Thermo Scientific DSP2 Installation And Operation Manual page 41

Configure Fault/Excess Reject
Configure fault is used to set the parameters for the fault source called excess reject. Excess reject monitors the number of
rejections occurring within a window. The window is either a timed function or when the unit has a photo eye, a function of the
number of products. For example, if excess reject is set to 10 rejects within 5 minutes and that number of rejects occurs within
the specified period, a fault will occur. Be sure to check under fault to see that excess reject is listed as "OK".
Faults
This menu displays a list of fault sources and their current state. The fault sources are as follows:
Only those listed in the right hand side column can be edited to "ignore" the fault source. When listed as "ignore" this fault
source will not be monitored by the unit. If you wish to change the state of these fault sources use the select key to move the
cursor to the fault source and then the Ignore/Monitor key to change the monitoring state.
Refer to the Fault Finding section of this manual for help in troubleshooting fault conditions.
DSP Net
This menu is used to set communication identification and protocol for use with a Goring Kerr DSP Net communication system.
Each detector connected to a communications network must have an individual ID number. Press DSP ID to edit the detectors
identification number.
Communication protocol for DSP Net should be set to RS485. This can be changed to RS232 for local communication. Contact
Goring Kerr for assistance.
Clear Peak Control
This menu selects the source that will clear the peak signal indicated in the sensitivity menu. Photo eye should be used
whenever a photo eye is present with the system. This means that each time the photo eye is blocked, the peak signal number
will be cleared and refreshed. On systems that do not have a photo eye, Threshold Trip will be used. In this condition, the peak
signal will only be reset whenever a detection occurs.
Filter/Sample Rate
Under this menu the filter size and the sample rate can be monitored. Neither of these functions should be changed under
normal conditions. The sample rate is a number which represents the rate at which the DSP is sampling the incoming analog
signal. The detector selects this sample rate automatically when you program the application speed and aperture size. Also
when the application is programmed, the detector determines the optimum filter it should use for the speed which you have
programmed. It will select from a list of four defined filters, DNR1 through DNR4.
Search head
R.F. Board
Reject confirm
Battery low
Product memory
Photo eye
Photo reject
EMU reject
QA test response
QA test result
Excess reject
Phase limits
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