32607-NI Magnetic Level Indicators Ex Proof Standard Transmitter

The transmitter is mounted outside of the float chamber opposite to the indication rail. The magnet inside the float activates the reed switches in the transmitter, depending on the level of liquid in the float chamber, thereby changing the effective value of a resistance network. 

The resulting voltage output is converted by an internal electronic circuit to a 4-20 mA signal. If the liquid level rises above the measuring range of the transmitter (30 mm) the output signal jumps to 115% (ca. 22.5mA) and remains on that limit. 

This transmitter is compatible with Zones 1 and 2, gas groups IIA, IIB, and IIC, and temperature classes T1 to T4. The transmitter must be connected with a certified energy limiting device (e.g. Zener barrier) installed in a safe area. 

This device guarantees the electrical limit values specified below, including the cable. The metal housing of the transmitter must be connected to protection ground.