Operation
45
Depending on the operating system used by the connected computer, it may
be necessary to install the USB driver.
3. Install the USB driver on the computer.
4. Switch the circulator on.
The circulator reports to the PC with the ID “STMicroelectronics Virtual
COM Port” as a COM port in the unit manager.
5. Press and hold the two arrow buttons simultaneously.
Remote control mode is activated, the display shows <rOn>. To deactivate,
press the key combination again until the display shows <rOFF>.
6. Start the terminal program on the computer.
7. Use the terminal program to select the COM port of the circulator and
establish a connection.
Remote control via the USB interface is activated. You can now remote
control the circulators using interface commands from the computer.
8.8 Setting the timer
The timer can be used to program the duration of a temperature control
application from 0 to 999 minutes. The setpoint temperature is maintained for
the programmed time. After the set duration has elapsed, the device switches to
standby mode.
The unit is switched on.
1. Press the [Down Arrow] and [OK] keys simultaneously.
The display shows <t O>.
2. Use the arrow keys to set the minutes and confirm with [OK].
The display flashes briefly.
The timer is programmed and active.
The decimal point flashes on the display until the timer starts. The timer starts
when the setpoint temperature is reached and maintained, with a precision of
±0.1°K, for at least 30 seconds. Below 1 minute, the remaining run time is
shown in seconds.
After the set time has elapsed, a double acoustic signal sounds and the device
switches to standby mode.
The setpoint temperature can still be changed until it is reached. The timer
remains active and starts when the new setpoint temperature is reached. If the
setpoint temperature is changed while the timer is running, the timer is
deactivated.
Press the [OK] key to stop the running timer.
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