Endress+Hauser Gammapilot FMG50 - Performance Characteristics;Stability; Dead Time, Time Constant, Settling Time; Dynamic Behavior, Current Output (HART Electronics); Dynamic Behavior, Digital Output (HART Electronics)

Gammapilot FMG50
Endress+Hauser 25
L
WARNING
‣
Only operate the device with the covers closed
Performance characteristics/stability
Dead time, time constant,
settling time
Presentation of the dead time, time constant and settling time as per DIN EN 61298-2
I
63 %
100 %
t
t
1
t
2
t
3
-1%
A
A0042012
t
1
Dead time
t
2
Time constant
t
3
Settling time
A Stable full scale value
Dynamic behavior, current
output (HART electronics)
• Dead time (t
1
):
• Unmodulated: 250 ms
• Modulated: 400 ms
• Time constant T63 (t
2
): adjustable 0.0 to 999.9 s
• Settling time (t
3
):
• Unmodulated: minimum 450 ms
• Modulated: minimum 20 s
Dynamic behavior, digital
output (HART electronics)
• Dead time (t
1
):
• Unmodulated:
- Minimum: 400 ms
- Maximum: 1 210 ms
• Modulated:
- Minimum: 4 150 ms
- Maximum: 4 960 ms
• Time constant T63 (t
2
):
• Minimum: 310 ms + adjustable 0.0 to 999.9 s
• Maximum: 1 100 ms + adjustable 0.0 to 999.9 s
• Settling time (t
3
):
• Unmodulated: minimum 600 ms
• Modulated: minimum 21 s
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 device commands the BURST MODE function for cyclic value transmission via the HART
communication protocol.
Cycle time (update time)
Cyclic (burst): min. 300 ms
Reference operating
conditions
• Temperature: 20 °C (68 °F), ±10 °C (±50 °F)
• Pressure: 1 013 mbar (15 psi), ±20 mbar (±0.29 psi)
• Humidity: not relevant