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TetraCon

®

700 SW

Safety

25

ba75538e01

04/2005

2

Safety

2.1

General information on safety

These safety instructions contain all instructions that have to be 
followed for a safe operation of the TetraCon

®

700 SW conductivity 

measuring cell. Before starting any work with the TetraCon

®

700 SW, 

carefully read the safety instructions and strictly follow all protective 
measures mentioned.

Always store and make available these safety instructions together with 
the operating manual in the vicinity of the place of installation as 
possible.

General safety

instructions

Safety instructions in this operating manual can be recognized by the 
warning symbol (triangle) in the left column. The signal word (e. g. 
"Caution") indicates the level of the danger:

Warning

indicates instructions that must be followed precisely in order to 
prevent serious dangers to persons.

Caution

indicates instructions that must be followed precisely in order to 
avoid slight injuries or damage to the instrument or the 
environment.

Other labels

Note
indicates notes that draw your attention to special features.

Note
indicates cross-references to other documents, e.g. operating 
manuals.

2.2

Authorized use

The authorized use of the TetraCon

®

700 SW is stationary conductivity 

measurement.

The technical specifications according to chapter 8 T

ECHNICAL

 

DATA

 

must be observed. Only operation according to the instructions given in 
this operating manual is considered to be authorized.

Any other use is considered to be unauthorized. Unauthorized use 
invalidates any claims with regard to the guarantee.

Содержание TetraCon 700 SW

Страница 1: ...ba75538e01 04 2005 TetraCon 700 SW 19 Operating manual Conductivity measuring cell...

Страница 2: ...ces between this operating manual and your instrument Also we cannot guarantee that there are absolutely no errors in this manual Therefore we are sure you will understand that we cannot accept any le...

Страница 3: ...use 25 2 3 General safety instructions 26 3 Commissioning 27 3 1 Scope of delivery 27 3 2 Installation 27 4 Measuring Operation 29 4 1 Measuring 29 4 2 Application dependent settings 30 5 Maintenance...

Страница 4: ...TetraCon 700 SW 22 ba75538e01 04 2005...

Страница 5: ...ucture of the TetraCon 700 SW conductivity measuring cell Fig 1 1 Structure of the TetraCon 700 SW conductivity measuring cell 1 Shaft 2 Closing head with protective ring 3 Voltage electrodes 4 Temper...

Страница 6: ...from primary or secondary polarization effects which ensures a high degree of measuring accuracy The modern epoxy casting technique reduces the danger of breaking the conductivity measuring cell in ro...

Страница 7: ...e signal word e g Caution indicates the level of the danger Warning indicates instructions that must be followed precisely in order to prevent serious dangers to persons Caution indicates instructions...

Страница 8: ...conductivity measuring cell Protect the conductivity measuring cell particularly against frost or overheating Safe operation If safe operation is no longer possible the conductivity measuring cell mus...

Страница 9: ...ction to the measuring transmitter The TetraCon 700 SW connection cable has a cable plug to be connected to the Cond input socket of a measuring transmitter It is connected to the terminal strip of me...

Страница 10: ...Commissioning TetraCon 700 SW 28 ba75538e01 04 2005...

Страница 11: ...on If the gap is less than that the cell constant changes This leads to inexact measurement results Normally measuring transmitters have a correction function that can compensate for this influence Th...

Страница 12: ...due to the influence of the measuring environment e g of boundary fields In chapter 6 WHAT TO DO IF of this operating manual you will find the correct values to set for some products of the WTW acces...

Страница 13: ...measuring accuracy Therefore we recommend cleaning the conductivity measuring cell regularly according to visual checks Especially before measuring low conductivity values we recommend to clean the me...

Страница 14: ...y field not maintained The conductivity measuring cell must be surrounded by a gap of at least 5 cm at the base and sides when measuring at the electrodes Otherwise the cell constant will change see s...

Страница 15: ...lacement parts and accessories 33 ba75538e01 04 2005 7 Replacement parts and accessories Adapter Note Information on further accessories is given in the WTW catalog and in the Internet Model Order no...

Страница 16: ...Four electrodes measurement Temperature sensor Integrated NTC 30 30 k 25 C Dimensions Weight Material 59 5 160 37 5 223 40 approx 860 g without sensor connection cable Sensor head PVC epoxy filling ma...

Страница 17: ...delines and norms used Test certificates UL cUL Length 15 0 m special lengths on request Diameter 8 8 mm Smallest allowed bend radius Permanent bend 180 mm Short time bend 90 mm Connection Screw plug...

Страница 18: ...agram Pin assignment 7 pole screw plug Shield Thermistor NTC Thermistor NTC Current electrode I1 ring Voltage electrode U1 Voltage electrode U2 Current electrode I2 ring 6 1 2 3 5 7 4 NTC 30 k Measuri...

Страница 19: ...to article 3 3 of the directive 97 23 EC pressure equipment directive 8 4 Characteristics when delivered Temperature measurement Cell constant Measuring medium 0 C 50 C Storage transport 5 C 65 C stor...

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