EUTECH INSTRUMENTS ALPHA PH1000 PHORP CONTROLLERTRANSMITTER Manual de Instruções descarregar pdf (Página 23)

Instruction Manual alpha-pH 1000

1) Follow directions in 7.4.1 to enter Controller mode.

2) Press the ENTER key. Scroll until the lower display shows “rEL” and the

upper display shows the current selection (de-energised = dEEN or

energised = EN).

3) Press the ▲ or ▼ key to choose de-energised or energised relay state.

4) Press the ENTER key to confirm your selection.

5) Proceed to 7.4.4 step 3, or return to Measurement mode by pressing the

▲ and ▼ keys simultaneously (escape).

7.4.4 Selecting proportional range value Xp

Note: If the controller type “oFF” or “L.Ct” is set, the parameters listed in 7.4.4

and 7.4.5 are blanked out.

This mode lets you set a band as a percentage of its full scale value. You can select this range from 10 to

200%, and the lower display shows “PrP”.

1) Follow directions in 7.4.1 to enter Controller mode.

2) Press the ENTER key. Scroll until the upper display shows the

proportional range (a number from 10 to 200%), and the lower display

shows “PrP”.

3) Press the ▲ or ▼ key to choose the proportional range value Xp.

4) Press the ENTER key to confirm your selection.

5) Proceed to 7.4.5 step 3, or return to Measurement mode by pressing the ▲ and ▼ keys simultaneously

(escape).

7.4.5 Maximum Pulse Length (tPL) or Maximum Frequency (FPF)

Note: If the controller type “oFF” or “L.Ct” is set, the parameters listed in 7.4.4 and 7.4.5 are blanked out.

This mode lets you set the maximum pulse length or the maximum frequency at which the relay will operate.

1) Follow directions in 7.4.1 to enter Controller mode.

2) Press the ENTER key. Scroll until the lower display shows “t.PL” or

“F.PF”.

- In PLC (pulse length) mode: The lower display shows “t.PL” to indicate

pulse length. The upper display shows your current pulse length. You

can select any value from 0.5 to 20 seconds.

- In PFC (pulse frequency) mode: The lower display shows F.PF to

indicate pulse frequency. The upper display shows your current

maximum pulse rate. You can select any value from 60 to 120 pulses

per minute. When the measured value exceeds the Proportional Band

in 7.4.4, the controller will pulse the relay at this rate.

3) Press the ▲ or ▼ key to choose the period duration or maximum

frequency, depending on your mode.

4) Press the ENTER key to confirm your selection and to return to Advanced Set-up mode, or return to

Measurement mode by pressing the ▲ and ▼ keys simultaneously (escape).

NOTE: The alarm contact is always of the fail-safe type: in the event of power failure the alarm is triggered.

dEEn

rEL

SETUP

HOLD

rEL

SETUP

HOLD

100

PrP

SETUP

HOLD

10.0

t.PL

SETUP

HOLD

F.PF

SETUP

HOLD

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 39 40

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