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HOMEProductsWater CirculatorCTW401S/801S, CTA401S/801S
Coolnics Circulator (Non-Freon Cooling Type) Separate type
CTW401S/801S, CTA401S/801S

 CTW401S/801S、CTA401S/801S have been discontinued.

Cooling system
Water cooled type (CTW-S)/
Air cooled type (CTA-S)
Operating temp. range
-10 to +70deg.C(CTW-S)/
0 to +70deg.C(CTA-S)
Temp. adjusting accuracy
Max. pump flow
8 L/min (CTA/W-S 401)/
11 L/min (CTA/W-S 801)

PDF Catalog
Separate type accuracy constant temperature water circulator operable both as a desktop type and integrated compactly in a unit.
Constant temperature water circulator with separate cooling/heating assembly and power control assembly and being able to precisely control constant temperature water at around room temperature. It uses a freon-free cooling system and is environmentally friendly as well as supports free power supply from AC100V to AC230V.
  • This product is a circulating type and can be used as a constant bath that can cool, heat, and retain heat of your bath.
  • RS485 communication function equipped as standard allows centralized management with a PC.
  • Water cooled heat discharge system (CTW) and Air cooled type (CTA) that does not need any tap water are available.
  • Selectable from different cooling capacities and pump capacities according to the specific applications.
  • Free power supply from AC100V to 230V. Power plug or adapter is option for AC200V to 230V.
  • Fixed value operation, program operation, auto stop operation, quick auto stop operation, auto start operation, external sensor control, external communication function, alarm output, etc.

Product code 221361 221363 221360 221362
Model CTW401S CTW801S CTA401S CTA801S
System Water cooled electronic system Integrated external open circulation Air cooled electronic system Integrated external open circulation
Performance Operating temperature range -10 to +70deg.C 0 to +70deg.C
Temp. adjustment accuracy ±0.1deg.C
Cooling capacity 125 Kcal/h (145W) 250 kcal/h (215W) 80 kcal/h (93W) 160 kcal/h (186W)
Maximum flow 8 L/min 11 L/min 8 L/min 11 L/min
Max. discharge pressure 29.4 kPa 78.4 kPa 29.4 kPa 78.4 kPa
Configuration Temperature control PID control with a micro computer CR5A-CT (4-20 mA control) Interactive digital setting and display
Control sensor Platinum resistance temperature detector (Pt100Ω)
Timer function 1 min to 99 hrs 50 min, 100 to 9999 hrs (with time/clock switching function)
Operation function Fixed value operation (with the pause function), fixed value auto stop operation, quick auto stop operation, fixed value auto start operation, program operation (99 steps, with the step separation function, repeat, gradient operation, etc.), program auto start operation
Other functions Self diagnostics function, RS485 external communication function, alarm output terminal, calibration offset function, power failure compensation function, power energy and electric power charge records display function, external temperature sensor switching, operation guidance function, etc.
Material of cooling/heating unit liquid contact part Stainless steel (SUS304)
Safety unit Over current electric leakage breaker, key lock function
Standards External size
Heat exchanger assembly W291 x D360 x H175 W311 x D480 x H202 W291 x D380 x H190 W361 x D410 x H265
Power supply control assembly W291 x D342 x H195
Circulation port nipple diameter O.D.: 12.7φ
Number of thermo module 4 8 4 8
Power supply At AC100V 6A (15A) 10A (15A) 5A (15A) 9A (15A)
At AC120V 5A 8.4A 4.2A 7.5A
At AC200V 3A 5A 2.5A 4.5A
At AC220V 2.8A 4.6A 2.3A 4.1A
At AC230V 2.5A 4.2A 2.1A 3.8A
Weight Heat exchanger assembly Approx. 12.5 kg Approx. 20 kg Approx. 16 kg Approx. 30 kg
Power supply control assembly Approx. 10 kg
Accessories Heat insulation hose for circulation water of I.D.11.5φ x 1m x 2, Heat radiation hose I.D.:12 mm x 3m x 1, 100V power cord (with a 3P plug)
Optional parts External sensor JPt100Ω(cable length: 3m)

200V power cord (without plug) set
Product code 221615 221616 221617 221618
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