JUMO 702540 TDA-300 / TDA-3000 - Handheld thermometer Operating Manual - Manual (Page 66)

10 Appendix
66
10.3.2 Problems and solutions
10.4 Technical data
v See Data Sheet 702540
Problem Possible cause Solution
Instrument cannot be
switched on (no
display) No battery fitted or
battery is discharged or
voltage too low.
v Chapter 2.1 “Inserting
the battery”
v Chapter 10.1
“Replacing the battery”
Measured
temperature is
faulty Battery voltage too low.
v Chapter 10.1
“Replacing the battery”
Interference from
another device. - Remove the device that
causes the interference.
- Use the parameter
“digital filter”.
v See “D filter” on Page
50.
Wrong sensor is used. - Use the correct sensor.
Sensor connector not
inserted far enough. - Check the sensor
connection to
instrument.
Measured
temperature is not
identical with the
actual temperature Temperature correction
(PV bias) is used. - Switch off temperature
correction.
v See “PV Bias” on Page
49.
Display does not
respond, instrument
does not react to a
key stroke. CPU overrun - Remove the
battery, wait a
few seconds, then re-
insert it.
If the error does not
disappear,
contact the supplier.