USER MANUAL
TYPE ML-2012/13
Manufacturers of low power instruments
page 25
So, the entry of an alarm state is NOT affected by a hysteresis. Hysteresis is only used for switching back
to the normal mode. The amount of hysteresis has an effect on the “sensibility” of the alarming.
It is strongly advised to use a certain amount of hysteresis to prevent from multiple alarming warnings.
The amount of hysteresis is determined by experience and information from the sensor.
4.10 Firmware Upgrade
The ML-2012/13 is equipped with a boot loader, which enables the firmware upgrade feature.
Firmware upgrading allows a user to overwrite the internal firmware of the data logger with a (newer)
updated version of the firmware. Firmware upgrading can be done by using:
-
USB connection
-
Wireless via GPRS
-
Via Comport
4.10.1
When to use Firmware upgrades
Normally, a user never uses this feature, as long as he is satisfied with the performance of the system.
In time however, the need for additional features may arise. For example, a new serial sensor is
introduced on the market and a customer wants to connect this sensor to the ML-2012/13. When YDOC
has extended the firmware to support that sensor, a new version of the firmware is released. After the
user has performed the firmware upgrade, his “old” ML-2012/13, now supports the new sensor. Normally,
when the system is running fine, and no additional requests exists, we recommend NOT to perform a
firmware-upgrade.
4.10.2
Firmware upgrade procedure
How to perform a firmware upgrade:
-
First download the latest version of the firmware from your YDOC-Dealer.
-
Use the menu and select the option “Maintenance”.
-
Follow instructions from the menu.
-
Use “Y-Modem protocol” to send the new firmware to the data logger.
-
When these steps are completed, the new firmware is active.