Testo 435 Operating Manual

Multifunction measuring instrument

testo 435

Bedienungsanleitung de

Instruction manual en

Contents

General notes ....................................................34

1. Safety instructions..............................................36

2. Intended purpose ..............................................37

3. Product description............................................38

3.1 Display and control elements ........................................38

3.2 Interfaces ......................................................................40

3.3 Voltage supply ..............................................................40

4. Commissioning ..................................................41

5. Operation ..........................................................42

5.1 Connecting a probe ......................................................42

5.2 Switching on/off ............................................................42

5.3 Display light ..................................................................43

6. Setting the instrument ........................................44

6.1 Configuration menu ......................................................44

6.1.1 Profile..............................................................................44

6.1.2 Units ..............................................................................45

6.1.3 Device ............................................................................45

6.1.4 Probe..............................................................................47

6.1.5 Language........................................................................50

6.2 Main menu....................................................................50

6.2.1 Memory (435-2 / -4 only) ................................................52

6.2.2 Measuring program (435-2 / -4 only) ..............................53

6.2.3 Mean ............................................................................54

6.2.4 P = 0 (435-3 / -4 only) ....................................................54

6.2.5 Calculation ......................................................................55

Parameter / Area ............................................................56

6.2.6

6.2.7 Cyclical Print (435-1/-3 only) ..........................................57

7. Measuring ..........................................................58

8. Care and maintenance ......................................61

9. Questions and answers......................................62

10. Technical data ....................................................63

11. Accessories / spare parts ..................................65

General notes34

General notes

This chapter provides important advice on using this documentation.

The documentation contains information that must be applied if the product is to be used safely and efficiently.

Please read this documentation through carefully and familiarise yourself with the operation of the product before putting it to use. Keep this document to hand so that you can refer to it when necessary.

Identification

Representation Meaning Comments

Warning advice: Warning! Read warning advice carefully and take the precautionary measures

indicated! Serious physical injury could occur if you do not take the precautionary measures indicated.

Warning advice: Caution! Read warning advice carefully and take the precautionary measures

Note Offers helpful tips and information.

±, 1, 2 Objective Denotes the objective that is to be achieved via the steps described.

 Condition A condition that must be met if an action is to be carried out as

i, 1, 2, ... Step Carry out steps. Where steps are numbered, you must always follow

Text Display text Text appears on the instrument display.

Button

- Result Denotes the result of a previous step.

º Cross-reference Refers to more extensive or detailed information.

Control button Press the button. Function button Press the button.

indicated! Slight physical injury or damage to equipment could occur if you do not take the precautionary measures indicated.

Where steps are numbered, you must always follow the order given!

described.

the order given!

General notes 35

Short form

This document uses a short form for describing operating steps (e.g. calling up a function).

Example: Calling up the “Instrument data” function Short form: Device ¬¬Inst.data ¬ .

1) (2) (3) (4)

(

OKOK

Steps required:

1 Press / to select the Device function. 2 Confirm selection with . 3 Press / to select the Inst.data function. 4 Confirm selection with .

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1. Safety instructions36

1. Safety instructions

This chapter gives general rules which must be followed and observed if the product is to be handled safely.

Avoid personal injury/damage to equipment

i Do not use the measuring instrument and probes to measure on or near live

parts.

i Never store the measuring instrument/measuring cells together with solvents

and do not use any desiccants.

Product safety/preserving warranty claims

i Operate the measuring instrument only within the parameters specified in the

Technical data.

i Always use the measuring instrument properly and for its intended purpose.

Do not use force.

i Do not expose handles and feed lines to temperatures in excess of 70 °C

unless they are expressly permitted for higher temperatures. Temperatures given on probes relate only to the measuring range of the sensors.

i Open the instrument only when this is expressly described in the

documentation for maintenance or repair purposes. Carry out only the maintenance and repair work that is described in the documentation. Follow the prescribed steps when doing so. For safety reasons, use only original spare parts from Testo.

Ensure correct disposal

i Take faulty rechargeable batteries/spent batteries to the collection points

provided for them.

i Send the product back to Testo at the end of its useful life. We will ensure

that it is disposed of in an environmentally friendly manner.

1. Safety instructions 37

Instruments with radio module 915.00MHz FSK

Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

· Reorient or relocate the receiving antenna.

· Increase the separation between the equipment and receiver.

· Connect the equipment into an outlet on a circuit different from that to which the receiver is needed.

· Consult the dealer or an experienced radio/TV technician for help. Operation is subject to the following two conditions:

· this device may not cause harmful interference, and

· this device must accept any interference received, including interference that may cause undesired operation.

2. Intended purpose

This chapter gives the areas of application for which the product is intended.

Use the product only for those applications for which it was designed. Ask Testo if you are in any doubt.

testo 435 is a compact, multifunction measuring instrument for measuring temperature, humidity and flow rate.

The product was designed for the following tasks/applications:

· Measuring room climate

· Regulating and inspecting ventilation and air-conditioning installations

· Measuring the pressure dew point in compressed air systems

· Assessing the quality of room air with the help of the IAQ probe

The product should

· Areas at risk of explosion.

· Diagnostic measurements for medical purposes.

not

be used in the following areas:

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3. Product description38

3. Product description

This chapter provides an overview of the components of the product and their functions.

3.1 Display and control elements

Overview

 Infrared, USB interface  Display (light can be activated)  Control buttons  Rear: Battery and radio module compartment, holding

magnets

Strong magnets Damage tto oother iinstruments!

Keep a safe distance from products which could be damaged by magnetism (e.g. monitors, computers, pacemakers, credit cards).

 Probe socket(s)

Button functions

Button Functions

Function button (3x): The function depends on the button assignment at the time

Change display of the 1 In configuration mode: Increase value, select option

Change display of the 2 In configuration mode: Decrease value, select option

Print data 435-1/-3 only: If the Cyclical Printing function is activated, the programmed measuring program is started.

Switch instrument on, switch display light on/off; switch instrument off (press and hold)

reading line

3. Product description 39

Function buttons (Function dependant on profile and setting)

Button Functions

Open (main) menu

ESC

ACTHold

/ Hold value/display current measurement value

Reset

Mean

Measp

Start

End

Save

Turb

Area

P=0

Enter confirmation Cancel

Reset max./min. values to current measurement value Open menu item “Multi-point mean calculation“ Open menu item “Measuring program“ (435-2/-4 only)

435>

Start test series (435-2/-4 only) End test series (435-2/-4 only), End Cyclical Print (435-1/ -3 only) Save values (435-2/-4 only) Activate “Turb“ test series (435-2/-4 only with attached turbulence probe) Open menu item “Area” Zero internal pressure sensor (435-3/-4 only)

Important displays

Display Meaning

Battery capacity (only for operation by battery/rechargeable battery):

· 4 segments in the battery symbol are lit: Instrument battery is fully charged

· No segments in the battery symbol are lit: Instrument battery is almost spent

(flashing) Print function: Data are sent to the printer

435-3/-4 only: Measurement channel differential pressure (internal sensor)

, Measurement channel no.: Channel 1, channel 2.

If a measurement channel is a radio channel, the radio symbol lights up as well as the measurement channel no.

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3. Product description40

3.2 Interfaces

Infrared interface

Measurement data can be sent to a Testo printer via the infrared interface on the head of the instrument.

USB interface

The mains unit (accessory part) can be connected to the head of the instrument via the USB interface to power the instrument.

Instruments with a memory: Measurement/instrument data can be exchanged with a PC via the USB interface.

Probe socket(s)

Plug-in measuring probes can be connected via the probe socket(s) on the base of the instrument. The instrument is a HighPower device, possibly an additional USB-Hub is required!

Radio module (accessory part)

Radio probes may only be used in countries in which they have been Type Approved (see application information of the radio probe).

Up to three radio probes can be connected via the radio module.

3.3 Voltage supply

Voltage is supplied via three mignon batteries (included in delivery) or rechargeable batteries or through a mains unit (accessory part). It is not possible to charge rechargeable batteries in the instrument.

When operating the instrument with the mains unit, insert batteries in order to avoid switching off the instrument in case of a power interruption.

4. Commissioning 41

4. Commissioning

This chapter describes the steps required to commission the product.

Inserting bbatteries/rechargeable bbatteries aand aa rradio mmodule ((accessory

part):

1 Undo the two screws on the rear of the instrument and lift off the battery

compartment cover.

2 Insert batteries/rechargeable batteries (3x mignon) into the battery

compartment. Observe the polarity!

3 Push the radio module (accessory part) into the radio module

compartment until it engages in place. Note the guide groove.

4 Replace the battery compartment cover, press down and secure by

tightening the two screws.

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5. Operation42

5. Operation

This chapter describes the steps that are executed frequently when using the product.

5.1 Connecting a probe

Plug-in probes

Plug-in probes must be connected before the measuring instrument is switched on so that they are recognised by the instrument.

i Insert the connector of the probe into the probe socket of the measuring

instrument.

Radio probes

Radio probes may only be used in countries in which they have been Type Approved (see application information of the radio probe).

A radio module (accessory part) is required for the use of radio probes. The radio module must be connected before the measuring instrument is switched on so that it is recognised by the measuring instrument.

Each radio probe has a probe ID (identification number) which must be set in configuration mode.

º See chapter PROBE, p. 47.

5.2 Switching on/off

Switching tthe iinstrument oon:

i Press .

- Measurement view is opened: The current reading is displayed, or

---- lights up if no reading is available. Instruments with a memory: The activated location is displayed (topmost line).

-oor- The instrument is switched on for the first time, a reset was carried out or

the power supply was interrupted for a lengthy period of time:

- The Language function is opened.

º See the chapter

LANGUAGE, p. 50.

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