11
Appendix
11.1
Operation of the Internal Cooling Unit
®
•
If the CERTOMAT
Tplus is equipped with the optional
cooling unit, you need not care for condensate
produced during cooling operation. Existing
condensate will be evaporated internally in the
cabinet.
•
To avoid damages of the refrigerator an integrated
overheat protection permanently switches off the unit
if the temperature in the incubation room exceeds
+38.5 C.
11.2
Connection of External Equipment
At the rear side of the device the CERTOMAT® Tplus
has a 15-pin Sub-D socket for analog signal outputs
and a collective alarm contact.
11.2.1 Analog Exits (ANALOG OUT)
•
For the external registration of speeds and
temperatures, e. g. with a recorder, the
CERTOMAT® Tplus has analog signal exits (0 ... 10 V).
The conditions are as follows:
Speed:
0 V corresponds to 0 rpm.
10 V corresponds to 400 rpm.
0 V corresponds to 0 °C
Temperature:
10 V corresponds to 100 °C
The moving load at the voltage entries must not be
lower than 10 kΩ.
All manuals and user guides at all-guides.com
11.2.2 Collective Alarm
Via the 15-pin sub-D "ANALOG OUT" socket two
potential-free contacts are available on PIN 7/8/15
which can be used to externally register alarm
situations.
3
2
Fig. 38: Device rear side CERTOMAT® Tplus
1.
Supply entry socket with supply main and shock-
proof plug
2.
15-pin sub-D socket for analog signal outputs
− Pin 1
Signal + / speed
− Pin 9
Gnd / speed
− Pin 2
signal + /temperature
− Pin 10
Gnd / temperature
− Pin 7
collective alarm NO
− Pin 8
collective alarm NC
− Pin 15
collective alarm C
− Pin 3
signal + /temperature 2
− Pin 11
Gnd / temperature 2
3.
Ethernet connector
1
45