Acromag 989EN-4016 and 993EN-4016 totalisers

Many applications call for converting flowmeter pulse or analog DC current signals to Ethernet for extended remote monitoring and control applications.

For flowmeters with a pulse output, Acromag’s 989EN-4016 16-channel discrete I/O with counter/timers act as Modbus TCP/IP transmitters for instrumentation and control, remote monitoring and sub-metering applications. Applications include water usage sub-metering, liquid filling and transfer processes, including the use of discrete outputs for limit alarms and control.

The 989EN-4016 has eight configurable counter/timer channels with 32-bit up/down pulse event counters, 16-bit periodic timers for last pulse state and momentary latch alarms for each counter. It also has rugged operational features such as overtemperature, overcurrent and overvoltage output protection and wide operating temperature.

For flowmeters with a 4–20 mA current loop output, Acromag’s 993EN-4016 16-channel DC current input to Modbus TCP/IP transmitter with configurable integration/totalisation functions is used. Each channel A/D is 16-bit resolution with a fast 8 ms scanning rate for all 16 channels. Sample averaging is software configurable as well as scaling registers on all channels along with automatic calibration and self-test feature.