The WTW IQ Sensor Net EX-Isolated amplifier is installed outside the zone and supplies the monitor within the zone with it's own intrinsic power circuit. In addition, it transfers the meaured value via an mA output or via HART (optional). The WG 21 is also available with a 24 V AC/DC auxiliary voltage and can therefore be integrated into the IQ SENSOR NET.
WG 21 A7 - EX isolated amplifier - SKU: 109446EX
WG 21 A7 Opt. 336 - EX isolated amplifier, with auxiliary voltage - SKU: 109447EX
WG 21 A7 Opt. 470 - EX isolated amplifier, with HART - SKU: 109448EX
WG 21 A7 Opt. 336, 470 - EX isolated amplifier, with auxiliary voltage & HART - SKU: 109449EX