testo 835-H1 Infrared Thermometer Instructions

: June 6, 2024
: testo

Table of Contents

testo 835-H1 Infrared Thermometer
INSTRUCTIONS
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

testo 835-H1 Infrared Thermometer

INSTRUCTIONS

Element Function

– Starts / ends a measurement.

5| Battery compartment| Contains 3x AA batteries.
6| USB interface / probe connection socket| – For connecting the instrument to the PC to connect to the EasyClimate software.

– Connection of a probe.

7| | – Joystick for confirming a selection.

– For navigating in the menu

– Hold: displays the measured values.

13| Time| Displays the current time.
14| Reading display| Displays the measured readings.

Max

[°C/°F]

Min

| Surface temperature (IR) Max. IR temperature

IR temperature

Min. IR temperature

[°C/°F]

| Differential (surface temperature – external probe temperature)

TC temperature IR temperature

Temperature difference TC / IR measurement

TC probe must be connected.

[%RH] [°C/°F]

[°Ctd/°Ftd])

| Humidity measurement (environment + dewpoint + IR) (only H1)

Ambient humidity IR temperature

Ambient dewpoint temperature

Element	Function

[%RH] [°C/°F]

[°Ctd/°Ftd])

| Humidity measurement (environment and dewpoint) – ambient temperature (only H1)

Ambient humidity Ambient temperature

Ambient dewpoint temperature.

|

Max

[°CDtd/°FDtd]

Min

| Dewpoint distance measurement (only H1)
Temperature difference IR minus dewpoint max
current
min.
|

Max

aw[-] Min

| Surface moisture measurement (only H1) Surface moisture max.

current

min.

| Calculated from dewpoint, ambient air and surface temperature
| – 0.00 – 0.64: non-critical

– 0.65 – 0.80: poss. critical

– 0.81 – 1.00: critical

Connecting the thermocouple probe

Connect the connecting plug to the probe socket (6).

Switching the instrument on

Press (9).
OR
Press Trigger (4).

Switching the instrument off

Hold down (9) until the display goes off.
If no button is pressed for 2 minutes, the instrument switches off automatically.

Carrying out the measurement

Hold down Trigger (4).
Release Trigger (4) to end the measurement.
Move (7) up / down to change the reading display

Making settings

Press (7) to open the menu.
Move and press (7) to select the menu item.
Moving and pressing (7) applies the settings.

Setting the emissivity

Materials have various emissivities, i.e. they emit various amounts of electromagnetic radiation. The emissivity of the instrument has a default setting of 0.95. This is ideal for the measurement of non-metals (paper, ceramic, gypsum, wood, paints and varnishes), plastics and foodstuffs.

Press (11).
For Customise manual and Customise auto, move (7) right to enter the emissivity.
For Customise auto, please refer to the instruction manual.
Press (7) to confirm the selected emissivity.

Creating a storage location and saving readings

Press (10) to open the memory function.
Select New Location.
Move (7) up / down or right / left to name the storage location.
Confirm storage with .

Measuring lens

(Ratio of distance: measuring range)
Depending on the distance of the measuring instrument from the measurement object, a specific measuring range is recorded.
In italics = laser
Not in italics = measuring range

Managing the measurement data and other measurement options

Please download the free testo EasyClimate software for managing and archiving your measurement data and for carrying out an online measurement.
You will find the link to download it here: www.testo.com/download- center

These brief instructions describe the basic operating steps. Please refer to the instruction manual to find out how to handle the product safely and for detailed information.