Labconco FreeZone Triad Freeze Dry System 74000 Series User Manual
Page 36
Product Service 816-333-8811 or 1-800-522-7658
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The operation of the Triad Freeze Dry System can be monitored using a
computer connected to the RS232 receptacle located on the rear panel of the
freeze dryer. The computer cannot control the operation of the freeze dry
system.
Computer Connection for Computer Interface
Check your computer to see which type of serial port is provided. Use one of
the two connecting cables listed below:
1.
Computers with a 25-pin D-sub male serial connector should use
Connect Cable, Labconco part number 7537801, to connect a
computer to the Labconco Freeze Dry System.
2.
Computers with a 9-pin D-sub male serial connector should use
Connect Cable, Labconco part number 7537800, to connect a
computer to the Labconco Freeze Dry System.
The purpose of the RS232 interface is to send data to a data logging computer
to monitor the state and activity of the freeze dry system This data is half
duplex data. The data properties are as follows:
1.
Data Rate 2400 Baud
2.
8 bit word length
3.
1 Start bit, 1 Stop bit
4.
No parity is transmitted
5.
Standard ASCII character set
The time between data transmissions may be varied by the user to occur at
10, 30, 60, 300 or 600 second intervals. Press the display button until the set
up indicator lights. Press the enter button until the RS232 screen appears on
the display.
RS-232 TRANSMISSION RATE
10
SECONDS