10. Measuring operations
22
Transducers
Sensor / con-
nector
Measuring range
Units Abbre-
viation
Enthalpy, psychrometric with PC
FN A846
0.0 ... 400.0
kJ
P En
Conductivity probe, with TC
FY A641-LF
0.0 ... 20.000
mS
LF
CO
2
sensor
FY A600-CO2
0.0 ... 2.500
%
CO2
O
2
saturation with TC and PC
FY A640-O2
0 ... 260
%
O2-S
O
2
concentration with TC
FY A640-O2
0 ... 40.0
mg
O2-C
Function channels:
Differential channels Mb1 - Mb2
any
diFF
Maximum value of channel Mb1
any
Hi
Minimum value of channel Mb1
any
Lo
Av. val. M(t) over time of Mb1
any
A[t]
Av. value M(n) of Mb2 to Mb1
any
A[n]
Sum S(n) of Mb2 to Mb1
any
S[n]
Total pulses S(t) of Mb1
ZA 9909-AK2
0... 65000
S[t]
Pulses / print cycle of Mb1
ZA 9909-AK2
0... 65000
S[P]
Alarm value of channel Mb1
any
Alrn
Wet bulb globe temperature
ZA 9030-FS
°C
UbGt
Measured value of Mb1
any
MESS
Cold junction temperature
any
°C
CJ
Number of av. values of Mb1
any
n(t)
Volume flow m
3
/h
M
̅
(Mb1)*Q
any
mh
FLou
Timer
any
s
tinE
TC = Temperature compensation PC = Air pressure compensation
10.1.3
Double display
On all double sensors incorporating a temper-
ature sensor on the 1st channel the tempera-
ture value can at the same time be displayed
in the function field.
Select 2nd channel
Activate temperature display
Press and hold down
M
▲
Return to channel display
Press and hold down
M
▲
10.2
Peak value memory
From the measured values acquired for each
measuring point the highest and the lowest val-
ues are continuously recorded. To display
these high / low peak values first the desired
channel must be set (see Section 7.1) 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 key :
MAX
.
To display the minimum value press key :
MIN
.
