TESTO 625 Manuel utilisateur

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2

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Instruction manual

Contents

General notes ....................................................20

1. Safety advice......................................................21

2. Intended purpose ..............................................22

3. Product description............................................23

3.1 Display and control elements ........................................23

3.2 Interfaces ......................................................................24

3.3 Voltage supply ..............................................................24

4. Commissioning ..................................................25

5. Operation ..........................................................26

5.1 Connecting a probe ......................................................26

5.2 Switching the instrument on / off ..................................26

5.3 Switching the display light on / off ................................27

5.4 Performing settings ......................................................27

6. Measuring ..........................................................31

7. Care and maintenance ......................................32

8. Questions and answers......................................33

9. Technical data ....................................................34

10. Accessories/spare parts ....................................35

testo 625

Humidity/temperature measuring instrument

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

General notes20

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

Note Offers helpful tips and information.

±, 1, 2 Objective Denotes the objective that is to be

achieved via the steps described. Where

steps are numbered, you must always

follow the order given!

Condition A condition that must be met if an action

is to be carried out as described.

i, 1, 2, ... Step Carry out steps. Where steps are

numbered, you must always follow the

order given!

Text Display text Text appears on the instrument display.

Control button Press the button.

- Result Denotes the result of a previous step.

ºCross-reference Refers to more extensive or detailed

information.

Button

1. Safety advice 21

1. Safety advice

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

iDo not use the measuring instrument and probes to

measure on or near live parts.

iNever store the measuring instrument/probes together

with solvents and do not use any desiccants.

Product safety/preserving warranty claims

iOperate the measuring instrument only within the

parameters specified in the Technical data.

iAlways use the measuring instrument properly and for its

intended purpose. Do not use force.

iDo 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 / sensors relate only to

the measuring range of the sensors.

iOpen the instrument only when this is expressly

described in the documentation for maintenance and

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

iTake faulty rechargeable batteries/spent batteries to the

collection points provided for them.

iSend 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.

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1. Safety advice22

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 625 is a compact measuring instrument for

measuring humidity and temperatures by means of a plug-

in humidity/temperature probe (humidity module) and/or a

humidity/temperature probe with radio transmission (radio

module accessory part required).

The product was designed for the following

tasks/applications:

· Measuring room climate

· Buildings, offices, warehouses

The product should not be used in the following areas:

· Areas at risk of explosion.

· Diagnostic measurements for medical purposes

3. Production description 23

3. Product description

This chapter provides an overview of the components of

the product and their functions.

3.1 Display and control

elements

Overview

Probe socket

Display

Control buttons

Battery compartment (rear)

Radio module and service

compartment (rear)

Button functions

Button Functions

Switch instrument on;

switch instrument off (press and hold)

Switch display light on / off

Keep reading, display

maximum/minimum value

Open/leave configuration mode (press

and hold);

In configuration mode:

Confirm input

In configuration mode:

Increase value, select option

In configuration mode:

Reduce value, select option

Change between displaying relative

humidity, dew point and wetbulb

temperature.

Change between displaying connected

probe and radio probe ( lit).

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3. Production description24

Important displays

Display Meaning

Battery capacity (bottom right in display):

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

charged

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

Measurement channel: Radio probe (the number of “radio wave”

segments shown indicates the strength of the signal)

Battery capacity of radio probe (above the radio probe symbol :

Radio probe battery is almost spent

3.2 Interfaces

Probe socket

A plug-in measuring probe can be connected via the probe

socket on the head of the instrument.

Radio module (accessory part)

Radio probes may only be used in countries in which

they have been Type Approved (see application infor-

mation of the radio probe).

A radio measuring probe can be connected via the radio

module.

3.3 Voltage supply

Voltage is supplied by means of a 9V monobloc battery

(included in delivery) or rechargeable battery. It is not

possible to run the instrument from the mains supply or

charge a rechargeable battery in the instrument.

4. Commissioning 25

4. Commissioning

This chapter describes the steps required to commission

the product.

²Inserting aarradio mmodule ((accessory ppart):

Radio probes may only be used in countries in which

they have been Type Approved (see application infor-

mation of the radio probe).

The instrument is switched off.

1To open the radio module compartment on the rear of

the instrument, push the clip lock downwards and

remove the lid of the radio module compartment.

2Insert the radio module.

3To close the radio module compartment, replace the

radio module compartment lid and close it.

²Inserting aabbattery/rechargeable bbattery:

1To open the battery compartment on the rear of the

instrument, push the lid of the battery compartment in

the direction of the arrow and remove it.

2Insert a battery/rechargeable battery (9V monobloc).

Observe the polarity!

3To close the battery compartment, replace the lid of

the battery compartment in position and push it

against the direction of the arrow.

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5. Operation26

5. Operation

This chapter describes the steps that have to be 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.

iInsert the connector of the probe into the probe

socket.

Radio probes

Radio probes may only be used in countries in which

they have been Type Approved (see application infor-

mation 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 instrument.

Each radio probe has a probe ID (identification number).

This must be set in configuration mode.

ºSee the chapter PERFORMING SETTINGS.

5.2 Switching the instrument

on / off

²Switching tthe iinstrument oon:

iPress .

- Measurement view is opened: The current reading

is displayed, or ----- lights up if no reading is

available.

5. Operation 27

²Switching tthe iinstrument ooff:

iPress and hold (for approx. 2s) until the display

goes out.

5.3 Switching the display

light on / off

²Switching tthe ddisplay llight oon/off:

The instrument is switched on.

iPress .

5.4 Performing settings

1To oopen cconfiguration mmode:

The instrument is switched on and is in measurement

view. Hold, Max or Min are not activated.

iPress and hold (for approx. 2s) until the display

changes.

- The instrument is now in configuration mode.

You can change to the next function with .

You can leave configuration mode at any time. To do

so, press and hold (for approx. 2s) until the

instrument has changed to measurement view. Any

changes that have already been made in configuration

mode will be saved.

2Carrying oout aahhumidity ccalibration:

A 2-point calibration of connected humidity probes can

be carried out (11.3%RH and 75.3%RH).

Configuration mode is opened, CAL is lit.

1Select the desired option with /and confirm

with :

·oFF: Humidity calibration is not carried out.

·on: Humidity calibration is carried out.

oFF was selected:

ºContinue with objective TO REGISTER THE RADIO PROBE.

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5. Operation28

on was selected:

2Put the humidity probe into the reference medium and

wait for the equalisation period to elapse.

- The current humidity reading and the calibration

point (nominal value) are displayed.

3Start the calibration menu with .

4Select the desired option with /and confirm

with :

·no: Humidity value is not calibrated.

·YES: Humidity value is calibrated.

no was selected:

ºContinue with step 5.

YES was selected:

- The calibration is carried out.

5Repeat steps 2to 4for the 2nd calibration point.

- When calibration has been completed, the

instrument changes to the next setting function.

3To rregister tthe rradio pprobe:

Radio probes may only be used in countries in which

they have been Type Approved (see application infor-

mation of the radio probe).

The setting function for radio probes is only available if

a radio module (accessory part) is inserted into the

measuring instrument.

ºSee the chapter COMMISSIONING.

If no radio module is inserted:

ºContinue with the objective TO SET AUTO OFF.

Each radio probe has a probe ID (RF ID). This consists of

the last 3 digits of the serial no. and the position of the

slide switch in the radio probe (Hor L).

Configuration mode is opened, is flashing and AUTO

is lit.

The radio probe is switched on and the transfer rate is

set to 2 readings per second (see the advice on using

the radio probe).