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WEKA_IOM_MWG_EN.docx  /  01.04.2020 

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1. 

Symbols and signs used in the instruction manual 

 

Warning 

Indicates potential damage to the device and / or an injury of the operator or 
user in case of failure to observe the instructions. 

 

Caution 

Indicates potential damage to the device in case of failure to observe the 
instructions. 

 

 

Safety note 

For equipment with normal conditions of use in explosion-prone environments 
according to EU-Directive 2014/34/EU (ATEX) or IECEx scheme. 
These notes apply in addition to all other notes. 

 

2. 

Safety notes and warnings 

The manufacturer is not liable for damages which are caused as a result of failure to observe safety notes 
and warnings. 
 

 

Burn hazard! Work on hot magnetic level indicators can lead to bodily injuries and burns. The 
surfaces of the float chambers and the process connections can become hot. Let the tank cool 
down to ambient temperature prior to carrying out any work on the magnetic level indicator. 
Wear appropriate PPE (gloves, face protection, possibly respiratory protection equipment). 
Keep sufficient distance during operation. 

 

The magnetic level indicator and thus also the transmitter can unnoticeably become 
inoperative by a blocking of the float. Should you be unsure about the liquid level indicated 
another method should be used to check the magnetic level indicator.

 

 

Should you suspect a defective function or should you find such defective function, it must be 
remedied. 

 

 

Only use the magnetic level indicator and the transmitter, once you have read and understood 
the complete instruction manual. 

 

The present instruction manual must also be accessible for later users. 

 

Keep magnetic and magnetisable parts (magnets, construction steel, steel wire or clamps etc.) 
away from the magnetic level indicator or accessories such as the transmitter. This also 
applies to strong electromagnetic fields (transformers, welding equipment etc.), as both can 
interfere with the magnetic force of the magnets contained in the magnetic level indicator or the 
transmitter and can lead to malfunctions or failures of the indicator or the accessory parts 
(switch, transmitter,  measuring converter) attached. 

 

Replace damaged or faulty components with original spare parts. 

 

Solvents can blunt the plastic components used or can cause cracks. Clean the devices with 
soap and water or a plastic cleaner. 

 
 

 

Summary of Contents for WEKA 29710 Series

Page 1: ...Instruction Manual Transmitter Accessories for WEKA Visual Level Indicator VLI Transmitter 29710 x 31967 x 32607 NI 32608 ND Date 27 03 2020 Version E 1 1 ...

Page 2: ...WEKA_IOM_MWG_EN docx 01 04 2020 1 31 Notes Order Date ...

Page 3: ...g Disposal 9 12 Assembly 10 12 1 Installation of transmitter to VLI 11 12 2 Drawing 20010501 installation of accessories 12 13 Electrical installation 13 14 Commissioning of reed transmitters 13 15 Maintenance 14 16 Technical data 14 17 Troubleshooting 15 18 Transport and storage conditions 16 19 Labelling 16 20 Customer service 16 21 EU Type examination certificates 17 22 Declaration of safeness ...

Page 4: ...during operation The magnetic level indicator and thus also the transmitter can unnoticeably become inoperative by a blocking of the float Should you be unsure about the liquid level indicated another method should be used to check the magnetic level indicator Should you suspect a defective function or should you find such defective function it must be remedied Only use the magnetic level indicato...

Page 5: ... on the type plate The data recorded on the type plate and the data sheet must correspond to the maximum operation parameters occurring within the plant Intended use rebuilding measures and alterations of the transmitters not provided by the manufacturer are carried out at one s own risk and are potentially dangerous exclusion of warranty The transmitters may only be installed commissioned and mai...

Page 6: ...rview of transmitters and converters 3 wire transmitter 10mm resolution 2 wire transmitter 10mm resolution Ex transmitter 10mm resolution T2 min 80 M el T1 Ø14 Ø5 7 Start T2 min 80 M el T1 Ø14 Ø17 Ø6 2 Start T2 min 60 M el T1 Ø14 Ø17 Ø6 2 Start ...

Page 7: ...s Ex d 4 20mA current output current sink 32608 Specialities Standard no marking With resistant output for HART Profibus PA and Foundation Fieldbus 29710 R Transmitter with bi stable reed switch at the top end 29710 31967 BI Execution Standard no marking for high media temperature 29710 31967 W with terminal box 31967 K with plug connector 31967 KST Intrinsically safe Ex ia 29710 32607 NI Flamepro...

Page 8: ...limit i e signal output of a 2 wire transmitter 4 20mA i e output load of a 2 wire transmitter 4 20mA All transmitters are available in 10mm or 5mm resolution The minimum and maximum available electrical measuring length Mel is stated in the technical data or the data sheets The transmitters of type NI Ex i are to be operated with appropriate intrinsically safe equipment The inner capacities and t...

Page 9: ...ge of the indicator Because the zero point 4mA is fixed it is necessary to install the transmitter at the lower start point of measurement This will cause the possibility that the float will rise higher than the full scale point 20mA of the transmitter In this case it is possible to use a bi stabile reed switch on top of the transmitter to avoid a loss of signal ...

Page 10: ...easuring length etched on the metal housing of the existing transmitter 9 Unpacking 1 Open the packaging and remove the transmitter 2 Make sure that no further parts remain in the packaging 3 Visually check the transmitter and all parts delivered for potential transport damages Do not use any damaged or hazardous parts 10 Disposing of packaging materials Preserve the environment and properly dispo...

Page 11: ...ter After the assembly all hose clamps must again be tightened Check the position and the seat of the transmitter after you have finished the work Assembly position The transmitter is to be assembled 180 opposite the indication rail with the cable outlet towards the top taking into account the tolerances The tolerances depend on the respective pipe diameter see subsequent drawing Optional With the...

Page 12: ...rminology L Length between process connections X Zero point of transmitter M Measuring length indication length of VLI Mel Measuring length of transmitter 10mm resolution X 65mm C1 Bottom float extension 5mm resolution X 30mm C2 Top float extension 29710 R xx version see data sheet ...

Page 13: ...WEKA_IOM_MWG_EN docx 01 04 2020 12 31 12 2 Drawing 20010501 installation of accessories ...

Page 14: ...ned Observe the following procedure to establish a defined output state Prior to use check the transmitter for visible exterior damages Do not commission a damaged transmitter The transmitter may only be used for intended purposes recorded on the type plate and in the certificates according to directive 2014 34 EU and or IECEx scheme The magnetic level indicator is filled with liquid via the tank ...

Page 15: ... damp cloth Solvents and abrasive cleaners can destroy cables plastic cable gland and type plate Transmitters for the Ex area may only be repaired and modified by the manufacturer where required in consultation with the named authority 16 Technical data Dimensions see data sheet Minimum Mel all types 200mm Maximum Mel all types 4000mm Other lengths on request multiple piece design Minimum medium t...

Page 16: ...circuit short circuit or wrong polarity Check correctly installation Consider that accessories have to be moved turned when moving turning the indication rail Without indication rail the float has no guidance and cannot activate the accessories Check the function of the magnetic level indicator according to point 1 Ensure that the right combination of float chamber type and float was selected Chec...

Page 17: ...t strong magnetic fields Temperature 10 C 50 C Relative humidity 10 95 19 Labelling The transmitter may only be used for the intended use recorded on the type plate Please observe the information on the type plate 20 Customer service You find a list with all WEKA representatives worldwide under www weka ag ch contact representatives and your choice of country or contact us directly under WEKA AG S...

Page 18: ...WEKA_IOM_MWG_EN docx 01 04 2020 17 31 21 EU Type examination certificates ...

Page 19: ...WEKA_IOM_MWG_EN docx 01 04 2020 18 31 ...

Page 20: ...WEKA_IOM_MWG_EN docx 01 04 2020 19 31 ...

Page 21: ...WEKA_IOM_MWG_EN docx 01 04 2020 20 31 ...

Page 22: ...WEKA_IOM_MWG_EN docx 01 04 2020 21 31 22 Declaration of safeness for shielded cable NI version ...

Page 23: ...WEKA_IOM_MWG_EN docx 01 04 2020 22 31 23 IECEx Certificate of conformity ...

Page 24: ...WEKA_IOM_MWG_EN docx 01 04 2020 23 31 ...

Page 25: ...WEKA_IOM_MWG_EN docx 01 04 2020 24 31 ...

Page 26: ...WEKA_IOM_MWG_EN docx 01 04 2020 25 31 ...

Page 27: ...WEKA_IOM_MWG_EN docx 01 04 2020 26 31 ...

Page 28: ...WEKA_IOM_MWG_EN docx 01 04 2020 27 31 ...

Page 29: ...WEKA_IOM_MWG_EN docx 01 04 2020 28 31 24 Conformity declarations ...

Page 30: ...WEKA_IOM_MWG_EN docx 01 04 2020 29 31 ...

Page 31: ...WEKA_IOM_MWG_EN docx 01 04 2020 30 31 25 Statement for transmitter with HART converter ...

Page 32: ... Support Engineering Development and Project Management Valve Technology Cryogenic Valves Check Valves High pressure Valves Inox Valves Cryogenic Components Cryogenic Valves Transfer Line Couplings Flow Sensors Level Measurement Visual Level Indicators VLI Tank Level Instruments TLI Industry Tank Level Instruments TLI Marine ...

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