Introduction
DDSY198 is the newest single phase BS type STS certified prepaid keypad energy meter of ZCM. It can realize the functions of active energy measuring and pre-payment and post-paid mode control. The transfer of secure data from a point of sale to the meter is carried out via a 20 digits number generated according to the STS (Standardized Transfer Specification) encryption protocol. It complies with IEC62052-11, IEC62053-21, IEC62053-61, IEC 62055-41, IEC62056-21 Etc.

Technical Data
Object | Value |
TYPE | Single Phase Smart STS Keypad Prepaid Meter |
Standards Reference | IEC62052-11, IEC62053-21, IEC60068-2-27 IEC62055-41, IEC62056-21, IEC60068-2-6, ISO 14001:2004, ISO9001:2000. |
Class | Class 1 |
Current Rating | 5 / 60A, 10(80)A |
Starting Current | < 0.4% Ib (COS Ф = 1) |
Energy Pulse | LED 1000 pulses/kWh |
Operating Voltage | 240 Volts (-15%, +15%) |
Frequency | 50Hz ± 5% |
Wiring Connection | Symmetric Connection |
LCD Digits | 6 + 2 |
Operation Temperature Range | -25°C + 70°C |
Maximum Operation Temperature Range | -40°C + 70°C |
Humidity | Less than or equal to 95% of normal relative humidity |
Installation Type | BS |
Surge | 1,2/50μs (IEC60060) -6kV |
Tension alternative | 50 Hz pendant 60s (CEI61036) 4 kV |
Material | ABS flame proof |
IP Protection | IP 54 |





