42280-EU-EN-V4.4-12/11
10
Datalogging
Starting a Datalogging session
The 42280 can automatically store up to 16,000 readings (8000 temperature and 8000 humidity) for
later transfer to PC. Program the controller, as discussed earlier, before Datalogging. If the
Datalogger has not been configured at this point, configure as necessary. If programming is
complete, continue with the next section.
Starting the Datalogger by push-button (Key Mode)
1. Programming mode P2 (Datalogging Start Modes) must be set to KEY (hEy) mode for this
method.
2. When P2 is set to ‘hEy’, press and hold the START-STOP button for 2 seconds.
3. The REC front-panel status light will blink indicating that readings are currently recording at
the rate programmed in parameter P4 (sample rate)
4. To stop recording, press and hold the START-STOP button for at least 2 seconds. The REC
status light will stop blinking.
Starting the Datalogger in Immediate Mode
1. Programming mode P2 (Datalogging Start Modes) must be set to ‘Imm’ mode for this method.
2. When the programming mode is exited, Datalogger automatically begins.
3. The REC front-panel status light will blink indicating that readings are currently recording.
4. To stop recording, press and hold the START-STOP button for at least 2 seconds. The REC
status light will stop blinking.
Starting the Datalogger in Schedule Mode
1. In Schedule Mode the meter begins recording at a specific date and time, as programmed by
the user.
2. Programming mode P2 (Datalogging Start Modes) must be set to ‘SCh’ mode for this method.
3. After setting P2 to ‘SCh’, set the desired time and date in Programming Mode P3 (P3 only
appears in the menu when ‘SCh’ is selected in P2.
4. Datalogging will start at the programmed date and time. Note that the Real Time Clock
(Programming Mode P6) must first be set to the current date and time.
5. When datalogging begins, the REC front-panel status light will blink indicating that readings
are currently recording at the rate programmed in parameter P4 (sample rate)
6. To stop recording, press and hold the START-STOP button for at least 2 seconds. The REC
status light will stop blinking.
Starting the Datalogger in Repeat Mode
In Repeat Mode the meter simply begins datalogging again after readings are downloaded to a
PC. This allows the user to maintain the same programming selections time after time.
Datalogging is indicated by the flashing REC light as described in the other Start Modes above.
To stop recording, press and hold the START-STOP button for at least 2 seconds. The REC
status light will stop blinking.
