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HOME > Product line-up > Constant Temperature Baths > Low Temperature Baths > Low Temperature Bath NCB-1210A・NCB-1230
HOME > Product line-up > Constant Temperature Baths > Low Temperature Baths > Low Temperature Bath NCB-1210A・NCB-1230


Products using non-fluorocarbon refrigerants make a significant contribution to reducing global warming. Unlike conventional products using fluorocarbon refrigerants, they have an ozone depletion potential (ODP) of zero and an extremely low global warming potential (GWP).
Switching to non-fluorocarbon refrigerants provides multiple benefits, not only in terms of environmental protection but also in other areas
Point 01
Point 02
Point 03
Eliminates the burdens of managing fluorocarbon-containing equipment—such as quarterly simplified inspections, routine checks, and record-keeping requirements. (Varies by country.)
Eliminates the disposal costs and administrative burden associated with fluorocarbon-containing equipment. (Varies by country.)
Contributes to reducing greenhouse gas emissions and helps achieve decarbonization goals.

Equipped with various output terminals as standard
Variable independent overheat protector

It is equipped as standard with an external temperature sensor terminal that enables control based on the temperature of the circulation destination (internal temperature control), an analog output (lead wire option) for a recorder to record temperatures, and an alarm output terminal.
Using the optional external temperature sensor, you can perform temperature control corresponding to external devices or sample temperatures.

Equipped with a variable independent overheat protector as standard, which can be set according to the operating temperature.
| Product name | Low Temperature Bath | |
| Model | NCB-1210A | NCB-1230 |
| Cat. No. | 266650 | 287900 |
| Circulation method | Closed circulation system | |
| Temp. control range | -30 to 95℃ | |
| Temp. accuracy | ±0.1°C or less | |
| External circulation capacity (50/60Hz) | Max. flow rate: 4.5/5.0 L/min Max. lifting height: 1.2/1.7m | Max. flow rate: 9.3/11 L/min Max. lifting height: 4.3/6.3m |
| Cooling capacity | Liquid temp. 10℃:180W (154kcal/h) | Liquid temp. 10℃:200W (172kcal/h) |
| Temp. control | PID control with non-contact (zero-cross) output | |
| Setting / Display | Membrane keypad input / digital display (resolution 1℃) | |
| Timer function | Auto-start, Auto-stop | |
| Program functions | Step mode | |
| Other functions | Auto-tuning, temperature display compensation, power failure recovery settings | |
| Safety features | Upper/lower temperature limit alarms, Low water level detection, Overshoot detection, Control system abnormality, Sensor abnormality, High-pressure switch, Refrigeration unit overload relay, Adjustable independent over-temperature protector, Earth leakage breaker. | |
| External input / output | PC communication (RS-485, asynchronous serial communication), External temperature sensor terminal, Recorder output terminal 1 to 4VDC (−40 to 110°C), Alarm output terminal (voltage-free contact [a-contact], 250VAC / max. 3 A). | |
| Recorder output | 1 to 4VDC (-40 to 110℃) | |
| Temp. sensor | Platinum resistance thermometer Pt100Ω | |
| Heater | 500W (Stainless steel) | |
| Stirring in bath | Water jet flow stirring | |
| Bath material | Stainless steel | |
| Inner bath dimensions (mm) | 140W x 260D x 150H | |
| Effective bath dimensions (mm) | 110W x 80D x 130H | |
| Bath capacity | Approx. 4L | |
| External circulation nozzle | Outer / inlet ports 11mm OD hose port | |
| Cooling coil | Stainless steel | |
| Refrigerator / Refrigerant | Air-cooled, output 300W・R507A | Air-cooled, output 400W・ R209 (non-CFC) |
| Ambient temp. range | 5 to 35℃ | |
| Power input | 12A 1.2kVA | 13A 1.3kVA |
| Supply voltage | 100VAC 50/60Hz | |
| Outer dimensions (mm) | 210(225)W x 433(530)D x 600H | |
| Weight | Approx. 32kg | Approx. 34kg |

Cooling capacity varies depending on operating conditions such as room temperature, power supply voltage, type of circulating fluid, and connected piping.



| Product name | Model | Cat. No. | Remarks |
| External temperature sensor | STP-200 | 113620 | It is used to control the bath temperature in response to the temperature of the circulation destination or the sample temperature. *When using an external temperature sensor, control may not be possible due to conditions such as a large heat capacity of the sample or low thermal conductivity of the vessel. An initial overshoot may occur. |
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| Cold insulation hose | — | 112690 | 1m: 9mm ID (applicable temperature: -35 to 80°C) |
![]() | — | 112700 | 2m: 9mm ID (applicable temperature: -35 to 80°C) |
| — | 174420 | 5m: 9mm ID (applicable temperature: -35 to 80°C) | |
| Lead wire | ROL-100 | 114230 | This is a connection lead wire used for both temperature output and alarm output. |
![]() | ROL-500 | 225890 | |
| ROL-1000 | 225900 | ||
| Silicone tubing | — | 112720 | 9mm ID x 13mm OD, length 5m (applicable temperature: -50 to 180°C) |
| Pt screw port | — | 216450 | Use this when connecting metal piping. Standard: Tapered female thread Rc3/8 |
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| Communication cable | — | 269050 | This is a cable for connecting the NCB series to a computer. Dedicated for EPMon, 9p-USB |