LTC4 Refrigerated Circulation Baths
The Grant LTC4 offers exceptional performance for routine and sophisticated applications requiring precise temperature control in the range of -30 to 100°C. The LTC4 includes the TX150 heating circulator and an R4 refrigeration tank/unit, complete with insulated tubing and clips to form a ready-to-use system.
The TX150 Optima™ is a high-performance programmable digital heating circulator with an exceptionally simple user interface. This allows for quick setup of multiple parameters through a powerful menu system and provides sophisticated control for temperature-controlled applications. USB connectivity is available for a PC or laptop. It is programmable with Labwise™, a software program to set all parameters, including programs, via PC. Labwise™ also features real-time status windows, a graphical display of controller performance during program execution, and allows for data logging for future recall and analysis.
- Powerful pump for external circulation, max flow 18 L/min, max pressure 310 mbar
- Color QVGA TFT display
- Setpoint, plus three adjustable preset temperature values
- Timer function for reaction times, 99 hours, 59 minutes, with audible alarm and heater control
- Liquid selection safety function adjusts based on temperature range or heater power
- Fault indication display
- Programmable relay
- Two-point user recalibration of internal and external probes (TXPEP, TXSEP)
- Offset adjustment for optimal isothermal performance
- Can be programmed to turn refrigeration on and off during a heating and cooling program
- Memory capacity for a program up to 30 segments
- Choice of languages: English, French, German, Spanish and Italian
- Low liquid protection via float switch
- Adjustable overtemperature protection
- Convenient accessory clamp available for mounting to vessels
- Stability ± 0.1°C
Note: The refrigeration unit can be switched off independently of the circulator to allow for heating-only applications. All refrigerating bases can be used up to a maximum temperature of 100°C.
Applications
- University research/teaching - temperature control of external equipment including: spectrophotometers and refractometers
- Circulation of temperature control fluid to jacketed vessels, cooling crystallization vessels
- Industrial laboratories: temperature probe calibration, product testing, product quality control, temperature control of external equipment
Specifications
| Dimensions (hxwxd) | 755 x 515 x 390 mm |
| Capacity | 20 liters |
| Temperature range | -30 to 100ºC |
| Refrigerant | R134a |
| Working area (dxw) | 230 x 305 mm |
| Min/Max liquid level | 85/140 mm |
| Cooling power (typical) @20ºC | 900 W |
| Cooling power (typical) @0ºC | 500 W |
| Cooling power (typical) @-10ºC | 300 W |
| Cooling power (typical) @-20ºC | 180 W |
| Cooling power (typical) @-30ºC | 40 W |
| Electrical power (max) 120V | 2280 W (50-60 Hz) |
| Electrical power (max) 230V | 2850 W (50 Hz) |
| Relay control (of refrigeration system or external device) | • |
| Weight | 42.9 kg |