K Type Thermocouple Temperature Transmitter DAT1120-1 DIP Switch Programmable.
GENERAL DESCRIPTION
The DAT1120 is a Hockey Puck (head mount) Temperature Transmitter. The DAT1120 is available for different Thermocouples as below.
- DAT1120-1 Is available for K type Thermocouples and J Type Thermocouples.
- DAT1120-2 Is available for R type Thermocouples and S Type Thermocouples.
- DAT1120-3 Is available for T Type Thermocouples.
- DAT1120-4 Is available for N Type Thermocouples.
The DAT1120 will read the temperature input and provide a 4-20mA output signal. The DAT1120 is voltage linear not temperature linear.
The DAT1120 is programmable by Dip Switches which are located under a plastic cap on top of the thermocouple temperature Transmitter.
The DAT1120 is accurate to 0.1% full scale and has less than 0.02%/'f Thermal drift.
The DAT1120 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT1120is housed in a self-extinguish plastic enclosure suitable for DIN B in-head mounting.
There is a mounting kit available to mount the DAT1120 on DIN rail.
USER INSTRUCTIONS
The transmitter DAT1120 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 ”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 .
The configuration of the input range must be made by DIP-switches. To configure the device refer to the section “Input ranges table”. Regulate the output value by the ZERO and SPAN regulations.
To calibrate and install the transmitter refer to sections " DAT1120: configuration and calibration" and “Installation Instructions”.
TECHNICAL SPECIFICATIONS
| Input | |
| Sensor | Thermocouple type B, E, J, K, N, R, S and T |
| Zero programmability | Programmable from -50 up to 50 °C or from - 58 up to 122 °F |
| Span programmability |
| Thermocouple type K (Version 1): | from 100 up to 1370 °C or from 210 up to 2500 °F |
| Thermocouple type J (Version 1): | from 100 up to 950 °C or from 210 up to 1740 °F |
| Thermocouple type R (Version 2): | from 650 up to 1760 °C or from 1200 up to 3200 °F |
| Thermocouple type S (Version 2): | from 700 up to 1760 °C or from 1290 up to 3200 °F |
| Thermocouple type T (Version 3): | from 100 up to 450 °C or from 210 up to 840 °F |
| Thermocouple type N (Version 4): | from 150 up to 1300 °C or from 300 up to 2370 °F |
| Thermocouple type B (on request): | from 900 up to 1820 °C or from 1652 up to 3308 °F |
| Thermocouple type E (on request): | from 100 up to 1050 °C or from 210 up to 1920 °F |
| 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. |
DAT1120: VERSION LIST (use to order the device).
Version 1 : Thermocouple K and J;
Version 2 : Thermocouple R and S;
Version 3 : Thermocouple T;
Version 4 : Thermocouple N.
Note: thermocouples B and E available on request.
DAT1120: CONFIGURATION AND CALIBRATION
1) Calculate the difference between the full-scale and the zero values (Span).
2) Refer to the “Input range table”, find the thermocouple in use and determine in the column " PROG SPAN " where the calculated value is included. Determine in the column “ PROG ZERO”, the range of value where the zero scale value is included. In the side, is shown the relative DIP-switches configuration.
3) Remove the protection plastic cap
4) Set the switches as indicated.
5) Connect on input a simulator of thermocouple.
6) Set the simulator at the zero value.
7) Regulate the output value at 4 mA by the “ZERO” potentiometer .
8) Set the simulator at the full scale value.
9) Regulate the output value at 20 mA by the “SPAN” potentiometer .
10) Repeat the operation from the step 6 to the step 9 until the output values are accurate ( typical 3 attempts required ).
Example of configuration:: TC “ K ” 0 ÷ 400 °C
Span => 400°C ;
Input switches configuration: Off, On, Off, On.
DAT1120 VERSION TABLE
| SWITCH |
| THERMOCOUPLE K PROGRAM SPAN | 1 | 3 | 4 |
| 100÷150°C (210÷300 °F) | O | O | |
| 150÷390°C (300÷730 °F) | O | O | O |
| 390÷510°C (730÷950 °F) | O | ||
| 510÷1370°C (950÷2500 °F) | O | O |
| SWITCH |
| THERMOCOUPLE K PROGRAM ZERO | 2 |
| - 50 ÷ - 10°C (-58 ÷ 14 °F) | |
| -10 ÷ 50 °C (14 ÷ 122 °F) | O |
| SWITCH |
| THERMOCOUPLE J PROGRAM SPAN | 1 | 3 | 4 |
| 100÷115°C (210÷240 °F) | O | ||
| 115÷290°C (240÷550 °F) | O | O | |
| 290÷390°C (550÷730 °F) | |||
| 390÷950°C (730÷1740 °F) | O |
| SWITCH |
| THERMOCOUPLE J PROGRAM ZERO | 2 |
| - 50 ÷ - 10°C (-58 ÷ 14 °F) | |
| -10 ÷ 50 °C (14 ÷ 122 °F) | O |
| SWITCH |
| THERMOCOUPLE R PROGRAM SPAN | 1 | 3 | 4 |
| 650÷940°C (1200÷1720 °F) | O | ||
| 940÷1760°C (1720÷3200 °F) | O | O |
The programming of the Zero is not necessary; it can be adjusted from -50 up to 50 °C by the Zero potentiometer.
| SWITCH |
| THERMOCOUPLE S PROGRAM SPAN | 1 | 3 | 4 |
| 700÷1010°C (1290÷1850 °F) | O | ||
| 1010÷1760°C (1850÷3200 °F) | O | O |
The programming of the Zero is not necessary; it can be adjusted from -50 up to 50 °C by the Zero potentiometer.
| SWITCH |
| THERMOCOUPLE T PROGRAM SPAN | 1 | 3 | 4 |
| 100÷145°C (210÷290 °F) | O | ||
| 145÷450°C (290÷840 °F) | O | O |
The programming of the Zero is not necessary; it can be adjusted from -50 up to 50 °C by the Zero potentiometer.
| SWITCH |
| THERMOCOUPLE N PROGRAM SPAN | 1 | 3 | 4 |
| 150÷200°C (300÷390 °F) | O | ||
| 200÷480°C (390÷890 °F) | O | O | |
| 480÷580°C (890÷1070 °F) | |||
| 580÷1300°C (1070÷2370 °F) | O |
| SWITCH |
| THERMOCOUPLE N PROGRAM ZERO | 2 |
| - 50 ÷ -15 °C ( - 58 ÷ 5 °F) | |
| - 15 ÷ 50°C ( 5 ÷ 122 °F) | O |
O= DIP SWITCHES " ON"
INSTALLATION INSTRUCTIONS
The device DAT1120 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