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HOMEProductsWater CirculatorCLH302/401/610
External Open Circulation Type Precision Circulator, Cool Line

302 401 610
Operating Temp. Range
-10deg.C to 80deg.C -15deg.C to 80deg.C
Temp. Adjustment Accuracy

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  • 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.

Model CLH302 CLH401 CLH610
Circulation Type Opened system circulation by pump
Operating Temperature Range -10 to +80deg.C -15 to +80deg.C
Temp. Adjustment Accuracy/Temp. fluctuation From ±0.1deg.C (JTMK05) at 10deg.C  From ±0.1deg.C (JTMK05/JIS) at 10deg.C  From ±0.1deg.C (JTMK05), ±0.2deg.C(JIS) at 10deg.C
Temp. Indication Unit 0.1deg.C
Cooling Capacity Approx. 450W (387Kcal) Approx.600W (517Kcal) Approx.785W (676Kcal)
at Liquid temp. 15deg.C at Liquid temp. 15deg.C at Liquid temp. 15deg.C
Temp. Control System PID control
Temp. Sensor Pt100Ω(Temp. control) + K-thermocouple (Overheat prevention) (Double sensor)
Temp. Setting • Display Digital
Heater 900W 1000W 1.5kW
Refrigerator • Coolant Air cooling 250W, R404A Air cooling 350W, R404A Air cooling 600W, R404A
Circulation Pump Magnet pump
Pump Max. Flow Rate (pump capacity) 5.4/6.2L/min
[10/11L/min. (50/60Hz) ]
[10/11L/min. (50/60Hz)]
[15/17L/min. (50/60Hz)]
Pump Max. Lift 3.5/5.0m
[4.9/6.9m (50/60Hz)]
[4.9/6.9m (50/60Hz)]
[8/11m (50/60Hz)]
Circulation Nozzle External dimension 13mm
Surrounding Operation Temp. Range 5 to 30deg.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. Drain hose 1pc.
Inner Tank Capacity 1.5L, I.D. 120 x H200 mm 3L, I.D. 150 x H200 mm
External Dimension W410 x D460 x H550 mm W380 x D513 x H725 mm W380 x D615 x H725 mm
Power Source AC100V 50/60Hz 13.5A(15A) AC100V 50/60Hz 16.5/15A(30A) AC200V 50/60Hz 12/11A(15A)
Weight Approx. 40kg Approx. 55kg Approx. 65kg

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 CLH302/401/610 221394
Straight circulation nozzle 13.0m dia Rc3/8 CLH302/401/610 221399
Straight circulation nozzle 16.0m dia Rc3/8 CLH302/401/610 221395
L shape circulation nozzle 10.5m dia Rc3/8 CLH302/401/610 221396
L shape circulation nozzle 13.0m dia Rc3/8 CLH302/401/610 221397
L shape circulation nozzle 16.0m dia Rc3/8 CLH302/401/610 221398
External communication adapter RS485-RS232C changeable CLH302/401/610 281388
Open type support tank 2L CLH302/401/610 221588
Testing bath CTB-3A, capacity : 3L CLH302/401/610 221801
Testing bath CTB-6A, capacity : 6L CLH302/401/610 221802
Testing bath CTB-12A, capacity : 12L CLH302/401/610 221803
Testing bath CTB-12S, capacity : 12L CLH302/401/610 221805
Testing bath CTB-24A, capacity : 24L CLH302/401/610 221804
Caster stopper 4 pcs 281440

Testing Bath

Circulation nozzle
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