Oven SAU-M6 Bedienungsanleitung
1st Veshnyakovsky pr., 2
Moscow, Russia, 109456
Phone: (495) 1748282, 1710921
Р.№
Зак. №
SAUМ6
Three-channel level
monitoring device
Passport and user manual
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CONTENTS
1. Purpose ............................................................................................................... 2
2. Performance specification ..................................................................................... 3
3. Mode of functioning and construction of the device ................................................. 4
4. Safety measures .................................................................................................. 10
5. Mounting and preparation for work ........................................................................ 10
6. Setting up the device ............................................................................................ 15
7. Servicing ............................................................................................................. 16
8. Mark and package ................................................................................................ 16
9. Transportation and storing rules ............................................................................ 17
10. Delivery set ........................................................................................................ 17
11. Warranty ............................................................................................................ 18
Appendix A. Connection scheme ............................................................................... 19
Appendix B. Dimensions ........................................................................................... 20
The changes registration list ..................................................................................... 21
The acceptance and selling certificate ....................................................................... 22
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This paper is destined for operating staff to get to know the construction, mode of functioning
and servicing of the level monitoring device SAUM6.
SAUM6 device is certificated. The certificate of conformance №03.009.0102.
1. PURPOSE
1.1. General information
1.1.1. In common with level sensors and actuators SAUM6 device is destined for automation
of engineering processes, connected with monitoring of the fluid level in some reservoirs, settling
tanks, etc. Electrical conduction of the fluid must be high enough.
1.1.2.Thefluidlevelmonitoringrealizesusingconductometric(controllingelectricalconduction
of the medium) sensors (sondes), put by the user on the marks, assigned by the process conditions:
“Level 1”, “Level 2”, “Level 3”. There are three LED indicators on the front panel of the device for visual
monitoring of the fluid level. Each of LED indicators lights up as soon as the signal of the sensor is taken.
1.1.3. There are three electromagnetic relays built in the device. Each of them is connected with
the level sensor and acts when the fluid level becomes higher or lower than the sensor.
1.2. Service conditions
The device satisfies the climatic requirements УХЛ4 according to the allUnion State Standard
1515069 and it is destined to be used under the following conditions:
– closed explosionproof spaces with no vapour and gas corrosive to the device;
– air temperature from +1 oC to +50 oC;
– the upper limit of ambient air humidity 80%;
– atmospheric pressure from 86 to 106,7 kPa.
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2. PERFORMANCE SPECIFICATION
Basic specifications of the SAUM6 device are given in the table 1.
Table 1
Item Magnitude
Operating supply voltage 220 VAC, frequency 50 Hz
Operating voltage range +10%...15% of operating supply voltage
Power consumption 6 W max
Number of levelmonitoring channels 3
Levelsensors supply voltage, not more than 10 VAC, frequency 50 Hz
Number of relay outputs 3
Permissible load on the relay’s contacts 4A max
Degree of the case protection IP44
Size 130x105x65 mm
Weight 0.7 kg max
Mean life cycle 8 years
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3. MODE OF FUNCTIONING AND CONSTRUCTION
OF THE DEVICE
3.1. Mode of functioning
3.1.1. The functional diagram of SAUM6
device is given in the pic. 1. The device consists of
three level monitoring channels. Each of them
operates the same functions and consists of the
following main items:
– level sensor;
– input;
– threshold device (TD) with signal LED;
– output relay (R).
Pic. 1
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3.1.2. Conductive fluid probes are used in the device as the level sensors. Conductive fluid
probes can be used for fluid level monitoring if the fluid is electroconductive. For example, acid and
alkali solutions, molten metals, water and water salt solutions, milk, etc. The simplest construction
conductive fluid probes are metal corrosionstrong electrodes, sealed from each other. One of
electrodes is common for all monitoring channels. It should be placed in the reservoir so that the test
portion of it is always in the fluid in the all monitoring range (from the lower level to upper level inclusive).
This electrode should be connected to the contact “Common” of the device (pic. 2, a).
Note. If your reservoir is made of metal you can use it body as the common electrode (pic. 2, b).
Pic. 2
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The rest electrodes are signal. They should be placed at appropriate levels and be connected
to signal inputs 1, 2, 3 of the device (contacts “Level 1”, “Level 2”, “Level 3” at the connection diagram,
app. A).
When the reservoir fills up electrodes connects with the fluid. On account of that current lines
between common and appropriate signal input closein. The device fixes it as reaching one of given
levels.
CAUTION! Conductometric method of fluid level monitoring may be not effective if you use
suspension or emulsion instead of fluid because of particles sedimentation. It may result to sealing
sensors electrodes.
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3.1.3. Level sensor’s signals entry to appropriate
inputs and transforms to optimal for further processing
electrical signals.
3.1.4. There are stepped commutators X2 (X3, X4)
ineverychannelofthedevice.Theyareelectroconductivity
sensitivityregulating devices of level monitoring channels.
So SAUM6 device can work with different fluid mediums.
3.1.5. Threshold devices are destined to fix when
the fluid level is as high as conductometric sondes (given
levels) and to signal by lighting up LEDs LEVEL. Apart from
that threshold devices generate signals for output relays
control.
3.1.6.Output relays are destined to control external
equipment. External equipment supports performance of
the level monitoring engineering process. Operation of
relay will happen if appropriate signal electrode contacts
with the fluid.
The mode of relay’s behaviour in every channel
may be changed by the user using commutators X5 (X6,
X7), pic. 1. It may be used for functionality enhancement
of the device. Depending on relay’s commutator output relay can become “on” or “off” when sensor’s
electrode contacts with the fluid.
The time history of output relay’s working when all relays become “off” if level sensor’s signal
comes is given in pic. 3.
Pic. 3
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3.2. Construction of the device
3.2.1. The device’s case is made of plastic. The case is destined for fasten on the wall (Htype).
Dimensions of the device are given in app. B.
3.2.2. There are LED indicators on the front panel of the device (pic. 4):
– POWER (green) – glows when the power is on and builtin power supply unit functions
properly;
– LEVEL 1, LEVEL 2, LEVEL 3 (red) – glows as soon as the signal of the appropriate level sensor
is taken.
Pic. 4
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3.2.3. The device consists from two printedcircuit boards, connected to each other.
There are signal LED indicators in the one of printedcircuit boards.
Therearelevelmonitoringchannel’sschemeitems,electricpowersupplyunit and commutators
X2…X7, which are destined to set the sensitivity of the level monitoring channels and to change the
mode of behavior of the output relay’s in the second printedcircuit board.
Commutators consist of doublerow rectangular pintle connectors. Jumper straps should be
put on the neighbouring contacts to commute electrical signals.
Also there is 17contact connector block destined to connect external connections cables by
screws on the second printedcircuit board.
To work with printedcircuit boards and connector block you should unscrew the front panel of
the device from the case.
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