RTD Pt100 Temperature Transmitter DAT1110 with Dip Switch programmability.
GENERAL DESCRIPTION
The temperature Transmitter DAT1110 is a Pt100 RTD hockey puck (head mount) temperature Transmitter with Dip Switch programmability. The DAT1110 will linearize the temperature input and provide a 4-20mA output signal.
The DAT1110 is accurate to 0.1% full scale and has less than 0.01%/'f thermal drift.
The DAT1110 is programmable by Dip Switches which are located under a plastic cap on top of the Pt100 temperature transmitter.
For resistance and RTD's sensors it is possible to program the cable compensation for 3 or 4 wires.
It is possible to set the minimum and maximum values of the input and output ranges in any point of the scale, keeping the minimum span shown in the table below. Also high burn out alarm or low burn out alarm is selectable.
The DAT1110 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT1110 is housed in a self-extinguish plastic enclosure suitable for DIN B in-head mounting.
There is a mounting kit available to mount the DAT1110 on DIN rail.
USER INSTRUCTIONS
The transmitter DAT1110 must be powered by a direct voltage between 10 to 32 V 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 connections must be made as shown in the section "Input connections".
The Pt100 three wires must be connected to the terminals 2 and 3, connecting the third wire to the terminal 1.
The Pt100 two wires must be connected to the terminals 2 and 3, connecting the terminal 2 and 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 " DAT1110: configuration and calibration" and “Installation Instructions”.
TECHNICAL SPECIFICATIONS
| Input | |
| Sensor type | RTD Pt100 in according to IEC 60751 |
| Minimum input Span | 50 °C (122 °F) |
| Zero values | From -50 °C (-58 °F) up to + 50 °C (122 °F) |
| Span values | From 50 °C (122 °F) up to 650 °C (1202 °F) |
| Excitation current | 1 mA typ. |
| Line resistance influence | 0.05 % of f.s./ohm (100 ohm max. balanced per wire) |
| Output | |
| Output type | 4 ÷ 20 mA on current loop |
| Sensor interruption signaling Positive out of scale | (> 20 mA) |
| Maximum output signal | 35 mA |
| Load resistance (Rload) | see section “Load characteristic” |
| Response time | (from 10 to 90 % of f.s.) 300 ms |
| Warm-up time | 3 min. |
| Performances | |
| Calibration error | ± 0.1 % of f.s. |
| Linearity error | (*) ± 0.15 % of f.s. |
| Thermal drift | 0.03 % of f.s./°C |
| Power supply voltage | (**) 10÷32 Vdc |
| Electromagnetic Compatibility (EMC) ( for industrial environments ) Immunity: |
EN 61000-6-2; Emission : EN 61000-6-4. |
| Operating Temperature | -20 ÷ 70 °C |
| Storage Temperature | -40 ÷ 85 °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. |
INSTALLATION INSTRUCTIONS
The device DAT1110 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 .
CONFIGURATION AND CALIBRATION
1) Calculate the difference between the full-scale and the begin scale values (Span).
2) Refer to the “Input range table” and determine in the column " SPAN " where the calculated value is included. Determine in the column “ZERO”, the range of value where the zero scale value is included. In the line obtained with the combination, is shown the DIP-switches configuration.
3) Remove the protection plastic cap
4) Set the switches as indicated.
5) Connect on input a Pt100 simulator or a fixed resistance value corresponding to the resistive value provided from the Pt100 sensor at the selected temperatures.
6) Set the simulator at the minimum temperature or connect a fixed resistance value corresponding to the zero value.
7) Regulate the output value at 4 mA by the “ZERO” potentiometer .
8) Set the simulator at the maximum temperature or connect a fixed resistance value corresponding to the span 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: -30/200 °C. Span => 200°C - (-30°C) = 230°C; Input switches configuration(DSI ): Off, Off, Off, Off.
| INPUT | SWITCH |
| SPAN | ZERO | 1 | 2 | 3 | 4 |
| < 80°C (176°F) | - 50 ÷ -15°C(-58÷5°F) | O | |||
| < 80°C (176°F) | - 15 ÷ 15°C(5÷59°F) | O | O | ||
| < 80°C (176°F) | 15 ÷ 50°C(59÷122 °F) | O | O | O | |
| 80÷200°C(176÷392°F) | - 50÷50°C(-58÷122°F) | O | O | ||
| 80÷200°C(176÷392°F) | - 15 ÷ 15°C(5÷59°F) | O | O | O | O |
| 80÷200°C(176÷392°F) | -15 ÷ 50°C(59÷122 °F) | O | O | O | |
| 200÷250°C(392÷482°F) |
- 50÷50°C(-58÷122°F) | ||||
| 250÷650°C(482÷1202°F) | - 50÷50°C(-58÷122°F) | O |
LOAD CHAACTERISTIC
DIMENSIONS
CONNECTIONS
ISOLATION STRUCTURE
None