| GENERAL FEATURES &
SPECIFICATIONS |
一般功能和规格 |
|
| |
|
|
|
| |
AR-842A
|
AR-852A
|
AR-872S
|
| TemperatureRange |
-18℃～330℃
|
-18℃～500℃
|
-18℃～1050℃
|
| 测温范围 |
0～626℉
|
0～932℉
|
0～1922℉
|
| Accuracy |
±2％or±2℃
|
±2％or±2℃
|
±2％or±2℃
|
| 测温精确度 |
| ℃/℉ Selection |
√
|
√
|
√
|
| ℃/℉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 |
√
|
√
|
√
|
| **大、**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 |
