Version: TCM_0450_E80_M_EN_150209_E007
36
Manual Operation
4.3.5.
Event Logging
Starting with software version Mv3.40 and Dv3.40, all TRICOR Coriolis mass flow meters include event logging
that records events occurring at runtime with a timestamp and a unique code. These events can either be
shown on the display or read/reset (erased) via Modbus. The use of event logging is explained below using the
display as an example. For a description of access via Modbus, see the Modbus manual (document:
“Modbus
(RTU)
Manual”: chapter 3.6).
There are three event classes:
INFO: Information that a permissible event has occurred (successful initialisation for example).
WARN: Warning that a generally permissible but possibly problematic event has occurred
ERR:ON or ERR:OFF: Indicates that an error state has occurred (ERR:ON) or is no longer active
(ERR:OFF)
4.3.5.1.
Event codes
All events codes are listed below and their meanings are explained.
Error (ERR codes)
Event Code
Message on display
Meaning
ERR:
ON
ERR:
OFF
0
96
INITIALIZATION FAILED
Device initialisation could not be completed successfully.
1
97
AMP. SENSOR A
The voltage amplitude induced on Sensor A is too high or
too low.
2
98
AMP. SENSOR B
The voltage amplitude induced on Sensor B is too high or
too low.
3
99
MEAS. DELAY OVER 250
The measured time delay is above the specified allowable
limit value
5
101
UNST. DRIVER CURRENT
Driver current is too unstable
6
102
PT1000 OUT OF RANGE
The value of the temperature sensor is too high or too low
(often indicates a line break or short circuit)
7
103
TUBE FREQ. TOO LOW
The frequency of the oscillating tube is below the specified
allowable limit value
8
104
TUBE FREQ. TOO HIGH
The frequency of the oscillating tube is above the specified
allowable limit value
9
105
DRIVER CURRENT LOW
The driver current is below the specified allowable limit
value
10
106
DRIVER CURRENT HIGH
The driver current is above the specified allowable limit
value
17
113
MASS FLOW TOO HIGH
The mass flow is above the specified allowable limit value
18
114
MASS FLOW TOO LOW
The mass flow is below the specified allowable limit value
19
115
TEMPERATURE TOO HIGH
The temperature is above the specified allowable limit value
20
116
TEMPERATURE TOO LOW
The temperature is below the specified allowable limit value
21
117
DENSITY TOO HIGH
The density is above the specified allowable limit value
22
118
DENSITY TOO LOW
The density is below the specified allowable limit value
23
119
PRESSURE TOO HIGH
The pressure is above the specified allowable limit value
24
120
PRESSURE TOO LOW
The pressure is below the specified allowable limit value
Tab. 1: List of errors (ERR Codes)