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Table of Contents
Related Manuals for TESTO 521
Summary of Contents for TESTO 521
- Page 1 521 · testo 526 Instruction Manual...
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Page 2: Foreword
Foreword Dear Testo Customer, We are delighted that you have chosen a product from Testo. We hope that the product will give you a long period of satisfaction and will aid you in your work. If problems should occur which you cannot rectify yourself, please consult our service department or your dealer. -
Page 3: General Notes
General notes 3 General notes This documentation contains important information about the features and use of the product. Please read this document through carefully and familiarise yourself with the operation of the product before putting it to use. Keep this documentation to hand so that you can refer to it when necessary. -
Page 4: Table Of Contents
Content Content Foreword ..............2 General notes ............3 Content ..............4 1. Fundamental safety instructions ........ 6 2. Intended purpose ............. 7 3. Product description ..........8 Power supply ............8 Controls ..............8 Menu overview ............10 4. Commissioning ............12 Inserting the battery/rechargeable battery.... - Page 5 Contents 5 Instrument .............. 27 6.5.1 Time ................27 6.5.2 Auto. Off ................28 6.5.3 Unit ................... 28 6.5.4 Damping ................29 6.5.5 Optional ................30 Velocity ............... 30 Volume flow ..............30 Delta P ................ 31 Leakage rate ............... 31 Tightness test..............
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Page 6: Fundamental Safety Instructions
Testo. Any further or additional work must only be carried out by authorised personnel. Testo will otherwise refuse to accept responsibility for the proper functioning of the instrument after repair and for the validity of certifications. Ensure correct disposal: Dispose of defective rechargeable batteries and spent batteries at the provided col- lection points. -
Page 7: Intended Purpose
2. Intended purpose Employ the instruments for the following applications only: The testo 521 and testo 526 instruments are handheld pressure-measuring instru- ments that were developed specifically for use in air conditioning / ventilation equipment, thermal engineering, automotive engineering and industrial plant engineering. The main... -
Page 8: Product Description
3. Product description 3.1 Power supply 3. Product description 3.1 Power supply Power is supplied to the testo 521/526 optionally via: - 9 V monobloc battery, type: IEC 6LR61 (included) - 9 V monobloc rechargeable battery, type: NiMH IEC 6F22 (0515 0025) - Mains connection and battery charging via mains unit 0554 0088, see also page 38 6.6.3 Battery... - Page 9 3. Product description 3.2 Controls Display Header (see detailed explanation of icons below: Icons in the header) Designation of internal sensor or input socket 1 with selected channel and parameter unit Reading 1 Designation of input socket 1 or 2 with selected ...
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Page 10: Menu Overview
3.3 Menu overview 3.3 Menu overview : Open menu, : Select menu, : Back The menu numbers appear in the topmost line of the display. Example: testo 521 Measurement Memory menu menu 1 Manual / = 5 Instrument —> 3 Unit Automatic/ —>... - Page 11 3. Product description 3.3 Menu overview MUF menu 1 Input 2 Unit MUF word menu 1 Voltage/current 3 Resolution 2 Temperature 4 Output 3 Humidity 4 Velocity 5 Pressure 6 Analysis 7 Other Units Pa (ISO/US) hPa (ISO/US) mbar (ISO/US) kPa (ISO/US) bar (ISO/US) psi (ISO/US)
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Page 12: Commissioning
4. Commissioning 4.1 Inserting the battery / rechargeable battery 4. Commissioning Charge batteries properly! Danger of explosion! Only start the charging process if a recharge- Caution able battery is in the instrument and Rech. has been set as the battery type. 4.1 Inserting the battery / rechargeable battery (Rechargeable battery type: NiMH IEC 6F22) -
Page 13: Connecting Probes/Sensors
4. Commissioning 4.3 Connecting probes / sensors 4.3 Connecting probes/sensors Connect the probes / sensors before switching the instrument on. Probe-specific characteristics are only read in when the instrument is switched on. Make sure the connections are secure, but do not use force! Connect the plug/hoses of the probes/sensors to the corresponding connections of the instrument: 1 Pressure hoses at p+ and p-... -
Page 14: Basic Operating Steps
5. Basic operating steps 5.1 Switching on / off 5. Basic operating steps 5.1 Switching on/off Switching on Connect the required probes/sensors before swit- ching on. 1 Switch the instrument on with A display test will follow: all segments of the display will light up for approx. -
Page 15: Menu Navigation
5. Basic operating steps 5.2 Menu navigation Switching off Readings which are not saved will be lost when the instrument is switched off! Switch the instrument off with 5.2 Menu navigation Operation is organised into 3 levels: - Measurement menu - Main and submenus - Configuration menus 1 Open the main menu with... -
Page 16: Menu Functions
- The location that is currently set will be displayed. If a measurement location was allocated via the testo ComSoft software, this is displayed as well. - If data is already stored for the chosen location, illuminates. L o c a t i o n... -
Page 17: Memory
6. Menu functions 6.1 Measurement location 6.2 Memory 521 526 MAN. In the main menu, choose the measurement location M e m o r y with Select required location with and confirm with 1 In the main menu, select Memory with... -
Page 18: Configuration
6. Menu functions 6.2 Memory 6.2.2 Configuration 521 526 (only available in the Fast/Automatic measurement program) M e a s R . h r s . Set how the measurement program is to function. Measurement program Auto. 4 Set the measuring rate in hrs., min. and sec. with m i n. -
Page 19: Data Transfer
6. Menu functions 6.2 Memory Date: 27.08.2003 Time: 10:15:35 Testo AG Location: 01 Printout of current reading in the measurement menu Meas. from: 27.08.2003 Time: 10:15:35 1.1: 918 hPa 2.1: 27.0 °C Date: 27.08.2003 Time: 10:15:35 Testo AG Location: 01 Date Time from: 27.08.2003... -
Page 20: Status
6. Menu functions 6.2 Memory 6.2.4 Status 521 526 Indicates the available memory space as a %. S t a t u s F r e e 65.5 6.2.5 Clearing 521 526 The Clear menu item allows the entire memory to be C l e a r cleared. -
Page 21: Probes
6.3 Probes 521 526 Menu is activated only if external probes are S o c k e t 2 connected. 1 In the main menu, select Probes with and confirm the selection with 2 Select the desired socket with confirm the selection with... -
Page 22: Scaling U/I
6. Menu functions 6.3 Probes 6.3.2 Scaling U/I 521 526 This function is only visible if the 4 - 20 mA interface (0554 0528) or the power supply cable (0554 0007) is S c a l . U / I connected. -
Page 23: F-Reset
6. Menu functions 6.3 Probes Resolution 521 526 Selecting decimal places Place Min. value Max. value -9999 99999 -999.9 9999.9 -99.99 999.99 Setting the output 521 526 Scaling takes place when the unit has been selected. Example: 4 - 20 mA should correspond to 0 - 100 % in the subsequent display. -
Page 24: Input
6. Menu functions 6.4 Input 6.4 Input For velocity measurement with the Pitot tube, the internal pressure sensor 0 - 100 hPa is the best for velocities from 5 - 100 m/s. For measurements in the range of 1 - 12 m/sec., use the external differential pressure probe 0638 1347 with measuring range 0 - 100 Pa. -
Page 25: Temperature
6. Menu functions 6.4 Input 6.4.1 Temperature Set the temperature which is to be used to calculate T e m p . the density. 4 Select the temperature with (-100 °C - 800 °C) (hold the key down to go for- ward / back quickly) and confirm the selection with °... -
Page 26: Cross-Section
P f a c t o r Set the Pitot tube factor that will be used to calculate readings. - Testo standard Pitot tube (Prandl), factor 1 - Straight Pitot tubes, factor 0.67 4 Select the P factor (0.01 - 500) with 1.00... -
Page 27: Instrument
6. Menu functions 6.5 Device 6.5 Instrument In the main menu, select Instrument with and confirm the selection with 2 Select the desired function / menu with D e v i c e Select Optional: Confirm the selection with and select the desired function with 3 Activate setting mode with 6.5.1 Time... -
Page 28: Auto. Off
6. Menu functions 6.5 Device 6.5.2 Auto. Off Set whether the instrument is to switch off automati- cally after 10 min. without any key being pressed. 4 Select On or Off with and confirm the selection with A u t o . o f f - If you select On: the instrument will switch off auto- matically after 10 min. -
Page 29: Damping
6. Menu functions 6.5 Device ISO/ US Set whether European (metric) or US units are to be displayed. The following units will be converted: - ft , mm - inch, g/m - gr/ft , m/sec. - fpm, I S O / U S /h - cfm, units of pressure 4 Select ISO or US with and confirm... -
Page 30: Optional
6. Menu functions 6.5 Device 6.5.5 Optional O p t i o n a l Velocity Set whether the calculated velocity is to be shown on the display. V e l o c i t y 4 Select On or Off with and confirm the selection with - If you select On: the calculated velocity will be... -
Page 31: Delta P
6. Menu functions 6.5 Device Delta P Set whether the differential pressure of two pressure probes is to be shown on the display. Calculating the differential pressure (P1-P2): If one external pressure probe is connected, the diffe- P 1 - P 2 rential pressure is calculated from the internal pressu- re sensor (P1) and external pressure probe (P2). -
Page 32: Slowdown Time
6. Menu functions 6.5 Device The steps for performing the tightness test “Test with air”, based on the standard DIN EN1610 “Construc- tion and testing of drains and sewers”, are outlined in the instrument menu: - Enter the set slowdown time (tSlDoReq) - Enter the set test time (tTestReq) - Enter the set test pressure at which the measure- ment is to take place (P Req.) -
Page 33: Test Time
6. Menu functions 6.5 Device Test time (tTestReq) Set the test time during which the pressure drop is monitored. The test time is taken from DIN EN 1610 t T e s t R e q . (see table below). For a fast input please use the ComSoft 0554 0830. -
Page 34: Nominal Test Pressure
6. Menu functions 6.5 Device Required test pressure p (P Req.) Set the required test pressure at which measurement is carried out. Required test pressure according to P R e q . DIN EN1610 (see table on previous page). 6 Activate setting mode with Select the P Req. - Page 35 6. Menu functions 6.5 Device Graphic overview of the measurement process Pre-fill Slowdown Test time Drop time time time Phase 1: Pre-fill time 01:05 Build-up of the pressure in the pipe system and the actual duration. 1 . 1 h P a Jump to the slowdown time menu automatically with P r e - f i l l Phase 2: Slowdown time...
- Page 36 6. Menu functions 6.5 Device Phase 3: Test time 0030 Recording of the actual test duration. Jump to the drop time menu automatically with 1 . 1 h P a P Phase 4: Drop time 0030 Record of the duration of the pressure drop in the line. Jump to the end of measurement menu automatically 1 .
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Page 37: Service
V e r s i o n D a t a all information stored 0.10 in the instrument will Mustermann be printed out. Testo Str. 1 Testo AG B A T 07653/681-0 InstrumentType: t521 6.6.2 Language Version : 0.14... -
Page 38: Battery Type
6. Menu functions 6.6 Service 6.6.3 Bat. type Set whether an ordinary battery or a rechargeable bat- tery is inserted in the instrument. The battery in the instrument can only be recharged B a t . t y p e if it is a rechargeable battery and this is set as the battery type. -
Page 39: Measuring
< 2.5 % of the full-scale value (at testo 5213 reset <20% of the full scale value). Zero the display values of all connected (zeroable) pressure probes with i . - Page 40 7. Measuring 7.3 Activating measuring functions Max. 30.5 521 526 The highest readings since the start of measurement are displayed. Min. 15.7 521 526 The lowest readings since the start of measurement are displayed. Mean N 0011 521 526 1 Activate calculation of the spot mean value with i .
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Page 41: Saving Readings
Cancel the process with 7.4 Saving readings 521 526 For the readings to be saved, the instrument must be in the measurement menu. Before you save the readings, you must select the measurement location under which the data is to be saved (see 6.1 Measurement location). -
Page 42: Printing Readings
7. Measuring 7.5 Printing readings 7.5 Printing readings 0005 521 526 To print all readings stored for a measurement locati- i . 1 h P a on (see 6.2.3 Printing) 10.08 To print individual readings, the instrument must be in the measurement menu. -
Page 43: Care And Maintenance
8. Care and maintenance 43 8. Care and maintenance 8.1 Changing the bat- tery / rechargeable battery (Rechargeable battery type: NiMH IEC 6F22) To avoid the loss of data, it is imperative that you switch the instrument off when changing the bat- tery/rechargeable battery and replace the battery in <... - Page 44 8. Care and maintenance 4 Connect the mains plug to the mains socket. 5 Question as to whether rechargeable battery c h a r g e should be charged. Select Yes with and confirm with The charging process will start automatically. flashes during the charging process and the actual battery voltage is displayed.
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Page 45: Troubleshooting
Offset factor or cross-section input incorrect Enter correct offset or cross-section If we were unable to answer your question, please contact your distributor or Testo Customer Service. For contact data, see back of this document or web page www. testo.com/service-contact... -
Page 46: Technical Data
10.1 Measuring ranges and accuracies 10. Technical data 10.1 Measuring ranges and accuracies Instruments testo 521-1, inte- testo 521-2 inte- testo 521-3, inte- testo 526-1 inte- testo 526-2 inte- grated differential grated differential grated differential grated differential grated differential pressure sensor pressure sensor... -
Page 47: Other Instrument Data
10. Technical data 10.2 Other instrument data 10.2 Other instrument data Power supply 9 V monobloc (6LR61), alkaline manganese or mains unit 12 V DC Probe interface Round 8-pin plug PC interface ComSoft V3.4; connecting lead 0409 0178 RS232 interface Printer interface Infrared Measuring data memory... -
Page 48: Accessories / Spare Parts
Differential pressure meter testo 521-2, accuracy ±0.1 % of full scale value 0560 5211 Differential pressure meter testo 521-3, accuracy ±0.5Pa (0 to 20Pa); ±(0.5Pa + 0.5% of reading) (20...250Pa) 0560 5213 Differential pressure meter testo 526-1, accuracy ±0.1 % of full scale value 0560 5280 Differential pressure meter testo 526-2, accuracy ±0.05 % of full scale value... - Page 49 0409 0202 RS232 cable, connecting lead from PC to instrument (1.8 m) for data transfer 0409 0178 testo printer with 1 roll of thermal paper and 4 mignon batteries 0554 0545 Charger for printer (with 4 standard rechargeable batteries) 0554 0110...
- Page 50 50 11. Accessories / Spare parts Article Order no. Temperature calibration certificates ISO temperature calibration certificate, for air/immersion probes, calibration points -18 °C, 0 °C, 60 °C 0520 0001 ISO temperature calibration certificate, instruments with air/immersion probes, calibration points 0 °C, 150 °C, 300 °C 0520 0021 ISO temperature calibration certificate, instruments with surface probes, calibration points 60 °C, 120 °C, 180 °C 0520 0071 DKD temperature calibration certificate, for air/immersion probes, calibration points -20 °C, 0 °C, 60 °C...
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