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Heated Circulators

The Grant Optima heating circulating range consists of four models - two general purpose: T100 and TC120 and two advanced models: TX150 and TXF200.

Combine any of the four models with a Grant stainless steel or plastic tank or with a T-Clamp to attach to virtually any vertical sided tank. A cost-effective range of multi-purpose systems combining Grants legendary quality and reliability.

T100 & TC120 General purpose models

  • Cooling/heating range 0°C to 100°C (T100) / -20°C to 120°C (TC120)
  • Simple, intuative user interface: dial and two function buttons
  • Clear, bright 4 digit LED display
  • Visual alarm and low-liquid detection
  • 2 point user calibration
  • 3 temperature presets

TX150 & TXF200 Advanced models

  • Cooling/heating range -50°C to 150°C (TX150) -50°C to 200°C (TXF200)
  • Icon driven home screen via dial and two function buttons
  • Large, bright full colour display
  • USB/RS232 interface for programming or data logging
  • External probe socket
  • 5 point user calibration
  • Multi language options (EN,FR,DE,IT,ES)



  • Clinical, Microbiology and Pathology labs - media tempering, thawing & incubating samples
  • University research - temperature control of spectrophotometers & refractometers and jacketed vessels
  • Industrial labs - temperature probe calibration, water analysis, QC testing product, petrochemical testing, material testing, milk sample testing







Dimensions (h x d x w)333mm x 172mm x 120mm333mm x 172mm x 141mm342mm x 172mm x 141mm342mm x 172mm x 141mm
Stability (DIN 12876) @70ºC0.05±ºC0.05±ºC0.01±ºC0.01±ºC
Uniformity (DIN 12876) @70ºC0.1±ºC0.1±ºC0.05 ±ºC0.05±ºC
Setting resolution0.1ºC0.1ºC0.1ºC (0.01 with Labwise®)0.1ºC (0.01 with Labwise®)
Display4 digit LED4 digit LEDFull colour QVGA TFTFull colour QVGA TFT
Timer function-1 minutes to 99 hours 59 minutes1 minutes to 99 hours 59 minutes1 minutes to 99 hours 59 minutes
No. of temperature presets3333
Re-calibration points2255
Socket for external probe (TXPEP, TXSEP)--
Communications interface--USB, RS232USB, RS232
Programmable--Remote via PC/laptop 1 program/30Direct via user interface or remote via PC/ laptop 10 programs/ 100 segments
Safety - over temperatureFixedAdjustable cut-outAdjustable cut-outAdjustable cut-out
Fluid level - float
Language options--EN, FR, DE, IT, ESEN, FR, DE, IT, ES
Alarms (can be configured to switch a relay)-High (no relay)High and lowHigh and low
Heater power - 230V1290W1290W1840W1840W
Heater power - 120V1440W1440W1445W1445W
Electrical power - 230V1400 (50-60Hz)1400 (50-60Hz)2000 (50-60Hz)2000 (50-60Hz)
Electrical power - 120V1500 (50-60Hz)1500 (50-60Hz)1500 (50-60Hz)1500 (50-60Hz)
Height above tank rim200mm20mm200mm200mm
Depth below tank rim135mm135mm145mm145mm
Maximum pressure (water)-210mbar310mbar530mbar
Maximum flow (water)-16L/min18L/min22L/min (adjustable flow rate)
Pump connector-Fits 9mm inner diameter tubingFits 9mm inner diameter tubingFits 9mm inner diameter tubing
Pump connector-Fits 15mm inner diameter tubingFits 15mm inner diameter tubingFits 15mm inner diameter tubing

Products in range

 Model NumberUnit Size
T100333mm x 172mm x 120mm
TC120333mm x 172mm x 141mm
TX150342mm x 172mm x 141mm
TXF200342mm x 172mm x 141mm

Related products

Optima T100 Heated Circulating Bath
Optima TC120 Heated Circulating Bath
Optima TX150 Heated Circulating Bath
Optima TXF200 Heated Circulating Bath