Remote Alarm Tests - Thermo Scientific CryoExtra CE8100 Series Operating And Maintenance Manual

Controller Printer Kit (P/N CE8100PRINT)
• Epson LX-300+II Serial Dot Matrix Printer
• RS-485 Converter and Adapters
• User's Guide
Installation
1. Setup printer as described in the included user's guide.
Assemble and connect RS-485 converter and adapters
as shown below.

Remote Alarm Tests

Global Remote
The Global Remote contacts can be checked for continuity
using a digital multimeter or ohm meter.
• Normal State (No Alarms)
There should be continuity between the COM and NC
terminals.
The COM – NO circuit should be open.
• Alarm State
There should be continuity between the COM and NO
terminals.
The COM – NC circuit should be open.
Thermo Fisher Scientific CryoExtra CE8100 Series
2. Connect the printer to Controller serial port 1 or 2 via the
RS-485 converter assembly.
3. Set the corresponding COM Setup to "9600 N81".
4. Set the corresponding COM Type to "Printer".
5. Adjust the Print Interval to the desired value.
6. Test setup by forcing an event or printing a new header or
event.
Discrete Contacts
The Discrete Contacts can be tested for continuity using a
digital multimeter with diode check. Since the Discrete
Contacts are open collectors, the diode check function
( ) should be used.
• Normal State (No Alarms)
All Discrete Contact terminals should be open with
respect to COMMON.
• Alarm State
There should be continuity between the specific
active alarm terminal and COMMON. Inactive alarms
should remain open with respect to COMMON.
Operation | 49