gle/RTD-100-1
Modular conditioning system for RTD sensors
Main Features • Single-channel conditioner board for RTD-PTl00 sensors |
• l6 bit A/D-D/A conversion |
Overview
gle/RTD-100-1 is a single-channel conditioning module for RTD sensors particularly suitable for all those applications requiring stable and accurate temperature measurements. Each module is pluggable into the l9" 3U rack mountable chassis gle/EuroRack/AC that can host up to 12 gle/RTD-100-1 cards and it accepts AC 230 V as input power supply.
Each gle/RTD-100-1 board encompasses a µC for the management of the A/D conversion, the full-scale selection, the on-line signal linearization and the auto-calibration procedure. In order to achieve better accuracy, it is possible to define one of four different measurement ranges: ±100; ±200; -200/+400 and -200/+800 °C. Selection is obtainable by means of switch on the card's front panel. In the standard version the gle/RTD-100-1 module features three different algorithms for sensor linearization (polynomial method), according to the specifications reported below:
| Standard | α coefficient |
|
DIN |
0.003850 |
|
ITS-90 |
0.003926 |
| American | 0.003911 |
16-bits resolution guarantees highly accurate analog/digital and digital/analog conversions respectively before and after signal processing.
Technical Specifications- gle/RTD100-1
|
Transducer type |
PT100 |
|
Sensor wiring |
4 wires: 2 for excitation, 2 for signal |
|
Excitation |
High-stable (10 ppm/°C) current (0.5 mA) |
|
Sample rate |
20 Samples/sec |
|
Output refresh |
20 Samples/sec |
|
RTD linearization curve options |
· DIN a=0.00385 · ITS-90 a=0.003926 · American standard a=0.003911 |
|
Linearization curve selection |
Through on-board jumpers |
|
Signal to noise ratio |
90 dB |
|
Overall linearity |
0.1% |
|
Zero stability |
20 ppm |
|
CAL reference |
Internal high-precision reference resistor (±0.01%; ±5ppm) |
|
Manual zero and span calibration |
by trimpots on front panel |
|
Measurement range |
±100; ±200; -200/+400 and -200/+800 °C |
|
Measurement range selection |
by switch on front panel |
|
“Test” output |
available on the front panel |
|
Output range |
±10 V |
|
Options |
Ordering code |
|
Current output signal (4¸20 mA) |
GLE/RTD100-1/OC |
gle/EuroRack/AC
|
Rack type |
19” 3U standard chassis |
|
Maximum number of housed boards |
12 |
|
Power supply |
230 VAC, 50 Hz ±10% |
|
Power consumption |
< 30 W (fully equipped with 12 GLE/RTD100-1 boards) |
|
Operating temperature range |
-10 ¸ +50°C |
|
Input connectors |
Removable screw terminals |
|
Output connectors |
Removable screw terminals and BNCs |
|
Protection fuse |
T 2A 250 V |
|
Weight |
7 kg (fully equipped with 12 GLE/RTD100-1 boards) |
Due to continuous developments, specifications are subject to change without prior notice. This product is not intended for applications whose its failure to perform can be expected to cause damages to properties and/or persons and/or injury to human life.
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