Thermocouple Temperature Transmitter Low Cost DAT1030.
GENERAL DESCRIPTION
The temperature Transmitter DAT1030 is a thermocouple hockey puck (head mount) Temperature transmitter. The input can be K-Type Thermocouples, E-Type Thermocouples, J-Type Thermocouples, N-Type Thermocouples, R-Type Thermocouples, S-Type Thermocouples, T-Type Thermocouples. The DAT1030 will read the temperature input and provide a 4-20mA output signal. The DAT1030 is voltage linear not temperature linear.
The DAT1030 is accurate to 0.1% full scale and has less than 0.02%/'f thermal drift.
The DAT1030 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT1030 is housed in a self-extinguish plastic enclosure suitable for DIN B in-head mounting.
There is a mounting kit available to mount the DAT1030 on DIN rail.
USER INSTRUCTIONS
The transmitter DAT1030 must be powered by a direct voltage between 12 to 32 V and applied to the terminals +V and -V.
The 4÷20 mA output signal is measurable in the power loop as shown in the section “Output/Power supply connections”; Rload is the input impedance of instruments on the current loop; to obtain a correct measure, the value of Rload will be calculated as function of the power supply value ( see section “Technical specification – Load characteristic”).
The input sensor must be connected to the terminals 1(-TC) and 3 (+TC) as show in the section "Input connections"; in case of use of a shielded cable, connect the shield to the terminal 1 .
To adjust the output measure use the potentiometers ZERO (begin scale value) and SPAN (full scale value).
This operation can be made on field refer to a calibrated thermometer or using a simulator of thermocouple; in case of use of simulator of thermocouple with internal CJC, the value of voltage corresponding to the ambient temperature must be subtracted from the input voltage .
To install the transmitter refer to the section “ Installation Instructions”.
TECHNICAL SPECIFICATIONS
| Input | |
| Sensor | Thermocouple type E, J, K, N, R, S and T |
| Input range | see section “Sensors Table” |
| Line resistance influence | 0,2 uV / W |
| Output | |
| Output type | 4 ÷ 20 mA on current loop |
| Sensor interruption signalling | Positive out of scale(> 20 mA) |
| Maximum output signal | 35 mA |
| Load resistance (Rload) | see section “Load characteristic” |
| Response time | 300 ms |
| Warm-up time | 3 min. |
| Performances | |
| Calibration error | the bigger than ± 0.1 % of f.s. or 0.2 °C |
| Linearity error(*) | ± 0.1 % of f.s. |
| Cold Junction Compensation (CJC) | ± 0.5 °C |
| Thermal drift | 0,02 % of f.s./°C ( per Span > 300 °C / 500 °F ) |
| Power supply voltage(**) | 10÷32 Vdc |
| Electromagnetic Compatibility (EMC) ( for industrial environaments ) Immunity: |
EN 61000-6-2; Emission : EN 61000-6-4. |
| Operating Temperature | -20 ÷ 70 °C |
| Storage Temperature | -40 ÷ 100 °C |
| Humidity (not condensed) | 0 ÷ 90% |
| Weight | about 35 g. |
| (*)inclusive of hysteresis, linearisation error and power supply voltage variation (**)internally protected against reverse polarity. |
Sensor Table
Use this table to determine the type and range of the thermocouple to order the
device.
| SENSOR | MIN.SPAN | MAX. SPAN | ZERO |
| E | 100°C / 210°F | 1050°C / 1920 °F | -50÷50 °C / -58÷122°F |
| K | 100°C / 210°F | 1370°C / 2500 °F | -50÷50 °C / -58÷122°F |
| J | 100°C / 210°F | 950°C / 1750 °F | -50÷50 °C / -58÷122°F |
| N | 150°C / 300°F | 1350°C / 2460 °F | -50÷50 °C / -58÷122°F |
| R | 650°C / 1200°F | 1760°C / 3200 °F | -50÷50 °C / -58÷122°F |
| S | 650°C / 1200°F | 1760°C / 3200 °F | -50÷50 °C / -58÷122°F |
| T | 100°C / 210°F | 450°C / 842 °F | -50÷50 °C / -58÷122°F |
Notes:
Sensor: indicates the type of thermocouple to connect to the input.
Min. Span: indicates the minimum working span (minimum difference between full scale and begin
scale values).
Max. Span: indicates the maximum working span (maximum difference between full scale and begin
scale values).
Zero:indicates the group of values where must be included the begin scale value.
INSTALLATION INSTRUCTIONS
The device DAT1030 is suitable for direct DIN B in-head mounting.
The transmitter must be fixed inside the probe by the proper kit. By apposite stirrup, provided on request, it is possible to mount the device on DIN rail in compliance with EN-50022.
It is necessary to install the device in a place without vibrations; avoid to routing conductors near power signal cables .
CONNECTIONS
LOAD CHARACTERISTIC
DIMENSIONS
ISOLATION STRUCTURE
None