SINCE 1889 Yamato Scientific Co.,Ltd.
Contact Us   Site Map JapaneseChinese
Products Support Corporate Profile Global Network Contact Us
HOMEProductsWater CirculatorCTW401/801, CTA401/801
Coolnics Circulator (Non-Freon Cooling Type) Integrated circulation unit
CTW401/801, CTA401/801

 CTW401/801、CTA401/801 have been discontinued.

Cooling system
Water cooled type (CTW)/
Air cooled type (CTA)
Operating temp. range
-10 to +70deg.C(CTW)/
0 to +70deg.C(CTA)
Temp. adjusting accuracy
Max. pump flow
8 L/min (CTA/CTW 401)/
11 L/min (CTA/CTW801)

PDF Catalog
Compact integrated accuracy constant temperature water circulator operable both as a desktop type and integrated in a unit.
Constant temperature water circulator integrated with the cooling/heating assembly and the 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 221357 221359 221356 221358
Model CTW401 CTW801 CTA401 CTA801
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
Temperature adjusting 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 (mm) W291 x D380 x H360 W331 x D480 x H380 W291 x D380 x H360 W371 x D440 x H380
Circulation port nipple diameter O.D.: 12.7φ
Number of thermo module 4 8 4 8
Rated current
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 Approx. 19.5 kg Approx. 29.5 kg Approx. 24 kg Approx. 36 kg
Accessories Heat insulation hose for circulation water of I.D.11.5φ x 1m x 2 100V power cord (with a 3P plug)
Optional parts External sensor JPt100Ω(cable length: 3m)

200V power cord (without plug) set
Product code 221611 221612 221613 221614
New Produts
Drying Oven
Laboratory Incubator
Products for Industry
Autoclave, Sterilizers
Plasma Cleaner, Asher
Freeze Dryer
Water Purifier
Rotary Evaporator
Water Circulator
Muffle Furnace
Water Bath
Spray Dryer
Laboratory Shaker
Laboratory Washer
Laboratory Stirrer
Laboratory Facilities
Vacuum Pump
For Biotechnology
X-Ray CT Scanner
Other Products
Product Brochure

Privacy Policy
Copyright c 2012 YAMATO SCIENTIFIC CO., LTD. All rights reserved.