LR-Cal LTC-DB-1100-44
Metal dry block temperature calibrator
+200...+1100°C
- Portable metal dry block temperature calibrator
- Range +200°C...+1100°C
- Accuracy ±3°C, stability ±0.05°C
- Dry block: 44 mm diameter
Immersion depth: 220 mm
Description
LR-Cal LTC-DB-1100-44 description
The LR-Cal LTC-DB-1100-44 metal dry block temperature calibrator serves as both a temperature source and reference device for testing and calibrating all types of temperature measuring instruments.
- Temperature range +200°C...+1100°C
- Homogeneous temperature distribution
- Easy operation with color touchscreen
- Ramp function + thermostat tests
- Computer-controlled calibrations via USB interface and optional LR-Cal Aq2Sp2 software for MS Windows® PCs
- Numerous block inserts with different bores available for different test objects
- Option: Block insert with “black body radiator” for calibrating infrared thermometers
Less thermal stress for your test specimens
The LR-Cal LTC-DB-1100-44 metal dry block temperature calibrator is equipped with a counterflow forced ventilation system that keeps the temperature in the upper part of the calibrator very low. This solution makes it possible to keep the connection head or housing of the device under test very close to room temperature.
It also ensures a high level of safety for the operator, as the temperature of the grille on the top of the housing remains very low.
The figure shows a thermocouple as a test object in an LR-Cal LTC-DB-1100-44 at 1,000°C. The temperature of the connection head of the test object, measured with an optical pyrometer, is only 37.7°C, which is very close to room temperature. This test confirms the excellent insulation of this calibrator.
Options LTC-MP-3I (3 measuring inputs) + LTC-MP-115V (for 115 VAC)
Option LTC-MP-3I - three configurable measuring inputs
The LTC-MP-3I option can be ordered together with the LR-Cal LTC-DB-1100-44:
Device version with 3 configurable measuring inputs. Of these, 2 for resistance thermometers (Pt 100 (2-, 3- or 4-wire) or Pt 100, or thermocouples incl. cold junction compensation, types B, E, J, K, N, R, S and T, and 1 measuring input for analog output signals 4...20 mA or 0...10 V.
Order-Code: LTC-MP-3I (must be ordered together with the base unit)
Extended scope of delivery:
Electrical connection cables, plugs/terminals (red/black) for electrical connections
| Accuracy (max. deviation) of resistance and thermocouple measurement inputs with option LTC-MP-3I: | ||||||||
|---|---|---|---|---|---|---|---|---|
| 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 | ||
| Thermocouple types K, N, R and S | at +400°C: | ±0.64°C | at +700°C: | ±0.82°C | at +1000°C: | ±1.00°C | ||
| Thermocouple type T | at -40°C: | ±0.42°C | at 0°C: | ±0.40°C | at +350°C: | ±0.61°C | ||
Option LTC-MP-115V - device version for für 115 VAC
The LTC-MP-115V option can be ordered together with the LR-Cal LTC-DB-1100-44:
Device version for power supply 115 VAC 50/60 Hz (instead of für 230 VAC).
Specification
LR-Cal LTC-DB-1100-44 specification
| Description: | Data: | |
|---|---|---|
| Temperature range: | +200...+1100°C | |
| Display: | Touchscreen (color) | |
| Display accuracy: | ±3°C full temperature range * | |
| Units of measure: | °C / °F / K | |
| Display resolution: | 0,1° / 0,01° / 0,00^° | |
| Mean heating time: (incl. stabilization) |
approx. 60 min. from ambient temperature to +1000°C |
|
| Mean cooling time: (incl. stabilization) |
approx. 330 min. from +1000°C to +100°C |
|
| Stability: | ±0.05°C | |
| Axial uniformity: | 3.6°C ±0.3 ** | |
| Radial uniformity: | ±1°C *** | |
| Hole (block) diameter: | 44 mm | |
| Hole (block) depth: | 220 mm | |
| Insert material: | Ceramics (optional Inconel) | |
| Switch test; voltage: | Open/Closed; 4.5 VDC | |
| Adjustable ramp function: | from 0.1°C/min | |
| PC interface: | USB type B | |
| Automatic calibration: | at 5 temperature points | |
| External probes: | Optional: Order-Code LTC-MP-3I (to be ordered together with device) | |
| Operating voltage: | 230 VAC (optional 115 VAC) 50/60 Hz | |
| Electric power: | 900 W | |
| Dimensions: | 170 x 330 x 450 mm | |
| Weight incl. std. accessories: | 12.0 kg | |
All values have been measured at ambient temperature of +20°C.
The achievement of stabilization is confirmed by a displayed root symbol and an audial beep.
* = Temperature deviation between display and reference probe.
** = Max. temperature difference at stable temperature over 30 min.
*** = Measured at 1000°C at 40 mm above the button.
Standard scope of delivery
LR-Cal LTC-DB-1100-44 standard scope of delivery
- Portable metal block temperature calibrator LR-Cal LTC-DB-1100-44
- Spare fuses
- Power supply cable
- Connection cable for thermostat tests
- 1 block insert 44 x 175 mm made of ceramic, with 4 holes: 7.0 + 9.0 + 11.0 + 13.5 mm diameter
- 1 tool for removing block inserts
- Only if option LTC-MP-3I is ordered: Electrical connection cables and connectors red/black for the three measuring inputs
- Acceptance test certificate 3.1 according to DIN EN 10204 (factory calibration certificate)
- Operating instructions DE+EN
Available dry block inserts
LR-Cal LTC-DB-1100-44 available dry block inserts
Outer dimensions: 44 x 175 mm
Schematic: block adapter and customer-specific adapter inserts

Block inserts in Ceramics:
Block inserts in Inconel:
Upper insulation in Duratec
LR-Cal LTC-DB-1100-44 options + further accessories
3 configurable
measurement inputs
Option, must be ordered together with the basic device:
Device version with 3 configurable measurement inputs
2 x for Pt 100 / Pt 1000 / thermocouples
1 x for analog signal 4-20mA / 0-10V
Power supply
115 VAC
Option, must be ordered together with the basic device:
Device version for power supply
115 VAC 50/60 Hz
(instead of 230 VAC)
NO extra charge
DAkkS
calibration certificate
Option:
DAkkS calibration certificate
for the measuring chain consisting of calibrator display and internal reference sensor, 6 measuring points
PC software
Aq2Sp2
Accessory:
Windows PC software Aq2Sp2
Download version
Sturdy
hard-shell case
Accessory:
Sturdy aluminum storage and transport case
with space for device and accessories
Dimensions 50 x 37 x 60 cm
Sturdy
trolley case
Accessory:
Sturdy hard-shell trolley case with extendable handle and wheels
with space for device and accessories
Dimensions 43 x 32 x 55 cm
Block insert
removal tool
Spare part:
Tool for removing metal block inserts
(1 piece already included in the device delivery)
Suitable reference sensors for device version with option LTC-MP-3I (3 configurable measurement inputs):
External Pt 100 reference sensors, see LR-Cal LRT-F (Pt 100)...
External reference thermocouple, see LR-Cal LRT-F (TC)...
The test object (all types of temperature measuring devices, e.g., dial thermometers, resistance thermometers, temperature switches, thermostats, etc.) and the reference temperature measuring device (built into the calibrator or external reference) are subjected to the same test temperatures. The measured values of the reference are compared with the values of the test item. This allows conclusions to be drawn not only about the function of the test item, but also about its measuring accuracy and measured value deviation.
Please note that the information specified in the respective technical data regarding radial and axial temperature uniformity refers to specific immersion depths and may not apply to all immersion depths in every case. The temperature range specifications apply at an ambient temperature of +20°C.
The LR-Cal metal dry block temperature calibrators have an internal (built-in) reference. If its accuracy is insufficient, an external reference (with or without its own display) can be used.
The LTC-MP-3I option can be ordered for the LR-Cal metal dry block temperature calibrators. This provides 3 measurement inputs, 2 of which are for resistance thermometers or thermocouples and 1 of which is for analog signals (4-20 mA or 0-10 V). Here, you can connect, for example, a test object and an external reference sensor, or 2 test objects and a temperature transmitter. The values of these connected sensors are shown on the calibrator's display.
Furthermore, the LR-Cal Aq2Sp2 PC software is available as an accessory for the LR-Cal metal block temperature calibrators. This software can be used to control the calibrator via its USB interface, perform manual or automatic calibration of one or more test objects, load and endurance tests, thermostat tests, and create calibration certificates.
Synonyms
Metal block temperature calibrators are also referred to as
- Block temperature calibrator
- Dry well temperature calibrator
- Metal block temperature calibrator
- Temperature calibration oven
- Temperature calibrator
- Temperature calibration device
- Temperature calibration oven

