Pcb Temperature; Input Voltage; Battery Voltage - Teledyne 5800 Installation And Operation Manual

SELECT DIAG: (<-->)
REFRIG TEMPERATURE
REFRIG TEMPERATURE:
AIR=__C EVAP=__C
COMPRESSOR WARM-UP!
COOLING IN: 44:45

5.2.9 PCB Temperature

SELECT DIAG: (<-->)
PCB TEMPERATURE
PCB TEMPERATURE:
__._ C

5.2.10 Input Voltage

SELECT DIAG: (<-->)
INPUT VOLTAGE
INPUT VOLTAGE:
__._ V

5.2.11 Battery Voltage

the Stop or Enter button. There is no pass or fail. This test
simply provides continuous temperature monitoring and
cooling/heating states.
To display the refrigerator temperature:
1. Select the REFRIG TEMPERATURE option and press Enter.
2. The display shows the temperature until you press the
Stop or Enter button.
Note
The refrigeration system may not operate for 45 minutes after
applying power. This delay allows time for the compressor
heater to drive off any refrigerant dissolved in the compressor
oil.
The TEST PCB TEMPERATURE diagnostic d isplays the
temperature of the Main CPU Printed Circuit Board (PCB).
When this test is started, the sampler will briefly display the
temperature.
The Main CPU board has a heater which prevents condensation
from forming inside the electronics compartment. If the sampler
has been connected to AC power for at least 30 minutes, the PCB
temperature should be greater than the ambient temperature.
To display the PCB temperature:
1. Select the PCB TEMPERATURE option and press Enter.
2. The display briefly shows the temperature.
If you suspect that the internal heater is not working, contact
your authorized Isco service facility or the Teledyne Isco factory.
The INPUT VOLTAGE diagnostic displays the Main CPU board's
DC voltage supplied by the power module. When this test is
started, the sampler will briefly display the input power voltage.
To display the input voltage:
1. Select the INPUT VOLTAGE option and press Enter.
2. The display briefly shows the voltage.
The normal voltage range is between 12.3 and 12.7 VDC. If the
voltage is outside of this range, the power supply module is
suspect. Contact your authorized Isco service facility or the
Teledyne Isco factory for further troubleshooting assistance.
The Main CPU board has an internal battery that provides
back-up power for the sampler memory while the system is not
powered. The battery life is typically longer than five years.
Isco 5800 Refrigerated Sampler
Section 5 Maintenance
5-11