66
10 Supplement
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Revisions Data
DD-Revision
Rev_01
CFF-File
020101.cff
Device Revision
0101.ff0, 0101.ff5
Cff-Revision
xx xx 01
Device software revision
> 1.1.0
ITK (Interoperability Test Kit) Number
6.2.0
Electricial Characteristics
Physicial Layer Type
Low-power signaling, bus-pow-
ered, FISCO I.S.
Input Impedance
> 3000 Ohms between
7.8 KHz - 39 KHz
Unbalanced Capacitance
< 250 pF to ground from either
input terminal
Output Amplitude
0.8 V P-P
Electrical Connection
2 Wire
Polarity Insensitive
Yes
Max. Current Load
11 mA
Device minimum operating voltage
9 V
Transmitter Function Blocks
Resource Block (RB)
1
Transducer Block (TB)
1
Standard Block (AI)
3
Execution Time
30 mS
Advanced Function Blocks
Discret Input (DI)
Yes
PID Control
Yes
Output Splitter (OS)
Yes
Signal Characterizer (SC)
Yes
Integrator
Yes
Input Selector (IS)
Yes
Arithmetic (AR)
Yes
Diagnostics
Standard
Yes
Advanced
Yes
Performance
No
Function Blocks Instantiable
No
General Information
LAS (Link Active Scheduler)
Yes
Master Capable
Yes
Number of VCRs (Virtual Communication Re-
lationships)
47
10.3 Calculation of the total deviation
The total deviation of a pressure transmitter indicates the maximum measurement error to be ex-
pected in practice. It is also called maximum practical deviation or operational error.