Simex DRS-30 Series User manual

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Assisting the automation
industry since 1986
User manual
LIQUID SENSO
D S-30x
•Input type: push-pull
•reference electrode available
Read the user's manual carefully before starting to use the unit or software.
Producer reserves the right to implement changes without prior notice.
2012.11.13 RS-30x_INSSXEN_v.1.02.000

User manual - LIQUID SENSOR DRS-30x
CONTENTS
1. BASIC REQUIREMENTS AND USER SAFETY........................................................................................3
2. GENERAL CHARACTERISTICS................................................................................................................4
3. TECHNICAL DATA......................................................................................................................................4
4. DEVICE INSTALLATION............................................................................................................................5
4.1. UNPACKING.......................................................................................................................................5
4.2. ASSEMBLY........................................................................................................................................5
4.3. CONNECTION METHOD...................................................................................................................7
4.4. MAINTENANCE................................................................................................................................10
Expla atio of symbols used i the ma ual:
- This s mbol denotes especiall important guidelines concerning the installation and
operation of the device. Not compl ing with the guidelines denoted b this s mbol
ma cause an accident, damage or equipment destruction.
IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS
RESPONSIBLE FOR POSSIBLE DAMAGES.
- This s mbol denotes especiall important characteristics of the unit.
Read an information regarding this s mbol carefull
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User manual - LIQUID SENSOR DRS-30x
1. BASIC REQUIREMENTS AND USER SAFETY
- The manufacturer is not responsible for any damages caused by
inappropriate installation, not maintaining the proper environmental
conditions and using the unit contrary to its assignment.
- Installation should be conducted by qualified personnel . uring installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The unit must be properly set-up, according to the application. Incorrect
configuration can cause defective operation, which can lead to unit damage or
an accident.
- If in the case of a unit malfunction there is a risk of a serious threat to the
safety of people or property additional, independent systems and
solutions to prevent such a threat must be used.
- The unit must be switched off and disconnected from the power supply prior to
starting installation of troubleshooting (in the case of malfunction).
- Neighbouring and connected equipment must meet the appropriate standards
and regulations concerning safety and be equipped with adequate overvoltage
and interference filters.
- Do not attempt to disassemble, repair or modify the unit yourself. The unit
has no user serviceable parts. Defective units must be disconnected and
submitted for repairs at an authorized service centre.
- o not use the unit in areas threatened with excessive shocks, vibrations, dust,
humidity, corrosive gasses and oils.
- o not use the unit in areas where there is risk of explosions.
- 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.
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User manual - LIQUID SENSOR DRS-30x
2. GENERAL CHARACTERISTICS
Liquid sensor type DRS- 0x is designed for conducted liquid presence detection.
Parameters of the detector have been fixed to allow detection of actual presence of liquid on
its electrodes and to be resistant for low impedance conducted surfaces (e. g. wet fingers).
Additional reference electrode prevents detector against false signalising when liquid covers
its surface only. PUSH-PULL output gives an opportunity for connection either to devices
equipped with direct or inverse logic inputs. Wide range of supply voltage (12 - 30V C) and
operation temperatures (-40°C ÷ +85°C) allow to use the sensor in most systems (e. g. pump
dry run detection, full tank detection etc.)
Approximate resistivity of water
Kind of water from water
supply system potable water mineral water distilled water
resistivity 0.5 ÷ 5kΩ/cm 1 ÷ 8kΩ/cm 2 ÷ 5kΩ/cm 50 ÷ 200kΩ/cm
3. TECHNICAL DATA
Power supply voltage 12V...24...30V C
Current consumption about 5mA (+ output load )
Output PUSH-PULL
Output max. load 50mA (sink and source)
Output delay < 100ms
etection threshold 12kΩ ± 20%
Protection level IP 67
Material of electrodes Stainless still, acid resistant
Filling material polyurethane
Mounting method thread
Connection cable 4 x 0.5, polyurethane
Cable length 1...3 m (depending on device version)
Housing type
Housing dimensions
gland M20x1,5 LAPKABEL
28 x 33 mm, thread M20x1,5x9
Weight 50 g
Operating temperature
Storage temperature
-40°C do +85°C
-40°C do +85°C
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User manual - LIQUID SENSOR DRS-30x
This is a class A unit. In housing 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.
- Installation should be conducted by qualified personnel .
- Read the basic safety requirements on page 3 prior to starting the installation.
- All installation works must be conducted with a disconnected power supply.
4.1. UNPACKING
After removing the unit from the protective packaging, check for transportation damage. Any
transportation damage must be immediately reported to the carrier. Also, write down the unit
serial number on the housing and report the damage to the manufacturer.
Attached with the unit please find:
- user’s manual,
- warranty,
4.2. ASSEMBLY
RS sensor should be installed directly into side wall of a container. Application of
10 mm length threaded flange (M20x1,5) is allowed. The installation should assure free
access of water (or other conductive liquid) to the electrodes, however it is required to
preserve minimum distance between electrodes and walls of container (pipe).
Teflon tape is recommended for sealing.
- isconnect the power supply prior to starting assembly.
- Check the correctness of the performed connections prior to switching the unit on.
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