Error messages on the display – HT instruments iDM70 User Manual

Page 22

iDM70

EN - 21

7. ERROR MESSAGES ON THE DISPLAY

Code

Description

Solution

204 Calculation

error

Press

and repeat

procedure

208

Weak signal reflection,
measuring time too
long, distance > 70m or
<5cm

Carry out measurement
on an appropriate
surface

209

Too intense reflection of
the signal

Carry out measurement
on a less reflective
surface

252

Temperature too high

Let the instrument cool
down

253

Temperature too low

Let the instrument heat
up

255 Hardware

error

Turn off the instrument
and turn it on again
several times. Contact
Customer Service if the
message is displayed
again.