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EDS · Remote 4G data logger

Metalog 4G

Telemetry for any 4 to 20 mA or Modbus instrument: four analogue inputs, an RS485 port and a 4G modem in one compact logger.

Request pricing Datasheet
Metalog 4G
Pictured: Metalog 4G
4 × 4 to 20 mAAnalogue inputs for two wire or three wire transmitters
RS485 Modbus RTUA shared two wire bus, or transparent pass through
4G cellularBuilt in modem with an SMA female 50 Ω connector
9 to 28 V DCSuits 12 V and 24 V site supplies, and powers your sensors
USB setupConfigured on site from a laptop
IP5888 × 60 × 25 mm, rated −20 to 80 °C

Metalog 4G is a compact remote data logger for water and wastewater networks. It reads up to four 4 to 20 mA transmitters and multiple RS485 Modbus RTU instruments, and returns the data over the 4G cellular network.

Level, pressure and flow transmitters all land on one 8 way terminal block. The 9 to 28 V DC supply range suits common 12 V and 24 V site supplies, and when the logger is fed from its DC jack, the V+ terminal powers loop powered transmitters at the same voltage.

Every setting is made on site from a laptop over USB, and two status lights show at a glance whether the logger is in setup, armed or sending.

Four analogue inputsChannels Ai0 to Ai3 accept 4 to 20 mA signals from two wire loop powered or three wire transmitters.
RS485 Modbus RTUPoll instruments on a shared two wire bus, or use transparent mode to pass serial data straight through the logger.
Powers your sensorsRuns from 9 to 28 V DC through the terminal block or a 5.5 × 2.5 mm DC jack. Fed from the jack, V+ supplies your transmitters at the same voltage.
4G cellular telemetryA built in 4G modem takes an antenna on its SMA female connector, directly or through an extension cable. The SIM sits in a hinged slot on the rear panel.
Simple setup on siteConfigure from a laptop over USB. A red light shows setup, disarmed and armed; a green light shows start up and each message being sent.
Compact and panel mountedAn 88 × 60 × 25 mm IP58 body, fixed to a flat wall or panel through keyhole slots in both side flanges.

One terminal block, every connection.

Power, analogue and RS485 wiring all land on a single 8 way terminal block, with the USB configuration port and power switch on the same face.

  1. RS485
    1. A+Pin 8: RS485 data A+
    2. B−Pin 7: RS485 data B−
  2. Analogue input
    1. Ai3Pin 6: Analogue input 4, 4 to 20 mA
    2. Ai2Pin 5: Analogue input 3, 4 to 20 mA
    3. Ai1Pin 4: Analogue input 2, 4 to 20 mA
    4. Ai0Pin 3: Analogue input 1, 4 to 20 mA
  3. 9 to 28 V DC
    1. GNDPin 2: Ground: supply negative, and the three wire 0 V common
    2. V+Pin 1: Power in, or sensor power out
Terminal block: 8 way, pin numbers under each terminal.
  1. Power in or outWire 9 to 28 V DC to V+ and GND, pins 1 and 2. Or plug the supply into the DC jack, and V+ then powers your sensors at the supply voltage.
  2. Analogue inputsA two wire transmitter runs from V+ to its input, and all loops share V+. A three wire transmitter on its own supply shares 0 V with the logger GND.
  3. RS485A+ to A+ and B− to B− on every device, daisy chained along one bus, with a unique address for each Modbus device.

Switch the logger off before making or changing connections, and check each transmitter's polarity and supply voltage against its own datasheet.

Where it works.

Pump stations

Wet well level from a submersible level transducer.

Reservoirs

Storage level in tanks and reservoirs.

Network pressure

Pressure transmitters at critical points in the reticulation.

Flow metering

Analogue or Modbus outputs from flow meters.

Specifications

Metalog 4G in detail.

Sensor interface

Analogue inputs4 channels, Ai0 to Ai3, 4 to 20 mA (default)
TransmittersTwo wire, loop powered from the logger V+, or three wire on an external supply
Ports1 × RS485, two wire (A+, B−)
Serial modesModbus RTU, or transparent RS485 transmission

Telemetry

Cellular4G
AntennaSMA female connector, 50 Ω
SIM cardHinged slot on the rear panel
ConfigurationOn site, from a laptop over USB

Power

Supply voltage9 to 28 V DC
Terminal inputV+ and GND, pins 1 and 2
DC jack5.5 × 2.5 mm, 2.5 mm centre pin
Sensor powerV+ output at supply voltage when powered from the DC jack
Power switchOn / off

Enclosure and environment

Dimensions88 × 60 × 25 mm (W × H × D)
ProtectionIP58
Operating temperature−20 to 80 °C
MountingSide flanges, 10 mm wide, with keyhole slots
Terminal block8 way, 3.81 mm pitch
IndicatorsACT (red) and SRV (green) LEDs

Status lights

Setup modeACT flashes every 600 ms
DisarmedACT flashes every 6 s
ArmedACT flashes twice every 3 s
Starting or sendingSRV on
Start up or send completeSRV off

Ordering

ModelEDS-Metalog-4G-4CA
Matched to your siteTransmitters, antennas and enclosures, by the EDS team

Specifications are subject to change without notice. Full details are in the Metalog 4G datasheet.

Put your instruments on 4G.

Tell us the site, the instruments and the supply you have. Our team can match transmitters, antennas and enclosures to your site.

Start an enquiry 1300 721 683