Tokyo Keiki UFL-30, Installation & Operation Manual

Page: 106 / 166

II-47
II-2-7 Output operating during aberrations in measurement
Fig. 4-4; Transition diagram during measurement aberrations
Note:
When setting “ROFF A-OUT OPE”. and “B.D. A-OUT OPE.”, the following operations can be selected.
0% Output Zero flow
HOLD Output the last value that was measured properly.
100% Output maximum flow rate that was input
BURN OUT Display Zero flow, Output current 20.8mA
• Integration
Integration is continuous.
• ROFF Contact Output & ROFF Alarm
ROFF contact output and alarm indication < R > is in accordance with the ROFF ALARM, INP-141.
• B.D. Contact Output & Alarm
B.D. Contact Output is activated when there is a component failure and the display will indicate
[ERR##]. A broken measuring path will be indicated as a no receiving echo [ROFF] condition.
FAULT TOLERANCE
Measurement
interrupted by
Critical Breakdown
B.D. A-OUT OPE.
YES
NO
No Echo Receiving,
ALL paths
There is a breakdown.
No Echo Receiving,
ANY path
NO
ROFF A-OUT OPE.
B.D. A-OUT OPE.
ROFF A-OUT OPE.
0 : OFF
YES
1 : ON
YES YES
NO
NO
Averaged Output
between measurable paths
Continue measurement