User's Guide

POLI User’s Guide

1. Turn on your POLI by pressing and holding the [ /↓] key, and allow the

instrument to boot up fully until the main measurement screen with sensor names

and readings is shown.

Important! Make sure all of the instrument’s sensors have warmed up before performing

the bump test. The instrument will take the time to warm up the sensors prior to enabling

access to bump test menus. You can tell a sensor has warmed up if you see a reading next

to it name on the display. If it has not yet warmed up, you see three dashes (‘--’) next to

it.

2. Install a calibration adapter on the gas inlet at the top of the diffusion version

POLI.

3. Connect the pump version instrument to the T calibration tube and connect it to

the calibration gas.

4. Turn on the standard gas to initiate flow.

5. Press [+/OK] key to start the bump test, or press [ /↓] to quit. While the bump

test is being performed, the readings for each sensor are shown. Once the bump

test completes, pass/fail test results and readings are shown for each sensor.

Important! If one or more sensors fail a bump test, be sure to calibrate those sensors.

6. The bump test is now complete. Press [+/OK] to exit and return to the calibration

menu.

If all of alarms and sensors have passed and no sensor is due for a calibration, the

instrument is now ready for use.

6.2.2 Air (Zero) Calibration

This operation sets the zero point of the sensor calibration curve for clean air. It should be

performed before other calibrations.

Note: If you use a zero air cylinder, you must use the Calibration Adapter (and a T

calibration tube if the instrument has a pump). Using a calibration adapter is not

necessary for calibration in fresh air.

Note: Make sure pressure in the

calibration gas cylinder is

higher than 100 psi when using

a T calibration tube (pumped

models only).