Hanna-instruments HI 8510 Manual de usuario descargar pdf (Pagina 7)

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FUNCTIONAL DESCRIPTION HI 8710

Keypad

SET To set the pH dosage limit

MEASURE To enter measurement mode

and to enable diagnostic tests

SENSOR TEST To display electrode mV reading

and verify its working condition

ΔΔ

ΔΔ

ΔAL To display & set alarm tolerance

pH 7 TEST To verify Offset compensation

pH 4 TEST To verify amplifier circuit

Trimmers

ΔΔ

ΔΔ

ΔO For Offset calibration

SLOPE For Slope calibration

ΔΔ

ΔΔ

ΔAL To set the alarm tolerance

SET/COARSE To coarsely adjust the setpoint

SET/FINE To finely adjust the setpoint

LEDs

ACID Show that acid dosage is active

BASE Show that basic dosage is active

ΔΔ

ΔΔ

ΔAL (blinking) Indicate an active alarm

FRONT PANEL

SLOPE

ACID

BASE

ΔAL

0

Δ

COARSE

SET

FINE

SENSOR

TEST

MEA

SURE

ΔAL

SET

pH 7

TEST

pH 4

TEST

pH

HI 8710E

pH

1. Fuse holder

2. Power supply terminals

3. Recorder output terminals

4. Connections to the transmitter

REAR PANEL HI 8512T

Unplug the instrument from the power

supply before replacing the fuse.

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