2-channel relative pressure measuring terminal -1,000…+1,000 hPa (-1…+1 bar) KM3712
Top view
Status LEDs
Hose connection 1
Hose connection 2

KM3712 | 2-channel relative pressure measuring terminal -1,000…+1,000 hPa (-1…+1 bar)

The KM3712 pressure measuring terminal enables direct measurement of two negative pressure values at the hose connections. The pressure is determined as a pressure difference to the ambiance of the KM3712 and is available in the fieldbus as a 16 bit value. The status LEDs indicate proper function or errors such as over-range.

Technical data KM3712
Technology relative pressure measurement
Number of inputs 2
Measuring error 3 % (relative to full scale value)
Measuring range -1,000…+1,000 hPa (-1…+1 bar)
Max. overload 5,000 hPa (5 bar)
Resolution 1 hPa (1 mbar) per digit
Measuring speed 5 ms typ.
Current consumption power contacts – (no power contacts)
Current consumpt. K-bus typ. 15 mA
Bit width in the process image 2 x 3 byte input/output
Medium non-aggressive gases
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. class/installation pos. IP 20/variable
Approvals CE, UL