Merlin 4 - 1
Thermo Scientific
Chapter 4
Maintenance
This chapter covers the chiller's basic maintenance.
Error Codes
ROM checksum. Clear with
key.
Test failure. Locks up the program.
Display board failure. Clears when display board is fixed.
Critical checksum failure. Clear with
key.
Synchronous comm - check connections.
Asynchronous comm
Bad calibration data - redo calibration
Unusual Hardware Conditions
These errors will flash on the display and cannot be cleared. These are
internal controller problems.
through
- Interrupt errors during runtime.
BOM invalid
Functional/ Machine errors
These errors will clear themselves once the problem disappears.
Display Indication
Low temp setpoint warning/fault
Low level warning, fluid below minimum fill level, see Chapter 2
High temp setpoint warning/fault
Shorted internal temperature sensor (rdt1)
Open internal temperature sensor (rtd1)
Содержание Neslab Merlin M 75
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