KROHNE H250 M40 EN - Manual (Page 52)

6
OPERATION
52
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
FUNCTION B3 3.6 INACTIVE The binary switching input B3 has no function.
ACTIV H The internal flow counter is reset to 0.0 if there is an H-level at input B3
for at least 100 ms.
ACTIV L The internal flow counter is reset to 0.0 if there is an L-level at input B3
for at least 100 ms.
STARTH STOPL The counter is started by creating an H level at the B3 input and stopped
by creating an L level at the B3 input.
STARTL STOPH The counter is started by creating an L level at the B3 input and stopped
by creating an H level at the B3 input.
MULTIDROP 3.7 0…15 Polling adress for HART ® Multi-Drop Mode
When the address is 0, the HART ® multi-drop mode is disabled.
Attention: Attention: Attention: Attention:
When the HART
® multi-drop mode (Address 1…15) is activated, the
current loop is inactive (fixed current value of 4.5 mA) and no longer
follows the current process.
4mA CALIBR. 3.8 D/A calibration for beginning of measuring range (4mA)
Note: Note: Note: Note:
This function is not available in HART
® multi-drop mode.
Attention: Attention: Attention: Attention:
During calibration, the value of the current loop does not follow the
current process.
If a current measuring device in the 4...20mA loop detects a deviation
from the desired value 4,000mA, the measured value must be entered.
The correction value is accepted following the query Save and Confirm
with YES.
20mA CALIBR. 3.9 D/A calibration for the final value of the measuring range (20mA)
Note: Note: Note: Note:
This function is not available in HART
® multi-drop mode.
Attention: Attention: Attention: Attention:
During calibration, the value of the current loop does not follow the
current process.
If a current measuring device in the 4...20mA loop detects a deviation
from the desired value 20,000mA, the measured value must be entered.
The correction value is accepted following the query Save and Confirm
with YES.
ALARM
CURRENT
3.10 OFF Error indication via the current loop is deactivated. The current loop
follows the current process.
Note: Note: Note: Note:
This function is not available in HART
® multi-drop mode.
ALARM HIGH Error indication via the current loop is activated (failure signal "high" as
per NE43).
Note: Note: Note: Note:
This function is not available in HART
® multi-drop mode.
ALARM LOW Error indication via the current loop is activated (failure signal "low" as
per NE43).
Note: Note: Note: Note:
1) This function is not available in HART
® multi-drop mode.
2) This function is supported as of Electronic Revision 2.2.x.
Label Level Select /
Input
Explanation
MA_H250_M40_R02_en_640702_PRT.book Page 52 Wednesday, November 28, 2012 12:23 PM