Logger for monitoring the operating pressure of natural gas

EP-LOG is a DataLogger designed to monitor the operating pressure in low pressure natural gas distribution networks (UNI/TR 11631:2016 standard).

EP-LOG can connect to the SCADA centre in several ways including: GSM/GPRS, UMTS, LTE, SMS, Radio Modem-169MHz, NB-IoT, LoraWAN. EP-LOG can be configured and updated both locally and remotely in order to adapt its behav- iour to changing regulations.

EP-LOG can be installed on pole or wall mounted boxes and can be supplied with a pressure cable for underground gas outlets or with a connection for off-road gas outlets, guaranteeing maximum installation flexibility..



The data that the EP-LOG makes available includes:

  • Pressure
  • Temperature
  • Time intervals with out-of-threshold pressure
  • Out-of-threshold temperature indication
  • Real-time communication for a limited period of time



The SCADA collects data from all EP-LOGs and calculates the following parameters:

  • Plant efficiency parameter (Peff) Minimum pressure
  • Maximum pressure
  • Average pressure
  • Average squared deviation Out-of-threshold pressure time


EP-LOG is ATEX certified and can be installed in potentially explosive areas.
The battery life exceeds 5 years with standard GSM/GPRS communications, i.e. by communi- cating the daily historic data to the SCADA once a day. In the event of an alarm, immediate com- munication with the SCADA itself is activated. The batteries are housed in such a way that they can be easily replaced.


Designed and assembled in Italy

Battery life > 5 years with standard communications



Environmental Conditions

Temperature range: -25°C < T < +60 °C Humidity 90% without condensation


IP67 enclosure in thermoplastic mould Dimensions 190 x 115 x 50 mm
Weight Kg. 1.6




  • Standard input from 100 mBar piezoresistive relative pressure sensor, accuracy < 0.25%, standard process connection 1⁄4 G male.

  • PT1000 class A temperature sensor input (optional)

  • Second pressure input (optional)

  • 2 digital inputs (optional)


IP67 enclosure in thermoplastic mould
Dimensions 190 x 115 x 50 mm
Weight Kg. 1.6


Temperature range: -25°C < T < +60 °C
Humidity 90% without condensation


Durata batteria > 5 anni con comunicazioni standard


Serial optical port in compliance with EN 62056-21
Two internal expansion ports for communication circuit boards. Internal modem: GSM/GPRS. Optional: UMTS modem, LTE modem. 169MHz, Lora-WAN 868MHz Radio, NB-IoT Radio.


MODBUS, IEC 870-5-104, WM-Bus, Lora-WAN