Operation; Switching The Display During Operation; Saving The Momentary Value - testo 54 Serie Manual De Instrucciones

6.

Operation

6.1

Switching the display during operation

press the right-hand/grey key to select among the follo-
wing functions:
–current measured value
–maximum value
–minimum value.
Press the key once to display the designation of the
active display function for 2 seconds. If, during this
time, the right-hand grey key is pressed a second
1. Current measured value, press once the
right-hand/grey key
for 2 s:
⇑
after 2 s
2. Minimum value (when active), press once the
right-hand/grey key
for 2 s:
⇑
after 2 s
6.2

Saving the momentary value

(Display-Latch)
In case of a High Signal at the Latch input, the current
measured value is frozen on the display. The minimum
7 Troubleshooting and alarm messages
7.1 Display does not light up
If the display does not light up, check the supply vol-
tage or the power supply cables. Do not open the hou-
sing by force.
7.2 Measuring rang overflow or underflow
18
Measuring range overflow
Ranges see 8.1
Measuring range underflow
Ranges see 8.1
time, the display switches to the following display func-
tion. This is confirmed by a 2-second display of the
designation of the new function. After these 2 seconds,
the display shows, depending on the selection, the
maximum value, the minimum value or the current
measured value.
3. Maximum value (when active), press once the
right-hand/grey key
for 2 s:
⇑
after 2 s
4. Current measured value, press once the
right-hand/grey key
for 2 s:
⇑
after 2 s
and maximum value acquisition continues operating in
the background.
7.3 Input problems
Probe broken or input
signal exceeds the
allowable range