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Siemens SITRANS LH300, Compact Operating Instructions

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Siemens SITRANS LH300 Compact Operating Instructions Download Page 18

 

 

SITRANS LH300 (7MF1575..) Transmitter for hydrostatic level 

20

 

A5E37897183-AA, 09/2016 

 

①

 

Cable, 

sheath 8.3 mm diameter 

④

 

Protective conductor connection/ 
Equipotential bonding 

②

 

- (blue) 

⑤

 

Vent pipe, 

1 mm diameter (inside diameter) 

③

 

+ (Brown) 

⑥

 

Protective cover with 4 x 5 mm diameter hole 

Figure 9-2 

Pressure transmitter with protective cover made of stainless steel, dimensions in mm 

Cable box 

 

①

 

Fastening hole 

③

 

Screwed gland Pg 13.5 

②

 

Vent valve 

 

 

Figure 9-3 

Cable box, dimensions in mm (inches) 

Anchor clamp 

 

Anchor clamp, dimensions in mm (inches) 

 

Summary of Contents for SITRANS LH300

Page 1: ...n this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation in particular its warning notices and safety instructions Qualified personnel are those who based on their training and experience are capable of identifying risks and avoiding potential hazards when working with these products systems Proper use of Siemens products ...

Page 2: ... provides limited protection against moisture and infiltration Provide additional packaging as necessary Special conditions for storage and transportation of the device are listed in Technical specifications Page 15 1 4 Notes on warranty The contents of this manual shall not become part of or modify any prior or existing agreement commitment or legal relationship The sales contract contains all ob...

Page 3: ...uctions for the device Failure to observe this requirement cancels the manufacturer s warranty and the product approvals 2 3 Requirements for special applications Due to the large number of possible applications each detail of the described device versions for each possible scenario during commissioning operation maintenance or operation in systems cannot be considered in the instructions If you n...

Page 4: ...ssure transmitter is a submersible sensor for hydrostatic level measurement The pressure transmitter measures the liquid levels in tanks containers channels and dams The pressure transmitter is available for various measuring ranges and optionally with explosion protection A cable box and an anchor clamp are available as accessories to make installation easier The pressure transmitter is used for ...

Page 5: ...ctive conductor connection Equipotential bonding Connection for auxiliary power supply Hydrostatic pressure Vent pipe Figure 3 2 Pressure transmitter mode of operation and wiring diagram On one side of the sensor the diaphragm is exposed to the hydrostatic pressure which is proportional to the immersion depth This pressure is compared with the atmospheric pressure Pressure compensation is carried ...

Page 6: ...ressure limit and temperature rating The device can be damaged if the operating pressure is exceeded Hot toxic and corrosive process media could be released Ensure that maximum permissible operating pressure of the device is not exceeded Refer to the information on the nameplate and or in Technical specifications Page 15 NOTICE Using a device with frozen process medium Damage to the device through...

Page 7: ...d process media 3 Fasten the pressure transmitter by means of a guide tube or an additional weight on the transmitter max tensile force on connecting cable 360 N 4 Fasten the cable above the container with the anchor clamp 5 Connect the cable itself with the cable box 6 Mount the cable box at a location appropriate to its degree of protection IP66 in the vicinity of the measuring point 7 To ensure...

Page 8: ... Cable box Pressure transmitter Anchor clamp Figure 4 2 Setting up the measuring points 4 4 Establishing the measuring range Calculating the measuring range with process media with a density 1000 kg m3 process medium water p ρ g h with ρ density of the process medium g local gravitational acceleration h maximum level ...

Page 9: ...esult of incorrect power supply e g using direct current instead of alternating current Connect the device in accordance with the specified power supply and signal circuits The relevant specifications can be found in the certificates in Chapter Technical specifications Page 15 or on the nameplate Always power the device with limited energy Observe the following standards on limited energy UL61010 ...

Page 10: ... in industrial environments households and small businesses For metal housings there is an increased electromagnetic compatibility compared to high frequency radiation This protection can be increased by grounding the housing see Connecting Page 11 Note Improvement of interference immunity Lay signal cables separately to cables with voltages 60 V Use cable with twisted wires Keep the device and th...

Page 11: ...er for hydrostatic level A5E37897183 AA 09 2016 13 Atmospheric pressure Transmitter Vent pipe Cable box Figure 5 2 Connection diagram Vent pipe s Cable box venting To transmitter To measured value processing Figure 5 3 Cable box open ...

Page 12: ...e is maintenance free WARNING Impermissible repair of explosion protected devices Risk of explosion in areas subject to explosion hazard Repair must be carried out by Siemens authorized personnel only WARNING Use of a computer in a hazardous area If the interface to the computer is used in the hazardous area there is a risk of explosion Ensure that the atmosphere is explosion free hot work permit ...

Page 13: ... corrosive flammable or water contaminating substances you must thoroughly clean and decontaminate the device replacement part before returning it in order to ensure that all hollow areas are free from hazardous substances Check the item after it has been cleaned Any devices replacement parts returned without a decontamination declaration will be cleaned at your expense before further processing 7...

Page 14: ... to 6 mH2O 0 to 18 ftH2O 2 bar 29 psi 20 mH2O 66 ftH2O 0 to 1 bar 0 to 10 mH2O 0 to 30 ftH2O 5 bar 72 psi 51 mH2O 167 ftH2O 0 to 2 bar 0 to 20 mH2O 0 to 60 ftH2O 10 bar 145 psi 102 mH2O 334 ftH2O 0 to 4 bar 0 to 40 mH2O 0 to 120 ftH2O 20 bar 204 mH2O 669 ftH2O 2 wire output Output signal 4 20 mA Load Resistor R Ω Rmax is the maximum resistance of the supply line UH Auxiliary power supply in V Meas...

Page 15: ...ence immunity To EN 61326 1 and EN 61326 2 3 Process medium conditions Process medium temperature 10 80 C 4 176 F Pressure transmitter construction Weight Pressure transmitter Cable Approx 0 4 kg 0 88 lb 0 08 kg m approx 0 059 lb ft Material Wetted parts materials Housing Stainless steel material No 1 4404 316L or 1 4539 904L Sensor Ceramic AI2O3 99 6 Cable PE HD FEP Protective cover PPE ETFE stai...

Page 16: ...orque for cable gland nut made of Plastic 2 5 Nm 1 8 ft lb Rated conditions Degree of protection according to EN 60 529 IP65 Anchor clamp 7MF1575 8AB construction accessory Field of application For fastening the transmitter Weight 0 16 kg 0 35 lb Electrical connection Galvanized steel polyamide Auxiliary power UH Terminal voltage at transmitter 10 V DC to 30 V DC 10 V DC to 33 V DC Current consump...

Page 17: ...IC T4 Ga Connection To certified intrinsically safe circuit with the max values Ui 30 V Ii 100 mA Pi 750 mW Effective internal capacitance Ci 2 nF 0 204 nF per meter supply line on the pressure transmitter Effective internal inductance Li 8 µH 1 48 µH per meter supply line on the pressure transmitter EAC Ex Available soon 9 Dimensional drawings Pressure transmitter Cable sheath 8 3 mm diameter Pro...

Page 18: ...ial bonding blue Vent pipe 1 mm diameter inside diameter Brown Protective cover with 4 x 5 mm diameter hole Figure 9 2 Pressure transmitter with protective cover made of stainless steel dimensions in mm Cable box Fastening hole Screwed gland Pg 13 5 Vent valve Figure 9 3 Cable box dimensions in mm inches Anchor clamp Anchor clamp dimensions in mm inches ...

Page 19: ...act If you have additional questions about the device please contact your Siemens personal contact at Partner http www automation siemens com partner In order to find the contact for your product select under All Products and Branches the path Automation Technology Sensor Systems Documentation You can find documentation on various products and systems at Instructions and manuals Instructions and m...

Page 20: ... violate the rights of the owner Disclaimer of Liability We have reviewed the contents of this publication to ensure consistency with the hardware and software described Since variance cannot be precluded entirely we cannot guarantee full consistency However the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions Siemens AG Divisi...

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