Electrical Connection - Mettler Toledo M100 Guía De Configuración Rápida

4

Electrical Connection

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Note: Power off device during electrical connection.
1. Switch off supply voltage.
2. Connect mains supply (14 to 30 V DC) to the terminals Aout+, HART+ and Aout–.
HART–. Notice polarity.
3. Connect analog output and HART signal to terminals HART+ and HART–.
4. Connect digital input for switching transmitter in Hold state to terminals DI+ and DI–.
5. Connect analog input signal 4 to 20 mA for pressure compensation to terminals Ain+
and Ain–.
Port
en
36
Terminal Definition
Port Interface for service e.g. firmware update.
Notice polarity.
Aout+, HART+
Aout–, HART– Power connection 14 to 30 V DC,
Analog output and HART signal.
DI+ and DI– Digital input (for switching transmitter in
Hold state).
ISM-DATA Sensor input, see "Safety and Intended
ISM-GND Use" chapter on Page 34". Wired by
the factory. Do not disconnect.
Ain+ and Ain– Analog input 4 to 20 mA (for pressure
compensation).