Grant GD120 Digitally Controlled Stirred Water Bath and Circulator

The Grant GD120 is a digitally controlled stirred water bath and circulator designed for laboratory applications, featuring:

• Immersion Thermostat with Intelligent Control Optimization (ICO): Adaptive PID control for exceptionally stable temperature regulation.
• Integral Pump: Built-in circulation pump with max flow rate of 17 L/min, supporting sample immersion and external fluid circulation.
• User Interface: Digital display, rotor plus two-key control, timer function, and visual/audible alarms for critical condition alerts.
• Preset Temperature Control: One adjustable operating setpoint plus three preset temperature options for rapid switching.
• Safety Features: Float-switch low liquid protection and adjustable over-temperature cut-out enhance protection for samples and users.
• Liquid Type Selection: Automatic adjustment of heater power and temperature parameters based on liquid type (water, oil, glycol).

Temperature Range & Accuracy:

• Plastic Tanks (P-series): Approximately ambient +5 °C to ~99 °C
• Stainless Steel Tanks (S-series): –15 °C to ~120 °C
• Temperature Stability: ±0.02 °C for high precision control

Technical Notes:

• Multiple tank sizes available (Plastic: P5, P12, P18; Stainless Steel: S5, S12, S18, S26, S38) to suit varying capacity needs
• The GD120 series is considered obsolete but remains operational and reliable
• Manual covers operation, calibration, safety, and maintenance; shared documentation with GD100 series

Product Positioning:

• Part of the Grant Optima range, positioned between GD100 (max 100 °C) and higher-spec models GR150 (150 °C) and GP200 (200 °C).