1. Correctcalibrationandadjustment.
Important tips on the calibration and adjustment of the testo 270
Preparation
!
°C
Use only the original Testo The sensor must be completely Before calibration / adjustment,
reference oil! clean. warm the reference oil to
approximately 50 °C in hot
water.
Calibration
1. 2. 3. 4.
1. Immediately after switching on, during the display Remove reference oil Immerse sensor in Begin adjustment pro- As soon as LEDs light
test, press and hold [ /Hold] and [▲] for approx. 3 from hot water. reference oil, LEDs cedure with [ /Hold]. up in green, measure-
sec. The oil may not light up in orange. • LEDs light up in red. ment is ended.
2. °C or F appears in display. come into contact Compare value with
• Move sensor in oil.
with the water! label value from refe-
3. Switch through the menu with [ /Hold], until CAL
and on or OFF appear. rence oil bottle:
Select with [▲] or [▼] on. Deviation 1%
4. Confirm with[ /Hold]. • Adjustment necessary
OIL and CAL appear in display. Deviation /= 1%
• Finish calibration
without adjustment
Adjustment Finishing calibration without adjustment/
Adjustment after calibration Exit calibration menu
• Set to the TPM value on the reference oil bottle
with [▲] or [▼]
• Confirm with [ /Hold].
• Keep [ /Hold] pressed to leave
• rSt and on or OFF appear. configuration mode.
• With [▲] or [▼], select OFF. • Afterwards you get back to the
• Confirm with [ /Hold]. measurement mode.
• The set value is taken over, instrument swit- • You can now take further measurements
ches to measurement mode. or switch off the instrument.
You can download this training card from www.testo.com/trainingcard-calibration-oil-tester
More information on testo 270 at www.testo.com/oil-tester