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Thermo Scientific
Connect the Analog Output Boards
The analog output board is an option (190512, 190543, 190544) that allows the
environmental chamber to output analog signals representing the air temperature of the
environmental chamber interior. There are three different analog output board options
available: 0-1V, 0-5V or 4-20mA signals.
Refer to Table 5-1 for output specifications of the three boards.
Contains parts and assemblies susceptible to damage by Electrostatic Discharge
(ESD).
Connect the Analog Output Boards (cont.)
190512 4-20 mA
Output Scaling
4-20 mA Equals
Temperature
0.0-100.0 °C
CO
0.0-100.0%°CO
2
Table 5-1 Analog Output Board Specifications
Negative display readings will output 0V. The outputs do not have isolated grounds.
To wire in the analog output board, a shielded 22 gauge, 3-conductor wire, Part # 73041,
is recommended.
The electronics area contains hazardous voltages. Opening the drawer and/or
wiring in an analog board should be performed by qualified personnel only. If the
unit has been in service, disconnect the power cord from both the unit and the
power source, turn off all gas regulators, and disconnect all tubing and any other
connections from the rear of the electronics drawer.
1. To access the analog board, remove the top of the environmental chamber.
2. Locate the Analog Output board.
3. Strip the ends of the conductor and wire it to the appropriate terminals of connectors
J
on the analog board. Refer to Figure 5-8 on page 5-6.
2
Product Description |
190544 0-1 V
Output Scaling
0-1 V Equals
0.0-100.0 °C
0-100.0%°CO
2
2
Chapter 5
190543 0-5 V
Output Scaling
0-5 V Equals
0.0-100.0 °C
0-100.0%°CO
2
Model 3962 | 5-5
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