Test Commands Menu; Measure Menu - testo 0554 3305 Anwendungshinweise

7.3 Test commands Menu

- Reset
The transmitter will start new (the same function as unplugg the power and power
it up again.
- Keypad
In the versions with display and keypad (testo 6743 and testo 6744), the three
operating buttons can be tested. As soon as one of the operating buttons is pressed,
the keypad test shows a red field.
- Display
With testo 6743 and testo 6744 (versions with display), it is possible to activate a test
on the 7 segment display using this function.
- Relay
If the 0554 3302 relay plug is used, a test can be carried out on the relay outputs and
on both LEDs via this menu.
If you only want to test the lower alarm output, click on the selection field Pre-alarm
and then on Set. The yellow LED must then light up - you can measure the pre-alarm
output with a mulitmeter at the relay output - the relay output LS must close (0 Ohm).
If you would like to test both regulating steps, click on Main alarm and then on Set.
Both LEDs (yellow and red) have to light up. Both alarm outputs LS and VS then close
(0 Ohm)

7.4 Measure Menu

- Meas. values:
Wait for approx. 5 seconds until the most up-to-date data from the transmitter is read
in. Three values (rel. humidity, temperature °C and dew point ( in °C) are shown.
- Display value
The value shown on the display and the display unit is shown here.
- AD values
This menu shows the "Original values" of the humidity signal and temperature signal. If
the values are below 9,000 (humidity value) or below 12,000 (temperature), it can be
assumed that the sensor is working properly.
7. Menus 23