Page 1
Technical Data
Infrared measurement
General
Contact measurement
Measuring range ................................................-50 °C...+300 °C; -58 °F...+572 °F
Resolution ..........................................................................................0.5 °C, 0.9 °F
Accuracy
(±1 digit)
................±1.5 °C (-20...100°C);
±2 °C or 2% of m.v. (remaining range)
1
........................................................
±2.7 °F (-4...212°F);
±3.5 °F or 2% of m.v. (remaining range)
1
Emission factor ......................................................................................0.95...1.00
Wavelength................................................................................................8..14 µm
Opening ratio....................................................................................................6:1
2
Storage temperature ............................................-40 °C...+70 °C; -40 °F...+158 °F
Including optical alarm
testo 826-T1/T3
Operating temperature............................................0 °C...+50 °C; +32 °F...+120 °F
testo 826-T1/-T3
Battery type ....................................................................................2 x lithium 2032
Battery life ......................................................................................................100 h
testo 826-T2/T4
Operating temperature ..........................................-20 °C...+50 °C; -4 °F...+120 °F
testo 826-T2/-T4
Battery type ..............................................................................2 x AAA round cells
Battery life ........................................................15 h - Continuous operation - laser
Including audible alarm
Warranty....................................................................................................../2 years
testo 826-T3/-T4
Measuring range ................................................-50 °C...+230 °C; -58 °F...+446 °F
Resolution ..........................................................................................0.1 °C; 0.1 °F
Accuracy
(±1 digit)
..............................................................±0.5°C (-30 to +99,9 °C)
..................................................................
± 1°C or ± 1% of m.v.(remaining range)
1
..........................................................................................±0.9 °F (-22 to +212 °F)
..............................................................
± 1.8 °F or ± 1% of m.v.(remaining range)
1
1
the larger value applies
2
+ Opening diameter of sensor (12mm)
Accessories
Changing the battery
TopSafe
testo 826 T1/T3
testo 826 T2/T4
Wall holder
protective cap
Frozen food pre-borer
IP 67
0516.8265 0554.0825 0554.0826
testo 826 T3/T4
testo 826 T3/T4
Note:
The IP 67 protection class is guaranteed only inside the closed TopSafe.If the
instrument is kept immersed for a longer period of time, apply grease to inside
openings of TopSafe (see arrows).
Battery needs to be changed.
Observe correct polarisation of batteries/rechargeable batteries.
The measuring instrument conforms with EN 50081-1 + EN 50 082-1; 1992. The instruments were tested in the
27-1000 MHz frequency range. The parameters specified cannot be guaranteed in high frequency ranges.
testo 826-T1, T3
testo 826-T2, T4
Instruction manual en
On switch,
Hold
reading
Battery compartment
Off switch
Temp. display
Infrared measurement
Infrared sensor
IR-Sensor
Display
Display
On switch,
Hold reading
Battery compartment
Penetration probe
Temp. display
Penetration probe,
Off switch
Temp. display
Infrared measurement
To be observed when measuring the penetration temperature:
- Minimum penetration depth >10 mm to achieve accurate values.
- Use the pre-borer supplied when measuring the core temperature in frozen food
(testo 826 T3/T4). Then place the measuring tip in the object to be measured.
- Risk of injury from measuring tip (testo 826 T3/T4).
- Maximum ambient and operating temperature (e.g. protect instrument from sunlight)
To be observed during infrared measurement:
- The instrument needs an adaptation time of 15 minutes for infrared measurement if the
ambient temperature changes (change of location, e.g. measurement inside/outside).
- In the case of shrinkwrapped foodstuffs, do not measure in air pockets.
- If there is dirt, dust, frost etc. on the surface, only the top layer will be measured, i.e. the
dirt.
- Keep infrared lens clean - do not measure with a clouded lens.
Avoid:
- Use in corrosive acids or alkalines.
- Measurements on live parts (testo 826 T3/T4).
- Heat on the heat sensor.
- Dirt on the lense.
Cleaning the lense:
- Clean with cotton buds (made moist with water) or with compressed air.
With TopSafe testo 826 - T 3 / T 4 complies with guidelines in accordance with the
EN 13485 standard.
Suitability: S, T (storage, transport)
Environment: E (transportable thermometer)
Accuracy class: 0.5
Measurement range: -50 to +230 °C
According to EN 13485, the measuring instruments should be checked and calibrated
regularly under the terms of EN 13486 (Recommended: Yearly).Contact us for more
information.
Measurement spot, distance
A specific spot is measured depending on the distance of the instrument from the
object being measured.
The warranty is invalid if instruments are inexpertly handled.
Instructions
Operation
Infrared measurement
Contact measurement - testo 826-T3/T4
Segment test
Measuring with
infrared sensor
Measuring with
infrared sensor
Keep pressed
loslassen
Release
Measuring with
temp. sensor
Switching off instrument
Keep pressed
Switch on instrument
Switch on instrument
Switch on instrument
Switch on instrument
3s
Segment test
3s
3s
3s
und
and
Segment test
Segment test
Measuring with
infrared sensor
Measuring with
infrared sensor
Measuring with
infrared sensor
Press
simultaneously
3s
and
Measuring
Freeze reading
The instrument is switched off automatically if no button has been activated.
-
tteessttoo 882266-TT11//TT22
60s
-
tteessttoo 882266-TT33//TT44
10 min
or
Determining emissivity
Keep pressed
simultaneously
Increase value
Lower value
Emissivity *
* Measurements: ε=0.95 Calibration ε=1.00 (with black emitter)
3s
3s
Settings
Increase value
C/°F
Alarm setting
Set limit value
Decrease value
Select overshoot
3s
Select undershoot
3s
°C/°F
Measurement spot diameter in mm
Measurement distance in mm
ø12
ø28
100
200
500
ø45
ø95
LLaasseerr rraaddiiaattiioonn!!
Do not look into laser beam. Laser class 2.
Not suitable for diagnostic measurements in the medical sector!
The following components of the product are designed for continuous
contact with foodstuffs in accordance with the regulation (EC) 1935/2004:
The measurement probe up to 1 cm before the probe handle or the plastic
housing. If provided, the information about penetration depths in the
instruction manual or the mark(s) on the measurement probes should be
noted.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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