Super Systems 7EK 31080 - Manual (Page 28)

24
GENERAL INFORMATIONS
GENERAL SPECIFICATIONS
Case: PC black color;
self-extinguishing degree: according to UL 746C
Front protection - designed and tested for IP 65 and
NEMA 4X for indoor locations (when panel gasket is
installed).
Test were performed in accordance with CEI 70-1 and
NEMA 250-1991 STD.
Weight: 360 g.
Power consumption: 5.5 W max.
Insulation resistance: > 100 M
W according to
IEC 1010-1.
Dielectric strength: 2300 V rms according to
EN 61010-1.
Display updating time: 500 ms.
Sampling time:
250 ms for linear inputs
500 ms for TC and RTD inputs.
Resolution: 30000 counts.
Accuracy: + 0.2% f.s.v. + 1 digit @ 25 °C ambient tempera-
ture and nominal power supply voltage.
Common mode rejection: 120 dB at 50/60 Hz.
Normal mode rejection: 60 dB at 50/60 Hz.
Electromagnetic compatibility and safety require-
ments: This instrument is marked CE.
Therefore, it is conforming to council directives 89/336/
EEC (reference harmonized standard EN 50081-2 and
EN 50082-2) and to council directives 73/23/EEC and
93/68/EEC (reference harmonized standard EN 61010-1).
Installation category: II
Pollution degree: 2
Temperature drift: (CJ excluded)
< 200 ppm/°C of span for mV and TC ranges 1, 3, 5, 6, 19,
20, 21, 22.
< 300 ppm/°C of span for mA/V
< 400 ppm/°C of span for RTD range 10, 26 and TC range
0, 2, 4, 27 and 28.
< 500 ppm/°C of span for RTD range 9 and TC ranges 7,
8, 23, 24.
< 800 ppm/°C of span for RTD range 25.
Operative temperature: from 0 to 50 °C.
Storage temperature: -20 to +70 °C
Humidity: from 20 % to 85% RH, non condensing.
Protections:
1) WATCH DOG circuit for automatic restart.
2) DIP SWITCH for protection against tampering of
configuration and calibration parameters.
Control output updating time:
- 250 ms when a linear input is selected
- 500 ms when a TC or RTD input is selected.
MAINTENANCE
1) REMOVE POWER FROM THE POWER SUPPLY
TERMINALS AND FROM RELAY OUTPUT
TERMINALS
2) Remove the instrument from case.
3) Using a vacuum cleaner or a compressed air jet (max.
3 kg/cm 2 ) remove all deposit of dust and dirt which
may be present on the louvers and on the internal
circuits trying to be careful for not damage the
electronic components.
4) To clean external plastic or rubber parts use only a
cloth moistened with:
- Ethyl Alcohol (pure or denatured) [C
2
H
5
OH] or
- Isopropil Alcohol (pure or denatured) [(CH
3
)
2
CHOH]
or
- Water (H
2
O)
5) Verify that there are no loose terminals.
6) Before re-inserting the instrument in its case, be sure
that it is perfectly dry.
7) re-insert the instrument and turn it ON.
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