Bühler technologies EGK 4S Guía Rápida página 10

EGK 4S
5.1.1 Overview of the menu items
Display of current temperature and operating state
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Display ____ Displayed is the block temperature with a resolution of 0,5°C/0.75 °F. By pressing the Enter button brings the
Current temperature
display to the Main Menu. The unit of temperature is adjustable in the menu Global Settings (Celsius or Fahrenheit).
Main Menu
Display
Cooler display
Top Settings
Global Settings
Exit
Exit Main Menu
6 Maintenance
Always observe the applicable safety- and operating regula-
tions when performing any type of maintenance. Please refer
to the original operator's manual on the included CD or online
at www.buehler-technologies.com for maintenance informa-
tion.
7 Service and Repair
Please refer to the original operator's manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
7.1 Troubleshooting
Problem / Possible cause
Malfunction
No display • Mains voltage in-
terrupted
• Fuse defective
Cooler doesn't • Compressor hous-
start up ing temperature
too high
Display flashes due to:
10 Bühler Technologies GmbH
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____
Submenu
____ ____
Temperature
E1_2
Set temperature
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Alarm high
Alarm hysteresis
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Alarm Low
Alarm hysteresis
____
Exit
Exit Submenu
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toP
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E
Action
• Connect to
mains; verify
• the plug is inser-
ted correctly
• Check fuse and
replace, if neces-
sary
• Allow to cool
down and ensure
adequate ventil-
ation
Setting range
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Parameter
tEMP ____
Cooler temperature
____
Parameter ___
A Hi
Upper alarm
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___
A Lo Parameter
Lower alarm
E
____
Parameter C
C - F
• Excess • Operating point
temperat-
ure
• Cooling output
• Flow rate / dew
• Built-in fan
• Temperat- • Control unit fail-
ure low
Condensate in- • Condensate trap
side the gas
output
• Valve inside the
• Cooler overload
Reduced gas • Gas circuit
flow rate
• Condensate out-
adjust value
store value
wait 5s: no storage
Adjust the set point:
2°C...20°C / 35.6°F...68°F
Set the upper alarm threshold above
setpoint: tEMP 1°C...7°C / 1.8°F...12.6°F
Set the lower alarm threshold below
setpoint: tEMP -1°C...-3°C / -1.8...-5.4F
Set unit Celsius or Fahrenheit
• Wait (max. 20
not yet reached min)
• Ensure the vents
too low despite are not covered
the cooler run- (heat buildup)
ning
• Maintain limits /
point / gas tem- install pre-separ-
perature too high ator
• Check and re-
stopped place if necessary
• Send in cooler
ure
• Empty condens-
full ate trap
• Flush in both dir-
automatic con- ections
densate drain
may be stuck
• Maintain limits
• Remove and
clogged clean heat ex-
changer
• Send in cooler
put iced over
BX450004 ◦ 07/2019