testo 935 Bedienungsanleitung Seite 2

testo 935
Hold/MAX/MIN key
PRINT key
Screw-down
battery
compartment
Please r r ead b b efore
using i i nstrument
Do not measure on live parts.
Observe the sensor measuring ranges.
Overheating will destroy the probes.
Observe admissible storage, transport and operating
temperatures (e.g. protect measuring instrument from
direct sunlight).
Avoid applications in corrosive acids or bases.
All warranty claims will be cancelled if the instrument is
improperly handled.
Instructions for use
Insert p p robe. E E nsure t t hat t t he c c orrect
thermocouple t t ype ( ( K, J J o o r T T ) i i s i i nserted. O O nly
thermocouples o o f t t he s s ame t t ype s s hould b b e
connected d d uring a a m m easurement.
Observe p p olarisation.
Do n n ot p p ull o o n l l ead w w hen r r emoving p p robe o o r
Type
thermocouple.
Switch o o n i i nstrument
Once switched on a short display and function
test follows. The measuring instrument is then
ready to operate.
Should the ambient temperature change (e.g. place of
measurement is altered - indoor/outdoor measurement),
the thermometer requires adaption time of up to several
minutes.
Instruction manual
2 probe connections
2 line display
Measuring instruments conform with
EN 50 081-1 + EN 50 082-1
ON/OFF key
T2/ ∆T
Technical d d ata f f or t t esto 9 9 35
Parameters: °C
key
Measuring r r ange:
Type K: -50 to +1000 °C
Type J: -50 to + 750 °C
Type T: -50 to + 350 °C
Accuracy:
±1 digit
Type K: ± 0,7 °C ±0.5% of m.v.
(-40 to 900 °C)
± 1 °C ±1% of m.v. (remainder)
Type J: ± 0,7 °C ±0.5% of m.v.
Type T: ± 0.6 °C (-20 to +70 °C)
± 1 °C ±0.5% of m.v. (remainder)
Resolution:
0.1 °C (up to +199.9 °C)
1 °C (from +200 °C)
Ambient
temperature:
0 to +50 °C
Storage/transport
temperature
-20 to +70 °C
Display:
2 line LCD
Housing:
ABS
Battery l l ifetime:
> 150 h (alkali manganese)
Dimensions:
190 x 57 x 42 mm
Weight:
Approx. 300 g incl. battery
Auto O O ff f f unction
If the Auto Off function is activated
the instrument switches off automatically after
10 minutes (except if HOLD is pressed).
Changing the battery
Once "Bat" appears in the display the
remaining lifetime is approx.10 hours.
The instrument switches off
automatically if the battery voltage is
too low. Unscrew the back of the instrument.
Remove the used up battery and insert the new
,
battery type 9V (IEC 6 F 22) (observe
polarisation).
W W a a r r r r a a n n t t y y
testo 9 9 35 m m easuring i i nstrument ....2 years
Probes ..............................................1 year
Changing t t he s s etting - C C onfiguration
When switching on the instrument keep the "HOLD" key pressed for approx. 20 s until Auto O O n/OFF
appears in the display.
Thermometer
The f f ollowing s s ettings c c an b b e c c hanged:
ok
°C
Auto ON
°F
OFF
Selecting t t he v v alues s s hown i i n t t he d d isplay
key you can determine which value (T2 or ∆T) is to be shown on the second line of the
Via the
display.
∆T is the difference between T1 and T2 (∆T = T1 - T2)
Memory f f unction f f or c c urrent, m m aximum a a nd m m inimum v v alues
You can switch between the following displays by pressing the
1st p p ress*: Freezes measured values in display (T1 and T2 or T1 and ∆T)
Displays the saved maximum values (T1 and T2 or T1 and ∆T)
2nd p p ress*:
T1 max. and T2 max. during the whole measurement (independent of time)
∆T max. is the maximum difference in temperature between T1 and T2 at the same time.
Note: ∆T is negative if T1 < T2.
3rd p p ress*:
Displays the saved minimum values.
T1 min. and T2 min. during the whole measurement (independent of time)
∆T min. is the minimum difference in temperature between T1 and T2 at the same time.
Note: ∆T is negative if T1 < T2.
4th p p ress*:
Return to operating mode
* If the Hold/Max/Min mode is activated, you can switch between the display modes available by pressing
the T2/∆T key.
All of the measured values can be printed out with date and time using the
If measured values are frozen in the display at a certain time via the
frozen at that time are printed out with date and time.
ok
ok
ok
Time
Date
01:01
00:00
1997
Select
position
01:01
Next
Next
00:00
1997 position
position
Set
position
01:12
00:50 1997
Thermo- ok
couple
Measuring
type
mode
K
J
Select
T
key again and again.
key.
key, the measured values