13
Set the first point temperature (step 1, e.g. 10 °C) with
“
Pump (+)
” button (
F
) or “
Pump (-)
” button (
G
). Con-
firm the setting by pressing “
OK/Pump
“ button (
E
).
Left area of the display appears the set value (10 °C) and
the right area of the display appears the actual tempera-
ture value measured. The “
Set
” LED (
O
) flashes briefly.
The unit now starts and controls to the set value. When
the temperature has reached the set value and has be-
come constant, the “
Set
” LED (
O
) no longer flashes and
the following display appears. The temperature mea-
sured by the unit appears on the left hand side.
Input the calibration value from the reference measuring
instrument (e.g. 10.2 °C) with “
Pump (+)
” button (
F
) or
“
Pump (-)
” button (
G
).
Confirm the value by pressing the “
OK/Pump
“ button (
E
).
Back to previous screen for input a new value by press-
ing “
Temp
” button (
B
).
Back
OK
The first point calibration is finished now.
Calibration of the other points is performed in the same
way.
Example: 2-point calibration:
Dip the temperature sensor of the reference measuring
instrument into the bath fluid.
Select 2-point calibration in the menu. Press the “
OK/
Pump
“ button (
E
) to start the 2-point calibration.
Interface and output
The device can be operated in “Remote” mode via the RS
232 interface (
10
, see
Fig. 1
) or the USB interface (
11
, see
Fig. 1
) connected to a PC and with the laboratory soft-
ware Labworld
soft
®
.
Note:
Please comply with the system requirements to-
gether with the operating instructions and help section
included with the software.
USB interface:
The Universal Serial Bus (USB) is a serial bus for connect-
ing the device to the PC. Equipped with USB devices can
be connected to a PC during operation (hot plugging).
Connected devices and their properties are automatically
recognized. The USB interface can also be used to update
firmware.
USB device drivers:
First, download the latest driver for
IKA
®
devices with USB
interface from
http://www.ika.com/ika/lws/download/
usb-driver.zip
and install the driver by running the setup
file. Then connect the
IKA
®
device through the USB data
cable to the PC.
The data communication is via a virtual COM port. Con-
figuration, command syntax and commands of the virtual
COM ports are as described in RS 232 interface.
RS 232 interface:
Configuration
- The functions of the interface connections between the
stirrer machine and the automation system are chosen
from the signals specified in EIA standard RS 232 in ac-
cordance with DIN 66 020 Part 1.
- For the electrical characteristics of the interface and the
allocation of signal status, standard RS 232 applies in ac-
cordance with DIN 66 259 Part 1.
- Transmission procedure: asynchronous character trans-
mission in start-stop mode.
- Type of transmission: full duplex.
- Character format: character representation in accordance
with data format in DIN 66 022 for start-stop mode. 1
start bit; 7 character bits; 1 parity bit (even); 1 stop bit.
- Transmission speed: 9600 bit/s.
- Data flow control: none
- Access procedure: data transfer from the stirrer machine to
the computer takes place only at the computer’s request.