Fronius FK 2500 - Thermostat Function; Flow Sensor Function; Validity of General Delivery and Payment Conditions

FK 2500 MV FC equipment:
- Centrifugal pump for single-shift operation
- Thermostat
- Flow sensor
- Auto-transformer (for multivoltage operation)
FK 2500 Rob equipment:
- Sealless, magnetically-coupled centrifugal pump for multi-shift operation - service
life = approx. 15,000 operating hours
- Thermostat
- Flow sensor
FK 2500 MV Rob equipment:
- Sealless, magnetically-coupled centrifugal pump for multi-shift operation - service
life = approx. 15,000 operating hours
- Thermostat
- Flow sensor
- Auto-transformer (for multivoltage operation)
Thermostat func-
tion
- The thermostat is fitted as standard on all cooling unit versions
- The thermostat monitors the coolant temperature
- If the coolant temperature rises to above 70°C (158°F), the "hot | H2O" indication is
automatically displayed and the welding current is interrupted. The cooling unit
remains operational
- The thermostat restores the welding current when the temperature falls to 65°C
(149°F).
Flow sensor
function
- The flow sensor monitors the coolant flow during welding
- If the coolant flow falls below 0.7l/min (0.18 gal./min [US]), the "no | H2O" indication
is automatically displayed, the welding current is interrupted and the cooling unit
switches off
- If the welding system has a Comfort or WeldProcessData (OPC Fronius LocalNet
server) control panel, the coolant flow can be shown on it
• To display the coolant flow value, press the F3 parameter selection / indicator
key on the Comfort control panel
A disruption in the coolant flow can occur as a result of:
- Insufficient coolant
- Contaminated coolant
- Leaks in the cooling circuit
- Faulty coolant pump
- Frozen coolant (welding at too low a temperature)
Validity of "Gen-
eral Delivery and
Payment Condi-
tions"
With regard to cooling units, the "General Delivery and Payment Conditions" according to
the price list only apply under the following conditions:
- FK 2500, FK 2500 FC, FK 2500 MV FC: Max. 8 hrs/day operation (single shift oper-
ation)
- FK 2500 Rob, FK 2500 MV Rob: 24 hrs/day operation (multi-shift operation)
- Only original coolant from the manufacturer is used
- Regular maintenance and regular change of coolant
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