Endress+Hauser Deltabar FMD72 - Page 116

Technical data Deltabar FMD71, FMD72
116 Endress+Hauser
15.2.5 Dead time, Time constant
Presentation of the dead time and the time constant:
I
63 %
100 %
t
t
1
t
2
90 %
t
3
A0019786
15.2.6 Dynamic behavior, current output
Dead time (t
1
) [ms] Time constant (T63), t
2
Time constant (T90), t
3
max. 120 120 280
15.2.7 Dynamic behavior, HART
Dead time (t
1
) [ms] Dead time (t
1
) [ms] +
Time constant T63 (= t
2
) [ms]
Dead time (t
1
) [ms] +
Time constant T90 (= t
3
) [ms]
min. 280 400 560
max. 1100 1220 1380
Reading cycle
• Acyclic: max. 3/s, typical 1/s (depends on command # and number of preambles)
• Cyclic (Burst): max. 3/s, typical 2/s
The Deltabar FMD71/FMD72 offers BURST MODE functionality for cyclical value
transmission via the HART communication protocol.
Cycle time (update time)
Cyclic (burst): min. 300 ms
Response time
• Acyclic: min. 330 ms, typically 590 ms (depending on command # and number of
preambles)
• Cyclic (burst): min. 160 ms, typically 350 ms (depending on command # and number of
preambles)
15.2.8 alarm current setting
Adjusted min. alarm current: Product configurator order code for "Service", option "IA"
15.2.9 Firmware version
Description Option
1)
01.00.zz, HART, DevRev01 78
1) Product Configurator, order code for "Firmware version"