Low Temperature Circulator CTP Series

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Low Temperature Circulator CTP-1000・3000

• Circulation of temperature-controlled water to external open system

                   CTP-1000                                    CTP-3000

 

• Guideline for selecting a model

Model CTP-1000 CTP-2000
Temperature of water Bath capacity
10℃ 12L 24L
20℃ 28L 50L
30℃ 16L 28L

♦ Equipped with a self-priming pump, circulation starts simply by performing a priming operation during installation. The placement of the water bath at the circulation destination is not restricted, and self-priming is possible up to a height of 2 meters.

♦ For small baths requiring minimal circulation, attaching the optional bypass line allows circulation rates as low as 1L/min.

♦ By using the optional closed system circulation unit, circulation to a closed-loop system is also possible.

♦ Equipped with a standard suction filter, it prevents dust and foreign objects from entering the circulation path, protecting the pump from damage.

♦ You can choose between standard mode and eco mode. Selecting eco mode helps reduce power consumption. Note: When operating in eco mode, the temperature control accuracy will be ±2°C.

♦ It is now possible to clean scale deposit by circulating a scale cleaning agent within the circulation path.

 

• Circulation to both open and closed systems is possible

 

• Supports Auto-start, Auto-stop, and Program operation

Equipped with Auto-start and Auto-stop control, temperature cycle testing can be performed at different temperatures.

♦ Auto-start operation

After the set time t (maximum 99 hours and 59 minutes) has elapsed, the operation starts, and temperature control is performed at the set temperature T1.

 

 

 

 

♦ Auto-stop operation

The operation stops after the set time t (maximum 99 hours and 59 minutes) has elapsed.

 

 

 

 

 

♦ 2-step program operation

The equipment operates at the set temperature for the duration of t1. After t1 has elapsed, it transitions to the set temperature T2. Following the duration , the unit performs a specified number of repeated operations and then stops.

 

 

 

• Prevention of heater malfunction

♦ The cumulative operating time is recorded, and an alarm will sound to notify you when it is time to remove the scale deposit that has built up on the heater. By using the cleaner for scale deposit (sold separately, see “Options” below), you can remove the scale deposit that has built up on the heater, preventing heater breakdown.

 

• Specifications

Product name Low temperature circulator 
Model CTP-1000 CTP-3000
Cat. No. 204880 204890
Circulation method Air-cooled・Open circulation system
Compatible circulating water Tap water, ethylene glycol
Temperature control range・accuracy -10 to 80℃・±0.2℃ or more -20 to 80℃・±0.1℃
Cooling capacity at 10℃ 200W (approx. 170 kcal/h) 360W (approx. 310 kcal/h)
Cooling capacity at -10℃ 120W (approx. 100 kcal/h) 230W (approx. 190 kcal/h)
Max. flow rate (50/60Hz) 7 / 7.5L/min 15 / 15.5L/min
Max. lifting height 
(50/60Hz)
4.5 / 6.0m
Safety features Earth leakage・overcurrent breaker, Temperature controller self-diagnostic function, Sensor error alarm, Refrigerator overload, Refrigerator protection timer, Independent overheat protector (fixed),
Refrigerator high-pressure switch (CTP-3000 model only)
External input・output External temperature sensor terminal, alarm output terminal (no-voltage b contact: 250VAC / 30VDC 2A Max.), recorder output terminal (1 to 4VDC)
Refrigerator ・refrigerant Air-cooled  300W・R134a Air-cooled  425W・R404A
Circulation pump Self-priming pump (self-priming height 2m)
External circulation nozzle (both discharge・ return) 10.5mm OD hose 16.5mm OD hose (G3/4)
Bath material・capacity Stainless steel・Approx. 1 L Stainless steel・Approx. 1.5 L
Ambient temperature range 5 to 35℃
Outer dimensions (mm)・weight 324W x 397(437)D x 
480(502)H・Approx. 35kg
250W x 480(520)D x 
805(825)H・Approx. 44kg
Power input・supply voltage 10.5A, 1.05kVA・100VAC
50/60Hz
13A, 1.3kVA ・100VAC
50/60Hz
Rated input 900W

◊ Performance are at room temperature of 20°C, tap water, rated supply voltage, 50Hz, and no load.

◊  Cooling capacity is ±10% of the indicated capacity.

◊ External circulation capacity is ±10% of the indicated capacity.

◊ Cooling capacity and pump flow rate are at maximum cooling water circulation.

◊ When setting the liquid temperature below 10°C, use low-temperature heat transfer fluid.

◊ Pure water cannot be used.

◊ Dimensions in parentheses include protrusions.

 

• Data

♦ Cooling capacity curve

◊ Cooling capacity is ±10% of the indicated capacity.

◊ Display capacity is the capacity of the equipment alone.

◊ The cooling capacity drops at a liquid temperature of 30°C. This is because the capacity of the unit is reduced to balance the capacity of the heater.

 

♦ Circulation capacity curve

 

• Options

♦ Circulation unit for closed system

Circulation to a closed system becomes possible. The unit is designed to integrate seamlessly into the equipment.

Model Cat. No.
For CTP-1000 SBT-1000 206280
For CTP-3000 SBT-3000 206290

 

♦ Bypass line

The minimum flow rate can be reduced to 1L/min by using the bypass line.

Cat. No.
For CTP-1000 206310
For CTP-3000 206320

 

Product name Cat. No.
Cart

For CTP-1000 model. Easy to move the equipment. Use when placing on the floor.

113330
External temperature sensor

This is used to control the equipment according to the temperature at the circulation destination.

114220
Output lead wires

Output lead wires (1m) for both temperature and alarm.

114230
Cleaner for scale deposit

This product cleans scale deposits from the heater within the equipment’s circulation pathway, helping to maintain heater performance and extend its lifespan.
Content: 1kg. Use 100g for every 2L of circulating water.

206340

 

• Cooling hose set (applicable temperature: -30℃ to 80℃)

Tube ID (mm) Length (m) Cat. No.
9.0 1 112690
2 112700
5 174420
15.0 1 113290
2 143340
5 174460