Yokogawa ADMAG CA - Manual (Page 70)

IM 1E8B0-01E
8-5
8. ACTUAL OPERATION
8.2.2 Error Description and Countermeasures
02
03
04
05
08
09
16
17
18
19
06
µ
P FAULT
EEPROM FAULT
A/D(H) FAULT
A/D(L) FAULT
VEL. SAPN>10m/s
VEL. SAPN<0.3m/s
P.SPAN<0.0001p/s
T.SPAN>1000p/s
T.SPAN<0.0001p/s
4-20 LMT ERROR
Microprocessor error
EEPROM error
A/D converter (high frequency side) error
A/D converter (low frequency side) error
Setting for span flow velocity exceeds 11 m/s
Setting for span flow velocity is 0.2 m/s or below
Pulse output rate exceeds 1100 p/s, at 50% DUTY
Pulse output rate exceeds 1000 p/s, at 0.5 ms
pulse width
Pulse output rate exceeds 500 p/s at 1 ms
pulse width
Pulse output rate exceeds 25 p/s at 20 ms
pulse width
Pulse output rate exceeds 15 p/s at 33 ms
pulse width
Pulse output rate exceeds 10 p/s at 50 ms
pulse width
Pulse output rate exceeds 5 p/s at 100 ms
pulse width
Pulse output rate is 0.00005 p/s or below
Internal totalization exceeds 1100 p/s
Internal totalization at 0.00005 p/s or less
4-20 low limit > 4-20 high limit
SIGNAL OVERFLOW
CA Display on BT Error Contents Countermeasures
Check for the following :
● Mixup of the signal, power supply,
execution, and other cable.
● Stray electorical currents in the
measured liquid.
● Improper grouping
Contact the nearest Yokogawa
office, or service center
Contact the nearest Yokogawa
office, or service center
Change setting
Excessive input signal
07 COIL OPEN Detector coil open-circuit
P.SPAN>1000p/s 10
11 P.SPAN>500p/s
12 P.SPAN>25p/s
13 P.SPAN>15p/s
14 P.SPAN>10p/s
15 P.SPAN>5p/s