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)
Summary of Contents for Neslab Merlin M 75
Page 2: ......
Page 24: ...Merlin MD EG PG pH DI EG PG DI Polar SDS 4 0 gpm 15 1 lpm Thermo Scientific Polar 19...
Page 30: ...EG PG pH pH DI EG PG DI Polar SDS 4 0 gpm 15 1 lpm Thermo Scientific Polar 19 mm...
Page 66: ......
Page 82: ...2 12 Merlin Chapter 2 Thermo Scientific...
Page 98: ...5 4 Merlin Chapter 5 ThermoScientific...
Page 103: ......
