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Setting the flow rate and flow velocity range, Bulletin f-70 – Dwyer UXF2 User Manual

Page 60

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20mA

4mA

0

100%

Flow rate

SPAN-1

4.5.5. Setting the flow rate and flow velocity range

4.5.5.1. Setting the flow rate range (single range FLOW SPAN-1)

Description
z

The range (full scale) of flow rate to measure is set.

* The analog output (4-20 mA) corresponds to the range setting.

z

After changing the range, adjust zero point (see Section 4.5.1.).

z

Settable range: 0.3 to 10 [m/s] in terms of flow velocity in piping.

* Piping parameters and FLOW UNIT must be set beforehand.
* If a value beyond the settable range is inputted, "INPUT ERROR" appears

and then last setting is resumed.

* If "piping parameters" or "FLOW UNIT" has been changed after setting

the range, recommence the range setting.

Note: 1. The flow rate unit is as selected by "FLOW UNIT" in the "MEASURE SETUP" mode (see Section 4.6.2.).

For concrete keying, refer to the typical operation indicated below. Set the parameter protection to OFF beforehand
(Section 4.4.1).

Typical operation Set the "FLOW SPAN-1" to 60 m

3

/h.

* Set the piping parameters and "FLOW UNIT" beforehand.

Keying order

Description

Indication

ź

Pressed twice to indicate "OUTPUT SETUP".

OUTPUT SETUP

ENT

ź

Pressed to select the ZERO ADJUST mode.

ZERO ADJUST
CLEAR

ź

Pressed 4 times to indicate "RANGE".

RANGE
FLOW RATE

ENT

ź

Pressed to blink the cursor.

RANGE

FLOW RATE

ENT

ź

Pressed to indicate "FLOW SPAN-1".

FLOW SPAN-1
0000010.0 m3/h

ENT

ź

Pressed to blink the cursor.

FLOW SPAN-1

0

000010.0 m3/h

ź

Pressed repeatedly until the cursor is positioned at "1".

FLOW SPAN-1
00000

1

0.0 m3/h

ź

Pressed 5 times to select "6".
Note: To change the decimal point position, align the

cursor to desired position and then press the

key.

FLOW SPAN-1
00000

6

0.0 m3/h

Pressed to register it.

FLOW SPAN-1

½½ COMPLETE ½½

Ļ

ENT

ź
ź
ź
ź

--- SPAN-1 registered.---

FLOW SPAN-1
60.0 m3/h

ESC

Press

ESC

key 3 times and press

key 3 times to

resume the measurement mode.

0.000 m/s
0.000 m3/h

BULLETIN F-70