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  Calibration Bath, Model 915 Parallel Tube Liquid Bath
Isotech, 915 High Performance Liquid Calibration Bath
 
Parallel Tube Calibration Baths Covering -65C to 300 C
  • Stability of 0.007 C
  • Capable of uncertainties to 0.0005C (0.5mK)
  • Capable of calibrating liquid in glass thermometers, no level adapters required
  • Variable Speed Stirring - allowing optimum performance for a wide range of viscosities
  • The Very Best Liquid bath available, used by top temperature labs worldwide

Product Code: 915
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   Product Description    Specifications    Downloads
 
  • OVERVIEW
  • SPECIFICATIONS
  • DOWNLOADS
The 915 is, no question, the finest stirred liquid parallel tube bath produced.

Typical uncertainties of measurement are less than 0.0005C over the complete temperature range of -65C to +300C.

The Isotech Parallel Tube Liquid Bath is a development of the previous 815 model and has many features which enhance its performance and enable ease of operation. It is suitable for the calibration of Liquid in Glass thermometers, Industrial Platinum Resistance thermometers, Standard Platinum Resistance Thermometers, Thermocouples and Industrial Temperature sensors. It can also be used with fixed point cells.

The temperature range of the standard 915 liquid calibration bath (915H) is 40C to 300C. When the 915 is used in conjunction with our external chiller the low temperature limit can be extended to -65C.

The 915 has a wide temperature range using silicon oils and other suitable liquids. All components in contact with the liquid are of stainless steel and are insulated with materials which are completely safe in use. The 915 used in conjunction with a chiller, utilizes the latest ozone friendly gases.

Liquids are circulated by a propeller which mixes and forces the liquid through a specially designed orifice in the rear of the two parallel tubes. A variable speed motor optimizes the flow as the viscosity of the liquid changes. Below the orifice plate liquid is circulated over a mineral insulated heater and temperature sensors which control the temperature of the bath. The liquid flows up the calibration tube and weirs over the tube into a collection tray where it returns to the rear tube for recirculation. An angled side entry tube enables a refrigeration cooling probe to be inserted in the rear of the two parallel tubes.

The temperature controller has resolution from 0.01C to 0.1C which auto scales to suit the four digit display (all digits can be read with the Cal NotePad Software). The 915 is fitted with serial communications for interfacing to a PC as standard.

With the high cost of some silicon oils the 915's seven liter capacity makes it relatively inexpensive to fill compared to many other baths.

The changing of liquid is easily enabled by using the fitted drain. The design also allows for the expansion of liquids when being raised to a particular calibration temperature.

Model 915LW 915MWE 915H
Temp Range -65C - 40C -30C - 40C 30C - 300C
Volume 98mm diameter, 400mm deep (7 litres)
or 98mm 530mm deep (option 915D)
98mm diameter, 400mm deep (7 litres)
or 98mm 530mm deep (option 915D)
98mm diameter, 400mm deep (7 litres)
or 98mm 530mm deep (option 915D)
Absolute Stability:
High Stability Controller
0.0006C (Water, 50C) 0.002C (Oil, 100C) 0.0006C (Water, 50C) 0.002C (Oil, 100C) 0.0006C (Water, 50C) 0.002C (Oil, 100C)
Standard Controller 0.004C (Water, 50C) 0.007C (oil, 100C) 0.004C (Water, 50C) 0.007C (oil, 100C) 0.004C (Water, 50C) 0.007C (oil, 100C)
Vertical Uniformity 0.0002C (Water, 50C) 0.0002C (Water, 50C) 0.0002C (Water, 50C)
Communications Includes Serial Interface, PC Cable and Software Includes Serial Interface, PC Cable and Software Includes Serial Interface, PC Cable and Software
Dimensions W 580mm
D 640mm
H 1020mm
W 580mm
D 640mm
H 1020mm
W 580mm
D 640mm
H 1020mm
Weight 90kg 75kg 45kg
Safety Compliant to CE Regulations Compliant to CE Regulations Compliant to CE Regulations
Power 1kW (excluding Chiller) 108-130 or 208-240V, 50/60Hz 1kW (excluding Chiller) 108-130 or 208-240V, 50/60Hz 1kW (excluding Chiller) 108-130 or 208-240V, 50/60Hz
Literature

micro KDatasheet micro KDatasheet micro KDatasheet
915 Datasheet 915 Manual 915 Evaluation Report


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