RTD Temperature Transmitter DAT1070 with PC programmability.
GENERAL DESCRIPTION
The low profile temperature Transmitter DAT1070 is an RTD hockey puck (head mount) temperature Transmitter with PC programmability. The input can be Pt100, Pt1000, Ni100, Ni1000 or mV and potentiometer. The DAT1070 will linearize the temperature input and provide a 4-20mA output signal.
The DAT1070 is accurate to 0.1% full scale and has less than 0.01%/'f thermal drift.
The DAT1070 is programmable by PC based software which has been developed by DATEXEL to be user friendly.
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 DAT1070 is in compliance with the standard 89/336/CEE on the Electromagnetic Compatibility.
The DAT1070 is housed in a self-extinguish plastic enclosure suitable for DIN B in-head mounting.
There is a mounting kit available to mount the DAT1070 on DIN rail.
USER INSTRUCTIONS
The RTD Temperature transmitter DAT1070 must be powered by a direct voltage between 10 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 connections must be made as shown in the section "Input connections".
To configure, calibrate and install the transmitter refer to sections " DAT1070: configuration and calibration" and “Installation Instructions”.
TECHNICAL SPECIFICATIONS
| Input type | Min | Max | Min. span |
| RTD(*) 2,3,4 wires | |||
| Pt100 | -200°C | 850°C | 50°C |
| Pt1000 | -200°C | 200°C | 50°C |
| Ni100 | -60°C | 180°C | 50°C |
| Ni1000 | -60°C | 150°C | 50°C |
| Voltage | |||
| mV | -100mV | +700mV | 2 mV |
| Potentiometer | |||
| (Nominal value) | 0 Ohm | 200 Ohm | 10% |
| 200 Ohm | 500 OhM | 10% | |
| 0.5 KOhm | 2 KOhm | 10% | |
| RES. 2,3,4 wires | |||
| Low | 0 Ohm | 300 Ohm | 10 Ohm |
| High | 0 Ohm | 2000 Ohm | 200 Ohm |
| Output type | Min | Max | Min. span |
| Direct current | 4 mA | 20 mA | 4 mA |
| Reverse current | 20 mA | 4 mA | 4 mA |
| Input calibration (1) | |
| RTD | > of ±0.1% f.s. or ±0.2°C |
| Low res. | > of ±0.1% f.s. or ±0.15 Ohm |
| High res. | > of ±0.2% f.s. or ±1 Ohm |
| mV | > of ±0.1% f.s.or ±18 uV |
| Output calibration | |
| Current | ± 7 uA |
| Input impedance | |
| mV | >= 10 MOhm |
| Linearity (1) | |
| RTD | ± 0.1 % f.s. |
| Line resistance influence | |
| mV | <=0,8 uV/Ohm |
| RTD 3 wires | 0.05%/Ohm (50 Ohm balanced max.) |
| RTD excitation current | |
| Typical | 0,350 mA |
| Thermal drift (1) | |
| Full scale | ± 0.01% / °C |
| Burn-out values | |
| Max. value | about 22.5 mA |
| Min. value | about 3.6 mA |
| (1) referred to input Span (difference between max. and min. values) |
| Performances | |
| Response time ( | 10÷ 90%) about 400 ms |
| Power supply voltage | (**) 10÷32 Vdc |
| Reverse polarity protection | 60 Vdc max |
| 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% |
| Mounting | DIN B head or bigger |
| Weight | about 50 g. |
| Dimensions | = 43 mm ; H = 17 mm |
| (*) For temperature sensors it is possible to set the input range also in F degrees; to made the conversion use the formula: °F = (°C*9/5)+32) |
INSTALLATION INSTRUCTIONS
The device DAT1070 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) Power-on the DAT1070 by a direct voltage between 10 ÷ 32 V or (only to configure) by a 9 V battery .
2) Remove the protection plastic cap on DAT1070.
3) Connect the interface PRODAT to the Personal Computer and to device. (see section “ DAT1070: PROGRAMMING” ).
4) Run the software PROSOFT.
5) Set the parameters of configuration .
6) Program the device.
CALIBRATION CONTROL With software PROSOFT running:
1) Connect on the input a calibrator setted with minimum and maximum values referred to the electric signal or to the temperature sensor to measure.
2) Set the calibrator at the minimum value.
3) Verify that the DAT1070 provides on output the minimum setted value.
4) Set the calibrator at the maximum value.
5) Verify that the DAT1070 provides on output the maximum setted value.
6) In case of regulation of value obtained in the step 3 and 5, use the ZERO and SPAN regulators of software PROSOFT. The variation introduced from these regulators must be calculated as percentage of the input range .
7) Program the device with the new parameters .
PROGRAMMING
CONNECTIONS
Input
Output
LOAD CHARACTERISTIC
DIMENSIONS
ISOLATION STRUCTURE
None