MT339-I
Rev.0.3 08/04/2022
4 - 25
Document classified as: 2 - Company Confidential
1
Features
MODUS
is a type 1 gas volume converter with two conversion channels
1
with integrated data-logger.
For each channel, the impulses from the volume meter, the pressure and the temperature of the gas are
acquired and the compressibility factor K and the conversion coefficient C at the reference
thermodynamic conditions are calculated.
If not specified as parameter MODUS calculates the heat of combustion Hs.
Communication with the
SAC
takes place via the
GPRS / GSM
network.
Data download, configuration setting and firmware update are possible both remotely and via local
connection
An optical interface compliant with CEI EN 62056-21 is available for local communication with the
equipment
The human-machine interface consists of a liquid crystal display and a keyboard through which it is
possible to navigate through the data presentation menus.
The equipment has the following interface channels towards the field:
3 Pressure inputs (Absolute/relative) from integrated transducers
2 Temperature input from a two wires PT1000 sensor
2 Auxiliary analog inputs with 0÷5 Volt input range
10 Digital inputs
4 Digital outputs
1 RS485 Expansion line
MODUS
has been designed to ensure maximum installation versatility and to be powered by a
continuous 12VDC power supply via a dedicated
M-POWER
power supply, as well as a battery.
Three different versions are available:
A
,
B
,
T
.
MODUS A
is equipped with a GSM/GPRS integrated modem and is battery powered.
MODUS B
is not equipped with an integrated modem.
It is designed for the use of the
M-POWER
remote power supply (installed in a safe area) to
which it is possible to communicate the acquired data via an RS485 serial line.
MODUS T
is equipped with an integrated GSM/GPRS modem (different from the one for
MODUS
A
). It is designed for the use of the
M-POWER
remote power supply (installed in a safe area) to
which it is possible to communicate the acquired data via an RS485 serial line.
1
Second conversion channel can only be viewed through the LCD user interface, and are therefore not available
local data interface (optical interface, RS485) or remote (GSM / GPRS modem) communication.
