| Wago Analog Input Modules |
 |
| Part Number |
Conformity Marking |
 750-491 |
 |
| 65 ms conversion time: |
|
750-491/000-001 |
|
| 1-CHANNEL INPUT MODULE FOR RESISTANCE JUMPERS (DMS) CAGE CLAMP CONNECTION |
| The analog input module enables the direct connection of a resistor measurement bridge. The brigde voltage UD and supply voltage Uref of the brigde are digitised with a resolution of 16 bits. The input channels for the resistor bridge are available as two 16 bit values for further processing. The result of measurment can be calculated by the formula: Measured value = UD/Uref . Due to the accurate measurement of supply voltage as well as bridge voltage in one measurement transformer, long-term and temperature drift are compensated. Field and system level are electrically isolated. All I/O modules are independent of the fieldbus and automatically connected to the next module when snapped onto the DIN rail. To improve the electromagnetic compatibility (EMC) ground (earth) the DIN rail. |
|
| Technical Information |
| Characteristic |
Value |
| Number of inputs |
2, FOR ONE RESISTOR BRIDGE |
| Voltage supply |
via system voltage DC / DC |
| Current consumption typ (internal) |
65 mA |
| Signal voltage U d |
-16 mV ... +16 mV |
| Signal voltage U ref |
-10 V ... +10 V |
| Internal resistance |
> 200 kOhm (Uref), > 1 Mohm (DU) |
| Versorgungsspannung Uv |
DC 5 V, 20 mA |
| Resolution (Bit) |
16 Bit |
| Conversion time (typ) |
250 ms |
| Measuring error (entire measuring range) |
< +/- 0.01 % (OF THE UPPER RANGE VALUE) |
| Input filter (Hz) |
50 Hz |
| INSULATION SYSTEM / SUPPLY (V) |
500 V |
| Data size |
2 x 16 Bit Data2 x 8 Bit control / status (optional) |
| Operating temperature |
0 °C ... + 55 °C |
| Storage temperature |
-25 °C ... +85 °C |
| Relative air humidity |
95% |
| Vibration resistance |
acc. IEC 60068-2-6 |
| Shock resistance |
acc. IEC 60068-2-27 |
|
| Characteristic |
Value |
| Degree of protection |
IP 20 |
| EMC immunity to interference |
acc. EN 50082-2 (96) |
| EMC emission of interference |
per EN 50081-1 (93) |
| UL 508 |
E175199, UL 508 (applied for) |
| Conformity marking |
CE |
| Cross section from [mm²] |
0.08 mm² |
| Cross section to [mm²] |
2.5 mm² |
| Cross section from [AWG] |
28 AWG |
| Cross section to [AWG] |
14 AWG |
| Color |
light gray |
| Height |
64 mm |
| Height |
2.52 in |
| Width |
12 mm |
| Width |
0.472 in |
| Depth |
100 mm |
| Depth |
3.937 in |
| Strip length from |
8 mm |
| Strip length to |
9 mm |
| Strip length |
0.33 in |
|
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