Basler Electric BE1-700 - Manual (Page 25)

Real-Time Clock
Accuracy: 1 second per day at 25
°C (free running) or
±2 milliseconds (with IRIG synchronization)
Resolution: 1 millisecond
Date and Time Setting Provisions: Front panel, communications port, and IRIG. Leap
year and selectable daylight saving time
correction provided.
Communication Ports
Interface
Front RS-232: 300 to 19200 baud, 8N1 full duplex
Rear RS-485: 300 to 19200 baud, 8N1 half duplex
Rear Ethernet: IEEE 802.3 (10BaseT)
Response Time (RS-232): <100 ms for metering and control functions
Display
Type: Two line, 16 character alphanumeric LCD (liquid
crystal display) with LED (light emitting diode);
backlight
Operating Temperature: –40 °C (–40°F) to +70°C (+158°F).
Display contrast may be impaired at temperatures
below
–20°C (–4°F).
Isolation
Meets IEC 255-5 and exceeds IEEE C37.90 one minute dielectric test as follows:
All Circuits to Ground
*:
2,000 Vac or 2,828 Vdc
Input Circuits to Output Circuits: 2,000 Vac or 2,828 Vdc
Communication Ports to Ground†: 700 Vdc for one minute
* Excludes communication ports.
† Ethernet port excluded from dielectric tests.
Surge Withstand Capability
Oscillatory
IEEE Std C37.90.1-2002 - IEEE Standard Surge Withstand Capability (SWC) Tests for Relays and Relay
Systems Associated with Electric Power Apparatus (Excludes front panel RS-232 communication port.
Shielded RJ-45 cable is required for the Ethernet port.)
Fast Transient
Qualified to IEEE Std C37.90.1-2002 - IEEE Standard Surge Withstand Capability (SWC) Tests for
Relays and Relay Systems Associated with Electric Power Apparatus. (Due to surge suppression
components, excludes application across open output contacts. Excludes front panel RS-232
communication port. Shielded RJ-45 cable is required for the Ethernet port.)
Radio Frequency Interference (RFI)
Qualified to IEEE Std C37.90.2-2004 - IEEE Standard Withstand Capability of Relay Systems to Radiated
Electromagnetic Interference from Transceivers.
Electrostatic Discharge (ESD)
IEEE Std C37.90.3-2001 - IEEE Standard Electrostatic Discharge Test for Protective Relays.
Shock
Qualification: IEC 255-21-2, Class 1
9376700990 Rev M BE1-700 General Information 1-13