Mercury calibrator (mercury vapor dosing device) GA-7300 is a small and handy device operating with the conventional permeation source principle.
Ga-7300 enables both single-point and multipoint calibration, selectable from one picogram to 1000 pg with sampling time 5 min. (Upper range of the injection is proportional to the sampling time used by the analyzer). „Zero picogram dose“ effectively supplies zero-air into the analyzer.
Programmable operation modes: bypass, dosing against zero air and dosing with standard addition.
Calibrator conveniently connects to the analyzer with a standard internet cable. It can be connected to the analyzer anytime. While disconnected, it continues operating on its own, in stand-by.
Specifications
| Precision of the “zero” (blank value) | < 0.2 pg Hg |
| Programmable dose (at the analyzer sampling time 1 min) | 1 – 200 pg Hg |
| Programmable dose (at the analyzer sampling time 10 min) | 1 – 2000 pg Hg |
| Mercury vapor permeation source temperature control precision | 0.06 oC |
| Air flow rate used for internal system flushing (adjustable) | 0.1 – 1 L/min |
| Communication with the analyzer | Internet cable |
| Time for the device to get conditioned after the prolonged storage | 6 hours |
| Feeding voltage | 220 VAC, 110 VAC 12 VDC |
| Operation ambient temperature range | 0 – +40oC |
| Consumed power, average | < 15 W |
| Consumed power, maximum (at the start up) | 40 W |
| Dimensions (W*D*H) | 26 * 35 * 8.5 cm |
| Weight | 4 kg |