Yokogawa EJA530A Manuel d'utilisateur télécharger pdf (Page 39)

IM 01C21F01-01E

8-8

8. BRAIN TERMINAL BT200 OPERATION

b. Setting Calibration Range Lower

Range Value and Higher Range Value

(C21: LOW RANGE, C22: HIGH

RANGE)

These range values are set as specified in the order

before the instrument is shipped. Follow the proce-

dure below to change the range.

• The measurement span is determined by the high

and low range limit values. In this instrument,

changing the low range value also automatically

changes the high range value, keeping the span

constant.

• Example 1: With present settings of 0 to 30 kPa,

set the lower range value to 0.5 kPa.

Span = Higher range value – Lower range value

FEED NO OK

SET

C21:LOW RANGE

0.5 kPa

DATA DIAG PRNT ESC

SET

C20:PRESS UNIT

kPa

C21:LOW RANGE

0.5 kPa

C22:HIGH RANGE

30.5 kPa

DEL CLR ESC

SET

C21:LOW RANGE

0 kPa

+ 0.5

The higher range value is changed

while the span remains constant.

Set 0.5.

Press the key twice to

enter the setting.

Press the (OK) key.

F0813.EPS

• Note, however, that changing the higher range value

does not cause the lower range value to change.

Thus, changing the higher range value also changes

the span.

• Calibration range can be specified with range value

specifications up to 5 digits (excluding any decimal

point) for low or high range limits within the range

of –32000 to 32000.

• Example 2: With present settings of 0 to 30 kPa,

set the Higher range value to10 kPa.

FEED NO OK

SET

C22:HIGH RANGE

10 kPa

DATA DIAG PRNT ESC

PARAM

C20:PRESS UNIT

kPa

C21:LOW RANGE

0 kPa

C22:HIGH RANGE

10 kPa

DEL CLR ESC

SET

C22:HIGH RANGE

30 kPa

+ 10

The low range value is not

changed, so the span changes.

Set 10.

Press the key twice

to enter the setting.

F0814.EPS

Press the (OK) key.

(3) Damping Time Constant Setup

(C30: AMP DAMPING)

When the instrument is shipped, the damping time

constant is set at 2.0 seconds. Follow the procedure

below to change the time constant.

• Example: Change from 2.0 sec to 4.0 sec.

ESC

SET

C30:AMP DAMPING

4.0 sec

FEED NO OK

SET

C30:AMP DAMPING

2.0 sec

< 2.0 sec >

< 4.0 sec >

< 8.0 sec >

< 16.0 sec >

Use the or key to

select 4.0 sec.

Press the key twice to

enter the setting.

F0815.EPS

0.2sec

0.5sec

1.0sec

2.0sec

4.0sec

8.0sec

16.0sec

32.0sec

64.0sec

Press the (OK) key.

Note: The damping time constant set here is the damping time

constant for the amplifier assembly. The damping time

constant for the entire transmitter is the sum of the values for

the amplifier assembly and for the capsule assembly. For the

capsule assembly damping time constant (fixed), see the

“General Specifications” found at the end of this manual.

(See Chapter 10.)

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Yokogawa EJA530A Manuel d'utilisateur Page 39

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