622 - Measuring equipment Testo - Free user manual and instructions

Product type	Laboratory condition display
Brand	Testo
Model	622
Measured parameters	Temperature, relative humidity, absolute pressure
Temperature measuring range	-10 to +60 °C
Humidity measuring range	0 to 100 % RH (non-condensing)
Pressure measuring range	300 to 1200 hPa
Temperature accuracy	±0.4 °C + 1 digit
Humidity accuracy	±2 % RH + 1 digit (10-90 % RH at 25 °C), ±3 % RH remainder
Pressure accuracy	±3 hPa + 1 digit
Resolution	Temperature 0.1 °C, humidity 0.1 % RH, pressure 0.1 hPa
Measurement interval	10 seconds
Power supply	4 AA batteries (alkaline or rechargeable)
Battery life	At least 12 months
Dimensions (W x H x D)	185 x 105 x 36 mm (without clip), 185 x 112 x 47 mm (with clip unfolded)
Weight	Approx. 240 g (without batteries)
Housing material	ABS
Protection type	IP30
Mounting	Wall or table mount (integrated clip)
Display	Temperature, humidity, pressure, date, time, max/min values
Alarm functions	High/low limits for temperature and humidity, LED indicator
Calibration reminder	Yes, programmable
Maintenance and cleaning	Clean with a damp cloth; do not use solvents or compressed air
Optional accessories	Calibration software with USB cable (ref. 0554 6230), calibration certificates
Warranty	24 months (conditions at www.testo.com/warranty)

Frequently Asked Questions - 622 Testo

How to set the date and time on the Testo 622?

Press and hold the Set button for 2 seconds to enter the menu. Use Set to navigate to 'Update date & time?', then select Yes. Follow the prompts to set the date format, year, month, day, hour, minutes, and seconds. Confirm each step with Set.

How to change the temperature unit from °C to °F?

In the configuration menu, navigate to the screen where °C is flashing (step 5 in the diagram). Use ▲ or ▼ to toggle between °C and °F, then confirm with Set. The limit values will be converted automatically.

How to set the alarm thresholds (high and low limits)?

Press and hold Set for 2 seconds. Use Set to reach the limits screen (step 1 in the diagram). Turn ON/OFF for each limit (high/low temperature, high/low humidity) with ▲/▼ then set the value when the digit flashes. Confirm with Set.

How to display the recorded maximum and minimum values?

Press the Max button to display the maximum temperature and humidity (with time). Press Min for the minimum values. To reset a value, press and hold the corresponding button for 2 seconds.

What does the display 'LO' or 'HI' on the screen mean?

'LO' indicates that the temperature is below -20 °C, 'HI' that it exceeds +70 °C. The device cannot measure outside its operating range (-20 to +70 °C). Check the ambient conditions.

How to replace the batteries of the Testo 622?

Open the battery compartment on the back of the device. Remove the old batteries and insert 4 new AA batteries, observing polarity. Close the compartment. The device turns on automatically. Settings are retained for at least 3 minutes after power loss.

How to clean the device?

Use a damp cloth (mild soapy water) to clean the housing. Do not use solvents, abrasive cleaners, or compressed air to avoid damaging the sensors.

How to mount the Testo 622 on the wall?

Use the mounting clip integrated into the housing. Unfold the clip to reveal the mounting holes (63 mm spacing). Screw it to the wall with suitable wall plugs. The device can also be placed on a table.

What accessories are available for this model?

You can purchase the calibration and configuration software with USB cable (ref. 0554 6230) and calibration certificates (COFRAC ref. 0520 8206, ISO ref. 0520 0006).

How to interpret the pressure display?

Press the hPa button to toggle between absolute pressure and barometric pressure. You can also set the altitude above sea level in the configuration menu (step 2) to obtain a corrected barometric pressure.

USER MANUAL 622 Testo

testo 622 · Scientific Ambient Monitor

Bedienungsanleitung

testo 622 · Scientific Ambient Monitor

Instruction manual

Labeled diagram of a device rear panel with numbered components and warning label

1 Contents....23
2 Safety and the environment....24

2.1. About this document....24
2.2. Ensure safety....25
2.3. Protecting the environment....25

3 Specifications 25

3.1. Use 25
3.2. Scope of delivery 26
3.3. Technical data 26

4 Product description....27

4.1. Overview....27
4.2. Basic properties....29

5 First steps 29
6 Using the product....30

6.1. Commissioning....30
6.2. Setting the limits ......31
6.3. Performing settings....31
6.4. Flowchart....32
6.5. Measuring....36

7 Maintaining the product....37
8 Tips and assistance....38

8.1. Accessories and spare parts 38
8.2. Questions and answers....38

2 Safety and the environment

2.1. About this document

Use

Please read this documentation through carefully and familiarize yourself with the product before putting it to use. Pay particular attention to the safety instructions and warning advice in order to prevent injuries and damage to the products.
Keep this document to hand so that you can refer to it when necessary.
Hand this documentation on to any subsequent users of the product.

Symbols and writing standards

Representation	Explanation
	Warning advice, risk level according to the signal word:Warning! Serious physical injury may occur.Caution! Slight physical injury or damage to the equipment may occur.> Implement the specified precautionary measures.
i	Note: Basic or further information.
1. ...2. ...	Action: more steps, the sequence must be followed.
> ... Action: a step or an optional step.
- ... Result of an action.
Menu	Element of the instrument or instrument display.
[Set]	Control keys of the instrument.
... | ... Functions/paths within a menu.
“...”	Example entries

2.2. Ensure safety

Do not store the product together with solvents. Do not use any desiccants.
Only use the device in closed, dry rooms and protect it from rain and moisture.
Only operate the product properly, for its intended purpose and within the parameters specified in the technical data. Do not use any force.

2.3. Protecting the environment

Dispose of faulty rechargeable batteries/spent batteries in accordance with the valid legal specifications.
At the end of its useful life, send the product to the separate collection for electric and electronic devices (observe local regulations) or return the product to Testo for disposal.

3 Specifications

3.1. Use

The instrument is a display instrument that was developed for monitoring ambient conditions in laboratories during test setups and calibrations.

The parameters of temperature, humidity and pressure can be viewed at a glance on the display.

The instrument can be mounted on the wall or placed on the workbench.

3.2. Scope of delivery

The delivery of the testo 622 includes:

• Measuring instrument testo 622 (art. no. 0560 6220)
- Instruction manual
- Calibration report
- Mounting material
- Guarantee card
- 4 batteries (AA)

3.3. Technical data

Characteristic Values
Parameters	Temperature / Humidity / Absolute pressure
Units °C/°F	% RH, td, wbhPa, mbar, kPa, in Hg, in H2O, psi
Resolution Temperature: 0.1 °CHumidity: 0.1 %RHAbsolute pressure: 0.1 hPa
Measuring range Temperature: -10 to +60 °CHumidity: 0 to 100 % RH (non-dewing)Absolute pressure: 300 to 1200 hPa
Accuracy	Temperature:± 0.4 K + 1 digitHumidity:±2 %RH + 1 digit at 25 °C (10 to 90 %), ±3 % RH rest of rangeAbsolute pressure:±3 hPa + 1 digit
Measuring rate 10 s
Operating temperature	-10 to +60 °C
Storage temperature	-20 to +60 °C
Battery type 4 x AA
Battery life at least 12 months
Housing material ABS
Protection class IP 30
Weight approx. 240 g (without batteries)
Dimensions(LxWxH in mm)	185x105x36185x112x47 (mounting clip folded out)
Warranty	24 months, warranty conditions: see website www.testo.com/warranty
EC Directive 2004/108/EC

4 Product description

4.1. Overview

23.4°C 1023.6 hPa 70.01 54.6% 11:54:45 AM 35.01 24.12.2009 testo 622 Calibration! Max Min %RH hPa Set Esc > Alarm * ① ②

① Keypad

Key Function
Max	Display max. value
Min	Display min. value
%rH	Set unit for humidity
hPa	Display pressure settings
	Change settings
	Change settings
Set	Confirm settings
Esc	Cancel input
■Alarm■	Acknowledging an alarm

② Sensors

Labeled diagram of a device showing internal components and safety warning label

③ Attachment device
④ Battery compartment and instrument interface
⑤ Mounting clip and wall fixture (integrated into housing)

4.2. Basic properties

Power supply

The instrument is powered optionally by:

- 4 batteries / rechargeable batteries, type AA

Wall mounting

The distance between the upper and lower drill hole is 63 mm.

5 First steps

Removing the protective film

Remove the protective film from the display

Inserting batteries/rechargeable batteries

1. Open the battery compartment on the rear of the instrument.
2. Insert batteries/rechargeable batteries (observe the polarity!)
3. Close the battery compartment.

6 Using the product

6.1. Commissioning

The date and time must be set on commissioning.

1. Select the required function with [Set].

If no button is pressed > 30 sec, the testo 622 changes to Measuring Mode. To perform additional settings, press and hold [Set] for 2 sec.

The adjustable parameter flashes.

1. Set values with [▲] or [▼] and confirm entry with [Set] (for settings, see following table).

To scroll rapidly forward and back in the relevant menu, press and hold [▲ or ▼].

Press [Esc] to cancel settings without saving them.

Hold [Set] down for 2 s to save previously set values and leave the menu.

- Instrument returns to the display.

Display	Function	Setting
DD.MM.YYYY flashes or MM.DD.YYYY flashes	Set date format	DD.MM.YYYY = day, month, yearMM.DD.YYYY = month, day, year
Year flashes	Set year	2009 - 2099
Month flashes Set month	01 - 12
Day flashes	Set day	01 - 31
24H or 12H (AM/PM) flash	Set time format 24h/12h
Hour flashes	Set hour value	00 - 23 or 01 - 12
Minute flashes	Set minute value	00 - 59
Second flashes	Set second value	00 - 59
°C flashes	Set unit for temperature	°C/°F

6.2. Setting the limits

Temperature

When changing the temperature unit from ^ C to ^ F, the set limit values are converted

Humidity

When changing the humidity unit (%, td, wb), the set limit values are not converted. The limit values must be reset via the Setup menu.

Pressure

It is not possible to set the limit values.

6.3. Performing settings

1. Press and hold [Set] for 2 s.

   Display flashes.

2. Select the required function with [Set].

   The adjustable parameter flashes.
   3 Set values with [▲] or [▼] and confirm entry with [Set] (for settings, see following table).

3. Instrument changes to the next display function

i

To scroll rapidly forward and back in the relevant menu, press and hold [▲ or ▼].

Press [Esc] to cancel settings without saving them.

Hold [Set] down for 2 s to save previously set values and leave the menu.

If the entire Setup menu is run through, the settings made are automatically stored.

If no key is pressed within 30 s, the screen reverts to the current reading display automatically. No settings are saved.

- Instrument changes to the next display function

6.4. Flowchart

graph TD
    A["Current reading display"] --> B["[Set"] 2 sec.]
    B --> C["Set limit value (temperature and humidity)"]
    C --> D["[Set"]]
    D --> E["Pressure settings (unit for altitude)"]
    E --> F["[Set"]]
    F --> G["Set calibration reminder function"]
    G --> H["[Set"]]
    H --> I["Set date/time"]
    I --> J["[Set"]]
    J --> K["Set temperature unit"]
    K --> L["[Set"]]
    L --> M["Current reading display"]

A detailed description of the points ①, ②, ③, ④, ⑤ can be found on the following pages.

No.	Display Function		Setting option/value
1	and °C/°F light up,ON or OFF flashes	Activate or deactivate display for upper temperature limit alarm	Deactivate:OFF Activate:ON
	Only ifONis selectedUpper limit value flashes	Set value for upper temperature limit alarm	-
	and °C/°Flight up,ONor OFF flashes	Activate or deactivate display for lower temperature limit alarm	Deactivate:OFF Activate:ON
	Only ifONis selectedLower limit value flashes	Set value for lower temperature limit alarm	-
	and % light up,ONor OFF flashes	Activate or deactivate display for upper humidity limit alarm	Deactivate:OFF Activate:ON
	Only ifONis selectedUpper limit value flashes	Set value for upper humidity limit alarm	-
	and % light up,ONor OFF flashes	Activate or deactivate display for lower humidity limit alarm	Deactivate:OFF Activate:ON
	Only ifONis selectedLower limit value flashes	Set value for lower humidity limit alarm	-
2	Pressure unit flashes	Select unit for pressure	mbar, hPa, kPa, inHg, inH2O, psi
	Altitude lights up, height unit flashes	Select unit for height above sea level	m, ft
	2 flashes	Set value for height above sea level	For unit in m:0 to 9000 mFor unit in ft:0 to 29,527 ft
3	Calibration!lights up,ON or OFFflashes	Activate or deactivate calibration reminder function	Deactivate: OFFActivate: ON
	Only if ON is selectedCalibration!lights up,Year flashes	Set year 2009 - 2099
	Only if ON is selectedCalibration!lights up,Month flashes	Set month 01 - 12
4	Update date & time? lights up,No flashes	Set date and time No change	Select YesSelect No
	Only if Yes is selectedDD.MM.YYYYflashesorMM.DD.YYYYflashes	Set date format	DD.MM.YYYY = day, month, yearMM.DD.YYYY = month, day, year
	Only if Yes is selectedYear flashes	Set year	2009 - 2099
	Only if Yes is selectedMonth flashes	Set month	01 - 12
	Only if Yes is selectedDay flashes	Set day	01 - 31
	Only if Yes is selected24H or 12H (AM/PM) flash	Set time format	24h/12h
	Only if Yes is selectedHour flashes	Set hour value	00 - 23 or 01 - 12
	Only if Yes is selectedMinute flashes	Set minute value	00 - 59
	Only if Yes is selectedSecond flashes	Set second value	00 - 59
5	°C flashes Set unit for temperature		°C/°F
i	If the power supply is interrupted the settings are being saved for at least 3 min.

6.5. Measuring

With max./min., the time that it occurred and the corresponding value (°C/% RH) is shown.

Displaying max. values

Press [Max].

To reset the max. value:

1. Select the max. temperature value or max. humidity value.
2. Press and hold [Max] for 2 s.
3. The max. temperature value or max. humidity value is reset.

If the [Max] key is not pressed for >30 s, the screen reverts to the current display automatically

Displaying min. values

Press [Min].

To reset the min. value:

1. Select the min. temperature value or min. humidity value.
2. Press and hold [Min] for 2 s.
3. The min. temperature value or min. humidity value is reset.

If the [Min] key is not pressed for >30 s, the screen reverts to the current display automatically

Displaying humidity values

To change the display between \% relative humidity, dewpoint and wet bulb:

Press [%RH].

If the limit values for \% relative humidity are activated, no limit values for dewpoint and wet bulb will be shown when the [% RH] key is pressed.

If the limit values for dewpoint or wet bulb are activated, no limit values for % relative humidity will be shown when the [% RH] key is pressed.

Displaying pressure values and set height above sea level

To change the display between absolute pressure, barometric pressure and set height above sea level:

Press [hPa].

Acknowledging an alarm

Alarm was triggered:

- LED flashes

- The alarm value that was exceeded or undershot flashes

To clear an alarm:

Press [Alarm].

- Alarm is cleared

With the alarm activated and a change to the setup menu, the current alarm is acknowledged.

7 Maintaining the product

Changing batteries/rechargeable batteries

CAUTION

Incorrectly inserted batteries / rechargeable batteries can damage the instrument!

Observe the polarity when inserting the batteries / rechargeable batteries.

1. Open the battery compartment on the rear of the instrument.
2. Remove spent batteries / rechargeable batteries from the battery compartment and insert new batteries / rechargeable batteries (type AA)
3. Instrument turns on automatically.
4. Close the battery compartment.

If the power supply is interrupted the settings are being saved for at least 3 min.

If the instrument is not used over a longer period, the batteries/rechargeable batteries should be removed from the instrument to prevent damage to the instrument and the batteries/rechargeable batteries.

Cleaning the instrument

If the housing of the instrument is dirty, clean it with a damp cloth.

Do not use any aggressive cleaning agents or solvents! Weak household cleaning agents or soap suds can be used.

Do not clean the instrument with compressed air, otherwise the sensor may be damaged.

8 Tips and assistance

8.1. Accessories and spare parts

Description Article no.
Calibration and adjustment software incl. USB cable	0554 6230
DKD humidity calibration certificate, electronic hygrometer; calibration points 11.3 % RH and 75.3 % RH at 25 °C	0520 0206
ISO humidity calibration certificate, calibration points 11.3 % RH and 75.3 % RH at 25 °C	0520 0006

8.2. Questions and answers

Question Possible causes
Instrument displays LO	Below -20 °C
Instrument displays HI	Above +70 °C

If we could not answer your question, please contact your dealer or Testo Customer Service. For contact details see the rear side of this document or the web page www.testo.com/service-contact

testo 622

Labeled diagram of a device rear panel with numbered parts and warning label

Labeled diagram of a device showing internal components and safety warning labels