Techne Temperature Calibration Equipment

• FB08 Series Fluidised baths
• TC-8D Electronic Control Unit
• LCB-7+12 Series Calibration Baths
• TU-20C Digital Immersion Circulator
• RB-5* Refrigerated Baths
• ESRB-11* Refrigerated Baths
• TU-20D Analog Immersion Circulator
• Model 425S\H Multiwell Portable Block Calibrator
• Tecal 650 Programable Block High Temp Calibrator
  Tecal 140H Programmable Block Low Temp. Calibrators
• Tecal 140S Low Temp. Portable Block Calibrator
• SB Series Fluidized Baths
• Portable Thermoregulators
  
  

Precision FB08 Series Fluidised Baths
Download the Alumina MSDS in pdf format

FB08

FB08C

Description and operation

The FB08 is a rectangular bench standing unit. The controls for temperature and fluidizing air flow are mounted on a recessed panel on the front of the unit, together with on-off switches for the power supply and the dust extractor and indicators for various functions. Insulated and vented the outer case is safe to touch even at the maximum operating temperature. The inner container is filled from the top with alumina. When fluidised, this medium is heated by four immersion heaters close to the container wall with the control thermocouple between the heaters. The internal components are protected by an air cutout switch that disables heat in the event the fluidizing air is lost.
    Clean, dry air from an external source passes through two filters and regulators, to reduce the pressure for the cyclone extraction system and fluidization. Fluidizing air passes through a flow meter and then to the plenum chamber from which it is distributed evenly around the inner container. Dust extraction is by means of ambient air drawn from around the probe holder/plate and then through a cyclone to the exhaust filter. Alumina dust removed from the opening of the bath is deposited into the front mounted collection jar where it can be removed and dumped back into the bath.

In operation, set the fluidizing air by means of a combined control valve and flow meter. (Note: air adjustment is automatic with the FB08C) Fluidizing air requirements are inverse of the bath temperature. i.e- lower bath temperatures require more air for proper fluidization. The bath temperature is set by means of a front panel mounted PID controller. Sensors for calibration should be suspended as close as possible to the center of the bath. When calibrating sensors the probe holder is recommended as it is custom built with the dimensions of the sensors you will be calibrating.

Dead-Bed Operation

A major of feature of the FB08 series is calibration using the Dead-bed method. During Dead-bed the power is shut off and 30 seconds later the fluidizing and extraction air are turned off. This causes the alumina to collapse around your work and provides a dense, high thermal insulation environment. For a period of three to ten minutes thermal equilibrium occurs and stability of better then ±0.01°C is observed.

Models to choose from:

The FB08 is offered in three different models. The standard FB08 operates from +50 to 700°C, in addition to the standard unit the FB08C offers automatic fluidizing air control and is capable of remote PC operation. When connected to your liquid nitrogen supply the FB08LT operates between -100 and +200°C. The single probe plate and ring are included with the baths. You will also receive one 35lb. charge of alumina to get started.

Specifications

Accessories

TC-8D Electronic Control Unit -- $1,552

Laboratory Fluidised Baths

Five standard models offer a wide choice of bath sizes and temperature ranges.

Specifications:

Ordering Information:

LCB-7+12 Series Calibration Baths -- $1,243

General Features:

1) With an FC-500 flow cooler; 2) ambient of 20°C

Ordering Information:

**For below ambient temperatures inquire about Techne's flow coolers.**

The LCB-12 bath has a thermometer hole to take a reference thermometer, drain tap, lid, carrying handles and insulation on sides and base. A built in cooling coil is included. The 12 inch immersion depth of the LCB-12 makes it an excellent choice for use in the calibration of  liquid in glass thermometers, RTD's, thermocouples and fluid filled bulbs. Controllers incorporate the safety features of an over-temperature cut-out and low liquid level device. The system offers a display accuracy of ±1.0°C, but if you require higher accuracy take a look at one of the thermometer systems we offer. 
We recommend the use of our bath liquids to get the best performance at a wider range of operating temperatures.       

General features:

1) With an FC-500 flow cooler; 2) ambient of 20°C

Ordering Information:

**For below ambient temperatures inquire about Techne's flow coolers.**

TU-16D Digital Immersion Circulator -- Replaced by TU-20C

Techne® Thermoregulator Specifications

Ordering Information:

ESRB-7* Refrigerated Baths -- replaced by RB-5

REFRIGERATED BATHS
Download the ESRB11 manual (1.0mb pdf)

RB-5A /ESRB-11 There are two different models of refrigerated bath to choose from. These baths are a complete refrigerated circulating system for open or closed applications for temperature ranges from -25°C to 100°C*. Two bath capacities either 7 liters (RB-5A) or 12 litres (ESRB-11).  By combining  the RB5A or ESRB-11 with one of our Thermoregulators, you are offered eight different choices to match your specifications and budget. For optimum bath performance Techne® recommends its bath liquids. * Maximum operating temperature that the refrigeration coil can be exposed to is 100°C.

SPECIFICATIONS - Refrigeration Units
	RB-5A	ESRB-11
Minimum achievable temperature (°C)	-20	-25
***Cooling capacity at 0°C (W)	145	235
Cooling capacity at 20°C (W)	145	371
Cooling capacity at -10°C (W)	110	154
Dimensions
*Overall size L x W x H in.	16.9x9.2x17.5	20x15.2x25
Liquid surface to top of bath - max (in.)	2.5	2.5
Working area - L x W x H in.	7.5x5.9x7.8	7.7x11.5x5.9
Working depth - Max/Min (in.)	7.0/5.3	5.1/3.9
Working capacity - Max/Min (liters)	7.0/5.5	11.6/9.6
**Shipping weight (lb)	68	99
Catalog number  (120 volt)	1071400	1071300

*Overall size includes a mounted TE10 or TU20 model Thermoregulator.
**Add controller and bath shipping weight o get shipping weight of complete bath system.
***Using Techne® Catalog #7012602 bath fluid

ESRB-11* Refrigerated Baths -- Replaced 

REFRIGERATED BATHS

RB-5A/ESRB-11 There are two different models of refrigerated bath to choose from. These baths are a complete refrigerated circulating system for open or closed applications for temperature ranges from -25°C to 100°C*. Two bath capacities either 7 liters (RB-5A) or 12 litres (ESRB-11).  By combining  the RB5A or ESRB-11 with one of our Thermoregulators, you are offered eight different choices to match your specifications and budget. For optimum bath performance Techne recommends its bath liquids. * Maximum operating temperature that the refrigeration coil can be exposed to is 100°C.

TU-16A Analog Immersion Circulator -- Replaced by TU-20D

Model DB-300AF Multiwell Portable Block Calibrator -- Replaced by 425S

Model DB-35L Low Temp. Portable Block Calibrator -- Replaced by Tecal 140S

* Overall size 6.7 x 11.0 x 10.2"

* Stability: ±0.05°C

* Display accuracy: ±0.5°C

* Display resolution: 0.1š

* Cools to a minimum temperature in 20 minutes

* Carrying case included

* Immersion depth for probes: 4" (single well)

* Deep version also available: 8" immersion (DB-35LD)

* Switchable main power 110V or 220V or battery operation

Tecal 140 S/H Low Temperature Range
Block Calibrator

Click here to learn how we heat and cool the Tecal 140.

Need a lower operating temperature? Connect a cold water supply to the 
Tecal 140 heatsink and achieve a temperature 45 degrees C. below the water temperature.

Tecal 425 S/H Mid Temperature Range
Block Calibrator