最大量程
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500 ppm
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分辨率
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0.1 ppm
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响应时间
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<30 秒
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长期输出漂移
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<2% 信号损失/月
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工作温度
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-40-50℃
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相对湿度
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15-90% ,无凝露
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尺寸
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120×63.5×38mm
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重量
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170g
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电源
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9V碱性电池或可选AC适配器
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Z900 hydrogen sulfide detector America ESC Z-900hydrogen sulfide detector
Z-900 is a portable instrument, which can hydrogen sulfide gas 0-200PPM measurements in air, the resolution is 0.1PPM. Instrument with LCD display screen, the battery power is low, and the voice alarm(can be set arbitrarily in the sensing range). LCD display screen every 10 seconds to show a currentconcentration of hydrogen sulfide (PPM). At any time, thepeak STEL (15 min average value) and TWA (8 houraverage).
Data recording function is optional, the instrument can bestored for each time the use of all exposed point(maximum 5 measurements). There is a correspondingdata and time stamps for exposure point of each series.File all can easily upload to the terminal software isinstrument or Microsoft Windows operating system of the computer.
Working principle
The instrument uses a 4 electrode electrochemicalsensor, including a working electrode and an activeauxiliary electrode. Signal emitted by the auxiliary electrode used for temperature compensation, can enhance the selectivity of the sensor. The sensorresponse to hydrogen sulfide concentration in the air andis proportional to the.
Meet the OSHA requirements of precision
Choice of high, low two range sensors
LED display battery status
The calculation of STEL and TWA
Choice of high, low two range sensors
Technical parameters
Electrochemical sensors
The typical range of 0-200 ppm
The maximum range of 500 ppm
Resolution 0.1 ppm
The response time of <30 seconds
The long-term output drift signal loss for <2% / month
Working temperature: -40-50 ℃
Relative humidity 15-90%, without dew
Size 120 x 63.5 x 38mm
Weight 170g
Power supply 9V alkaline battery or optional AC adapter
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