Hanna Instruments HI 8510 Manual de usuario

HI8711 allows the selection of two set points with two independent outputs for acid and alkaline

dosages.

•Auto-diagnostics to verify offset and slope calibration and electrode contamination deterioration

•Fail Safe Alarm System protects against problems caused by power supply failure or signal

interruption

•Selectable manual ON, OFF and automatic dosing control for alkaline and acid dosing with

indicator.

Fail Safe Alarm System

•Hanna’s exclusive Fail Safe Alarm System protects against problems caused by power supply

failure or signal interruption, which are typical risks in industrial environments. An alarm

condition is indicated by a red LED, located directly on the front panel of the controller.

Self-Diagnostic Test

•Built-in autodiagnostic functions enable the user to check and troubleshoot any malfunctions.

The functions are made via front panel keys to isolate the cause of malfunction whether it is due

to pH electrode contamination, internal offset circuit or the amplifier circuit.

Overtime Dosing Protection

•The HI8711 incorporates adjustable overtime dosing protection from 5 to 60 minutes. If dosing

exceeds selected time, the alarm will be triggered and the dosing contact will deactivate. This

feature can be activated or deactivated.

Matching Pin Connection

•Supports potential matching pin connection to avoid typical problems caused by grounding loop

current, such as progressive damage of the electrode, fluctuating measurements, and poor

process regulation.

Output and Input Connections

•Each model accepts either a direct input from a pH or ORP electrode or from a transmitter

through 4-20 mA input. The instrument also provides ±5V power output and input terminals for

amplified electrodes. Moreover, you can choose the output configuration for connecting a

recorder or a PLC, between 0-20 or 4-20 mA.

obust Design

•A removable, transparent splash-proof cover protects the front panel.

pH ange 0.00 to 14.00 pH

pH esolution 0.01 pH

pH Accuracy ±0.02 pH (0 to 100 °C); ±0.05 pH (-20 to 0 °C); ±0.5% (input from transmitter)

Calibration offset: ±2 pH with OFFSET trimmer; slope: 80 to 110% with SLOPE trimmer

Temperature

Compensation

fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F)

pH Input

impedence

high impedance 10¹² Ohm; reference and matching pin inputs are available; 4-20

Process Control Meter

Alarm elay

Set Point 1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected)

Alarm elay

ange 0.2 to 3.00 pH

Dosing

Control OFF AUTO ON with selection switch

Over Dosing

Control

adjustable, from 5 min to 60 min with knob or disable by wire strap - on rear

panel

Backlight continuous on

Voltage

Output ±5 Vcc; 150 mA max load for amplified electrodes

Enclosure flame retardant ABS body and front panel; transparent splash-proof front cover

Panel Cutout 141 x 69 mm (5.6 x 2.7’’)

ecorder

Output 0-20 mA or 4-20 mA (isolated)

Set Point 2, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected);

range: alk. set: from 0.00 to 14.00 pH; acid set: from 0.00 to 14.00 pH

Power

Supply 115 VAC ±10%; 50 60 Hz

Environment -10 to 50°C (14 to 122°F); RH max 95% non-condensing

Weight 1 kg (2.2 lb.)

Ordering

Information The HI8711 is supplied complete with mounting brackets and instructions.

Instruction Manual

HI 8510-HI 8512

HI 8710-HI 8711

HI 8720-HI 931500

HI931501-HI932500

Panel - Mounted

ORP - pH Indicators

andControllers

SLOPE

DOSAGE

OXID. REDUC.

∆AL

COARSE

SET

FINE

∆AL

MEA

SURE SET

0 mV

TEST 500 mV

TEST

HI 8720E

ORP

http://www.hannainst.com

These Instruments are in Compliance with the CE Directives

DearCustomer,

Thank you for choosing a Hanna Instruments

Product.

Please read this instruction manual carefully

beforeusingtheinstrument.

Thismanualwillprovideyouwithalltheneces-

sary information for the correct use of the

instrument, as well as a precise idea of its

versatilityinawiderange ofapplications.

These instruments are in compliance with

directives.

PreliminaryExamination ............................. 3

GeneralDescription..................................... 3

MechanicalDimensions .............................. 5

FunctionalDescriptionHI 8510.................... 6

FunctionalDescriptionHI 8512.................... 9

FunctionalDescriptionHI 8710.................. 12

FunctionalDescriptionHI8711 .................. 16

FunctionalDescriptionHI 8720.................. 20

FunctionalDescriptionHI931500 .............. 24

FunctionalDescriptionHI931501 .............. 26

FunctionalDescriptionHI932500 .............. 29

SpecificationsHI8510 and HI8512 ........... 31

SpecificationsHI 8710 andHI 8711 ........... 32

SpecificationsHI8720 and HI 931500 ....... 33

SpecificationsHI931501andHI 932500.... 34

InitialPreparation ...................................... 35

OperationalGuide ..................................... 38

pHCalibration ........................................... 42

pHValuesatVariousTemperature............. 44

pH Diagnostic Tests .................................. 45

ORP Diagnostic Tests............................... 47

LEDIndication........................................... 48

TakingRedoxMeasurements .................... 49

ElectrodeConditioningandMaintenance... 50

SuggestedInstallations ............................. 57

Accessories.............................................. 59

Warranty ................................................... 65

CEDeclarationofConformity .................... 66

TABLE OF CONTENTS

PRELIMINARY EXAMINATION

Remove the instrument from the packing

material and examine it carefully to make

sure that no damage has occurred during

shipping. If there is any noticeable damage,

notify your Dealer.

Note: Save all packing materials until you

are sure that the instrument functions

correctly. All defective items must be

returned in the original packing materials

together with the supplied accessories.

GENERAL DESCRIPTION

HI 8510, HI 8512, HI 8710, HI 8711, HI 8720,

HI 931500, HI 931501 and HI 932500 are pH-

ORP panel-mounted indicators and control-

lers designed for simplicity of use in a wide

range of industrial process applications.

The models are designed with DIN standard

panel mount with membrane keypads on the

front panel, a large LCD display and

autodiagnostic functions (not HI 931500,

HI 931501 and HI 932500).

Connections to the power supply, contacts

and recorders are made through screw termi-

nals on the rear panel.

Two models are available for HI 8510, HI 8711,

HI 8512, HI 8520. The E-model accepts input

direct from the pH or ORP electrode, while

the T-model accepts a 2-wire current loop of

4 to 20mA from a pH or ORP transmitter.

HI 931500, HI 931501 and HI 932500 are

equipped with a BNC socket to connect a

pH-ORP electrode.

Other features include: recorder output in 0

to 20mA or 4 to 20 mA; LED indicators

which identify the controller mode.

Using the pH indicators in conjunction with a

4-20mA output pH transmitter HI 8614 or

HI 8614L (with LCD display) and using the

ORP indicators in conjunction with a 4-20 mA

output ORP transmitter HI 8615 or HI 8615L

(with LCD display) will assure you of a strong,

interference-free signal at distances up to

300 m (1000 ft).

All instruments are supplied with a plastic

transparent front cover and mounting brack-

ets (electrode and mains cable excluded).

MECHANICAL DIMENSIONS

The meters have a DIN 43 700 casing in

black anodized aluminum. Front and back of

the instruments are supplied with shockproof

ABS plastic and a transparent protective cover

for the front panel.

Front view of the panel-mounted unit.

These dimensions show the cutout size for

the installation.

Side view of the panel-mounted unit.

Adjustable location brackets (supplied with

the meter) allow the indicator to slide into the

cutout and will hold the unit securely in place.

190 mm (7.50") is the minimum amount of

room required to install the indicator with the

cables connected.

190mm MIN

7.50"

135mm

5.31"

0.25/4mm

0.01/0.160"

144mm

5.67"

ADJUSTABLE

LOCATION

BRACKET

141mm

5.55" 144mm

5.67"

69mm

2.71"

72mm

2.83"

FUNCTIONAL DESCRIPTION HI 8510

pH INDICATOR

FRONTPANEL

SLOPE

∆

SENSOR

TEST

pH 7

TEST pH 4

TEST

HI 8510E

Keypad

SENSORTEST

TodisplaythemVresponseoftheelectrodein

ordertoverifyitsworkingcondition

pH 7 TEST

Toverifytheinternalcircuitofthemeterinterms

ofOffsetcompensation

pH 4 TEST

Toverify the amplifiercircuitofthemeter

Trimmers

∆∆

∆OForOffsetcalibration

SLOPE ForSlopecalibration

Unplug the instrument from the power

supplybeforereplacingthefuse.

1.FuseHolder

2.Power supply

3.Recorderoutput

4.ConnectionsforPT100temperaturesensor

5. BNC socket for pH electrode.

FUSE

ELECTRODE

INPUT

PT100

mA OUT

220

110

REARPANELHI8510E

Unplug the instrument from the power

supplybeforereplacingthefuse.

1.FuseHolder

2.Power supply

3.Recorderoutput

4. Connections to the transmitter.

REARPANELHI8510T

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