Dry well Temperature calibrator
Model LR-Cal QUARTZ-50
Range -50°C...+150°C
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.
- Temperature range -50...+150°C (at +20°C ambient temperature)
- Ramp function
- Thermostat tests
- Computer assisted calibration via computer interface (PC software available)
- Block inserts with different drillings for items under test available
- Black Body Kit for calibration of non-contact measuring infrared thermometer
- Incl. factory certificate of accuracy and stability
Instrument versions
LR-Cal QUARTZ-50 Instrument versions
The dry well temperature calibrator LR-Cal QUARTZ-50 is available in two versions:
Version LR-Cal QUARTZ-50
Standard version
Order-Code: QUARTZ-50
Without measuring inputs
Version LR-Cal QUARTZ-50-2I
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 | ||
Specification
LR-Cal QUARTZ-50 Specification
| 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 | |
Scope of delivery + Accessories
LR-Cal QUARTZ-50 Scope of delivery + Accessories
Scope of standard delivery:
- Portable metal dry well temperature calibrator model LR-Cal QUARTZ-50 or LR-Cal QUARTZ-50-2I
- Spare fuse kit
- Cable for power supply
- Cable for thermostat tests
- 1 block insert with 6 holes (drillings):
3.5 + 4.5 + 5.5 + 6.5 + 8.5 + 10.5 mm diameter) - Tweezer for the extraction of block inserts
- Operating manual
- Test report (accuracy and performance)
- Only at version LR-Cal QUARTZ-50-2I:
Red and black cables with banana plugs for both measuring inputs
Optional Accessories:
| Order-Code | Description | Image |
| BB-INSERT-01-QUARTZ | Upgrade kit wich black body. High emission grade. For checking and calibration of touchless measuring infrared thermometers. Block insert, inside with graphit coating. Incl. high accuracy reference thermometer PT 100 (4-wire) |
|
| REF-T-SENSOR-PT | External high accuracy reference probe Pt 100 Range -100...+670°C, TK: 0,003850 1/K; stability <40 mK, Diameter 6.35 mm, length 450 mm; protection tube made in Inconel 4-wire connection, incl. 2 m PTFE cable |
|
| DKD-T-KAL-PT | DAkkS certificate of calibration for REF-T-SENSOR-PT | |
| RTAB-T-KAL-PT | Calculation of constants for REF-T-SENSOR-PT | |
| RTAB2-T-KAL-PT | Calculation of constants with table of values for REF-T-SENSOR-PT | |
| 507.0.999.0008.0 | Well insert: blank (without holes/drillings) | |
| 507.0.999.0010.0 | Well insert with 2 drillings: 6.5 + 19.5 mm diam. | |
| INS-SPEC-633-3 | Well insert with 1...3 drillings to customer request (diameter 3.5...20 mm) | |
| INS-SPEC-633-6 | Well insert with 4...6 drillings to customer request (diameter 3.5...20 mm) | |
| INS-SPEC-633-10 | Well insert with 7...10 drillings to customer request (diameter 3.5...20 mm) | |
| TEMPKAL-TASCHE | Soft shoulder bag |  |
| TEMPKAL-KOFFER | Aluminium case |  |
| 599.0.000.0003.0 | PC-Software LR-Cal AQ2sp incl. RS232-interface lead Temperatur sensor calibration: Automatic calibration routine for all type of temperature sensors with advanced features such reference sensor stabilization, time-calibration data are automatically populated and stored for printing report. This procedure can also be ran in manual mode to allow the operator to manually enter the data. This is particular useful when calibrating temperature device such as digital thermometer or analogue thermometers. Stress test: Simply set MAX and MIN value and the software will run an automatic stress test on single sensor or a batch. Advance thermostat calibration: Simply set the open and close temperature limits, type of thermostat, typ of test and the software will automatically run the test. Note: USB converter available as option |
 |
| RS232-USB-KONV | Interface converter RS232 - USB | |
LR-Cal QUARTZ-50 Datasheet
LR-Cal QUARTZ-50 Manual
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PRODUCTS Temperature Temperature calibration Dry block temperature calibrators LR-Cal QUARTZ-50
PRODUCTS Temperature Temperature calibration Dry block temperature calibrators LR-Cal QUARTZ-50