14 basic flow calculation (basic mode), Basic flow calculation (basic mode) -29 – Yokogawa EJX930A User Manual

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<3. Parameter Setting>

3-29

IM 01C25R02-01E

(5) Squawk (Effective only when setting to

HART 7)

This feature can be used to identify the

communicating transmitter by remotely causing

LCD to display the particular pattern as shown in

the Figure 3.3.

“SQUAWK” continues for approximately 15

seconds, then is released automatically.

Enter the larger number to “Change number of

squawks to make” in order to prolong the duration

of squawk indication.

• Procedure to call up the

Squawk display

[Root Menu] → Diag/Service → Test → Squawk

P

SP

T

F

F0309.ai

Figure 3.3

LCD display for Squawk

3.3.14 Basic Flow Calculation (Basic mode)

In the case of Basic mode, flow operation and

density compensation are performed conventionally

with the flow factors manually input.
The flow rate is calculated using the constant flow

factor.
Density is compensated as follows according to the

selection of gas or liquid.

Gas: Compensation as ideal gas by

temperature and pressure.

Liquid: Compensation by temperature.

There are an automatic compensation mode and

basic mode in the flow calculation, and either is

selected in the

Flow Calc Mode parameter.

• Procedure to call up the display

DD (HART 5/7)

DTM (HART 7)

[Root Menu] → Detailed setup →

Basic Flow Calc → Flow Calc Mode

DTM (HART 5)

Configuration → Basic Flow Calc →

Flow Calc Mode →

Display Item

Contents

Basic Mode

Basic calculation mode

Auto Comp.

Mode

Automatic compensation mode

(Use FSA120 for this mode)

Select “Basic Mode” here, and set the parameters

according to the procedure of Table 3.2.

FSA120 (FieldMate FlowNavigator) can configure

both automatic compensation mode and basic

mode. For detail, refer to the User’s Manual of

FSA120 FieldMate FlowNavigator (IM 01C25R51-

01E).

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