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:

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