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Portable Dry Block Temperature Calibrator

Model LR- Cal QUARTZ-35

Range -30 ° C. .. +150 ° C

The portable dry block temperature calibrator LR- Cal QUARTZ-35 serves as a resource and reference temperature in one unit, for testing and calibration of temperature measuring instruments of all kinds

  • Temperature range -30 ... +150 ° C
  • Ramp function
  • Thermostat tests
  • Computer aided calibration via RS232 interface
  • Various block inserts with various holes for test available
  • Retrofit "black body" for the calibration of non-contact infrared thermometers possible


Thông số kỹ thuật

Specification of the metal block Temperature Calibrator LR- Cal QUARTZ-35


Temperature range

-30 ° C. .. +150 ° C

Temperature display

Accuracy ± 0.15 ° C 
Resolution 0.01 ° / 0.1 ° (° C or ° F)

Stability of the controlled temperature

± 0.02 ° C at 0 ° C


max. 10 ° C per minute


max. 5 ° C per minute

Temperature uniformity 

at 150 ° C: 
radial ± 0.05 ° C (at 95 mm immersion depth) 
axial ± 0.05 ° C (at 85 mm immersion depth)

Block depth

150 mm (usable: 135 mm)

Block diameter

sleeves for use with 35 mm diameter


230 VAC (115 VAC optional)


300 VA



Housing Material



about 10 kg


160 x 340 x 330 mm


Scope of delivery and accessories for the metal block temperature calibrator LR-Cal QUARTZ-35

Standard delivery:

  • Portable metal block temperature calibrator LR- Cal QUARTZ-35 or QUARTZ-35-2I
  • Spare fuses
  • Cable for power supply
  • Connection cable for thermostat tests
  • 1 insert with 6 holes 
    (4 - 4.5 - 5.5 - 6.5 - 8.5 to 10.5 mm diameters
  • Extraction tool for changing insert sleeves
  • Manual
  • Certificate of calibration (performance and accuracy)
  • Execution only LR- Cal QUARTZ-35-2I: 
    Electrical connection cable (red / black), screw (red / black) for the two measurement inputs


Tùy chọn phụ kiện

Optional accessories:


Article number



Retrofit kit with black radiator 
high emissivity, for calibration 
of non-contact infrared 
thermometers. Solid core, interior with 
graphite coating 
Incl. Precision reference sensor 
Pt 100 (4-wire)


External precision reference sensor Pt 100 
-100 ... +670 ° C, TC: 0.003850 1 / K; stability of <40 mK, 
diameter 6.35 mm, length 450 mm, protection tube made ​​of Inconel 
connection to 4-wire circuit, including 2 m PTFE cable, insulated and tinned 
including case


DKD calibration to 


This constant calculation


Alternatively, constant calculation including table of values ​​(in degree increments)


Insert sleeve without hole (to be drilled)


Insert with 2 holes (6.5 to 19.5 mm dia.) 

INS-SPEC 633-3

Insert with 1 .. 3 holes per customer (diameter 3.5 ... 20 mm) 

INS-SPEC 633-6

Insert with 4 .. 6 holes per customer (diameter 3.5 ... 20 mm) 

INS-SPEC 633-10

Insert with 7 .. 10 holes per customer (diameter 3.5 ... 20 mm) 


Carrying case with shoulder strap


Aluminium case


PC software LR- Cal AQ2sp
incl RS232 interface lead temperature sensor calibration: automatic calibration routine for all type of temperature sensor with advanced search features reference sensor stabilization, time-calibration data are stored for printing and Automatically Populated report. This procedure can therefore be run 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 thermo meter stress test: Simply set MAX and MIN value and the software will run on automatic stress test on single sensor or a batch. Advance thermostat calibration: Simply set the open and close temperature limits, type of thermostat, type of test and the software will Automatically run the test.


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