Operation – KROHNE H250 M8-M9-M10 EN User Manual
Page 52
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OPERATION
52
H250
www.krohne.com
04/2011 - 4000269302 MA H250-R02 en
1.4
TIME CONST.
Setting : 1 ... 20 seconds
Note:
The settable time constant affects the current output and the displayed
current flow rate.
It thus enables damped depiction if there is a highly variable flow rate.
If the current flow rate is polled via HART
®
communication, then the
transferred measured value is dependent on the time constant here, too.
1.5.1
RESET
COUNTER
YES - NO
1.5.2
RESET
ERROR
YES - NO
2.1
4-20mA OUT
The analogue current output can be set to fixed values in 10% steps
between 4.00...20.00 mA.
This function has no influence on binary switching outputs.
Note:
This test function is switched off in multidrop mode.
Display: "NOT AVAILABLE".
2.2
OUTPUT B1
OPEN
The function assignment in menu 3.2 is not taken into consideration here.
CLOSED
2.3
OUTPUT B2
OPEN
The function assignment in menu 3.3 is not taken into consideration here.
CLOSED
2.4
INPUT B3
Here there is a visual depiction of whether or not input B3 has a voltage of
5...30 V.
If input B3 is set to ACTIVE HI in menu 3.8, then the display shows "ON"
when the switching voltage is applied.
Note:
NO test function possible when the output is set to INACTIVE in menu 3.8.
3.1
LANGUAGE
ENGLISH
DEUTSCH
FRANCAIS
ITALIANO
ESPANOL
CESKY
POLSKI
NEDERLANDS
3.2
FUNCTION B1
INACTIVE
Output B1 is switched off.
SWITCHING
POINT
Output B1 switches at a set value depending on the current flow value.
COUNTER_LIM
Output B1 switches when the counter exceeds the counter limit value.
3.3
CONTACT B1
NC contact
Output B1 is normally closed. If an alarm situation occurs, the contact
opens.
NO CONTACT
Output B1 is normally open. If an alarm situation occurs, the contact
closes.
3.4
FUNCTION B2
INACTIVE
See FUNCTION B1
SWITCHING
POINT
See FUNCTION B1
COUNTER_LIM
See FUNCTION B1
PULSE OUTPUT
Output B2 generates pulses up to 10 Hz depending on the current flow
value.
Level Designation
Selection /
Input
Explanation
MA_H250_R02_en_269302_PRT.book Page 52 Tuesday, April 12, 2011 10:17 AM