Teledyne 2120 - Trace Nitrogen in Argon Analyzer - Manual (Page 45)

Trace Nitrogen in Argon Analyzer Operation
c. The recorder output indicates a full-scale signal or
slightly higher.
d. The digital overrange contacts change state (NC to
open or NO to closed).
If the above events do not occur, suspect a fault in the Overrange
Protection Circuit and contact the factory.
Teledyne Analytical Instruments
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