SATEC EM920 Installation Manual - Manual (Page 34)

Appendix: Technical Specifications
28
Protocols MODBUS RTU/ASCII and
DNP3.0
USB connector Cable terminated with USB
type A
Input Isolation 2500V AC @ 1mn
Time code signal Demodulated (pulse-width
coded)
Signal Level Unbalanced 5V
Terminals for wires size 2 x 2.5 mm 2 twisted cable
Recommended cable 51Ohm low loss - RG58A/U
(Belden 8219 or equivalent),
TNC connector
IRIG-B
ETH-TX
Optional module
5
Recommended GPS time code
generator Masterclock GPS-200A
Console Display Unit
Display Panel
LCD graphic bright display Multiple screens display
Resolution 340 x 220 dots
Size 4'
Operational temperature -20°C to + 70°C
Display
Backlit LCD display screen Timeout operation
LEDs Energy LED Pulsing 2 x RED (WATT & VAR)
Communication IR port, COM1 ANSI C12.18
Navigator
buttons
Accessible Buttons – SCROLL,
SELECT/ENTER
2
Sealed Button – DEMAND RESET 1
Under cover Button – TEST mode 1
Real Time Clock
5 ppm Accuracy @ 25 ° C 2.7 minute / year
RTC backup data retention 5 years
Log Memory
Non-volatile memory
(20years Data
retention) For energy and tariff registers
logging, EV-PQ-DATA-WV log
16 MB
Environmental Conditions
Operational temperature -40 ºC to 75 ºC
Optional LCD Operational
temperature -20 ºC to 70 ºC
Storage temperature -40 ºC to 85 ºC
Humidity 0 to 95% non-condensing
Construction
Socket Meter base enclosure ANSI C12.10 for electronic
meter
Size: ∅ 6" x L 7" x base ∅ 7"
Weight 4 lb
Enclosure
With sealing cover
Mounting ANSI C12.10 – FORM 9S/9A
5 Factory/Meter shop installable