NIVELCO EasyTREK SP-500 Pro, Инструкция по установке и программированию

Страница: 25 / 44

spa580en22p06 ♦ 25 / 44
P28 - a Echo loss indication FACTORY DEFAULT: 0
a Echo loss indication: Note
0 Delayed indication
During a short echo-loss, the last transmitted value is held for the time period of P29 . After this period,
the current value will be transmitted according to the setting in P12a, via HART at bit 0 of the DSE*
of HI.
1 No indication For the time of the echo-loss, analog output will hold last value.
2 Filling simulation
Losing echo during the filling process, transmitted value will increase according to the filling speed
set in P26 .
3 Immediate indication
Losing echo, the current value will immediately be transmitted.
−
Bit 0 of DSE* via HART (to display noEcho)
− Current value according to current output P12a .
4 Empty tank indication
Echo-loss may occur in completely empty tanks with a spherical bottom due to deflection of the
ultrasonic beam, or in case of silos with an open outlet. In such cases, is better to indicate empty tank
instead of echo loss.
EView2 setting: “Device Settings” → “Measurement optimalization” → “Echo loss handling.”
* DSE – “Device Specific Error” signaling bits (HART). See also chapter 7. ERROR HANDLING .