Labkotec SandSET-1000 12 VDC, Инструкция по установке и эксплуатации

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SandSET-1000 12 VDC Sludge Alarm Device D15649_E-2
Installation and Operating Instructions
Copyright © 2019 Labkotec Oy 10/13 We reserve the right for changes without notice
7 TECHNICAL DATA
SandSET-1000 12 VDC control unit
Dimensions 175 mm x 125 mm x 75 mm (L x H x D)
Enclosure IP 65, material polycarbonate
Ambient temperature -
25 ºC…+50 ºC
Supply voltage 11-17 VDC
Fuse 5 x 20 mm 315 mAT (IEC/EN
60127-2/3)
The device is not equipped with a mains
switch
Power consumption Max. 1,2 VA.
Typical (no alarms) 0.9. VA.
Sensors One Labkotec SET sensor (SET/S2)
Max. resistance of the
current loop between the
control unit and a sensor 75 Ω .
Relay outputs Two potential-free relay outputs
250 V, 5 A, 100 VA
Operational delay 5 sec or 30 sec.
Relays de-energize at trigger point.
Operation mode selectable for increasing
or decreasing level.
Electrical safety
IEC/EN 61010-1, Class II , CAT II /
III
Insulation level
Sensor / Mains supply
voltage 375V (IEC/EN 60079-1)
EMC
Emission
Immunity
IEC/EN 61000-6-3
IEC/EN 61000-6-2
Ex-classification
Special conditions (X)
ATEX
IECEx
II (1) G [Ex ia] IIC
(Ta = -25
 C…+50 
C)
VTT 04 ATEX 031X
IECEx VTT 10.0003X
Electrical parameters
Characteristic curve of the
output voltage is trapezoidal
See table 2. Um = 23 V U
o
= 14,7 V
I
o
= 55 mA P
o
= 297 mW
R = 404 Ω
Manufacturing year:
Please see the serial number
on the type plate xxx x xxxxx xx YY x
where YY = manufacturing year
(e.g. 19 = 2019)
Due to non-linear characteristics of the sensor voltage, the interaction of
both, capacitance and inductance, must be taken into account. The
table below indicates the connecting values in explosion groups IIC and
IIB. In explosion group IIA the values of the group IIB can be applied.
Max. permissible value Combined Co and Lo
Co Lo Co Lo
II C 608nF 10 mH
568nF
458 nF
388 nF
328 nF
258 nF 0,15 mH
0,5 mH
1,0 mH
2,0 mH
5,0 mH
II B
3,84μF
30 mH
3,5 µF
3,1 µF
2,4 µF
1,9 µF
1,6 µF 0,15 mH
0,5 mH
1,0 mH
2,0 mH
5,0 mH
L
o
/R
o
= 116,5 µH/Ω (IIC) and 466 µH/Ω (IIB)
Table 2. SandSET-1000 12 VDC electrical parameters
SET/S2 sensor
Principle of operation Ultrasonic
Enclosure IP68
Materials: PP, PVC, AISI 304, AISI 316
and NBR rubber
Ambient temperature 0
ºC…+60 ºC
Supply voltage Approx. 12 VDC from SET control unit
Cable Fixed oil resistant PVC cable 3 x 0,5 mm
2
,
standard length 5 m.
Weight Approx. 450 g
EMC
Emission
Immunity
IEC/EN 61000-6-3
IEC/EN 61000-6-2
Ex-classification
ATEX
IECEx
II 1 G Ex ia IIB T5 Ga
VTT 07 ATEX 0051X
IECEx VTT 10.0002X
Electrical parameters U
i
= 16 V I
i
= 80 mA
P
i
= 320 mW C
i
= 3 nF
L
i
= 80
μH
Manufacturing year:
Please see the serial
number on the type plate xxx x xxxxx xx YY x
where YY = manufacturing year
(e.g. 19 = 2019)
Special conditions concerning Ex-classification (X):
- Ambient temperature -25
ºC…+60 ºC
- Shielded sensor cable and extra wires shall be connected to
equipotential ground
- If sensor cable have to be extended, please use LJB2-78-83 or
LJB3-78-83 junction box. The junction box shall also be
connected to equipotential ground.
Figure 9. Dimensional drawing of SET/S2 sensor