The LHS 21L SYSTEM is a step further in the development of the tested and proven line of Leister air heaters for production processes: As with all SYSTEM process heating devices, the LHS 21L SYSTEM features direct connection to a PLC control system and offers system designers and production managers even better control and functionality. The system works in ambient temperatures up to 65 °C (149 °F) and the heating output adjustment is continuously variable up to 650 °C (1202 °F). This can be controlled by a PLC or stand-alone controller via a 4 - 20-mA signal or 0 - 10 V interface.
Technical Data
Metric
Imperial
Phases
1x
Voltage
230 V
Current
14 A
Power
3300 W
Max. air outlet temperature
650 °C
Min. airflow
Required minimum air volume at 100% heating power and an air inlet temperature of 20°C / 68°F
260 l/min
Max. air inlet temperature
65 °C
Max. ambient temperature
65 °C
Air temperature control
Closed loop
Overheating protection
Yes
Alarm output
Normally open contact
Max. inlet pressure
100 kPa
Nozzle connection ø
36.5 mm / 1.45 in
Display
Yes
Interfaces
0–10V; 4–20mA
Length
266 mm
Width
67 mm
Height
71 mm
Weight
0.65 kg
Approvals
CE; EAC; S+
Protection class
II
Highlights
Connection option to PLC control systems
Testing
Digital display of nominal and current values
The SYSTEM display, including the LHS 21L SYSTEM, offers the user precise, on-demand information on nominal and current temperature values. The integrated thermocouple delivers precise data.
Precision
Connections and potentiometer for customized operation
The LHS 21L SYSTEM is suitable for both special integration and controlled, isolated operation through control and adjustment modes.
Precise
Wide range of nozzles and accessories
Thanks to assembly assistance, connections and adapters including a wide range of nozzles and accessories, the LHS 21L SYSTEM is ideal for specific user requirements.
