User manual

A511 User Manual, Rev. 1.1 - 11 - 08/2007
Combination of Modes
You can certainly combine measurement methods. Setting Measurement Mode “Meas.” to
“after 2s” and turning “AVG” ON will cause the A511 to power the sensor, warm it up for
1.8 seconds, take 10 readings, display their average, and turn the sensor off again. This cycle
will then repeat after 3 seconds.
Exit and Save the Configuration Menu
To exit the configuration Menu press the “Menu ON” key once. The A511 will go back to the
Analog Measurement Mode. The settings will automatically be saved. The next time you
switch the device ON again you will be asked if you want to restore these settings.
4.3. SDI-12 Address Change Mode
To change the address of an SDI-12 sensor attach the optional cable 800.511.001 to Port 3.
The SDI-12 Address Changer is conforming to the SDI-12 standard, Ver. 1.3. However, the
sensor attached needs to adhere to Adcon’s extended SDI-12 supply voltage specification
(see Section 5 – SDI-12 sensor specification) if you want to A511 to power the sensor.
Caution:
Do not operate with more than one SDI sensor simultaneously, else the Address Change
Mode will not work
Entering SDI-12 Address Change Mode
Switching to the SDI-12 Address Changer Mode is done by pushing the “SDI Mode” key
while being in the Analog Measurement Mode. Be sure that a sensor is connected by means
of the 800.511.001 adapter cable, else an error message will be displayed.
Using the Keypad to toggle between functions and screens
Again, keys have different functionality. Here is what they will do:
• “F1”: Increases the sensor address by one step per push.
(see SDI–12 Ver.1.3 specification for conforming sensor addresses)
• “F2”: Will commit the sensor address you chose to the SDI-12 sensor and return an
acknowledgement of the newly set address.
• “F3”: Decreases the sensor address by one step per push.
(see SDI–12 Ver.1.3 specification for conforming sensor addresses)
• “Meas. Mode”: Pushing this key will end the “SDI-12 Address Change Mode” and
switch the A511 into the Analog Measurement Mode.
• “SDI Mode”: When being in SDI Mode a short push on this key will again send an
address request to the sensor.