Analog Input
KL3228
+ R6
+ R8
+ R1
+ R2
+ R2
+ R4
Top view
Contact assembly
Connection
+ R5
+ R7
Error LED1
Error LED5
Error LED3
Error LED7
Error LED2
Error LED4
Error LED6
Error LED8
0 V
0 V
Power contact 0 V
Power contact
+24 V
+24 V
+R
+R
+R
+R
KL3228 | 8-channel input terminal PT1000, Ni1000 (RTD)
The KL3228 analog input terminal enables connection of eight resistance sensors. The Bus Terminal’s circuitry can handle sensors using the 1-wire technique. Linearisation over the full temperature range is realised with the aid of a microprocessor. The temperature range can be selected freely. The Bus Terminal’s standard settings are: resolution 0.1 °C within the temperature range of Ni1000 sensors. The error LEDs indicate sensor faults (e.g. a broken wire).
| Technical data | KL3228 | KS3228 |
|---|---|
| Number of inputs | 8 |
| Power supply | via the K-bus |
| Sensor types | PT1000, Ni1000, PTC |
| Connection method | 1-wire |
| Temperature range | -50…+150 °C (PT sensors); -50…+150 °C (Ni sensors) |
| Resolution | 0.1 °C per digit |
| Conversion time | ~ 750 ms |
| Measuring current | ~ 0.5 mA typ. |
| Measuring error | ~ ±1 °C, depending on wiring |
| Electrical isolation | 500 Vrms (K-bus/signal voltage) |
| Current consumption K-bus | typ. 85 mA |
| Bit width in the process image | input: 8 x 16 bit data (8 x 8 bit control/status optional) |
| Configuration | no address setting, configuration via Bus Coupler or controller |
| Weight | 75 g |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27/29 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos. | IP 20/variable |
| Pluggable wiring | for all KSxxxx Bus Terminals |
Product announcement |
estimated market release 1st quarter 2009 |