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10 Supplement
WIKA Operating Instructions - Process pressure transmitter IPT-1*
10 Supplement
10.1 Technical data
General data
Pressure type
Gauge pressure or gauge pressure
Measuring principle
Ʋ Measuring ranges ≤ 16 bar
piezoresistive with internal transmission liquid
Ʋ
Measuring ranges > 16 bar
Strain gauge (DMS) dry
Service interface
I²C-Bus
Materials and weights
316L corresponds to 1.4404 or 1.4435, 316Ti corresponds to 1.4571
Materials, wetted parts
Ʋ Process fitting
316Ti, Alloy C4 (2.4610), Alloy C276 (2.4819)
Ʋ
Diaphragm
316Ti, Alloy C4 (2.4610), Alloy C276 (2.4819), Elgiloy
Ʋ
Diaphragm from measuring range
25 bar, with not flush version
Elgiloy 2.4711
Ʋ
Seal ring, O-ring
FKM (VP2/A), EPDM (A+P 75.5/KW75F), NBR (COG)
Properties of metallic hygienic fittings
Ʋ
Surface quality, typ.
R
a
< 0.8 µm
Materials, non-wetted parts
Ʋ
Internal transmission liquid
Synthetic oil, Halocarbon oil
9)10)
Ʋ
Housing
Plastic PBT, Alu die-casting powder-coated, 316L
Ʋ
Seal between housing and housing
cover
NBR (stainless steel housing), silicone (Aluminium
housing)
Ʋ
Inspection window in housing cover
for display and adjustment module
Polycarbonate (UL-746-C listed)
Ʋ
Ground terminal
316Ti/316L
Ohmic contact
Between ground terminal and process fitting
Weight approx.
1.2 kg (2.646 lbs)
Output variable
Output signal
4 … 20 mA/HART
HART output values according to HART standard 5.0
Ʋ
Primary Value
Pressure
Ʋ
Secondary Value
Temperature
11)
Signal resolution
1.6 µA
Failure signal current output (adjustable) mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA
9)
Synthetic oil for measuring ranges up to 16 bar, FDA listed for the food processing industry. For measuring
ranges up to 25 bar dry measuring cell.
10)
Halocarbon oil: Generally in oxygen applications, not with vacuum measuring ranges, not with absolute meas-
uring ranges < 1 bar
abs
.
11)
Depending on the respective instrument and the process fitting, the temperature can deviate from the real
process temperature.