Budenberg Middle East LLC

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techne liquid calibration baths and thermoregulators

What we offer?

Budenberg Middle East offers complete range of Techne liquid calibration baths, refrigeration bath and thermoregulators covering temperature range -40°C to +250°C.

The negative temperatures is achieved by Techne Dip and flow coolers.

Techne invented the clip-on Thermoregulator in 1948 and today the 3 models offer a highly accurate solution suitable for laboratory and calibration applications. Precise temperature control between -40°C and +250°C is available and TU models feature RS232 connection for programing via TechneWorks software.

Techne Liquid Calibration Baths are compact, accurate baths used for THERMAL CALIBRATION of temperature sensors and allow precisely controlled externally circulated liquid. Temperature control is via a thermoregulator (available separately).

Techne Refrigerated Baths provide completely self-contained chilled liquid circulating systems for THERMAL CALIBRATION – offering temperatures between -35°C and +100°C. Temperature control is via a thermoregulator (available separately).

Techne Unheated Baths are designed for use with a thermoregulator (available separately) to achieve precise stable temperatures up to +200°C. They can be used in conjunction with a Dip Cooler or Flow Cooler to achieve sub-ambient temperatures down to -35°C.

Techne Tempette® Series Thermoregulators

Tehne Thermoregulator are designed to be used with Techne unheated water baths or any other suitable laboratory vessels. Available in three “Clip On” units, they will heat, circulate and safety control the temperature of the liquid in the bath within precise limits.

TE-10D

Tempette® Thermoregulator

Features

  • Temperature range of -40°C* to 120°C
  • Excellent temperature stability: ±0.01°C at 40°C
  • 4 digit setting with a bright LED digital temperature display
  • Suitable for most routine laboratory applications
  • User adjustable over-temperature cut-out
  • Low liquid level cut-out as standard
  • Specifications to DIN 12876
Click to enlarge

Technical Specifications

Temperature selection

Temperature stability

Method of control

Temperature Sensor

Adjustable over-temperature cut-out

Low liquid level cut-out

Pump capacity

Nominal heater power

Extension below base

Cooling coil

Dimensions (mm)

Shipping weight

Digital

±0.01°C using water @ 40°C 

PID

PRT

Yes

Yes

10 litres / minute, 145 mbar

1000 W at 240V

145 mm

Option

237 L x 124 W x 260 H

3.9 kg

* Refrigeration or cooling coil required for below ambient cooling. Refer to Techne Flow and Dip Coolers and the cooling coil.

TU-20D

Tempette® Thermoregulator

Features

  • Temperature range of -40°C* to 200°C
  • Excellent temperature stability: ±0.005°C at 40°C
  • 1.8kW heater power for fast heat up
  • 4 digit setting with a bright LED digital temperature display
  • Suitable for most routine laboratory applications
  • The unit incorporates an RS232 connection
  • User adjustable over-temperature cut-out
  • Low liquid level cut-out as standard
Click to enlarge

Technical Specifications

Temperature selection

Temperature stability

Method of control

Temperature Sensor

Adjustable over-temperature cut-out

Low liquid level cut-out

PC Interface

Pump capacity

Nominal heater power

Cooling coil

Extension below base

Software package

Dimensions (mm)

Shipping weight

Digital

±0.005°C using water @ 40°C 

PID

PRT

Yes

Yes

Yes, RS232

10 litres / minute, 145 mbar

1800 W at 240V

Option

145 mm

TechneWorks®

237 L x 124 W x 260 H

3.9 kg

* Refrigeration or cooling coil required for below ambient cooling. Refer to Techne Flow and Dip Coolers and the cooling coil.

TU-20HT

Tempette® Thermoregulator

Features

  • Temperature range of -40°C* to 250°C
  • Excellent temperature stability: ±0.005°C at 40°C
  • 1.8kW heater power for fast heat up
  • 4 digit setting with a bright LED digital temperature display
  • Suitable for most routine laboratory applications
  • The unit incorporates an RS232 connection
  • User adjustable over-temperature cut-out with audible alarm fitted
  • Low liquid level cut-out as standard
Click to enlarge

Technical Specifications

Temperature selection

Temperature stability

Method of control

Temperature Sensor

Adjustable over-temperature cut-out

Low liquid level cut-out

PC Interface

Pump capacity

Nominal heater power

Cooling coil

Extension below base

Software package

Dimensions (mm)

Shipping weight

Digital

±0.005°C using water @ 40°C 

PID

PRT

Yes

Yes

Yes, RS232

N/A – Internal circulation only

1800 W at 240V

Option

145 mm

TechneWorks®

237 L x 124 W x 260 H

3.9 kg

  • * Refrigeration or cooling coil required for below ambient cooling. Refer to Techne Flow and Dip Coolers and the cooling coil.
  • The TU-20HT can only be used with Dip Coolers for achieving temperatures below ambient.
  • The TechneWorks software package is available for the TU-20 thermoregulators free of charge from www.techne.com.

TechneWorks® PC Software

Techne are pleased to announce the introduction of our FREE OF CHARGE, easy to use control software for many of our RS232 compatible products. This software has been designed to supersede the existing Calsoft and Thermsoft software packages.

It will allow customers to carry out all the tasks previously available on Calsoft and Thermsoft plus many new options on one new package. This software is fully compatible with the current Techne TU-20D and TU-20HT thermoregulators and older discontinued models such as the TU-20C.

Sofware Compatible units are as follows:-

Dri-Block Calibrators – Tecal 140F, Tecal425F and Tecal 650F
Thermoregulators – TU-20D and TU-20HT
Precision Digital Thermometer – Accu-Temp with RS-232 communication option

TechneWorks® software allows connection to a range of Precision Thermometers such as the Techne Accu-Temp, ASL model F250, Accu-TempII and the Cropico 3000 series.

This software enables you to calibrate thermometers and sensors and to then generate calibration certificates using a Techne Liquid bath or Dry block as a temperature source.

The Thermoregulator or Dri-Block’s display can act as the reference temperature or connect to a range of external thermometers.

 

Techne LCB Series Liquid Calibration Baths

The Techne® liquid calibration bath (LCB) series offer compact, accurate and reliable liquid baths which can be used for external circulation or temperature calibration of thermal sensors.

Please note:  Thermoregulator temperature control units are purchased separately.

Features

  • -35°C to 250°C
  • Three different capacities available; 5, 7 or 12 litres
  • Temperature stability; ±0.005°C depending on choice of control unit
  • Fully insulated bath for excellent heat retention
  • Digital temperature selection, depending on choice of control unit
  • Includes cover, lid and bridging plate
Click to enlarge

When temperature calibration is required the compact liquid baths offer excellent stability over the entire temperature range. The LCBs can be also be used for external circulation to maintain temperatures of samples in viscometers, photometers, refractometers, fermenters and other reaction vessels.

All models of LCB offer high pump performance and exceptional thermal stability from -35°C to 250°C. The baths are fully insulated on all sides and base and are fitted with a cooling coil for connection to a cold water supply for use at temperatures around ambient.

The minimum temperature achievable is -35°C when a Flow Cooler is added to the system.

Each bath is supplied complete with lid, drain tap, carry handles, a cooling coil (with bung) and hole to position a certified sensor. The TechneWorks software package is available for all the three TU-20 thermoregulators free of charge from www.techne.com.

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Technical Specifications

Parameter ⇓

Dimensions L x W x H (mm)​

Bath opening (mm)

Working depth (mm)

Shipping weight

LCB-5 (5 litre)

351 x 260 x 183

140 x 140

125

5kg

LCB-7 (7 litre)

351 x 260 x 233

140 x 140

175

9kg

LCB-12 (12 litre)

351 x 260 x 358

140 x 140

300

9kg

Liquid Calibration Bath​ ⇒

Thermoregulator ⇒

Bath Capacity

Operating temperature range 1

Working temperature range 2

Stability at -35°C (short term*)

Stability at 0°C (short term*)

Stability at 50°C (short term*)

Stability at 100°C (short term*)

Stability at 200°C (short term*)

Stability at 250°C (short term*)

Uniformity (full range**)

Accuracy (full range)

LCB-5, LCB-7, LCB-12​

/ TU-20D

5 / 7 / 12 litres

-35°C to +200°C

25°C to +200°C

±0.015°C

±0.020°C

±0.005°C

±0.015°C

±0.024°C

Not Applicable

0.008°C

±0.5°C

LCB-5, LCB-7, LCB-12​

/ TU-20HT

5 / 7 / 12 litres​

ambient +10°C to +250°C

30°C to +200°C

Not applicable

Not applicable

±0.005°C

±0.015°C

±0.024°C

±0.040°C

0.008°C

±0.5°C

Please Note:

  with an FC-500 flow cooler                    ambient of 20°C

*   Short term stability is over a 15 minutes period, for 1 hour double the values shown

**   Two SPRTs 3″ apart in the working area of bath

#   For Liquid Calibration Baths to operate, a thermoregulator is required. The thermoregulator must be purchased separately.

#  LCB baths fitted with a TU-20HT thermoregulators are not suitable for use with a flow cooler. Dip Coolers are suitable for use with TU-20HT thermoregulators.

Techne Unheated Baths

A comprehensive range of temperature controlled water baths are available from Techne. Fifteen different water bath combinations allow the use of accurate temperature from -40°C up to 200°C; ensuring a solution for most laboratory applications.

Designed to be used with a clip-on Tempette or Tempunit® thermoregulator, these baths, available in five capacities, incorporate carrying handles for added safety. All baths have stoved enamelled steel outer cases and are supplied with bridge mounting plate to hold the thermoregulator.

Four bath capacities:   8, 12, 18 and 26 litre

Features

  • Stainless steel construction
  • Seam-free and corrosion resistant stainless steel inners for easy cleaning
  • Rugged splash-proof case
  • Integrated carrying handle
  • Maximum working temperature of 200°C
  • All models come with a 3 year warranty as standard

For bath capacity:   48 litre

Features

  • 48 litre capacity
  • Welded construction
  • All submerged parts are made from stainless steel
  • Rugged splash-proof case
  • Maximum working temperature of 200°C
  • All models come with a 3 year warranty as standard
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Technical Specifications

Capacity litres ⇒

Dimensions - Length (mm)

Dimensions - Width (mm)

Dimensions - Height (mm)

Internal Dimension - Length (mm)

Internal Dimension - Width (mm)

Internal Dimension - Height (mm)

Top of the bath to Liquid Level Max depth (mm)

Working length to thermoregulator

Working depth - max/min(mm)

Working capacity max/min (litres)

8

265

325

172

240

300

150

65

115mm

130/100

8.0/6.0

12

354

325

172

329

300

150

65

205mm

130/100

11.6/8.4

18

530

325

172

505

300

150

65

380mm

130/100

18.0/13.2

26

530

325

222

505

300

200

65

380mm

180/150

26.0/20.5

48

594

365

298

559

330

274

65

430mm

255/224

48.5/42.5

For temperatures up to 250°C, we recommend the use of LCB series Liquid Calibration Baths.

LCB baths fitted with a TU-20HT thermoregulators are not suitable for use with a flow cooler. Dip Coolers are suitable for use with TU-20HT thermoregulators.

Optional Liquid Bath Accessories

LCB Probe Holder

The new FBCAL7PH LCB probe holder is an accessory designed to allow multiple probe positioning and calibration within the LCB. It can be used for 5, 7 and 12 litre baths and acts as a lid as well as a probe holder. The Probe holder has spare mounting studs to suit all 3 bath models. The probe holder has holes for 10 off probes to Ø12.5mm and also 8 off probes to Ø6.5mm.

High Temperature Cooling Coil

This accessory is designed for assisting in cooling a hot bath more rapidly by flowing tap water or chilled liquid through it, this simple coil tube attached to the base of all Techne thermoregulators with ease. The water being circulated through the coil should be at least 5°C cooler than the set bath temperature.Cooling. It fits to any TU-20 thermoregulator unit.

Flat lids

Manufactured of stainless steel and available to fit all sizes of temperature controlled bath to help prevent evaporation losses. Gabled lids provide extra working headroom within the bath.

Gabled lids

Manufactured of stainless steel and available to fit all sizes of temperature controlled bath to help prevent evaporation losses. Gabled lids provide extra working headroom within the bath.

Adjustable Trays

Supported by a ball chain and clip, the stainless steel trays can be used to alter the depth of the bath.

Polypropylene Spheres

A ball blanket is an effective way of reducing evaporation and loss of heat from a water bath. It acts as effectively as a lid, whilst providing instant access to the bath. The 25mm diameter spheres are supplied in packs of 250.

Choice of Liquids for all Techne Liquid Baths

High Temperature Calibration Bath Fluid

This high temperature fluid offers industry a non-toxic, versatile bath fluid that has proven to be cost effective and thermally stable at temperatures up to +315°C. This fluid has demonstrated excellent performance over a wide range of temperature without compromising economics or system integrity. Unlike the less stable mineral oil based fluid, our high temperature fluid provides the user with the confidence and reliability without the premium price of other fluids. Recommended temperature range +60 to +250°C.

Benefits and features

  • Low viscosity
  • Improves bath uniformity and stability
  • Enhanced heat-up and cool down rates
  • Lower cost than glycol and silicone oil fluids
  • Safe and non-toxic
  • Convenient 18L (5 gallon) container

Notes

  • Not for long term (more than a few hours) continuous use above 100°C because excessive oxidation will occur.
  • As with most high temperature fluids, a fume hood is recommended for operating temperatures above 150°C.
  • Should only be used with the following plastics; ABS, Epoxy, Acetal, PTFE, Viton, Kalrez, Chemraz, Fiberglass, Graphites, Fluroelastimers.
  • For other plastic types contact Techne for specific recommendations.

Technical Information

Typical Properties of High Temperature bath fluid P/N FHTFHI

Appearance

Boiling point

Composition

Fire point

Flash point

Auto ignition temperature

Specific heat

Viscocity

Min pump ability limit

Odour

Volumetric Expansion

Thermal conductivity

Recommended use range

Shelf life (sealed)

Warning

Clear, Light brown, oily liquid

Greater than 330°C or 626°F

Synthetic organic hydrocarbon based liquid

210°C or 410°F

180°C or 356°F

210°C or 410°F

0.50 Btu (lb) (°F) @ 50°C (122°F)

12cP @ 50°C

0°C or 32°F

Bland

0°C to 300°C 30.5

@ 20°C or 68°F: 0.135 W per m.K (0.078 Btu per ft. hr. °F)

60°C to 250°C (122°F to 482°F)

Several years

May ignite if exposed to hot surfaces, sparks, flames

Please note

There is no absolute number of times Techne oils can be heated and cooled but 2 things must be considered.

  • If the bath cycles fluid between ambient and maximum recommended temperature, then over time the fluid may degrade. The amount of time this takes can vary from bath to bath. So if the user identifies changes in colour, viscosity and temperature efficiency to the fluid this indicates the fluid is ready to be changed.
  • If the fluid is being cooled to sub-zero temperatures, moisture from the atmosphere can condense into the fluid and crystalize when the fluid is being cooled down. The customer will see the fluid turn a slightly milky white colour due to ice crystals forming.

RB Series

Refrigerated baths

These baths are a complete refrigerated circulating system for open or closed applications for temperature ranges from -35°C to 150°C. Each bath is supplied with a lid and bridging plate.

There are three bath capacities: 7 litre (RB-5A), 12 litre (RB-12A) and 22 litre (RB-22A). Temperature control is via one of the four thermoregulators and together they offer a choice of 9 different bath combinations.

 Features

  • Circulating bath with built in refrigeration
  • Temperature range from -35°C to 150°C
  • Three different capacities of refrigerated bath; 7, 12 or 22 litre
  • The combination of 3 circulating baths and 4 thermoregulators provides 12 options
Click to enlarge

Technical Specifications

Cooling (at 20°C ambient) ⇓

Minimum achievable temperature *

Cooling capacity at 20°C

Cooling capacity at 0°C

Cooling capacity at -10°C

Overall size - L x W x H (mm) **

Liquid surface to top of bath - max

Internal dimensions - L x W x H (mm)

Working length to thermoregulator

Working depth - max/min (mm)

Working capacity - max/min (litres)

Shipping weight ***

RB-5A

-20°C

145W

145W

110W

430 x 250 x 566

65mm

192 x 151 x 200

224mm

180/135

7.0/5.5

31 kg

RB-12A

-35°C

240W

240W

230W

430 x 370 x 610

65mm

208 x 300 x 150

224mm

130/85

11.6/9.6

53 kg

RB-22A

-30°C

240W

240W

220W

430 x 395 x 565

65mm

360 x 295 x 220

250mm

200/160

22/18

61 kg

  *      Internal coolant (not user accessible)

  • For RB-5A (-20 degrees C), use a mixture of 50% water and 50% antifreeze to achieve -20°C
  • For RB-12A (-35 degrees C), use a mixture of 40% water, 40% antifreeze and 20% alcohol to achieve -35°C
  • For RB-22A (-30 degrees C), use a mixture of 40% water, 40% antifreeze and 20% alcohol to achieve -30°C

  **     Overall size with thermoregulator

***   Add thermoregulator and bath shipping weight to get shipping weight of the complete bath system

BATH ACCESSORIES

Dip & Flow Coolers and Chiller Unit

Dip and Flow Coolers

The Techne Dip and Flow Coolers work in conjunction with a Techne thermoregulators. The bath liquid flows through the unit which continually extracts heat from the bath fluid by means of the heat exchanger which is built into the unit.

The cooling head of the Techne Dip Cooler fits neatly and unobtrusively into the corner of the bath and can be secured with a specially designed mounting bracket (supplied). If cooling can be achieved by using cold tap water, a dip cooler is recommended as it conserves water and is easier and more convenient to use.

Techne Dip and Flow Coolers are designed for use when ambient temperatures down to -35°C are required.

Features

  • Two models are available
  • Compact refrigeration units for achieving temperatures down to -35°C * (using Techne low-temp oil)
  • Cooling head of the RU Series Dip Cooler fits neatly into the corner of a Techne liquid baths
  • Designed for use with Techne liquid baths above 5 litre capacity
Click to enlarge

Technical Specifications

Cooling (at 20°C ambient) ⇓

Minimum achievable temperature

Cooling capacity @ 20°C (Watts)

Cooling capacity @ 0°C (Watts)

Cooling capacity @ -10°C (Watts)

Internal capacity (ml)

Nominal Dimensions

(excluding handles / coil)​ overall (mm)

Width

Length

Height

Coil dimensions (mm) Length x Diameter

Hose length to coil (mm)

Shipping weight

FC-200

-20°C

140W

140W

110W

200ml

FC-200

235

420

300

N/A

N/A​

19

FC-500

-35°C

210W

210W

200W

200ml

FC-500

370

430

325

N/A

N/A​

39

RU-200

-20°C

145W

145W

110W

N/A

RU-200

235

420

300

85 x 75

1250

19

RU-500

-35°C

240W

240W

230W

N/A

RU-500

370

430

325

85 x 75

1250

39

*  At an ambient of 20°C, using a mixture of 40% water. 40% antifreeze and 20% ethanol.

The CH-5 Chiller Unit

The CH-5 Unit is designed for use in conjunction with the TECAL 140 Calibrator to achieve calibration temperatures down to -40°C. The unit provides a Chilled water supply which is pumped through the Heatsinks on the Tecal 140 to allow the Tecal to reach -40°C.

 In the normal ambient temperatures of up to 20°C the minimum temperature obtainable with the Tecal 140 is 45°C below ambient; by artificially cooling the heatsink of the units with water from the chiller -40°C can be obtained.

The unit is designed to run on distilled or deionised water.

The CH-5 can also be used to pass chilled water through the cooling coil on the Liquid Calibration Baths (LCB) and Cooling Probe (FDB00CP) giving rapid cooling or a minimum temperature of +10°C.

Technical Specifications

Temperature ⇓

Working temperature range

Cooling capacity

Temperature control

Electrical control

Dimensions (External) ⇓

Length x Width x Height (including pump)

Bath Size ⇓

Length x Width x Depth

Bath capacity

Pump capacity

Pump head

Net weight

Data

4°C to 15°C

400W

Thermostat on/off

Manual

mm

430 x 235 x 524

mm

300 x 140 x 150

5 litres

6 metres with water

20 litres/minute

25.5 kg

Click to enlarge