OPERATING INSTRUCTIONS
METEODIGIT IV (9164)
8
10. MEASURING OPERATIONS
With METEODIGIT IV all available measuring channels
are scanned by default semi-continuously; this permits
continuous differential measurements. Depending on
sensor up to 4 measuring channels can be displayed.
10.1 Measuring value
After switching ON first of all a
segment test is performed; the
battery voltage appears and if
the batteries are almost empty
(<3.6V) the LOBAT arrow
also appears.
The measured value is then
displayed with the appropriate
units in the main field and the
measuring point is displayed in
the function field. All special
operating states possible for
the measured value are
explained in section 8.4.
10.1.1 Selecting a measuring point
By pressing key
M
▲
you can select one after the
other all active measuring points and have the current
measured value displayed for each. By pressing key
M
▼
you can return to previous channel.
To increment the measuring channel press key:
M
▲
To decrement the measuring channel press:
M
▼
When switching between channels the abbreviation for
the measuring range is briefly displayed.
10.1.2 Measuring ranges
With each channel switchover or sensor breakage the
abbreviation for the measuring range appears in the
display. For identification purposes the following table
lists all possible measuring ranges.
Sensors Dim
Abbr
Millivolt
mV
U 55
Millivolt 1
mV
U 26
Millivolt 2
mV
U260
Volt
V
U2
.
60
Difference millivolt
mV
d 55
Difference millivolt 1
mV
d 26
Difference millivolt 2
mV
d260
Difference volt
V
d2
.
60
Sensor voltage
V
UbAt
Frequency
Hz
FrEq
Function channels:
Maximum value of channel Mb1
Hi
Minimum value of channel Mb1
Lo
Measured value of Mb1
MESS
Cold junction temperature
°C
CJ
10.1.3 Double display
On all double sensors in-
corporating a temperature sen-
sor on the 1st channel the
temperature value can be
displayed in the function field
at the same time.
Select 2nd channel:
Activate temperature display:
M
▲
Press and hold down.
Return to channel display:
M
▲
Press and hold down.
10.2 Peak value memory
From the measured values
acquired for each measuring
point the highest and the lowest
values are continuously re-
corded. To display these high/
low peak values first the de-
sired channel must be set and
then the
MAX
or
MIN
key
must be pressed. As a check the display also includes
the associated symbol.
To display the maximum value press:
MAX
To display the minimum value press:
MIN
To delete the maximum value press and hold down:
MAX
To delete the minimum value press and hold down:
MIN
To return to the measuring point display press key:
M
▲
As soon as you clear the memory, the current measured
value will appear (because measuring is continuous).
10.3 Measured value memory
METEODIGIT IV can save 99 measured values in
memory locations P01 to P99. The measured data can
be shown on the display.
To save each such measured value press key
MEM
The function field will show
the memory location for about
1 second e.g.: P02
The value most recently
saved then appears in the
function field preceded by the
symbol ´M´.
To return to the channel display press:
M
▲
