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OPERATION
DATA OUTPUT CAPABILITIES
USB Outputs
The incubator generates data outputs describing the chamber temperature and CO
2
concentration
percentage as a digital log line, once per minute. These outputs are transmitted through a USB
port located on the right side of the unit using RS232 serial protocol.
Required Software
Viewing and logging this output requires a terminal emulator program such
as the open source (BSD license) emulator, Tera Term.
Digital Outputs
Parameter Output Channel
Temperature C1
CO
2
C3
RH % C4
Example logline output: C1=37.0 C3=5.0 C4=95
Dry Contact Alarm Port
This port communicates all alarm activations as On / Off outputs in which On indicates an alarm
instance. The port connects to a standard audio jack and cable (male mono phono plug, ¼ inch (6.3
mm).
Jacks are not included with the incubator.
Optional Outputs
The SCO5W may be ordered from the factory as a special quote (SQ) unit equipped with a pair of 4 to 20
milliamp analog outputs describing the current chamber temperature and CO
2
levels.
The outputs are transmitted through two jack ports on the right side of the incubator. The port
connects to a standard audio jack and cable (male mono phono plug, ¼ inch (6.3 mm). Jacks are not
included with the incubator.
Jack Outputs
Parameter Parameter Value at 4mA Parameter Value at 20mA
Temperature 0°C 70°C
CO
2
0% CO
2
20% CO
2
Data Monitoring Systems – Max Resistance
For building management and other data monitoring or logging systems, the maximum resistance of
the current loop driven by either output from the 4-20mA module is 250 Ohms. At higher loop
resistances, the current value will be erroneously low for parameter values near the top of the scale.
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