The portable dry well (metal block) temperature calibrator model LR-Cal QUARTZ-50 is used as temperature source and reference instrument for checking and calibrating of all kind of temperature measuring instruments, e.g. thermometer, thermostats, etc.
The dry well temperature calibrator LR-Cal QUARTZ-50 is available in two versions:
Standard version
Order-Code: QUARTZ-50
Without measuring inputs
Version with 2 measuring inputs
Order-Code: QUARTZ-50-2I
Both measuring inputs are suitable for resistance thermometer Pt 100 (2-, 3- or 4-wire) or Pt 1000, as well as for thermocouples (incl. cold junction compensation) types B, E, J, K, N, R, S and T.
The signal of connected probes can be displayed additionally in instruments display.
Extended scope of standard delivery:
Electr. cables, tools (plugs) for electr. connections
Accuracy (maximal deviation) at both measuring inputs at version "-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 |
Temperature range (at +20°C ambient temperature) | -50°C...+150°C | |
Accuracy of temperature indication | ±0.15°C | |
Resolution of temperature indication | 0.01° / 0,1° | |
Temperature units (selectable) | °C / °F / K | |
Stability of regulated temperature | ±0.02°C at 0°C | |
Heating time | from ambient temperature to +150°C: 30 min | |
Cooling time | from ambient temperature to -50°C: 60 min | |
Temperature uniformity | radial: ±0.02°C (at 0°C and 40 mm insertion depth) axial: ±0.1°C (at 0°C and 60 mm from bottom of the holes of the insert) |
|
Insertion depth | 135 mm | |
Block diameter | for inserts with 35 mm diameter | |
Power supply | 230 VAC | |
Power consumption | 300 VA | |
Interface | RS232 (USB converter available as option) | |
Housing material | Metal | |
Weight | approx. 8 kgs | |
Dimension | 350 x 160 x 365 mm |