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8 Technical data

8. Technical data

Feature Values

Parameters

pH / °C

Sensor pH

electrodes

NTC

Measurement range

0 to 14 pH / ±0 to +60 °C (short-term to +80 °C, max. 5 min)

Resolution

0.01 pH / 0.1 °C

Accuracy

±0.02 pH / ±0.4 °C

Temperature compensation

Auto-

matic
Probe Probe

module

Measuring rate

2/s

Operating temperature

±0 to +50 °C

Storage temperature

-20 to +70 °C

Power

4 x button cell, Type LR44

Battery life

Approx.80h

Housing ABS
Protection class

IP 65

CE guideline

2004/108/EEC

Dimensions (l x w x h)

145 mm x 38 mm x 167 mm

Warranty

2 years, excluding probe modules, warranty conditions:

see

www.testo.com/warranty

1.888.475.5235

[email protected]

www.

Testo-Direct

.com

Содержание 205

Страница 1: ...testo 205 pH Temperature Measuring Instrument Bedienungsanleitung de Instruction Manual en Ðóêîâîäñòâî ïîëüçîâàòåëÿ ru 1 888 475 5235 info Testo Direct com www Testo Direct com ...

Страница 2: ... warning Serious physical injuries could occur carefully and take the if the precautionary measures precautionary measures specified are not taken specified Warning text Caution Please read warning Light physical injuries could occur carefully and take the if the precautionary measures precautionary measures specified are not taken specified Note Pay particular attention to Notes Taste Button name...

Страница 3: ...on 22 5 1 Switching on off 22 5 2 Setting instrument 22 5 3 Measuring 23 5 4 Calibrating instrument 24 6 Service and Maintenance 26 6 1 Checking electrolyte gel 26 6 2 Cleaning housing 26 6 3 Cleaning probe 26 6 4 Changing the probe 27 6 5 Changing battery 27 7 Questions and Answers 28 8 Technical data 29 9 Accessories and Spare Parts 30 Contents 17 en 1 888 475 5235 info Testo Direct com www Test...

Страница 4: ... are not spe cifically designed for higher temperatures Open the instrument only when this is expressly described in the documentation for maintenance purposes Only the maintenance and service work described in the docu mentation should be carried out Please adhere to the steps specified For safety reasons only original spare parts from Testo should be used Ensure correct disposal Disposal of defe...

Страница 5: ...testo 205 is not suitable for diagnostic measurements in the medical sector The following components of the product are designed for continuous contact with foodstuffs in accordance with the regulation EC 1935 2004 The measurement probe up to 1 cm before the probe handle or the plastic housing If provided the information about penetration depths in the instruction manual or the mark s on the measu...

Страница 6: ... four button cells Type LR44 included with delivery MODE change function ON HOLD On Off switch holds readings Battery com parment CAL Calls up calibration mode Display 3 Product Description 20 Probe socket with screw ring 1 888 475 5235 info Testo Direct com www Testo Direct com ...

Страница 7: ...orage cap can also be attached to the wall transport brack et 3 4 Wall Transport bracket The wall transport bracket with belt holder and attachment unit for the storage cap is used for the safe storage of the measure ment instrument at a fixed point or during transport 4 Initial Operation Insert battery 1 Remove battery compartment 2 Insert batteries 4 x Type LR44 Watch out for 3 Push battery comp...

Страница 8: ...TO OFF Instrument switches off On switched on or automatically after 10 minutes OFF switched off if no button has been pressed Display light bl Display light goes on for On switched on or approx 3 s whenever a OFF switched off button is activated Beeper bP Warning sound button pressed On switched on or stable reading reached with OFF switched off Auto Hold function switched on Modification less th...

Страница 9: ...he probe when removed from the storage cap it is a sign that the gel is spent A new storage cap is needed Clean off the pH probe before and after each measurement with low concentration soap water followed by tap water water temperature should be below 40 C Dab dry with a paper towel Do not rub After horizontal storage Briefly shake the probe in order to release any gas bubbles which may have form...

Страница 10: ...40 C Dab dry with a paper towel Do not rub 3 Insert probe in the storage cap filled with electrolyte gel The probe tip must be immersed in the electrolyte gel Keep electrolyte gel clean 5 4 Calibrating instrument Please also adhere to the instructions supplied with the buffer solution Testo buffer see label During calibration it is important that the glass probe does not touch the synthetic materi...

Страница 11: ... calibration manually CAL Repeat Step 2 for additional calibration points Once calibration is complete the amount of the gradient and offset value is shown If the amount of the gradient value is less than 50mV pH or the amount of the offset value is greater than 60mV the pH electrode is spent and must be replaced 3 Return to measurement view CAL 5 Operation 25 en 1 888 475 5235 info Testo Direct c...

Страница 12: ...y due to glass parts remaining in the measurement medium Use only the cleaning substances stated Depending on the type of contamination the following cleaning substances are suitable Fat domestic dishwashing liquid Protein pepsin The use of warm water improves the cleaning effect 1 Apply dishwashing liquid or pepsin to a cloth and gently wipe do not rub as this leads to static charging 2 Rinse the...

Страница 13: ...not be touched 1 Turn screw ring anti clockwise and remove probe 2 Attach new probe watch for guide groove and tighten screw ring in a clockwise direction 6 5 Changing battery 1 Pull out battery compartment 2 Remove spent batteries and insert new batteries 4 x Type LR44 Watch out for 3 Reinsert battery compartment 6 Service and Maintenance 27 en 1 888 475 5235 info Testo Direct com www Testo Direc...

Страница 14: ... 8 Er1 lights up Invalid gradient value Recalibrate instrument of pH electrode a new buffer solution could be used pH electrode defective Change probe Er2 lights up Invalid offset value Recalibrate instrument of the pH electrode a new buffer solution could be used pH electrode defective Change probe Er3 lights up Invalid gradient value Recalibrate instrument of pH electrode following a new buffer ...

Страница 15: ...sation Auto matic Probe Probe module Measuring rate 2 s Operating temperature 0 to 50 C Storage temperature 20 to 70 C Power 4 x button cell Type LR44 Battery life Approx 80h Housing ABS Protection class IP 65 CE guideline 2004 108 EEC Dimensions l x w x h 145 mm x 38 mm x 167 mm Warranty 2 years excluding probe modules warranty conditions see www testo com warranty en 1 888 475 5235 info Testo Di...

Страница 16: ... solution 4 01 in dosing bottle 250 ml including DAkkS calibration certificate 0554 2061 pH buffer solution 7 00 in dosing bottle 250 ml including DAkkS calibration certificate 0554 2063 ISO calibration certificate analysis for pH buffer solutions calibration points 4 pH 7 pH 10 pH 0520 0007 ISO calibration certificate analysis at 3 pH values over the measuring range 0520 0037 1 888 475 5235 info ...

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