| Specifications |
Model 627 |
| Display |
3 1/2 digit liquid crystal display (LCD) with a maximum reading of 1999 |
| Polarity |
Automatic, positive implied, negative polarity indication |
| Zero |
Automatic |
| Low battery indication |
Displayed when the battery voltage drops below the operating level |
| Operating environment |
32 to 105°F (0°C to 50°C) at <75% relative humidity |
| Storage temperature |
-4° to 140°F (-20°C to 60°C), 0 to 80% R.H. with battery removed from meter |
| Accuracy |
Stated accuracy at 23°C (+5°C), <75% relative humidity. |
| Dimensions (HxWxD) |
7.5 x 2.64 x 1.4" (189 x 67 x 35mm) |
| Weight |
7oz. (200g) including battery (approx) |
| Range |
0 to 1000PPM (2000PPM with 5 minute max exposure time) |
| Sensor Calibration |
Factory calibrated on 205ppm |
| Sensor Type |
Electrochemical (specific to CO) |
| Initial Accuracy |
+5% of reading +5PPM |
| Response time |
<70sec to 90% of reading |
| Operating Temperature |
32 to 105 °F |
| Operating relative humidity |
15 to 90%RH, non-condensing |
| Long term drift |
<5% / year (depending on use) |
| Battery life |
200 hours typical (No measurable current draw when in "off" position) |
