User manual - METER SRT-457
Display
LED, 4 digit, 57mm height, red
Data memory
non-volatile memory, EEPROM type
Protection level
F-type casing:IP 65
T-type casing:IP 67
Housing type
Housing material
Wall mounted, T-type or F-type
ABS + fibreglass
Housing dimensions
F-type casing: 213 x 185 x 118.2 mm
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 diameter
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
Ω
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 is a class A unit. In a residential or a similar area it can cause radio
frequency interference. In such cases the user can be requested to use
appropriate preventive measures.
4.
DEVICE INSTALLATION
The unit has been designed and manufactured in a way assuring a high level of user
safety and resistance to interference occurring in a typical industrial environment. In order to
take full advantage of these characteristics installation of the unit must be conducted correctly
and according to the local regulations.
- Read the basic safety requirements on page 3 prior to starting the installation.
- Ensure that the power supply network voltage corresponds to the nominal
voltage stated on the unit s identification label.
- The load must correspond to the requirements listed in the technical data.
5
!
!
