The OxyGuard Handy Polaris TGP (Total Gas Pressure) is a hand-held gas pressure meter. It can operate in three modes, one where it acts as a standard Handy Polaris dissolved oxygen (DO) meter, one where it is a total gas pressure meter that shows pressures as percent saturation values and one where it is a total gas pressure meter that shows pressures as volume percentages.
The user can choose which value is shown in large figures in the display. This can, for example, be the percent saturation value for gases other than oxygen.
The instrument incorporates a data logger. Messages on the display, and menu functions, make the Handy Polaris TGP easy to use.
The Handy Polaris TGP is designed for easy use and to give accurate here-and-now measurements of the total dissolved gas pressure. The instrument also has a dissolved oxygen and temperature sensor and can display values of total gas, dissolved oxygen and residual gas, i.e. gas other than oxygen. These can be shown as percent saturation values or as volume percentage values. The Handy Polaris TGP can also be used as a standard Handy Polaris 2 DO meter.
Maintenance is easy. The DO measurement is made using the well-known OxyGuard Handy probe, and the TGP sensor element can be exchanged if necessary.