Hanna Instruments HI 8614N User Manual

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Instruction Manual

HI 8614 • HI 8614L HI 8615 • HI 8615L

pH and ORP

Transmitters

www.hannainst.com

Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using these instruments. This manual will provide you with the necessary information for correct

use of these instruments, as well as a precise idea of their versatility. If you need additional technical information, do not hesitate to e-mail

us at tech@hannainst.com or view our worldwide contact list at www.hannainst.com.

WARRANTYWARRANTY

WARRANTY

WARRANTYWARRANTY

HI 8614, HI 8614L, HI 8615 and HI 8615L are guaranteed for two

years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months. This warranty is limited to repair or replacement free of charge.

Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered.

If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the problem. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packed for complete protection.

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION

PRELIMINARY EXAMINATION

PRELIMINARY EXAMINATIONPRELIMINARY 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 material until you are sure that the instrument

functions correctly. All defective items must be returned in the original packing material together with the supplied accessories.

GENERAL DESCRIPTIONGENERAL DESCRIPTION

GENERAL DESCRIPTION

GENERAL DESCRIPTIONGENERAL DESCRIPTION

HI 8614 / HI 8614L (pH) and HI 8615 / HI 8615L (ORP) are 2-wire water-resistant transmitters specially designed for long distance measurement of pH or ORP in industrial applications.

HI 8614 and HI 8615 and HI 8615L are models with LCD.

are models without LCD, and the HI 8614L

PRELIMINARY EXAMINATION ....................................................................... 3

GENERAL DESCRIPTION ............................................................................. 3

SPECIFICATIONS OF HI 8614 & HI 8614L .................................................. 5

SPECIFICATIONS OF HI 8615 & HI 8615L .................................................. 6

TERMINAL BOARD CONNECTIONS ................................................................ 7

pH CALIBRATION WITH AUTOMATIC TEMPERATURE COMPENSATION

(HI 8614 FAMILY) ................................................................................... 9

pH CALIBRATION WITH FIXED TEMPERATURE COMPENSATION

(HI 8614 FAMILY) ................................................................................. 12

ORP CALIBRATION (HI8615 FAMILY) ........................................................ 13

ELECTRODE CONDITIONING & MAINTENANCE ............................................... 17

TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ............................... 20

INSTALLATION PROCEDURE AND EXAMPLES ................................................. 22

ACCESSORIES ........................................................................................ 25

2 3

The LCD allows easy verification and monitoring of measured values, and provides easier calibration and maintainance.

The pH or ORP signal is transmitted in a 2-wire current loop in the range of 4 to 20 mA.

HI 8614 and HI 8614L, can be connected to the Hanna process instruments HI 8510, HI 8710, HI 8711 or to any recorder, computer or data monitor that accepts 4 to 20 mA input.

HI 8615 and HI 8615L, can be connected to the Hanna process instruments HI 8512, HI 8720 or to any recorder, computer or data monitor that accepts 4 to 20 mA input.

The transmitters use a universal BNC socket for quick and secure connection to any electrode with a BNC connector.

SPECIFICATIONS OF HI 8614 & HI 8614LSPECIFICATIONS OF HI 8614 & HI 8614L

SPECIFICATIONS OF HI 8614 & HI 8614L

SPECIFICATIONS OF HI 8614 & HI 8614LSPECIFICATIONS OF HI 8614 & HI 8614L

For HI 8614 performed by the transmitter's ATC circuitry if the temperature probe (HI 76608, optional) is attached. If ATC is not required, it is possible to substitute the temperature probe with a fixed resistor.

The input is isolated from the current loop to eliminate problems related to ground loop, low insulation cables, multiple electrode connections, and a common mode voltage of up to 100 V ensures true differential readings.

The terminal board of the transmitter provides for connection of power supply, pH or ORP electrodes and temperature probe (for HI 8614 family models only).

The unit is enclosed in a protective casing conforming to IP 65 standards.

Ordering codes:

Code Range LCD

HI 8614 0.00 to 14.00 pH NO HI 8614L 0.00 to 14.00 pH YES HI 8615 ±1000 mV NO HI 8615L ±1000 mV YES

family models the temperature compensation is

Range 4 to 20 mA / 0.00 to 14.00 pH Resolution 0.01 mA / 0.01 pH Accuracy

(@20°C/68°F) ±0.02 mA / ±0.02 pH Typical EMC Deviation ±0.25 mA / ±0.2 pH Calibration Offset: ±2.2 mA / ±2 pH

Slope: ±0.5 mA / 86 to 116%

Temperature Compensation

Fixed or automatic from 0 to 100°C

(32 to 212°F) with HI 76608 probe

Input Impedance 1012 Ohm Output 4-20 mA (isolated) Installation Category I I Protection IP 65 Environment 0 to 50°C (32 to 122°F);

RH max 95% non-condensing

Power Supply HI 8614: 18 to 30 Vdc

HI 8614L: 20 to 36 Vdc Load Max 500 Ohm Dimensions 165 x 110 x 71 mm

(6.5 x 4.3 x 2.8'')

Weight 1 kg (2.2 lb.)

4 5

SPECIFICATIONS OF HI 8615 & HI 8615LSPECIFICATIONS OF HI 8615 & HI 8615L

SPECIFICATIONS OF HI 8615 & HI 8615L

SPECIFICATIONS OF HI 8615 & HI 8615LSPECIFICATIONS OF HI 8615 & HI 8615L

TERMINAL BOARD CONNECTIONSTERMINAL BOARD CONNECTIONS

TERMINAL BOARD CONNECTIONS

TERMINAL BOARD CONNECTIONSTERMINAL BOARD CONNECTIONS

Range 4 to 20 mA / ±1000 mV Resolution 0.01 mA / 1 mV Accuracy

(@20°C/68°F) ±0.02 mA / ±5 mV Typical EMC Deviation ±0.25 mA / ±15 mV Calibration Offset: ±0.8 mA / ±100 mV

Slope: ±0.8 mA / 90 to 110%

Input Impedance 1012 Ohm Output 4-20 mA (isolated) Installation Category I I Protection IP 65 Environment 0 to 50°C (32 to 122°F);

RH max 95% non-condensing

Power Supply HI 8615: 18 to 30 Vdc

HI 8615L: 20 to 36 Vdc Load Max 500 Ohm Dimensions 165 x 110 x 71 mm

(6.5 x 4.3 x 2.8'')

Weight 1 kg (2.2 lb.)

Unscrew the 4 screws and remove the top cover.

There are three cable glands on the transmitter cover. The large cable gland with the split in the rubber is for the electrode.

Connect the positive supply to the strip terminal "+VE LOOP" and the negative supply to the terminal "-VE LOOP" of the transmitter terminal block.

6 7

The wire between the transmitter and the recorder/indicator/controller should be a PVC insulated two wire with a wire diameter of at least

0.7 mm. This wire is fed through one of the smaller cable glands. The maximum distance between the power supply and the amplifier is 300 m (1000'). It is not necessary to use shielded cable. The transmitter is protected against inversion of supply voltage.

Electrode connection: connect the BNC of the cable to the BNC socket on the transmitter.

pH CALIBRATION WITH AUTOMATICpH CALIBRATION WITH AUTOMATIC

pH CALIBRATION WITH AUTOMATIC

pH CALIBRATION WITH AUTOMATICpH CALIBRATION WITH AUTOMATIC

TEMPERATURE COMPENSATION (HI 8614 family)TEMPERATURE COMPENSATION (HI 8614 family)

TEMPERATURE COMPENSATION (HI 8614 family)

TEMPERATURE COMPENSATION (HI 8614 family)TEMPERATURE COMPENSATION (HI 8614 family)

INITIAL PREPARATION

• Connect the pH electrode to the BNC socket.

• Connect the temperature probe to the transmitter.

For HI 8614 family only: for automatic temperature compensation, connect

the 2 terminals of the temperature probe (HI 76608, optional) to "TEMP. PROBE" terminals.

If automatic temperature compensation is not required, short the "TEMP. PROBE" terminals with a resistance according to the external temperature:

Temperature (°C) Resistance (Ohms)

0 1634 10 1774 20 1922 30 2078 40 2242 50 2412 60 2590

Pour small quantities of pH7.01 and pH4.01 solution into two clean beakers.

For accurate calibration use two beakers for each buffer solution, the first one for rinsing the electrode, the second one for calibration. In this way contamination of the buffers is minimized.

To get accurate readings, use pH7.01 and pH4.01 if you are going to measure acid samples or pH 7.01 and pH 10.01 for alkaline measurements.

Note: With HI 8614L the instruments

display can be used during calibration without the need to connect the ammeter and the reading is directly expressed in pH units.

A 2 kohm resistor is factory mounted for 25°C temperature compensation.

8 9

PROCEDURE

• Disconnect the +ve supply cable from "+VE LOOP" terminal and connect a 20mA f.s. ammeter between the +ve cable and "+VE LOOP" terminal.

• Adjust the slope trimmer until the ammeter reads 8.58 mA for

HI 8614

and HI 8614L or the display shows "4.01" at 25°C. For

other buffer temperatures, refer to page 12 for the appropriate mA / pH reading.

If you are using pH 10.01 buffer solution adjust the slope trimmer until the ammeter read 15.43 mA at 25°C (77°F) or the value indicated at page 12.

• Remove the protective cap from the electrode, rinse it with some pH 7.01 solution or immerse it in the pH 7 rinse solution, then immerse the pH electrode and temperature probe into pH7.01 calibration buffer solution; shake briefly and wait for the reading to stabilize.

Note: The tip of the electrode should be

submerged approximately 4 cm (1½") into the solution. The temperature probe should be located as close to the pH electrode as possible.

• Adjust the offset trimmer until the ammeter reads 12 mA or the display shows "7.01" if the temperature of the buffer is at 25°C.

For other buffer temperatures, refer to page 12 for the appropriate mA / pH reading.

• Rinse the electrode with tap water or distilled water and a small amount of pH 4.01 or 10.01 buffer solution or immerse it in the pH 4 rinse solution (2nd calibration point). Dip the electrode and the temperature probe into pH 4.01 (or

10.01) calibration buffer solution, shake briefly and wait for a few minutes for reading to stabilize.

FOR HI8614L ONLY

The Display Module is factory calibrated, so that the LCD display results are referred to the 4-20 mA loop current (e.g. LCD displays

0.00 pH when the loop current is 4.00 mA and displays 14.00 pH when the current is 20.00 mA).

Under normal application, adjustment on this module may not be necessary.

If routine check is required, the following procedures shall be performed.

• Follow the procedure at page 10 to perform calibration on the transmitter module (using a ammeter).

• Simulate a 4.00 mA loop current for the transmitter (i.e. 0.00 pH as Electrode input) and check for display reading.

• Simulate a 20.00 mA loop current for the transmitter (i.e.

14.00 pH as Electrode input) and check for display reading.

Note: When HI 8614 or HI 8614L instruments are used in

conjunction with the new Hanna indicator HI 8510 or controllers HI 8710 and HI 8711, the calibration can also be performed on the indicator/controller. In this case slight calibration adjustment can be made on the indicator/ controller even if the whole system calibration is advised, always starting from the transmitter.

10 11

pH CALIBRATION WITH FIXED TEMPERATUREpH CALIBRATION WITH FIXED TEMPERATURE

erutarepmeT reffuB10.4Hp reffuB10.7Hp reffuB10.01Hp

Cº Fº Hp Am Hp Am Hp Am

0 23 10.4 43.9 31.7 21.21 23.01 59.41

5 14 00.4 33.9 01.7 90.21 42.01 88.41

01 05 00.4 33.9 70.7 60.21 81.01 38.41

51 95 00.4 33.9 40.7 40.21 21.01 77.41

02 86 00.4 33.9 30.7 30.21 60.01 27.41

52 77 10.4 43.9 10.7 10.21 10.01 86.41

03 68 20.4 53.9 00.7 00.21 69.9 36.41

53 59 30.4 63.9 99.6 99.11 29.9 06.41

04 401 40.4 73.9 89.6 89.11 88.9 65.41

54 311 50.4 83.9 89.6 89.11 58.9 35.41

05 221 60.4 93.9 89.6 89.11 28.9 15.41

55 131 70.4 04.9 89.6 89.11 97.9 84.41

06 041 90.4 14.9 89.6 89.11 77.9 64.41

pH CALIBRATION WITH FIXED TEMPERATURE

pH CALIBRATION WITH FIXED TEMPERATUREpH CALIBRATION WITH FIXED TEMPERATURE

COMPENSATION (HI 8614 family)COMPENSATION (HI 8614 family)

COMPENSATION (HI 8614 family)

COMPENSATION (HI 8614 family)COMPENSATION (HI 8614 family)

• Take the temperature of the buffer solutions using a Checktemp or a thermometer with a resolution of at least 1°.

• Connect the appropriate resistor to the "TEMP. PROBE" terminals (see page 8) depending on the temperature of the calibration solution.

• Follow the procedure as outlined in the calibration with automatic temperature compensation and use the thermometer reading to adjust the trimmer until the ammeter reads the value according to the following table.

HI 8614, HI 8614L

ORP CALIBRATION (HI 8615 family)ORP CALIBRATION (HI 8615 family)

ORP CALIBRATION (HI 8615 family)

ORP CALIBRATION (HI 8615 family)ORP CALIBRATION (HI 8615 family)

INITIAL PREPARATION

Disconnect the +ve supply cable from the "+VE LOOP" terminal and connect a 20 mA f.s. ammeter between the +ve cable and the "+VE LOOP" terminal. With HI 8615L the instrument display can be used during calibration without the need to connect the ammeter. In this case the values are directly expressed in mV units.

Pour a small quantity of HI 7020 ORP solution into a beaker.

PROCEDURE

• Connect the shorting BNC connector to the ORP transmitter.

• Adjust the OFFSET ADJUSTMENT trimmer on the module for a display of 12 mA on the ammeter or 0 mV on the instrument display (HI 8615L only). This sets the zero point for the transmitter.

12 13

• Connect the ORP electrode to the transmitter and immerse the tip of the electrode into a beaker of HI 7020 ORP calibration solution, and check that the ammeter reading lies between 13.6 and 14.2 mA for HI 8615 or the instrument reading is between 200 and 275 mV at 25°C (HI 8615L).

• If the reading lies outside this range, adjust the slope adjustment trimmer on the transmitter for a reading just within this range.

The unit is now calibrated.

A complete calibration of the transmitter module is advised periodically.

This calibration procedure requires the HI 8427 or the HI 931001 pH and ORP simulator to simulate the ORP electrode.

HI 8427 or HI 931001 produce a known signal into the system so that the faults of the system can be isolated.

• Connect the ORP electrode to the module and immerse the tip of

the electrode into the beaker of HI 7020 ORP solution and check that the ammeter reading lies between 13.6 and 14.2 mA for HI 8615,

or the instrument reading is between 200 and 275mV

at 25°C (HI 8615L only).

• Connect the ORP transmitter to the simulator.

• Set the simulator to 0 mV and adjust the offset trimmer to read 12 mA on the ammeter or 0 mV on the HI 8615L display.

• Set the simulator to 350 mV and adjust the slope trimmer to read 14.8 mA for HI 8615 on the ammeter or 350 mV on the

HI 8615L

display.

• Only if the reading lies outside this range, adjust the slope adjustment trimmer on the transmitter to reflect a reading within this range.

FOR HI8615L ONLY

The HI 8615L are factory calibrated, and the displayed values are referenced to the 4-20 mA loop current. Under normal application, adjustment on this module may not be necessary. If routine check is required, the following procedures shall be performed.

• Follow the above procedure for HI 8615

• Simulate a 12.00 mA loop current for the transmitter (i.e. 0 mV at Electrode input) and check display reading.

• Simulate a 20.00 mA loop current for the transmitter (e.g. +1000 mV for HI 8615L at Electrode input) and check display reading.

(see page 13).

14 15

Please note:

HI 8615 or HI 8615L

-1000 mV = 4 mA

1000 mV = 20 mA

350 mV = 14.8 mA 200 mV = 13.6 mA 275 mV = 14.2 mA

0 mV = 12 mA

1 mV = 12.008 mA

ELECTRODE CONDITIONINGELECTRODE CONDITIONING

ELECTRODE CONDITIONING

ELECTRODE CONDITIONINGELECTRODE CONDITIONING

& MAINTENANCE& MAINTENANCE

& MAINTENANCE

& MAINTENANCE& MAINTENANCE

Note: When the HI 8615

with the Hanna new HI 8512 indicator or HI 8720 controller, the calibration can also be performed on the indicator/ controller. In this case slight adjustment can be made on the indicator/controller even if the whole system calibration is advised, always starting from the transmitter.

and HI 8615L

are used in conjunction

PREPARATION PROCEDURE

Remove the protective cap. DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed

with water. During transport tiny bubbles of air may have formed inside the glass

bulb. The electrode cannot function properly under these conditions. These bubbles can be removed by "shaking down" the electrode as you would do with a glass thermometer.

If the bulb and/or junction are dry, soak the electrode in HI 70300 storage solution for at least one hour.

16 17

For refillable electrodesFor refillable electrodes

For refillable electrodes

For refillable electrodesFor refillable electrodes

If the fill solution (electrolyte) is more than 1cm (½") below the fill hole, add HI 7082 3.5M KCl electrolyte solution for double junction or HI 7071 3.5M KCl+AgCl electrolyte solution for single junction electrodes. For a faster response unscrew the fill hole screw during measurements.

®®

For AmpHelFor AmpHel

For AmpHel

For AmpHelFor AmpHel

®®

electrodes electrodes

electrodes

electrodes electrodes

If the electrode does not respond to pH changes, the battery is run down and the electrode should be replaced.

MEASUREMENT

Rinse the electrode tip with distilled water. Immerse the tip (4 cm / 1½") in the sample and stir gently for

approx. 30 seconds. For a faster response and to avoid cross contamination of the samples,

rinse the electrode tip with a few drops of the solution to be tested, before taking measurements.

STORAGE

To minimize clogging and assuring a quick response time, the glass bulb and the junction should be kept moist and not allowed to dry out. Replace the solution in the protective cap with a few drops of

HI 70300

storage solution or, in its absence, filling solution (HI 7071

for single junction or HI 7082 for double junction electrodes). Follow the Preparation Procedure above before taking measurements.

Note: NEVER STORE THE ELECTRODE IN DISTILLED WATER OR DRY.

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connectors must be perfectly clean and dry. If any scratches or cracks are present on the electrode body, replace the electrode. Rinse off any salt deposits with water.

For refillable electrodesFor refillable electrodes

For refillable electrodes

For refillable electrodesFor refillable electrodes

Refill it with fresh electrolyte (HI 7071

for single junction or HI 7082

for double junction electrodes). Allow the electrode to stand upright for 1 hour.

Follow the Storage Procedure above.

CLEANING PROCEDURE

• General Soak in Hanna HI 7061

general cleaning solution

for approximately 1 hour.

Removal of films, dirt or deposits on the membrane/junction:

• Protein Soak in Hanna HI 7073 protein cleaning solution

for 15 minutes.

• Inorganic Soak in Hanna HI 7074 inorganic cleaning solution

for 15 minutes.

• Oil/grease Rinse with Hanna HI 7077 Oil & Fat cleaning

solution.

IMPORTANT: After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water, drain and refill the reference chamber with fresh electrolyte, (not necessary for GEL filled electrodes) and soak the electrode in HI70300 storage solution for at least 1 hour before taking measurements.

TROUBLESHOOTING

Evaluate your electrode performance based on the following.

••

• Noise (Readings fluctuate up and down) could be due to:

••

- Clogged/Dirty Junction: refer to the Cleaning Procedure

-above.

- Loss of shielding due to low electrolyte level (in refillable

-electrodes only): HI 7071 for single junction or HI 7082 for double junction electrodes.

••

• Dry Membrane/Junction: soak in HI 70300 storage solution for

•• at least one hour.

••

• Drifting: soak the electrode tip in warm Hanna solution HI 7082

•• for one hour and rinse the tip with distilled water. Refill with fresh HI 7071 for single junction electrodes and HI 7082 for double junction electrodes.

••

• Low Slope: refer to the Cleaning Procedure above.

••

• No Slope:

••

check the electrode for cracks in glass stem or bulb and

replace the electrode.

••

• Slow Response/Excessive Drift:

••

soak the tip in Hanna HI 7061

cleaning solution for 30 minutes, rinse thoroughly in distilled water and then follow the Cleaning Procedure above.

18 19

TEMPERATURE-RESISTANCE CORRELATIONTEMPERATURE-RESISTANCE CORRELATION

TEMPERATURE-RESISTANCE CORRELATION

TEMPERATURE CORRELATIONTEMPERATURE CORRELATION

TEMPERATURE-RESISTANCE CORRELATIONTEMPERATURE-RESISTANCE CORRELATION

TEMPERATURE CORRELATION

TEMPERATURE CORRELATIONTEMPERATURE CORRELATION

FOR FOR

FOR

FOR HANNA FOR HANNA

FOR FOR

FOR HANNA

FOR HANNA FOR HANNA

The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes more time for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at temperatures below 25 °C (77 °F).

Since the resistance of the pH electrode is in the range of 50-200 Mohm, the current across the membrane is in the pico Ampere range. Large currents can disturb the calibration of the electrode for many hours. For these reasons high humidity environments, short circuits and static discharges are detrimental for a stable pH reading. The pH electrode's life also depends on the temperature. If constantly used at high temperatures, the electrode life is drastically reduced.

H SENSITIVE GLASSH SENSITIVE GLASS

H SENSITIVE GLASS

H SENSITIVE GLASSH SENSITIVE GLASS

H SENSITIVE GLASS

H SENSITIVE GLASSH SENSITIVE GLASS

Alkaline Error

High concentrations of sodium ions interfere with readings in alkaline solutions. The pH at which the interference starts to be significant depends upon the composition of the glass. This interference is called alkaline error and causes the pH to be underestimated. Hanna's glass formulations have the indicated characteristics.

Sodium Ion Correction for the Glass at 20-25 ºC (68-77°F) Concentration pH Error

0.1 Mol L-1 Na

1.0 Mol L-1 Na

13.00

13.50

14.00

12.50

13.00

13.50

14.00

0.10

0.14

0.20

0.10

0.18

0.29

0.40

Typical Electrode Life

Ambient Temperature 1 – 3 years 90 ºC Less than 4 months 120 ºC Less than 1 month

20 21

INSTALLATION PROCEDURE AND EXAMPLESINSTALLATION PROCEDURE AND EXAMPLES

INSTALLATION PROCEDURE AND EXAMPLES

INSTALLATION PROCEDURE AND EXAMPLESINSTALLATION PROCEDURE AND EXAMPLES

The HI 8614 family and HI 8615 family transmitters may be wall mounted in any convenient location near the measurement point. To minimize thermal drift due to extreme temperature fluctuations during the measurement process, particularly if the measurement is conducted outdoors, it is best to protect the transmitter in an enclosed casing.

General Installation Procedure

For most industrial application involving long term monitoring and control, it is also recommended to use tank electrode holders (HI6050 or HI6051) to protect the pH electrode and the temperature probe from contamination by the test solution.

Note: HI 8614, HI 8614L will be used with the new instruments

HI 8510, HI 8710 and HI 8711 HI 8615, HI 8615L will be used with the new instruments

HI 8512 and HI 8720

Monitoring the pH/ORP with Panel Mounting pH (HI 8510)/ORP

(HI 8512) Indicator

Controlling the pH/ORP with an Industrial Regulator

Monitoring and Controlling the pH/ORP with Panel Mounting

Indicator/Regulator and Dosage Control of either Acid or Base

Controlling the pH / ORP with a recorder

22 23

Monitoring and Controlling the pH with (HI 8711) Panel

Mounting Indicator/Regulator with Independent Dosage Control

for Acid and Base

ACCESSORIESACCESSORIES

ACCESSORIES

ACCESSORIESACCESSORIES

pH CALIBRATION SOLUTIONS

HI 7004M pH 4.01 buffer solution, 230 mL HI 7004L pH 4.01 buffer solution, 500 mL HI 7006M pH 6.86 buffer solution, 230 mL HI 7006L pH 6.86 buffer solution, 500 mL HI 7007M pH 7.01 buffer solution, 230 mL HI 7007L pH 7.01 buffer solution, 500 mL HI 7009M pH 9.18 buffer solution, 230 mL HI 7009L pH 9.18 buffer solution, 500 mL HI 7010M pH 10.01 buffer solution, 230mL HI 7010L pH 10.01 buffer solution, 500 mL

ORP SOLUTIONS

HI 7020M 200-275 mV test solution, 230 mL HI 7020L 200-275 mV test solution, 500 mL HI 7091M Reducing pretreatment solution, 230 mL HI 7091L Reducing pretreatment solution, 500 mL HI 7092M Oxidizing pretreatment solution, 230 mL HI 7092L Oxidizing pretreatment solution, 500 mL

ELECTRODE MAINTENANCE SOLUTIONS

HI 70300M Storage solution, 230 mL HI 70300L Storage solution, 500 mL HI 7061M General cleaning solution, 230 mL HI 7061L General cleaning solution, 500 mL HI 7073M Protein cleaning solution, 230mL HI 7073L Protein cleaning solution, 500mL HI 7074M Inorganic cleaning solution, 230mL HI 7074L Inorganic cleaning solution,500mL HI 7077M Oil & Fat cleaning solution, 230 mL HI 7077L Oil & Fat cleaning solution,500 mL HI 7071 3.5M KCl+AgCl electrolyte solution, 4 x 50mL bottle,

for single junction electrodes

HI 7072 1M KNO3 electrolyte solution, 4 x 50 mL bottle HI 7082 3.5M KCl electrolyte solution, 4 x 50 mL bottle, for

double junction electrodes

24 25

pH ELECTRODES

HI 1090T Screwcap PG13.5 connector, double junction, glass

body

HI 1210T Screwcap PG13.5 connector, double junction, plas-

tic body

HI 1110S Screw connector, single junction, glass body HI 1130B/3 BNC connector, 3 m (9.9') cable, single junction, glass

body

HI1110S HI1130B/3

HI 1110T Screwcap PG13.5 connector, double junction, glass

body

HI 1114S Screw connector, double junction plastic body HI 1134B/3 BNC connector, 3 m (9.9') cable, double junction

plastic body

HI1114S HI1134B/3

HI 1115S Screw connector, single junction, glass body HI 1135B/3 BNC connector, 3 m (9.9') cable, single junction,

glass body

HI 1910B BNC connector, 1 m (3.3') cable, double junction,