Thermo Scientific 49iQ, Инструкция по эксплуатации

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Troubleshooting
Troubleshooting Guide
6-2 49iQ Instruction Manual Thermo Scientific
Problem Possible Cause Action
Micro SD Card
Programming
If Micro SD card was just replaced,
re-install the old one. If the problem
is fixed, request a replacement Micro
SD card.
Instrument
temperature out of
range Fan failure Replace fan if not operating properly.
Dirty fan filter Clean or replace filter.
Overheating PCBA Locate defective PCBA reporting the
error and replace if needed.
Voltage levels out of
range Poor PCBA or cable
connection Locate PCBA where out of range
voltage level is being detected and
inspect connections. Replace PCBA if
damaged.
Solenoid current out
of range (option) Sticking or damaged
solenoid Reset solenoid via Settings>Health
Check>Status and Alarms>Valve and
Pump Resets screen. If damaged,
replace solenoid valve block.
Pump current out of
range Damaged or dirty pump Reset pump via Settings>Health
Check>Status and Alarms>Valve and
Pump Resets. Inspect and refurbish
pump. If pump motor is damaged,
replace pump.
Out of range pressure
high – upstream flow Too much positive pressure
in sample line Regulate line to lower pressure, or
install flow bypass near rear panel.
Out of range pressure
low – upstream flow Ineffective pump Evaluate for refit/replacement of
pump.
Internal leak Inspect lines downstream of flow
capillary. Replace tubing if needed.
Stuck solenoid valve
(zero/span gas valve option
only) Reset valve via Settings>Health
Check>Status and Alarms>Valve and
Pump Resets. Replace manifold valve
block if necessary.
Bench temperature
out of range Thermistor disconnected or
shorted Check to ensure range corresponds
with expected value. If not, select
proper range.
High: Excessive high
temperature in instrument,
duty cycle of temperature
control at zero
Check external temperature (must be
under 45
°
C); check rear panel fan for
operation, replace if necessary.
Low: Excessive low
temperature in instrument,
ineffective or disconnected
heater, duty cycle
temperature at 100% Check external temperature (must be
above 0
°
C); check heater connection
for disconnect or crimps.