45
10 Supplement
WIKA Operating Instructions - Process pressure transmitter IPT-1*
Nominal range
Overload capacity, max.
pressure
Overload capacity, min. pres-
sure
-1 … +217.6 psig
+1160 psig
-14.50 psig
-1.450 … +4.351 psig
+29.01 psig
-14.50 psig
-2.901 … +2.901 psig
+29.01 psig
-14.50 psig
Absolute pressure
0 … 5.802 psi
29.01 psi
0 psi
0 … 23.21 psi
145.0 psi
0 psi
0 … 87.02 psi
507.6 psi
0 psi
0 … 232.0 psi
1160 psi
0 psi
Reference conditions and influencing variables (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Ʋ
Temperature
+18 … +30 °C (+64 … +86 °F)
Ʋ
Relative humidity
45 … 75 %
Ʋ
Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psi)
Determination of characteristics
Limit point adjustment according to IEC 61298-2
Characterstic curve
Linear
Reference installation position
upright, diaphragm points downward
Influence of the installation position
depending on the chemical seal version
Deviation determined according to the limit point method according to IEC 60770
12)
Applies to
digital
interfaces (HART, Profibus PA, Foundation Fieldbus) as well as to
analogue
current output 4 … 20 mA. Specifications refer to the set span. Turn down (TD) is the ratio nominal
measuring range/set span.
Deviation for measuring ranges 0.4 … 1000 bar
Ʋ
Turn down 1 : 1 up to 5 : 1
< 0.1 %
Ʋ
Turn down > 5 : 1
< 0.02 % x TD
Deviation for measuring ranges > 1000 bar
Ʋ
Turn down 1 : 1 up to 2 : 1
< 0.6 %
Deviation with absolute pressure measuring range 0.1 bar
Ʋ
Turn down 1 : 1 up to 5 : 1
< 0.25 %
Ʋ
Turn down > 5 : 1
< 0.05 % x TD
Influence of the medium or ambient temperature
Thermal change zero signal and output span
Applies to the
digital
signal output (HART, Profibus PA, Foundation Fieldbus) as well as to the
ana-
logue
current output 4 … 20 mA and refers to the set span. Turn down (TD) is the ratio "nominal
measuring range/set span".
12)
Incl. non-linearity, hysteresis and non-repeatability.