User manual - METER SRT-L70
- Do not use the unit in areas threatened with excessive shocks, vibrations, dust,
humidity, corrosive gasses and oils.
- Do not use the unit in areas where there is risk of explosions.
- Do not use the unit in areas with significant temperature variations, exposure to
condensation or ice.
- Do not use the unit in areas exposed to direct sunlight.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must
be considered (e.g. by using a ventilator).
The unit is designed for operation in an industrial environment and must
not be used in a household environment or similar.
2.
GENERAL CHARACTERISTICS
meter is equipped with Pt 100/Pt 500/Pt 1000 type input, with automatic
connection recognition (two, three or four wire sensor). The measurement range spans from
-100 °C to +600 °C, and input is fully linearised accordingly to PN-A2:1999
standard. Result is showed on 4-digit LED display.
Thanks to modern SMPS included in
, it can be powered from wide range of
supply voltages. The device is equipped with sensor supply output, and 3 relay outputs (2 NO,
and 1 NONC) which can be loaded up to max. 8A/250V.
The device has 5 buttons being used for main presets programming, additionally all
programming operations can be done using IR remote controller (IR remote is not a part of
in RS-485 communication interface allows user to read all internal registers, and
reconfigure device via PC with Modbus RTU protocol.
can be used for controlling and regulation of processes need proportional and
threshold control like: temperature processes (heating or cooling), valves controlling or other.
3.
TECHNICAL DATA
Power supply voltage
(depending on version)
External fuse (required)
Power consumption
85...
230
...260V AC/DC; 50 ÷ 60 Hz
(separated)
19...
24
...90V DC and 16...
24
...70V AC (separated)
T - type, max. 2 A
max. 6,5 VA @ 85 ÷ 260V AC/DC
max. 6,5 VA @ 16V ÷ 70V AC
max. 6,5 W @ 19V ÷ 90V DC
Measurement input
Pt 100/ Pt 500/Pt 1000 type with automatic connection
recognition (2, 3 or 4-wires)
Measurement range
-100°C ÷ +600°C
Measurement accuracy
± 0,1% @ 25°C; ± one digit
Measurement wires resistance
max. 20
Ω
(every wire)
4
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