| GENERAL FEATURES & SPECIFICATIONS |
一般功能和規(guī)格 |
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AR-842A |
AR-852A |
AR872D |
| TemperatureRange |
-18℃～330℃ |
-18℃～500℃ |
-50℃～1050℃ |
| 測(cè)溫范圍 |
0～626℉ |
0～932℉ |
0～1922℉ |
| Accuracy |
±2%or±2℃ |
±2%or±2℃ |
±2%or±2℃ |
| 測(cè)溫精確度 |
| ℃/℉ Selection |
√ |
√ |
√ |
| ℃/℉溫度單位轉(zhuǎn)換 |
| Distance Spot Ratio |
12:1 |
12:1 |
12:1 |
| 測(cè)量距離比率 |
| Data Hold Function |
√ |
√ |
√ |
| 數(shù)據(jù)保持顯示功能 |
| Auto Power Shut Off |
√ |
√ |
√ |
| 自動(dòng)關(guān)機(jī)功能 |
| Emissivity |
√ |
√ |
√ |
| 發(fā)射率 |
| Backlight Display Selection |
√ |
√ |
√ |
| 背光顯示選擇功能 |
| Laser Target Pointer Selection |
√ |
√ |
√ |
| 鐳射目標(biāo)顯示選擇功能 |
| Average And Difference Function |
√ |
√ |
√ |
| 平均值和溫差測(cè)量功能 |
| Max And Min Function |
√ |
√ |
√ |
| 最大、最小值測(cè)量功能 |
| High Low Temperature Alarm Setup |
√ |
√ |
√ |
| 高低溫報(bào)警設(shè)定功能 |
| Data Store/Recall Function |
√ |
√ |
√ |
| 測(cè)量數(shù)據(jù)儲(chǔ)存功能（斷電記憶） |
| Response Time & Wavelengh |
500ms & (8-14)um |
500ms & (8-14)um |
500ms & (8-14)um |
| 響應(yīng)時(shí)間和響應(yīng)值長(zhǎng) |
| Repeatability |
±1%or±1℃ |
±1%or±1℃ |
±1%or±1℃ |
| 重復(fù)性 |
