Apator Metra E-RM 30, Инструкция по установке и обслуживанию

Страница: 5 / 17

E-RM 30
Installation and service manual M2016/09f[EN]
3. C
ONSTRUCTION AND TECHNICAL DATA
3.1. T
ECHNICAL DATA
Environment temperature 5 to 50 °C
Billing period e.g. chapter 2.1. Type list
Calendar functions month consumption, 12 months history (standard flow and backflow)
Data reading radio and infra-red interface
Protection against cheating backflow detection for example, reversal of the meter
electronic seal – records the data of any manipulation or removal of
device
magnetic pole deletction (> 3 mT) – only E-RM 30.3**
an option to mechanically lock the radio module to the water meter
Backup data daily backup of measured values including real time
Function control automatic
Dimensions 70 x 44 x 71 mm
Power suply lithium battery 3 V
Calculat. battery lifetime e.g. chapter 2.1. Type list
Material polycarbonate
IP code IP64
Class of climate and
mechanical environment B
Class of electromagnetic
environment E1
Working frequency 868 MHz
Transmitting wattage < 5 mW
Class of operating cycle 1 (percent of operating cycle <0,1 %)
Length of transmission < 8 ms
Transmission frequency E-RM 30.**1 (year billing period)
•
60-66 seconds first month after beginning of billing period
•
240-246 seconds rest of the year
E-RM 30.**2 (month billing period)
•
60-66 seconds first 3 days after beginning of billing period
•
240-246 seconds rest of the year
Transmition up to 500 m (with standard antenna, reading carried out by antenna
ZZ P- 868
5 / 17