Aalborg TIO Totalizer I/O Flow Monitor/Controller Manuel d'utilisateur télécharger pdf (Page 73)

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NO. INDICATION LIKELY REASON SOLUTION

5

Erratic Flow rate

Reading

Wrong configuration of

J2 Input/Output

Jumpers

Check J2 input jumper configuration (see

Table 6.4) If necessary contact factory for

additional help.

TIO “Full Scale Flow”

parameter value (in

litr/min) is not equal to

the mated device full

scale range

Check settings for “Full Scale Range (See

Paragraph 5.3.14 Submenu “Device

Calibration”). Full Scale Range parameter

must be set equal to the mated device full

scale flow rate in Litr/min.

TIO “Fluid Std. Density”

parameter is not set

according to fluid being

used and mass-based

engineering units are

selected.

Check settings for “Fluid Std. Density” (See

Paragraph 5.3.14 Submenu “Device

Calibration”). This parameter is required

only when mass-based engineering units are

selected.

6

Totalizer reading is

wrong

Wrong configuration of

J2 Input/Output

Jumpers

Check J2 input jumper configuration (see

Table 6.4) If necessary contact factory for

additional help.

TIO “Full Scale Flow”

parameter value (in

litr/min) is not equal to

the mated device full

scale range

Check settings for “Full Scale Range (See

Paragraph 5.3.14 Submenu “Device

Calibration”). Full Scale Range parameter

must be set equal to the mated device full

scale flow rate in litr/min.

7

LCD Displays flow read-

ing, but communication

interface does not work.

Wrong host PC inter-

face, or wiring connec-

tion.

Make sure interface type (RS-232 or RS-

485) on the host PC is the same as on TIO

device. If required, use RS-232 to RS-485

converter. Check communication wiring

connection according to Paragraph 4.4

TIO has RS-485 inter-

face, butt device

address does not match

to address used by host

PC.

Change TIO RS-485 address to be matched

to host PC software settings (see Paragraph

5.3.13 b).

8

The Device Diagnostic

Alarm Event with code

0 – “CPU Temp. High”

is active.

MCU / PCB temperature

is too high (overload).

Disconnect power from the TIO. Make sure

the ambient temperature is within specified

range (below 70 °C). Let the device cool

down for at least 15 minutes. Apply power

to the device and check Diagnostic Alarm

Event. If overload condition will be indicated

again the unit must be returned to the facto-

ry for repair.

9

The Device System

Event with code D -

“Fatal Error” is active.

Fatal Error (EEPROM or

SRAM corrupted)

Cycle the power on the TIO. If System Event

with code D indication again the unit must

be returned to the factory for repair.

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