The cryostatic temperature calibration bath LR-Cal BK 40-M is an instrument used to calibrate transducers, RTDs and temperature measuring sensors in the laboratory. The possibility to generate positive and negative temperature ramps makes it suitable for use in calibrating and testing thermostats.
The bath consists of a stainless stell tank with a capacity of 10 litres. The useful height is 340 mm and diameter 85 mm. The bath is equipped with a stainless steel mixer with electrical motor power, a safety thermostat, drain cock and overflow drain pipe.
The LR-Cal BK 40-M is equipped with a PID microprocessor controller with a resolution up to 0.01°C and allows the setting of the standard temperature unit in °C, °F and K. Programming of ascent/descent ramps and storage of the thermostat's operative temperature.
Furthermore, the LR-Cal BK 40-M is equipped with a RS232 serial interface. It can operate in automatic mode conneced to the PC by means of the optional LR-Cal AQ2Sp software which enables to carry out probe calibrations and cyclical life tests. The Test results can be stored and printed, so they are easily traceable with ISO 9000 standards.
Optional the LR-Cal BK 40-M can be equipped with a fluid level adapter. The fluid level adapter slides directly into the test wells of the instrument is desibned for customers that need to calibrate glass thermometers. The fluid level adapter creates a positive bath fluid surface. The bath fluid is pumped up through the test well to the surface of the bath and kept there. In relation to the liquid viscosity the operator can regulate the level rotating the adapter tube. The clear adapter cover protects the bath fluid from ambient temperature effects for better bath stability. The cover can be drilled for any size probe.
The cryostatic temperature calibration bath LR-Cal BK 40-M is available in 4 different versions:
Versions with dual input for Pt 100 and TC
Order-Code: BK40-M-2I (without fluid level adapter) and BK40-M-TR-2I (with fluid level adapter)
Two inputs for Pt 100 and Thermocouples, programmable:
• Pt 100 IEC 3/4-wire, Range -100...+700°C, Pt 1000
• Thermocouples, max. range 0...1300°C
Extended scope of delivery: set of electr. leads, set of screw terminals
Accuracies of measuring inputs of "-2I" versions see below.
|Accuracy (maximal deviation) at both measuring inputs at versions "-2I":|
|Pt 100 or Pt 1000||at -40°C:||±0.09°C||at 0°C:||±0.08°C||at +150°C:||±0,11°C||at +300°C:||±0.14°C|
|Thermocouple type B||at +950°C:||±0.97°C||at +1050°C:||±1.03°C||at +1200°C:||±1.12°C|
|Thermocouple type E||at -40°C:||±0.42°C||at 0°C:||±0.40°C||at +350°C:||±0.61°C|
|Thermocouple type J||at +200°C:||±0.52°C||at +450°C:||±0.67°C||at +700°C:||±0.82°C|
|Thermocouples types K, N, R und S||at +400°C:||±0.64°C||at +700°C:||±0.82°C||at +1000°C:||±1.00°C|
|Thermocouple typ T||at -40°C:||±0.42°C||at 0°C:||±0.40°C||at +350°C:||±0.61°C|
Indicated temperature ranges are valid at ambiemt temperature +20°C. The stated accuracy is based on ambient temperature +23°C and is guaranteed for 1 year.