| GENERAL FEATURES & SPECIFICATIONS |
一般功能和规格 |
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AR-842A |
AR-852A |
AR-872S |
| TemperatureRange |
-18℃～330℃ |
-18℃～500℃ |
-18℃～1050℃ |
| 测温范围 |
0～626H |
0～932H |
0～1922H |
| Accuracy |
±2%or±2℃ |
±2%or±2℃ |
±2%or±2℃ |
| 测温精确度 |
| ℃/H Selection |
√ |
√ |
√ |
| ℃/H温度单位转换 |
| Distance Spot Ratio |
12:1 |
12:1 |
12:1 |
| 测量距离比率 |
| Data Hold Function |
√ |
√ |
√ |
| 数据保持显示功能 |
| Auto Power Shut Off |
√ |
√ |
√ |
| 自动关机功能 |
| Emissivity |
√ |
√ |
√ |
| 发射率 |
| Backlight Display Selection |
√ |
√ |
√ |
| 背光显示选择功能 |
| Laser Target Pointer Selection |
√ |
√ |
√ |
| 镭射目标显示选择功能 |
| Average And Difference Function |
√ |
√ |
√ |
| 平均值和温差测量功能 |
| Max And Min Function |
√ |
√ |
√ |
| 最大、最小值测量功能 |
| High Low Temperature Alarm Setup |
√ |
√ |
√ |
| 高低温报警设定功能 |
| Data Store/Recall Function |
√ |
√ |
√ |
| 测量数据储存功能（断电记忆） |
| Response Time & Wavelengh |
500ms & (8-14)um |
500ms & (8-14)um |
500ms & (8-14)um |
| 响应时间和响应值长 |
| Repeatability |
±1%or±1℃ |
±1%or±1℃ |
±1%or±1℃ |
| 重复性 |
