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TD22

Bases for measurement | 7

B-H86.0.0D.DB201-1.0

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7 Bases for measurement

7.1 Possible measuring errors

7.1.1 Immersion depth

Liquids

Immerse to a depth of at least 20 mm and then stir. Otherwise, measuring errors can
occur due to the heat transmission of the sensor tube if the immersion depth is too
shallow.

Gases

Immerse as far as possible into the gas to be measured so that the measuring sensor
is subjected to a heavy flow.

7.1.2 Surface effects and poor heat transfer

Surface temperature

Special measuring sensors are required for this purpose. Surface characteristics,
design of the measuring sensor, heat transfer and environmental temperature influ-
ence the measurement result.

 NOTE

Thermally conductive paste between the measuring sensor and surface can also in-
crease measurement accuracy in some cases.

7.1.3 Cooling / evaporation

Air temperature

The measuring sensor should be dry; otherwise the temperature measurement is too
low.

7.1.4 Response time

Response time T

90

An adequate wait time must be observed for the measuring process before reading
the measured value. The response time T

90

 describes the time in which the displayed

measured value reached 90% of the end value. See 

Technical data [

}

 p. 24]

.

7.1.5 Limit values

Temperature range

 CAUTION

Destruction of the measuring sensor!

When conducting measurements in media with high or very low temperatures, there is
a risk that the measuring sensor is not designed for such extremes.

– The limit values must be observed!

Содержание TD22

Страница 1: ...EN TD22 Alarm thermometer Operating manual European catalogue number EU connection 620 2643 Version 1 0 Issued 07 01 2019...

Страница 2: ...product at a glance 12 5 1 The TD22 12 5 2 Display elements 12 5 3 Operating elements 12 6 Operation 14 6 1 Commissioning 14 6 1 1 Explanation 14 6 2 Configuration 14 6 2 1 Explanation 14 6 2 2 Openi...

Страница 3: ...Table of contents B H86 0 0D DB201 1 0 3 27 10 Disposal 23 11 Technical data 24 12 Service 25 12 1 Online resources 25 12 2 Sales partners 26...

Страница 4: ...ress of the manufacturer TD22 4 27 B H86 0 0D DB201 1 0 1 Legal address of the manufacturer VWR International bvba Researchpark Haasrode 2020 Geldenaaksebaan 464 B 3001 Leuven Phone 32 16 385011 http...

Страница 5: ...m material and production de fects for a period of two 2 years from the time of delivery If there is a defect VWR shall decide on its own discretion whether to repair or replace the product free of ch...

Страница 6: ...each step Instruction Tasks to be carried out by the personnel user are represented as numbered instruc tions Adhere to the sequence of the specified instructions Representation Shows an illustrative...

Страница 7: ...0 7 27 NOTE For information about the software version press and hold the ON button to switch on the product for longer than 5 seconds The series is shown in the main display and the software version...

Страница 8: ...s and the device specific safety instructions for this document are observed If these notices are disregarded personal injury or death as well as property damage can occur DANGER Incorrect area of app...

Страница 9: ...probes with care Fit a protective cap on the measuring probe NOTE If the product is stored at a temperature above 50 C or is not used for an extended period of time the batteries must be removed Leaks...

Страница 10: ...rements for which purpose this document makes a valuable contribution The instructions in this docu ment must be understood observed and followed In order to ensure that no risks arise from the interp...

Страница 11: ...ude the dust proof and waterproof design in accord ance with IP 65 67 and the 3 line illuminated display which offers overhead display at the push of a button The product can be switched on switched o...

Страница 12: ...hold Auxiliary display Measurement of the current temperature in min max hold mode with unit 5 3 Operating elements On Off button Press briefly Switch on the product Activate deactivate lighting Long...

Страница 13: ...TD22 The product at a glance 5 B H86 0 0D DB201 1 0 13 27 Long press 2s Open menu frozen measurement is displayed Close menu changes are saved...

Страница 14: ...roduct for your purposes NOTE There are various configuration parameters available depending on the product ver sion and configuration They can differ depending on the product version and configur ati...

Страница 15: ...eter you would like to configure 2 Adjust the desired configuration in the selected parameter with the Up button and Down button 3 The available configuration options are listed for each parameter in...

Страница 16: ...ection If an adjustment is made you change the pre adjusted factory settings This is signalled with the T OF or T SL when the product is switched on The standard settings of the zero point value and t...

Страница 17: ...elected parameter with the Up button and Down button 3 The available configuration options are listed for each parameter in the following representation Representation Parameter Values Meaning Zero po...

Страница 18: ...setpoint gradient correction display gradient correction T OF 1 100 T SL 37 0 C 36 6 C 0 2 1 100 0 54 Outcome of an action The changed value is saved and the Configuration menu is closed NOTE If the p...

Страница 19: ...ntal temperature influ ence the measurement result NOTE Thermally conductive paste between the measuring sensor and surface can also in crease measurement accuracy in some cases 7 1 3 Cooling evaporat...

Страница 20: ...Battery indicator If the empty frame in the battery display blinks the batteries are depleted and must be replaced However the device will still operate for a certain length of time If the BAT displa...

Страница 21: ...requisites The product is switched off A suitable PH1 is available Instruction 1 Unscrews the Phillips screws and remove the cover 2 Carefully replace the two Mignon AA batteries Ensure that the polar...

Страница 22: ...m error Product is defective Battery depleted Error in the product Product is defective Replace battery Send in for repair BAT Battery depleted Battery depleted Replace battery ERR 1 Measuring range e...

Страница 23: ...or recycling It is also your re sponsibility to decontaminate the equipment in the event of biological chemical and or radioactive pollution in order to avoid putting any persons assigned with the dis...

Страница 24: ...ut kink protection Weight 150 g incl battery and sensor Operating conditions 20 to 50 C 0 to 95 r h temporarily 100 r h Storage temperature 20 to 70 C Current supply 2 AA battery included in the scope...

Страница 25: ...te at www vwr com All contact information of the technical customer service VWR online catalogue and information about accessories and compatible products Additional product information and special of...

Страница 26: ...el 36 52 521 130 Email info hu vwr com India VWR Lab Products Private Limited No 139 BDA Industrial Suburb 6th Main Tumkur Road Peenya Post Bangalore India 560058 Tel 91 80 28078400 Email vwr_india vw...

Страница 27: ...il info fr vwr com 0 18 TTC min Netherlands VWR International B V Postbus 8198 1005 AD Amsterdam Tel 31 020 4808 400 Email info nl vwr com Norway VWR International AS Haavard Martinsens vei 30 0978 Os...

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