SSI America 9210 user manual Error messages

M4557 - Model 9210 Nitriding Controller

Quantity: is one of H2 CO CO2

xxxx:is the measured quantity. The resolution is the same as the display:

Unit: is one of % percent r compensation ratio

The compensation ratio is the diagnostic data for instruments with a secondary gas background. When requested as a data it will return the present ratio for compensating the primary measured gas “R1” I.e. for H2 in N2 with a secondary gas of CO2

D1 CO2=0.069r If you know the concentration of the CO2 can calculate the correction in the H2 reading as H2- ( CO2 * 0.069)

In over-range condition (when the display shows ‘HI’) xxxxx will be ‘+++++’ In under-range condition (when the display shows ‘LO’) xxxxx will be ‘-----’

Controller.	Sensor
Reading	R1 H2= 98.5%	Instrument request a
		reading
Span=99.0	S1 Pass	Controller requests a span
		setting of 99.0%
Reading	R1 H2= 99.0%

I.e. this would set the present instrument reading to 99.0% The unit “%” is assumed to be the same as the reading.

Error messages

Error messages take the form ‘? xx’ where ‘xx’ is a numeric code as explained below Comms. Errors:

Code	Error	Description
90	Buffer overflow	More than 15 characters were received without message terminator
		(<CR><LF>). Any subsequent characters will begin a new message.
91	Message timeout	10 seconds has elapsed since the last character was received
		without message terminator.
92	Bad opcode	Message was received correctly terminated but not understood (e.g.
		‘Fred=1<CR><LF>’)
93	Bad operand	Message was received correctly terminated and understood but the
		line number wasn’t (e.g. ‘Reading=Q<CR><LF>’).

SSi Manual SERIES 9210-M4557-Nitriding Page 61 of 61