IHR Status Codes
'''Status Codes on IHR (seen in “Follow data log”)'''
'''“I had a look over TeamViewer, and the cryocooler status code is * 0x8a0, which means that there is a cooling water flow issue which has caused the working gas temperature to rise.
...Oh, now the code changed back to 0x800, meaning normal idle status. I'll try setting the system back to normal mode…
Oh, it failed again due to the same reason :( Please call someone to check the water circulation, Jonathan”'''
'''(From Antti - 29th August 2019) - pumps ‘off’ on day of chiller service, when told they wouldn't be).'''
''“These codes can be seen in the '''IHR “Follow data log” (underlined above)'''. The codes are from Sumitomo and indicate the status of the compressor/cold head”.''
{| class="wikitable" |+Status Codes: |- | SUMITOMO_DIAG_LOW_PRESSURE_SHUTDOWN | 0x001 |- | UNCONNECTED | 0x002 |- | UNCONNECTED | 0x004 |- | UNCONNECTED | 0x008 |- | SUMITOMO_DIAG_POWER_ERROR | 0x010 |- |'''SUMITOMO_LOW_WATER_FLOW''' |'''0x020''' |- | SUMITOMO_DIAG_HIGH_WATER_TEMP | 0x040 |- |'''SUMITOMO_DIAG_GAS_TEMP_ERROR''' |'''0x080''' |- | SUMITOMO_DIAG_OIL_SHUTDOWN | 0x100 |- | SUMITOMO_DIAG_MOTOR_WINDING_TEMP | 0x200 |- | SUMITOMO_DIAG_RUN_STATUS | 0x400 |- |'''SUMITOMO_DIAG_SOLENOID_OPEN''' |'''0x800''' |}
'''''*''' “By adding the hexadecimals '''0x800 + 0x080+ 0x020 = 0x8a0''' which actually means that the water flow is low and causes the work gas lines to heat up > fail safe mode > restart compressor when water cooling is working again”.''
'''(Reply from Henri - 3rd September 2019 to my query over IHR code descriptions).'''
'''02/05/2023''' - Status code '''0x420''' - was seen during a IHR fail-safe error that evening (7:26pm).
Based on the above codes, it would signify the cryocooler was in '''"Run"''' mode, but with '''"Low Water Flow"''', generating the sent '''"Error in cryocooler!"''' message.