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5511-229 GB/98.06/Rev. B1
2.6. Information Codes
During normal operation the information code will be 000. If one
or more of the following faults occurs, the letter "E" will be shown
in the current display, and the Infocode relay will be deenergized.
The information codes, which will be added together if more than
one is activated, can be displayed as required.
+2
Check the flow meter connection
Flow pulses have not been registered for a period of 48
hours, whilst Dt has been larger than 20°C.
+4
Check the temperature sensor in the return pipe
The return temperature has been less than 0°C or more
than 182°C for 10...20 minutes.
+8
Check the temperature sensor in the flow pipe
The flow temperature has been less than 0°C or more
than 182°C for 10...20 minutes.
+256
Check the flow meter code
The meter has registered an excess of water pulses,
corresponding to more than 1 integration per second.
Reseting information codes is described in chapter 14.4. If one or
more info codes are deselected under section 6.4 >DD<, these
codes will not deactivate the alarm relay, nor will "E" appear in
the display.
2.7. Optical data acquisition
An optical, infrared receiver/transmitter is situated in the bottom
left hand corner of MAXICAL
cates with serial data in accordance with IEC 1107/EN61107.
®
III's front panel which communi-
®
MAXICAL
I I I
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