Table des Matières
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Les langues disponibles
Indices
o
=
Reference value (z. B. 15 °C)
b
=
Operation
n
=
Standard state (1013 mbar, 0 °C)
s
=
Saturation state
tr
=
dry
t
=
Temperature
ref. =
Reference colunm
D
=
Steam
W
=
Water
Dr
=
Measured at the flow restrictor
r
=
Calculation value
f
=
Moist
W
=
Wobbe coefficient
Z
Legend
E
=
Input value (e.g. 64 bar)
A
=
Output value e.g. 1000 m³/h)
c
=
Weighting factor (sign + or –)
K
=
Constante (sign + or –)
p
=
Absolute pressure in bar (in formulas)
∆
p
=
Differential pressure linear or root extracted (mbar)
T
=
Temperature (K)
∆
T
=
Temperature difference (K)
ρ
=
Operating density (kg/m³)
ρ
=
Standard density (kg/m³) (0 °C, 1013 mbar)
n
Q
=
Mass flow rate (kg/h)
m
Q
=
Volume flow rate (m³/h) in standard state
n
Q
=
Volume flow rate (m³/h) in operting state
v
H
=
Lower caloric value (kJ/m³) in standard state
u
V
=
Volume percents (%) (P 113)
V
=
Volume (m³) (P 321)
W
=
Thermal or refrigerant power (kJ/h or W) e.g. heating power
h
=
High (P 311...P 313, P 321...323, P 521)
42/18-40 XL
TZA 4, Digital computer / Calculateur de mesure numérique
Foot notes
∆
1)
p = only linear
2)
A1, A2, AB1 assignment can be selected
3)
for pin c16 also c8; c20; c22
for pin d16 also d18; d20; d22
4)
When assigned p, then overpressure or
absolute pressure
5)
Terminal assignment acc. to specification of the
respective Data Sheet
6)
1st value = main signal (e.g.
2nd value = correction signal (e.g. P, T,
∆
7)
p transmitter with smaller range
cp
=
P
=
W
P
=
Q
α
=
α
=
ϕ
=
F
=
n
W
=
z
Z
=
U
=
I
=
ε
=
h
=
R
=
t
=
v
=
H
=
8)
only transmitter possible
9)
Can be implemented with this program
10) A1, A2, AB1, GW1 (counter)
can be selected
11) A1, A2, AB1, GW1, GW2 (counter)
can be selected
12) Output A = Q
can be selected: Q
∆
p)
13) Humidity sensor (linear):
ρ
)
Specific thermal coefficient (kJ/h
Electrical active power (W)
Electrical reactive power (Var)
Temperature coefficient of copper (P 711)
Flow rate coefficient (P 461; P 462, P 741, P 472)
relative humidity
absolute humidity
Wobbe coefficient
Real gasf factor
Voltage (V)
Current (A)
Expansion coefficient
Enthalpy (kJ/kg)
Ω
Electr. resistance (
)
Temperature (°C)
spec. Volume (m³/kg)
Distance between nozzles and the boiler
, Q
, Q
, Q
nf
mf
ntr
mtr
ϕ
τ
,
, F
, f
, F
, t
o
o
n
o
n
r
×
K)
45
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Table des Matières
