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WIKA operating instructions, model PGW23.100.11
EN
14391169.01 10/2020 EN/DE
2. Short overview
2.1 Overview
2. Short overview
Pressure element
Movement
Sensor PCB
Laminated safety glass
Connection for antenna
Battery compartment incl. LoRa
®
radio
module
Process connection
2.2 Description
Wherever the process pressure has to be indicated locally and, at the same
time, centralised, web-based remote monitoring is required, the IIoT-ready model
PGW23.100.11 measuring instrument finds its use.
The all welded and robust Bourdon tube measuring system produces a pointer rotation
proportional to the pressure. The process pressure is indicated continuously by the pointer
on the dial. The measuring electronics convert the pointer rotation into an electronic
signal, which is further transmitted to the gateway via the radio module and the antenna.
The transmission of the measured pressure values can be carried out in a customer-
specific IIoT infrastructure. For this, an LPWAN infrastructure is needed (→ see chapter
Battery-operated radio transmission via LoRa
®
is based on LPWAN technology (“low
power wide area network”) to enable high transmission ranges and long battery life.
The IIoT-ready model PGW23.100.11 fulfils all safety-related requirements of the relevant
standards and regulations for the on-site display of the working pressure of pressure vessels,
as well as the requirements of the radio equipment directive for data communication.
WIKA manufactures and qualifies the pressure gauge in accordance with the
requirements of the EN 837-1 European standard in the “S3” safety version. The safety
version is made up of a non-splintering window, a solid baffle wall between measuring
system and dial and a blow-out back.
The transmission of the measured pressure values is carried out in the IIoT platform at
a preset sending interval. The measurement and sending intervals, and also the alarm
