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DIGITAL THERMOMETERS WITH DISPLAY

Description and application

DIGITAL THERMOMETERS WITH DISPLAY

 These thermometers are made i 5 versions:

The TDi version is fitted with a programmable converter for a 4 - 20 mA current loop. Buttons enable the setting of certain parameters of the current loop on display (e.g. temperature unit).

The TDu version with a voltage output of 0 - 10 V or 0 - 5 V (three-wire connection). With the help of the buttons you can set the parameters for the voltage output or units on the display. On request, it is possible to add two switching semiconductor switches.

The TDs version with only a switching contactless 30 V/500 mA switch. By using the buttons you can set the parameters of switching and the units od the display.

The TDb battery-powered version. It does not have analogue or switching output. The thermometer is generally in sleep mode and data appears od the display for approx. 10 sec. Moreover, in this version you can select certain parameters of display, such as the temperature unit or minimum or maximum temperature value.

The TDd version with RS232 or RS485 (three-wire) serial digital output. This version enables the use of 1 switch. The communication protocol is ASCII or MODBUS RTU.


  • Specifications
  • Přiložené soubory
Technical parameters
Power supply
(U): 9 to 30 V DC for 2-wire connection (TDI)
15 to 30 V DC for 3-wire connection (TDu, TDs, TDd)
Maximum operating
temperature range
-50 to 150 °C, -50 to 400 °C
Load resistance
< (U nap – 9 V) /0.02 for 2-wire connection
> 10 k for 3-wire connection
Display range
4 1/2 digits, bar graph, power supply effect
(IEC 770): < 0.005 %/1 V
Sensor error
see Pt100 A or Pt100 B standard
Converter errors
(in accordance with IEC 770)
basic 0.15 %, repeatability 0.05 %
hysteresis 0.03 %, linearity 0.25 %
Temperature dependence
(IEC 770)
zero error 0.15 % /10 K (range 0 to 70 °C)
error margin 0.15 % /10 K (range 0 to 70 °C)
Range of analogue outputs
adjustable using buttons and display - min. margin 20 %
of the standard range
Response time
standard (flowing water, 0.4 m.s-1, 50=) < 7 s
fast (flowing water, 0.4 m.s-1, 50=) < 4 s
fast (flowing water, 0.4 m.s-1, 90=) < 10 s
Damping constant
programmable 0 to 100 s
Ambient temperature of heads -20 to 70 °C
Relative humidity
< 95% (without condensation)
Ingress protection IP 65 in accordance with EN 60529
Material of the sensor stem
stainless steel DIN1.4301
Head material
PA 6.6, polycarbonate
EMC
(elektromagnetic compatibility)
EN 50081-2 (emissions)
EN 50082-2 (resistance)

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.

Datasheet - DIGItAl THERMOMETERS WITH DISPLAY
Datasheet - DIGItAl THERMOMETERS WITH DISPLAYDatasheet - DIGItAl THERMOMETERS WITH DISPLAY
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