VDL200 detects and validates the connected probe(s) only at startup. It also selects the displayed and recorded measurement parameters automatically based on the type of probe. VDL200 can display and record up to 4 measurement parameters.
When the data logger is starting up, there may be error indications on the screen as the device is connecting to the network and synchronizing with a time server. The error indications will quickly disappear if everything is OK.
| Probe model | Selected measurement parameter(s) |
|---|---|
| HMP110, HMP115 | RH + T |
| HMP110T, HMP115T, TMP115 | T |
| GMP251, GMP252 | CO2 |
After the data logger completes the probe detection successfully it starts normal operation. The connected probe(s) must remain the same until the data logger is turned off again. If a probe is disconnected while the data logger remains powered on, the values of the measurement(s) will be replaced with dashes "---" until the probe is reconnected and can be successfully read again. You can successfully reconnect correctly detected probes to their original probe port without turning off the data logger.