The Grant Optima™ range consists of both general purpose and advanced performance thermostats combined with premium stainless steel baths (drain tap on 12, 18, 26 and 38 litre baths). Stirred circulation within the bath ensures excellent temperature stability and uniformity. Units can also be used with accessory C1G and C2G immersion coolers for operation below ambient temperatures.

• T100 temperature range: Ambient 5 to 100 °C. Settable range 0 to 100 °C (operation below ambient requires cooling accessory)
• TC120 temperature range: Ambient 5 to 120 °C. Settable range −20 to +120 °C (operation below ambient requires cooling accessory)
• Pump for external circulation, an audible and visual alarm and adjustable over-temperature cut-out (TC120 only)
• 12 litre models and above have a dual-position mounting plate so the Optima™ can be orientated on the tank in two directions - ideal for optimising bench space
• Stability ±0,05 °C at 70 °C

General purpose thermostats T100 and TC120: Digital microprocessor-controlled T100 and TC120 thermostats feature an easy to use rotary dial and two function keys for quick temperature setting and menu navigation. Units feature a bright, easy to view 4 digit display, 3 programmable temperature presets, low liquid protection, fixed over-temperature cut-out, visual alarm, countdown timer and user-calibration facility for optimal accuracy.

Advanced thermostats TX150 and TXF200: TX150 and TXF200 thermostats feature a full colour QVGA TFT screen displaying actual and set temperature plus clear status icons. The QVGA TFT screen, in combination with the easy to use dial and function keys, allows rapid navigation through the intuitive menu system. Both units have an RS232 and USB interface and can be programmed via remote PC or laptop using Grant’s versatile Labwise™ software (software optionally available). Additional features include countdown timer, adjustable over-temperature cut-out, visual, audible and programmable high and low temperature alarms. The TX150 has the capacity to store 1 program with 30 segments. The TXF200 can also be programmed via the user interface and can store up to 10 programs containing 100 segments. The programming interface includes set target temperature with a choice of time to target temperature or temperature ramp speed and an additional programmable relay for on/off control of ancillary equipment or refrigeration units.

TX150 temperature range: Ambient 5 to 150 °C. Settable range −50 to +150 °C (operation below ambient requires cooling accessory)
TXF200 temperature range: Ambient 5 to 200 °C. Settable range −50 to +200 °C (operation below ambient requires cooling accessory)
Stability: ±0,01 °C at 70 °C
External PT1000 temperature probe socket
Offset adjustment for isothermal performance
Five-point user calibration of internal and external probes

Maximum pump capacities:
TC120 16 L/min, 210 mbar
TX150 18 L/min, 310 mbar
TXF200 22 L/min, 530 mbar variable speed