KL3444 | Bus Terminal, 4-channel analog input, current, 0…20 mA, 12 bit, single-ended

KL3444 | Bus Terminal, 4-channel analog input, current, 0…20 mA, 12 bit, single-ended

The KL3444 analog input terminal processes signals in the range between 0 and 20 mA. The current is digitized to a resolution of 12 bits and is transmitted, in an electrically isolated form, to the higher-level automation device. In the KL3444, the four inputs are 2-wire versions and have a common ground potential. The reference ground of the inputs is the internal ground. Overload is detected. The terminal status is relayed to the controller via the K-bus. The LEDs indicate the data exchange with the Bus Coupler as well as overload or wire breakage.

Number of inputs 4

Power supply via the K-bus

Signal current 0…20 mA

Technology single-ended

Internal resistance < 85 Ω

Common-mode voltage UCM –

Conversion time ~ 2 ms

Resolution 12 bit

Measurement error/ uncertainty < ±0.3 % (relative to full scale value)

Surge voltage resistance 30 V DC

Electrical isolation 500 V (K-bus/signal voltage)

Current consumption power contacts –

Current consumption K-bus typ. 85 mA

Bit width in the process image input: 4 x 16 bit data (4 x 8 bit control/status optional)

Configuration no address or configuration setting

Special features –

Weight approx. 55 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

EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4

Protect. rating/installation pos. IP20/variable

Approvals/markings CE, UL, ATEX, IECEx, DNV GL

Pluggable wiring for all KSxxxx Bus Terminals

Ex marking ATEX:

II 3 G Ex ec IIC T4 Gc

IECEx:

Ex ec IIC T4 Gc

>>> Refer to technical document: KL344x_KL345xen