Hanna Instruments HI 8711 User manual

Instruction Manual
HI 8510-HI 8512
HI 8710-HI 8711
HI 8720-HI 931500
HI931501-HI932500
Panel - Mounted
ORP - pH Indicators
and Controllers
SLOPE
DOSAGE
OXID. REDUC.
∆AL
COARSE
SET
FINE
∆AL
MEA
SURE SET
0 mV
TEST 500 mV
TEST
HI 8720E
ORP
mV
http://www.hannainst.com
These Instruments are in Compliance with the CE Directives

Dear Customer,
Thank you for choosing a Hanna Instruments
Product.
Please read this instruction manual carefully
before using the instrument.
This manual will provide you with all the nec-
essary information for the correct use of the
instrument, as well as a precise idea of its
versatility in a wide range of applications.
These instruments are in compliance with
directives EN 50081-1 and 50082-1.
Preliminary Examination ............................ 1
General Description ................................... 1
Mechanical Dimensions ............................. 3
Functional Description HI 8510 .................. 4
Functional Description HI 8512 .................. 7
Functional Description HI 8710 ................ 10
Functional Description HI 8711 ................ 14
Functional Description HI 8720 ................ 18
Functional Description HI 931500 ............ 22
Functional Description HI 931501 ............ 24
Functional Description HI 932500 ............ 27
Specifications HI 8510 and HI 8512 ......... 29
Specifications HI 8710 and HI 8711 ......... 30
Specifications HI 8720 and HI 931500 ..... 31
Specifications HI 931501 and HI 932500 . 32
Initial Preparation ..................................... 33
Operational Guide .................................... 36
pH Calibration .......................................... 40
ORP Calibration ....................................... 42
pH Values at Various Temperature ........... 43
pH Diagnostic Tests.................................. 44
ORP Diagnostic Tests .............................. 46
LED Indication.......................................... 47
Taking Redox Measurements................... 48
Electrode Conditioning and Maintenance. 51
Suggested Installations ............................ 56
Accessories .............................................. 58
Warranty................................................... 64
CE Declaration of Conformity .................. 65
TABLE OF CONTENTS
ISO 9000 Certified
Company since 1992

1
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.

2
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).

3
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"

4
FUNCTIONAL DESCRIPTION HI 8510
pH INDICATOR
FRONTPANEL
SLOPE
∆
SENSOR
TEST
pH 7
TEST pH 4 TEST
pH
HI 8510E
pH
Keypad
SENSORTEST
TodisplaythemVresponseoftheelectrodein
ordertoverifyitsworkingcondition
pH 7 TEST
Toverifytheinternalcircuitofthemeterinterms
ofOffsetcompensation
pH 4 TEST
Toverifythe amplifiercircuitof themeter
Trimmers
∆∆
∆∆
∆OForOffsetcalibration
SLOPE ForSlopecalibration

5
Unplug the instrument from the power
supplybeforereplacingthefuse.
1.FuseHolder
2.Powersupply
3.Recorderoutput
4.ConnectionsforPT100temperaturesensor
5. BNC socket for pH electrode.
FUSE
FUSE
ELECTRODE
INPUT
PT100
mA OUT
+
-
220
110
L
1
2
3
4
5
REARPANELHI8510E

6
Unplug the instrument from the power
supplybeforereplacingthefuse.
1.FuseHolder
2.Powersupply
3.Recorderoutput
4. Connections to the transmitter.
REARPANELHI8510T

7
FUNCTIONAL DESCRIPTION HI 8512
ORP INDICATOR
Keypad
0 mV TEST To verify the instrument cali-
bration at point 0
500 mV TEST To verify the slope at point
500 mV
Trimmers
SLOPE ForSlopecalibration
FRONTPANEL
SLOPE
0 mV
TEST 500 mV
TEST
mV
HI 8512E
ORP

8
Unplug the instrument from the power
supplybeforereplacingthefuse.
1.FuseHolder
2.Powersupply
3.Recorderoutput
4. BNC socket for ORP electrode.
REARPANELHI8512E
FUSE
FUSE
ELECTRODE
INPUT
220
110
L
1
2
3
4
mA OUT
+
-

9
Unplug the instrument from the power
supplybeforereplacingthefuse.
1.FuseHolder
2.Powersupply
3.Recorderoutput
4. Connections to the transmitter.
REARPANELHI8512T

10
FUNCTIONAL DESCRIPTION HI 8710
pH CONTROLLER WITH ALARM
Keypad
SET To set the working point of pH
dosage
MEASURE To set HI 8710 on measure-
ment mode and to enable the
diagnostic tests
SENSOR TEST To display the mV response
of the electrode in order to verify
its working condition
∆∆
∆∆
∆AL To display and set the toler-
ance of the alarm points
pH 7 TEST To verify the internal circuit of
the meter in terms of Offset
compensation
pH 4 TEST To verify the amplifier circuit of
the meter
FRONTPANEL
SLOPE
ACID BASE
∆AL
0
∆
COARSE
SET
FINE
SENSOR
TEST
MEA
SURE
∆AL
SET
pH 7
TEST pH 4 TEST
pH
HI 8710E
pH

11
Trimmers
∆∆
∆∆
∆OFor Offset calibration
SLOPE For Slope calibration
∆∆
∆∆
∆AL To set the tolerance of the
alarm
SET/COARSE To coarsely adjust the set point
SET/FINE To finely adjust the set point
Leds
ACID To show the acid dosage is
active
BASE To show the basic dosage is
active
∆∆
∆∆
∆AL (blinking) To show the alarm is active

12
Unplug the instrument from the power
supplybeforereplacingthefuse.
1.FuseHolder
2.Powersupply
3. Acid/Basic dosage selection
4.Reductantor oxidant dosage consent
5.Connectionsfordosingpump
6. Alarm contacts
7.Recorderoutput
8.ConnectionsforPT100temperaturesensor
9. BNC socket for pH electrode.
REARPANELHI8710E
FUSE
FUSE
ELECTRODE
INPUT
PT100
mA OUT
OPEN: ACID
SHORT: BASE
+
-
SET
CONSENT
ALARM
220
110
L
1
2
3
7
8
9
4
6
5

13
Unplug the instrument from the power
supplybeforereplacingthefuse.
1.FuseHolder
2.Powersupply
3. Acid/Basic dosage selection
4.Reductantor oxidant dosage consent
5.Connectionsfordosingpump
6. Alarm contacts
7.Recorderoutput
8. Connections to the transmitter.
REARPANELHI8710T

14
FUNCTIONAL DESCRIPTION HI 8711
DUAL OUTPUT pH CONTROLLER
Keypad
ACID SET To set the working point
of acid dosage
BASE SET To set the working point
of basic dosage
MEASURE To set HI 8711 on mea-
surement mode and to en-
able the diagnostic tests
SENSOR TEST To display the mV re-
sponse of the electrode to
verify its working condi-
tion.
∆∆
∆∆
∆Al To display and to set the
tolerance of the alarm
points
FRONT PANEL
SLOPE
∆AL
∆
COARSE
ACID SET
FINE
COARSE
FINE
BASE SET
HI 8711E
SENSOR
TEST
MEA
SURE
ACID
SET
∆AL
BASE
SET
pH 7
TEST pH 4 TEST
pH
HI 8711E
pH

15
pH 7 TEST To verify the internal cir-
cuit of the meter in terms
of Offset compensation
pH 4 TEST To verify the amplifier cir-
cuit of the meter
Trimmers
∆∆
∆∆
∆OFor Offset calibration
SLOPE For Slope calibration
∆∆
∆∆
∆AL To set the tolerance of
the alarm
ACID SET/COARSE To coarsely adjust the
acid set point
ACID SET/FINE To finely adjust the
acid set point
BASE SET/COARSE To coarsely adjust the
basic set point
BASE SET/FINE To finely adjust the ba-
sic set point
Leds
ACID SET (Blinking) To show the acid dos-
age is active
BASE SET (Blinking) To show the basic
dosage is active
∆∆
∆∆
∆AL (Blinking) To show the alarm is
active

16
Unplug the instrument from the power
supplybeforereplacingthefuse.
1. Fuse Holder
2. Power supply
3. Connections for dosing pump for acid
4. Connections for dosing pump for base
5. Alarm contacts
6. Recorder output
7. Connections for PT100 temperature sensor
8. BNC socket for pH electrode.
REAR PANEL HI 8711E
FUSE
FUSE
ELECTRODE
INPUT
PT100
mA OUT
+
-
BASE
ACID
ALARM
220
110
L
1
2
6
7
8
3
5
4

17
Unplug the instrument from the power
supplybeforereplacingthefuse.
1. Fuse Holder
2. Power supply
3. Connections for dosing pump for acid
4. Connections for dosing pump for base
5. Alarm contacts
6. Recorder output
7. Connections to the transmitter.
REAR PANEL HI 8711T

18
FUNCTIONAL DESCRIPTION HI 8720
ORP CONTROLLER
Keypad
SET To set the working point of ORP
dosage
MEASURE To set HI 8720 on measurement
mode and to enable the diag-
nostic tests
∆∆
∆∆
∆Al To display and to set the toler-
ance of the alarm points
0 mV TEST To verify the instrument calibra-
tion at point 0
500 mV TEST To verify the slope at point
500mV
FRONTPANEL
SLOPEDOSAGE
OXID. REDUC.
∆AL
COARSE
SET
FINE
∆AL
MEA
SURE SET
0 mV
TEST 500 mV
TEST
mV
HI 8720E
ORP