Ametek 930 User Manual

Maintenance and Troubleshooting | 5-63
HS Code HStatus Alarm Type Condition / Description and Suggested Corrective Action
16 5 Fault f Temp Low
One or more of the temperature zones is operating below its Set
Point value by more than 5 %.
If the TCold parameter is used, the Sample and Vent Lines still
use 5 % of the Set Point as an alarm point. However, the ASR900
Sample Probe and Analyzer Oven temperature uses the TCold
value as an alarm Set Point.
This alarm will occur during a cold start, but will clear when the op-
erating temperature of all controlled zones are within their normal
operating ranges.
If this alarm is caused by low temperatures in any of the tempera-
ture zones, the analyzer will automatically switch to Backpurge
mode to ensure the system does not become plugged due to a low
temperature in one of its zones.
This alarm can also be caused by a power interruption or a power
spike.
Corrective Action:
• From the User Interface:
- Check the current temperature (Show MAI screen) for each
temperature zone and compare it to its Set Point temperature
(TStPt screen).
- Check each of the associated conguration parameters for
temperature control. These parameters may have been lost as
a result of a power interruption or a power spike.
• Take appropriate safety precautions, open the Electronics Enclo-
sure, and:
- Check the fuse for the zone which caused the alarm.
• Other checks/corrective action:
- Check the electrical connections between the heater and the
Sample Line, Vent Line, and Analyzer Oven. Check for proper
connections and damage to the wiring.
See Figures 5-12.1 and 5-12.2 for Sample and Vent Line over-
temperature wiring details.
- Using an Ohm Meter, measure the resistance of the tempera-
ture sensor (RTD) for the zone which caused the alarm (view
the TType screen to determine sensor type). Test it for an
open circuit. If the RTD is faulty, contact AMETEK for as-
sistance.
- Replace the Temperature Sensor (RTD) Daughter board(s).
Contact AMETEK to verify operation before removing this
board.
- Replace the Termination board. Contact AMETEK to verify
operation before removing this board.
(TCold) RUNF4 7
(Show MAI)
RUNF6 81..8
(TStPt) RUNF4 01..4
See Fuse Legend
inside Electronics Enclosure
door.
(TType)
RUNF4 41..4

Ametek 930 Specifications

General

Brand	Ametek
Model	930
Category	Measuring Instruments
Language	English