Instruction Manual

6 OPERATION
50
UFM 530 HT
www.krohne.com 12/2013 - 4002393201- HB UFM 530 HT R02 en
Error
message
Description of error message What to do
ADC AN INP Analog input internal error (A1or A2). Switch off the flowmeter and switch it on
again. If the error still exists, contact your
local representative.
COMMUNIC Communication device internal error. Reset the error and wait for one minute. If
the error reappears, contact your local
representative.
CURR > MAX Current output overflow (> 22 mA). Check flow velocity.
DSP Digital signal processor (DSP) internal
error.
Only checked at power-up. Switch off the
flowmeter and switch it on again. If the
error still exists, contact your local
representative.
EE MENU Menu parameters corrupted. Contact your local representative.
EE SERVICE Service parameters internal error. Contact your local representative.
EMPTY PIPE Measuring tube not completely filled,
flowreading to 0, error on all paths.
Fill measuring tube completely.
FLOW > MAX Measuring range overflow
(flow > 2 x Q
max
).
Check flow velocity.
FRONT END Front end internal error. Only checked at power-up. Switch off the
flowmeter and switch it on again. If the
error still exists, contact your local
representative.
INP1 < MIN Analog input 1 too low (<3.6 mA). Check analog input 1 connection.
INP1 > MAX Analog input 2 too high (>22 mA). Reduce analog input 1 current.
INP2 < MIN Analog input 2 too low (<3.6 mA). Check analog input 2 connection.
INP2 > MAX Analog input 2 too high (>22 mA). Reduce analog input 2 current.
RESTART Flow meter restarted. Reset errors.
UNRELIABLE Flow data disturbed, same as triangle 4 in
the compass field.
Check flow conditions.
OPEN CIRC Sensor X not connected or damaged
(combined with message SENSOR X).
Check connection of sensor X. For sensor
numbering see description of test function
2.03.04.
PATH 1 Measuring path 1 error. Check flow conditions.
PATH 2 Measuring path 2 error. Check flow conditions.
PULS > MAX Pulse output overflow (>120%). Check flow velocity.
SENSOR X Sensor X error (combined with OPEN CIRC
or SHORT CIRC message).
Check connection sensor X.
SHORT CIRC Sensor X short-cicuited (combined with
message SENSOR X).
Check connection sensor X.
TIME/DATE Real time clock internal error. Not available, reserved for future use.
TOT > DISP Totalizer out of display range (maximum:
eight characters).
Reset totalizer or change totalizer unit.
TOT CHKSUM Totalizer corrupted. Reset totalizer.
UP2 μP2 internal error. Contact your local representative.