
Dry well (metal block) Temperature calibrator
Model LR-Cal QUARTZ-35
Range -30°C...+150°C
The portable dry well temperature calibrator model LR-Cal QUARTZ-35 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 -30...+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 for accuracy and stability
Instrument versions
LR-Cal QUARTZ-35 Instrument versions
The dry well temperature calibrator LR-Cal QUARTZ-35 is available in two versions:
- Standard version
Order-Code: QUARTZ-35
- Version with dual input for Pt 100 and TC
Order-Code: QUARTZ-35-2I

Two inputs for Pt 100 and Thermocouples, programmabler:
• Pt 100 IEC 3-/4-wire, Range -100...+700°C, Accuracy ±0.3°C
• Thermocouple type K/N/R/S, Range 0...1300°C, Accuracy ±1°C
Extended scope of delivery:
Set of electr. leads, set of screw terminals
Specification
LR-Cal QUARTZ-35 Specification
Temperature range (at +20°C ambient temperature) |
-30°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 |
±0.03° |
Mean heating time |
max. 10°C per minute |
Mean cooling time |
max. 5°C per minute |
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) |
Block insertion depth |
135 mm |
Block diameter |
for inserts with 35 mm diameter |
Power supply |
230 VAC (optional 115 VAC) |
Power consumption |
300 VA |
Interface |
RS232 (USB converter available as option) |
Housing material |
Metal |
Weight |
approx. 10 kgs |
Dimension |
340 x x 160 x 330 mm |
Scope of delivery + Accessories
LR-Cal QUARTZ-35 Scope of delivery + Accessories
Scope of standard delivery:
- Portable metal dry well temperature calibrator model LR-Cal QUARTZ-35 or LR-Cal QUARTZ-35-2I
- 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-35-2I:
Red and black cables with banana plugs for both measuring inputs
Optional Accessories:
DOWNLOADs
LR-Cal QUARTZ-35 Datasheet / Operating manual