Optima TC120 Advanced Heated Circulator | High Temperature Heated Circulators

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Grant Optima TC120 heated circulating baths offer precise, versatile temperature control for laboratory applications requiring heating and external circulation up to 120 °C. As a mid‑range digital heating circulator, the TC120 features a powerful integral pump, intuitive controls, and can be used with Grant stainless‑steel baths or independently with a clamp for external vessels. Ideal for media tempering, sample incubation, calibration, and temperature control of jacketed vessels, Optima TC120 systems provide reliable performance for research, clinical, teaching, and industrial laboratories

Model:

Product variants:

The TC120 heating circulator can be used in combination with any Grant stainless steel bath or with a T-CLAMP for independent use of virtually any vertical sided tank.

Cooling/heating range -15°C to 120°C
Cooling achievable with optional immersion cooler (see accessory options)
Stability ±0.05ºC / Uniformity ±0.01ºC
Tank options 5L to 38L
Powerful integral pump for external fluid circulation

Specification	Details
Dimensions (h x d x w)	333 x 172 x 141 mm
Temperature range	−15–120 ºC (below ambient requires immersion cooler)
Stability (DIN 12876) @70ºC	±0.05 ºC
Uniformity (DIN 12876) @70ºC	±0.1 ºC
Setting resolution	0.1 ºC
Display	4 digit LED
Timer function	1 minute to 99 hours 59 minutes
No. of temperature presets	3
Re-calibration points	2
Socket for external probe (TXPEP, TXSEP)	–
Programmable	–
Relays	–
Safety – over temperature	Adjustable cut-out
Fluid level – float	•
Language options	–
Alarms (can be configured to switch a relay)	High (no relay)
Heater power – 230V	1290 W
Heater power – 120V	1440 W
Electrical power – 230V	1400 W (50–60 Hz)
Electrical power – 120V	1500 W (50–60 Hz)
Height above tank rim	20 mm
Depth below tank rim	135 mm
Maximum pressure (water)	210 mbar
Maximum flow (water)	16 L/min
Pump connector 6 mm bore	Fits 9 mm inner diameter tubing
Pump connector 11 mm bore	Fits 15 mm inner diameter tubing
Weight	2.3 kg

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

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Product Manuals

T100 & TC120 Operating Manual

Technical Datasheets

Further Information

Stainless Steel Tanks

ST5

Tank stainless steel 5 litres

ST12

Tank stainless steel 12 litres

ST18

Tank stainless steel 18 litres

ST26

Tank stainless steel 26 litres

ST38

Tank stainless steel 38 litres

Immersion Coolers

C1GR

Optional accessory cooling system: 0ºC to40ºC**

C2GR

Optional accessory cooling system (tank sizes 26L and 38L only): -15ºCto 40ºC**

Accessory Notes

The cooling coil can be continuously immersed in liquids up to 100ºC with the cooler switched off and may be used to cool liquid down from 100ºC but it is not designed for continuous operation above 40ºC.

Minimum operating temperature without accessory cooling is ambient +5ºC (amb.+ 15ºC for ST5 tanks)

Hosing

HOSE100

General purpose hose kit, includes 2 x 2m general purpose insulated hosing -40 to 100˚C, assembled with ecocool/OptimaTM pump outlet plate and simple hose clips, no tools required

HOSE200

High temperature hose kit, includes 2 x 2m high temperature insulated hosing -50 to 200˚C, assembled with ecocool/OptimaTM pump outlet plate and simple hose clips, no tools required

Replacement Bridge Plates

T-BTS

Bridge plate replacement fits T Optima heating circulator models to ST5 tank

T-BTL

Bridge plate replacement fits T Optima heating circulator models to ST12, 18, 26 & 38 tanks

Clamp

T-CLAMP

Allows heating circulator to be attached to virtually any vertical sided vessel with a maximum wall thickness of 35mm forrectangular tanks, 30mm for circular tanks (300mm diameter), and capacity up to50L