MemoRail Modbus Transmitter Product Highlight

June 14, 2019

Compact multi-parameter transmitter for process analysis

MemoRail Modbus is a compact, digital transmitter available with up to 2 sensor inputs. It is designed for use with the SE 740 optical oxygen sensor and Memosens sensors for the measurement of pH, ORP, conductivity, oxygen, and temperature. Up to 32 devices can be operated in parallel using Modbus RTU. Device address, link parameters, and data rate are selectable.

MemoRail Modbus is a low-cost, space-saving, alternative to traditional liquid analyzers.

QUICK SPECS

Temperature: -14 … 149 °F (-10 … 65 °C)
Power Supply: 4-wire (24 VDC)
Inputs: Up to two channels, Memosens sensors as well as digital SE 740 optical oxygen sensor.
Outputs: Modbus RTU
Mounting: DIN Rail (35 mm Top Hat)

FEATURES

Simple device setup using dip switches for device address, link parameters, and data rate
LEDs for the indication of device and sensor status/health
Modbus RTU Output
- Process values and diagnostic data transmitter
- Up to 32 can be operated in parallel (up to 64 total sensors)
- Sensor calibration can be performed from the control system

MemoRail Modbus Transmitter Anatomy

1 – POWER INPUT:

4-wire (24 VDC)

2 – OUTPUT:

Modbus RTU

3 – CONVENIENT DIAGRAMS: Setup and Wiring

Wiring diagram and DIP switch configuration printed on the device

4 – DIP SWITCHES: Simple device configuration

Place DIP switches in the proper position for device address and data rate

5 – STATUS INDICATION: LED Lights

Steady Green	Power/OK
Steady Red	Device error, repair required
Flashing Red	Sensor failure or communication fault
Blinking Red	Sensor parameter error

6 – SENSOR INPUTS: Connections for two sensors (the dual-channel version is shown)

Connects to SE 740 optical oxygen sensor and any Memosens pH/ORP, conductivity, or oxygen sensor

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