| 品牌 | HAMILTON/哈美顿 | 供货周期 | 现货 |
|---|
VisiPro DO 225
产品介绍
货号：243421
*根有防爆认证的光学溶解氧氧电极
VisiPro DO 225是*的能够用于防爆区域的光学溶解氧电极。
详细介绍
光学测量原理改善了测量的性能，简化了维护的程序。改善性能是相对于传统的电化学（电流法）电极，不受流速的影响，快速启动无需极化时间，维护十分简单。
内置变送器，电极可以直接和过程控制系统通过4~20毫安信号或者数字信号HART相连接。所有相关的数据，包括校准信息，诊断信息等都储存在电极头中简化了校准和维护的程序，附加的无线通讯功能可以使电极直接和你的电脑相连接，简化了实验室校准、设置和维护程序。
为什么选择VisiPro DO Ex？
ATEX/IECEx认证证书稳定可靠的光学测量2线制接线方式简单使用HDM软件进行实验室校准内置变送器，能够和控制系统通过4~20毫安信号和数字HART信号进行通讯简化了校准和维护程序:
坚固的电极体设计容易更换的溶氧帽无线模式易于进行监测、设置和校准电极状态和自诊断功能Specifications
| Measurement Principle | Oxygen dependent luminescence quenching |
| Measuring Range | 4 ppb to 25 ppm (DO) or 0.1 to 600 mbar (pO2) |
| Oxygen Consumption | None |
| Required Flow | None |
| Response Time t98% | < 30 s at 25 °C, from air to nitrogen |
| Temperature Sensor | NTC 22 kOhm |
| Drift at Room Temp. under Constant Conditions | < 1 % per week |
| Configurable Values | DO: mbar; %-sat; %-vol; µg/l; mg/l; ppb/ppm (gas); ppb/ppm (dissolved oxygen); Temperature: °C |
| Autoclavable | No |
| CIP | Yes |
| Steam Sterilizable | Yes, max. temperature 140°C |
| Process Temperature | -20 to 140 °C; the Sensor provides no DO reading above 85 °C |
| Pressure Range | 0 to 12 bar |
| O-ring Material | EPDM (FDA approved) |
| Surface Quality of Steel | Ra < 0.4 µm (N5) |
| Protection Rating | IP 68 |
| Certificate | Yes, with parameter settings and materials used |
| Serial Number | Yes |
| a-length | 120 mm |
| Diameter | 12 mm |
| Process Connection | PG13,5 |
| Electrical Connector | M12 |
| Analog Interface 1 | 4-20 mA for DO, programmable |
| 4 - 20 mA accuracy | < 0.3% current value + 0.05 mA |
| 4 - 20 mA current range | 3.5 to 22 mA |
| Operating Voltage | 18 to 30 VDC |
| Digital HART Interface | HART Version 7.0 |
| Analog Interface | Two wire sink needs to be powered by external power supply |
| Wetted Parts | Stainless steel 1.4435, Silicone (FDA approved), EPDM |
| Electrolyte | None |
| Membrane / Cap | only compatible with H cap; Cap needs to be ordered separay |
| Accuracy at 25 °C | 1 ± 0.05%-vol: 21± 0.2%-vol; 50 ± 0.5%-vol |
| Digital HART Interface | HART Version 7.0 |
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