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Double Display for Temperature and Humidity
If a double sensor for temperature and humidity is connected to socket M0 the
display can be switched to display both variables. To achieve this, the channel
M2 for humidity must be selected and key M/
HOLD
must be pressed longer
than one second. The same keys are also used to undo the function again.
Select humidity channel:
M
▲
2:
3
4
.
5
%
H
Double display with key:
M/HOLD
1s
2
3
.
4
°C
3
4
.
5
%
The double display will be maintained when returning to channel 2 and also
when other channels or function parameters are selected in standard format.
Special Operating Conditions
Segment test of the display automatically after switch-on.
Supply voltage: lower than 7 V:
symbol is illuminated
BAT
lower than 6 V:
1:L o b A t
Sensor that are not connected,
deactivated measuring points,
cleared programming values.
Sensor correction or scaling
arrow
CORR
illuminated
Measuring point scan in progress arrow
START
illuminated
Averaging in progress
arrow illuminated
M
Data memory active
arrow
MEM
illuminated
Measuring point scan with output
arrow
COM
illuminated
Function selected
arrow
F
illuminated
Alarm Conditions
are displayed as follows and cause an alarm (see man. 6.3.9):
Sensor breakage:
abbr. flashes
1: N i C r
°C
Exceeding of limit value:
arrow
ALARM
is illuminated
Overshooting of measuring range:
maximum value flashes
Undershooting of measuring range:
minimum value flashes
Undershoot. of meas. range CJ compens.
(cold junction)
Meas. without ext. CJC or CJC breakage:
flashes
Exceeding of range of values (>65000):
flashes
1:6 5 0 0 0
1:
- - - -
X
X
1: C J
ALMEMO
2290-4
17
Display and Keypad
Содержание ALMEMO 2290-4 V5
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