|
Memory |
|
Ram |
128K standard (512K optional) |
|
Real Time Clock |
Accuracy
Sync-in (optional)
Sync-out (optional) |
Better
than 7 seconds in 10 days
over full temperature range
A voltage free contact closure
minimum 5ms on the half hour
50ms contact closure (may be
passed to Sync-in of another meteor) |
|
Data Ports |
Modem
Interrogation port
Concentrator port |
V24/RS232
V24/RS232
20mA current loop (4 wire) |
|
Meter
Inputs |
Channels
Voltage source
Current at 15V
Max operation frequency
Frequency rejection |
16/32
contact closure
V24/RS232
15VDC (protected at 20V)
4mA typical
Will not respond to >20Hz |
|
Outputs |
Watchdog relay
Summation (optional) |
Two
changeover contacts
(rated: 100VDC, 1A)
8/16 solid state class Y
(60VDC, 100mA) |
|
Supply Input |
Nominal
Voltage range
Input current
Fuse rating |
48VDC
or 110VDC (AC options on request)
42 to 137VDC
150mA (48VDC)
60mA (110VDC)
300mA (mounted on PSU) |
|
Batteries |
Type
Hold up time (Memory/clock) |
AA
Alkaline
>10 days (28 days on request) |
|
Enviroment |
Temperature
Humidity
Electrical |
+5deg.
C to +55 deg.C
10% to 95% non-condensing
to CEGB EES 1989
Meter Inputs class Y
Supply Inputs class Z
Watchdog contacts class Z
Telephone line class Z |
|
Mechanical |
Mounting
Panel height
Depth |
19
inch rack type
4 U (7 inches)
13 inches plus sockets |