Testo 435-3 - Multi-function climate measuring instrument

Testo 435-3 - Multi-function climate measuring instrument

Includes Pitot tube for differential pressure measurement for filter monitoring or for measurement
Further optional probes can be attached: thermal and vane anemometers, along with probes for air humidity, CO2, absolute pressure and temperature
Display of dew point distance, min., max. and mean values
Illuminated display

testo 435-3 – multi-function climate measuring instrument with integrated differential pressure measurement. You can use this to carry out measurements for adjusting ventilation and air conditioning systems and assess room air quality. For this we offer a comprehensive range of optional probes and sensors to choose from.

Product Description
The testo 435-3 version of testo 435 multi-function climate measuring instrument has an integrated differential pressure sensor with a 0… 25 hPa measuring range. Differential pressure measurement enables you to check filters in ventilation and air conditioning systems or to measure air velocity with a Pitot tube (optional).
Hence testo 435-3 multi-function climate measuring instrument with its optional probes ideally equips you for adjusting ventilation and air conditioning systems or assessing air quality.

Attachable probes (optional) for assessing air quality
- IAQ probe (Indoor Air Quality) for assessing air quality – measures CO2, air temperature, air humidity and absolute pressure
- Ambient CO probe for CO measurement in buildings and rooms
- Globe thermometer for measuring radiant heat
- Temperature probe for measuring air temperature, core temperature and surface temperature

Attachable probes (optional) for adjusting and testing ventilation and air conditioning systems
- Thermal anemometers for measuring air velocity and volumetric flow in ventilation ducts. If you also want to measure the temperature and air humidity in ducts, we recommend you use the thermal anemometer with integrated temperature and air humidity measurement
- Vane anemometer with a small diameter (Ø 16 mm) for measuring air velocity and volumetric flow in ventilation ducts
- Vane anemometer with a large diameter (Ø 100 mm) for measuring volumetric flow at the air outlet. Also for measurements at poppet valves and ventilation grilles in combination with the testo vent 417 funnels or for measurements at swirl outlets with the volume flow straightener
- Temperature probe for measuring air temperature, core temperature and surface temperature
- Absolute pressure probe
The service cases which are also available offer you space for the climate measuring instrument and your whole range of probes.

The testo 435-4 version offers even more possibilities for adjusting and testing air conditioning systems and measuring air quality. Further probes, such as lux probes or probes for turbulence level measurement, can be attached to this measuring instrument.

Complex technology, but really easy handling
The testo 435-3 multi-function climate measuring instrument is characterized by an efficient measuring process which makes any inconvenient programming of the measuring instrument superfluous:

probe-dependent menus and selectable user profiles for the typical applications of “duct measurement” and “IAQ measurement” ensure the easiest imaginable handling.

It also offers legibility on the large display with an illumination function which also displays dew point distance, min., max. and mean values. A solid housing provides reliable protection against impacts for the testo 435-3 multi-function climate measuring instrument.

Documentation of measurement data on site
The testo fast printer, which is available as an option, means you can create a report printout of measurement data directly on site. For a duct measurement, you can for instance print out the current readings or the min./max. values for air velocity, volumetric flow, temperature and air humidity. You can use the printout as evidence of your work.

Use the practical cyclical printing function on the testo 435-3 as well. It not only enables the printout of individual readings, but also of whole series of measurements on the testo fast printer at freely adjustable intervals (for example once a minute).

We recommend you use the testo 435-4 version for saving, documenting and archiving measurement data. It is equipped with a reading memory and PC software.

Delivery Scope
Testo 435-3 multi-function climate measuring instrument with integrated differential pressure measurement, calibration protocol and batteries.

Technical Data

Temperature - NTC
Measuring range :-50 to +150 °C
Accuracy :±0.2 °C (-25 to +74.9 °C)
±0.4 °C (-50 to -25.1 °C)
±0.4 °C (+75 to +99.9 °C)
±0.5 % of mv (Remaining Range)
Resolution :0.1 °C

Temperature - TC Type K (NiCr-Ni)
Measuring range :200 to +1370 °C
Accuracy :±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range)
Resolution :0.1 °C

Temperature - TC Type T (Cu-CuNi)
Measuring range :-200 to +400 °C
Accuracy :±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range)
Resolution :0.1 °C

Humidity - Capacitive Measuring range :0 to +100 %RH
Accuracy :See probe data
Resolution :0.1 %RH

Absolute Pressure Measuring range :0 to 2000 hPa
Accuracy :See probe data
Resolution :0.1 hPa

Velocity - Vane
Measuring range :0 to 60 m/s
Accuracy :See probe data
Resolution :0.01 m/s (Ø 60 mm vane + Ø 100 mm vane)
0.1 m/s (Ø 16 mm vane)

Velocity - Hot wire
Measuring range :0 to 20 m/s
Accuracy :See probe data
Resolution :0.01 m/s

Differential pressure (internal sensor) - Piezoresistive
Measuring range :0 to +25 hPa
Accuracy :±0.02 hPa (0 to +2 hPa)
±1 % of mv (Remaining Range)
Resolution :0.01 hPa
Overload :200 hPa

General technical data
Dimensions :220 x 74 x 46 mm
Operating temperature :-20 to +50 °C
Housing :ABS / TPE / Metal
Protection class :IP54
Battery type :Alkali manganese, mignon, type AA
Battery life :200 h (typical vane measurement)
Display ligthing :Yes
Storage temperature :-30 to +70 °C
Weight :428 g

Testo 435-3 - Multi-function climate measuring instrument process sensors Range of products are mostly available in ready stock and it can delivered immediately throughout india

Apart from supplying Testo products in India through dealers network, catering to a variety of customers ranging from Electrical Contractors, Engineering Industries, Railways, Defence Installations, Research Laboratories, Educational Institutes and various Research and Development laboratories of leading national and multinational companies.

We DFT TECH, are Testo Authorized Distributors, Importers, Stockists, Dealers and Suppliers of Konica Minolta Products in Chennai, Ambala, Kerala, Tiruppur, Rajkot, Bangalore, Gujarat, Kochi, Patna, Jaipur, Gangtok, Mysore, Kanpur, Hyderabad, Vadodara, Gobichettipalayam, Pondicherry, Perambalur and etc..