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External Open Circulation Type Circulator, Cool Line

Operating Temp. Range
-10deg.C to Room Temp.
Temp. Adjustment Accuracy
±1.5 to 2.0deg.C

  • Circulation Pump flow rate is freely controllable by flow adjustment valve for various tank size.
  • Flow sensor can detect the flow decreasing with alarm lamp and stop operation.

PDF Catalog

Model CLS302
Circulation Type Opened system circulation by pump
Operating Temperature Range -10deg.C to Room temp.
Tem. Adjustment Accuracy ±1.5 to ±2.0deg.C
Tem. Indication Unit 1deg.C
Cooling Capacity Approx. 450W (387Kcal) at Liquid temp. 15deg.C
Temp. Control System Refrigeration On/Off control
Temp. Sensor T-thermocouple
Temp. Setting • Display Digital
Refrigerator • Coolant Air cooling250W R404A
Circulation Pump Magnet pump
Pump Max. Flow Rate 10/11L/min. (50/60Hz)
Pump Max. Lift 4.9/6.9m (50/60Hz)
Circulation Nozzle External dimension 13mm
Surrounding Operation Temp. Range 5 to 30 deg.C
Safety Device
Safety Countermeasures Self diagnosis functions, Electric leakage breaker with over current protection, Refrigerator over load relay, Refrigerator protection-delay timer function, Refrigerator high pressure switch, Flow sensor, Circulation pump protection by-pass
Other Function Flow rate adjustment valve, Drain cock, Dust prevention filter, Temp. output terminal, Compressor pressure indicator, Calibration off set function, Key lock function, Breakout protection function
Accessories Circulation insulation hose 1m x 2pcs. (1pc. with manual pump), Hose band 4pcs.
Internal Dimension I.D. 120 x H200 mm
Inner Tank Capacity 1.5L
External Dimension W410 x D460 x H550 mm
Power Source AC100V 50/60Hz 3.5A
Weight Approx. 40kg

Control Panel

Flow amount monitor, Compressor monitor, Compressor operation

Operation Example Back Side

Size (mm)

Optional Items
Description Model No. Product Code
Straight circulation nozzle 10.5m dia Rc3/8 CLS302 221394
Straight circulation nozzle 16.0m dia Rc3/8 CLS302 221395
Straight circulation nozzle 13.0m dia Rc3/8 CLS302 221399
L shape circulation nozzle 10.5m dia Rc3/8 CLS302 221396
L shape circulation nozzle 13.0m dia Rc3/8 CLS302 221397
L shape circulation nozzle 16.0m dia Rc3/8 CLS302 221398
External communication adapter RS485-RS232C changeable CLS302 281388
Open type support tank 2L CLS302 221588
Testing bath CTB-3A, capacity : 3L CLS302 221801
Testing bath CTB-6A, capacity : 6L CLS302 221802
Testing bath CTB-12A, capacity : 12L CLS302 221803
Testing bath CTB-12S, capacity : 12L CLS302 221805
Testing bath CTB-24A, capacity : 24L CLS302 221804
Caster stopper, 4pcs CLS302 281440
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