E-RM 30
Installation and service manual
M2016/09f[EN]
1. I
NTRODUCTION
Radio madule E-RM 30 scans the data from specially designed water meter, processes them, save to the
memory and transmits data via radio signal. Data sent by radio interface can be read without entering the flat
and even entering the building. E-RM 30 together with electronic heat cost allocators E-ITN 30 protect your
privacy and save your time due to remote data reading.
E-RM 30 rod antenna features a very good efficiency. Deu to this high-quality signla it is possible to read
data without entering the building eve in case of installation in the shaft of multiplestorey building. Data
reading can be made by billing company employee using mobile receiving unit. Data can be also read by
central reading system CRS 40 permanently installed in the building if required. If radio heat cost allocators
E-ITN 30 are also used, data are read simultaneously.
Every user can control current value on analogue dial of water meter. In contrast to the traditional water
meter, radio module E-RM 30 distinguish the direction of water flow – it is thus possible to detect
manipulation with water meter (its turning).
The radio module can be of course secured by conventional mechanical seal against its removal from water
meter. The radio module is equipped with an electronic seal that allows you to identify unauthorized
manipulation and record the exact date. Furthemore, some modelas can detect attemps to manipulate the
water meter by the use of an externam magnetic field (e.g. the use of a strong magnet). Information about
such manipulation is transmitted in radio signal.
Month consumptions for forward and back flow for past 12 months can be read from the radio module
memory via infra-red interface.
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Illustration 1: Radio module E-RM 30 with water meter JS
radio module E-RM 30
water meter JS
antenna
IR diode for infra-red
reading
preparation for
mechanical seal
water meter dial
reading sensors
