Example – Yokogawa 202 Field Mounting Rate Totalizer User Manual

Page 23

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Example

19

5. EXAMPLE

A flowmeter produces 20.538 pulses per litre and has a maximum output
frequency on 200Hz. It is required to display the flow rate in litres/min with 1
decimal point and the total in litres with no decimals. A 4-20mA output is
installed and 4mA is to represent 0 litres/m and 20mA is to represent 500 litres/m.
The instrument is then programmed as follows:

Calibration mode is entered by removing the lower cover strip (ie. the dark grey
strip along the bottom of the enclosure) and replacing it the wrong side up.

The following values are then entered:

Step

Value of

Parameter

Description

CAL00

0

No Pulse Output

CAL01

00020

Scaling Factor (whole numbers)

CAL02

5380

Scaling Factor (decimals)

Cal03

0.25

Cutoff Frequency

Cal04

1

Rate decimal position

Cal05

1

Timebase

Cal06

01

Filter disabled

Cal07

0

Total decimal position

Cal08

0001

Total Conversion (set to 1.0000)

Cal09

0000

Total Conversion (decimals)

Cal10

00000

Low Alarm (not installed)

cal11

0000

Low Alarm (not installed)

Cal12

00000

High Alarm (not installed)

Cal13

0000

High Alarm (not installed)

Cal14

00000

4mA Output (whole numbers)

Cal15

0000

4mA Output (decimals)

Cal16

00500

20mA Output (whole numbers)

Cal17

0000

20mA Output (decimals)

SOFT

1.01

Software Version

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