User manual - METER SUR-457
Display
(depending on version)
LED, 4 digit, 57 mm height, multicolor (red
green)
LED, 4 digit, 57 mm height, red (
l
= 660 nm)
LED, 4 digit, 57 mm height, pure green (
l
= 520 nm)
LED, 4 digit, 57 mm height, blue (
l
= 470 nm)
Data memory
non-volatile memory, EEPROM type
Protection level
T-type casing:IP 67
Housing type
Housing material
Wall mounted, T-type
ABS (lower part) + PC (upper part)
Housing dimensions
T-type casing: 230 x 140 x 96.5 mm
Operating temperature
(depending on version)
0°C to +50°C
or -20°C to +50°C
Storage temperature
(depending on version)
-10°C to +70°C
or -20°C to +70°C
Humidity
Altitude
5 to 90% no condensation
up to 2000 meters above sea level
Screws tightening max. torque
0,5 Nm
Max. connection leads cross section 2,5 mm
2
Safety requirements
according to: PN-EN 61010-1
installation category: II
pollution degree: 2
voltage in relation to ground: 300V AC
insulation resistance
: >20M
W
insulation strength between power supply and
input/output terminal: 1min. @ 2300V
insulation strength between relays terminal:
1min. @ 1350V
EMC
according to: PN-EN 61326-1
This equipment is not intended for use in residential environments and may
not provide adequate protection to radio reception in such environments.
7
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