TAG 4 is a fully automatic closed cup flash-point tester which, in its Standard Version, covers a measuring range of 0 to +110 °C.

A Low Temperature Version is available for lower flash-points, extending the operating span down to approx. -30 °C.

The instrument uses solid state cooling elements. This avoids any external cooling and messy tubing.

The result is a compact design with a bench space of 23 by 47 cm - a serious consideration when the TAG 4 shall be placed in a fume hood. Only the Low Temperature Option needs a small cooling circulator.

TAG 4 is easy to operate:

Shift the patented multi-function-head - ONE TWIST with one hand in its operating position and all connections are made: assembly of igniter, temperature- and flash-point indicator.

A touch key panel and a large LC-display allow comfortable setting of the estimated flash-point, selection of the test program, indicates whether the flash-point is valid and shows error messages (e.g. igniter failure).

Temperature indication, choice in either °C or °F.

Automatic barometric pressure correction of the measured flash-point.

Strike a key to make the choice between the:

- ASTM Standard Program
- Search Mode
  (to find the approximate flash-point of unknown samples faster)
- Rapid Heating Mode
  (for samples with a high flash-point)
- IP Equilibrium Method
- USER Definable Program
  in order to customize your very particular test procedure.

To check the proper function of the temperature probe, a Probe Verification Program (in conjunction with a special test lid and a certified thermometer) can be applied.

TAG 4 is supplied with 2 igniter systems:

Gas flame with automatic re-lighting and shutoff in case of repeated malfunction and an electrical igniter with a permanent check and control of its electrical values. This ensures a better reproducibility and a longer life. Further, this control signals when the igniter is to be changed, possibly due to excessive aging or damage.

There are two RS232 interfaces:
one for direct connection of a measurement printer and a second one for bi-directional PC connection, as requirement for the most advantageous use of the FPPnet software, which allows remote control of the TAG 4 and the storage of all test.

Additional safety features are:
special sensor monitors, whether there is a flame outside the test cup (e.g. samples with no conventional flash-point due to flame inhibiting components), and automatic shut off in case of excessive sample heating.

Flash-Point TAG Test Equipment

to be composed of:

- Flash-Point Tester - TAG 4 (air cooled or liquid cooled)
- Circulation Cooler
- Hose-Set