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