Thermo Scientific 3960, Руководство по эксплуатации и техническому обслуживанию

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All incubator models can be purchased with the RS485 communications
option (190523). This option allows the incubator to be directly connected
to a Model 1535 alarm system without the use of a communications
module. A junction box is provided with each RS485 option. Refer to
Figure 6-2 for wiring details. Figure 6-3 shows the location of the RS485
connector on the back of the incubator.
To allow the incubator and the 1535 to communicate, an address must be
allocated on the 1535. Refer to Section 5 of the 1535 operating manual.
The same address number must be assigned to the incubator. Refer to
Section 3 of this manual.
Warning The electronics section contains hazardous voltages. Only
qualified electrical service personnel should access this area.
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The analog output board is an option (190512, 190543, 190544) that
allows the incubator to output analog signals representing the air
temperature of the incubator interior. There are three different analog
output board options available: 0-1V, 0-5V or 4-20mA signals. Refer to
Table 6-1 for output specifications of the three boards.
Table 6-1. Analog Output Board Specifications
Negative display readings will output 0V. The outputs do not have isolated grounds.
6-2 29 cu ft Environmental Chamber Thermo Scientific
Section 6
Factory Installed Options
Connect the RS485
Interface
Figure 6-2. Wiring Details
Connect the Analog
Output Boards
190512 4-20 mA
Output Scaling
4-20mA Equals
190544 0-1V
Output Scaling
0-1 V Equals
190543 0-5V
Output Scaling
0-5V Equals
Temperature 0.0-100.0 °C 0.0-100.0 °C 0.0-100.0 °C
CO2 0.0-100.0 %CO2 0-100.0 %CO2 0-100.0 %CO2