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Digital thermometers Types DT3-01, -02

 

Product descriptiong

Possible areas of application Digital thermometers Types DT3-01, -02

  • Beverages industry
  • Chemicals industry
  • Machine and plant engineering
  • Boiler construction
  • Large gear construction
  • Large compressor construction

 

Description

The measuring principle
Digital thermometers of the DiTemp series work with a discrete-time process with one measurement cycle taking 3 seconds. The user can therefore read off the current temperature even in passing. A flashing activity symbol on the display indicates correct functioning of the instrument during the measurement cycle.

The display unit
The DiTemp has an easily readable LCD display. Two different types of display are available. The basic reasoning behind the design of the dual display unit was to give it the appearance of a traditional dial instrument. We achieved this with a circular arrangement of LCD elements. This quasi-analogue format enables you to interpret the reading as instantly as a conventional dial instrument. However, a 4-digit, 7-segment display is additionally incorporated for times when you want to know the exact temperature.

Mechanical construction
Instruments of the DiTemp series have a robust mechanical assembly and are designed for both industrial applications and use in harsh environmental conditions. The IP65 protection level (frontside) ensures these requirements are met. The immunity to electromagnetic interference satisfies the requirements of the current industrial standards.

Continuous self-test
After switch-on, the instrument performs an internal selftest that includes a check of the connected sensor. Automatic diagnostic routines continuously monitor the sensor signal and a broken sensor is indicated via the display unit. The microprocessor constantly tests the sensor signal for plausibility. In the event of a fault, the results are indicated on the display as an error code.

Integrated measurement transducer
Integration of the measurement transducer into the local display unit means the space requirement is substantially reduced along with acquisition and installation costs, since a complete measuring point is saved. The measurement transducer system is independent of the local display unit, providing you with a redundant measuring system. The instrument is supplied via the transmitter, so there is no load on the battery or solar cell unless the current loop fails. This means the local display is both reliable and independent.

Freely programmable switching contact
The absence of mechanical contacts makes the thermometer fail-safe and prevents unwanted switching operations through vibration, for example. In addition to the programmable alarm contact, the instrument has a signalling contact that indicates all faulty operating states such as broken sensor or battery charge level. The contacts are designed as normally open contacts. Programming is performed without touching the instrument and is menu assisted. All operating states are monitored by the electronics. In contrast to mechanical instruments, the user has the benefit of a measuring system that is significantly more reliable und stable over the long term.

Technical features

Technical features

 
Display ranges*


 
-40...80 °C
0...120 °C
0...200 °C
0...300 °C
Resolution

0.1 K in the range <200 °C
1 K in the range >200 °C
Accuracy ±1 % of range ±1 digit
Display 3½ digit, 7 segment LCD, 14 mm high, bar graph 17 divisions
Connection
 
Immersion tube routed to the rear (axial), Ø 6 mm or 8 mm
Immersion tube routed downwards (vertical), Ø 6 mm or 8 mm
Power supply Lithium battery, 10 years service life

* Other specifications are available on request

 

Options

  • Analogue output
  • Alarm output

 

Contact

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