Related Manuals for Hanna Instruments HI 8614
Summary of Contents for Hanna Instruments HI 8614
- Page 1 Instruction Manual HI 8614 • HI 8614L HI 8615 • HI 8615L pH and ORP Transmitters w w w. h a n n a i n s t . c o m...
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Page 2: Table Of Contents
WARRANTY 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. -
Page 3: Preliminary Examination
GENERAL 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. - Page 4 100 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.
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Page 5: Specifications Of Hi 8614 & Hi 8614L
SPECIFICATIONS OF HI 8614 & HI 8614L Range 4 to 20 mA / 0.00 to 14.00 pH Resolution 0.01 mA / 0.01 pH Accuracy (@25 °C/77 °F) ±0.02 mA / ±0.02 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... -
Page 6: Specifications Of Hi 8615 & Hi 8615L
SPECIFICATIONS OF HI 8615 & HI 8615L Range 4 to 20 mA / ±1000 mV Resolution 0.01 mA / 1 mV Accuracy (@25 °C/77 °F) ±0.02 mA / ±5 mV Calibration Offset: ±0.8 mA / ±100 mV Slope: ±0.8 mA / 90 to 110% Input Impedance Output 4-20 mA (isolated) -
Page 7: Terminal Board Connections
TERMINAL BOARD CONNECTIONS 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“... - Page 8 Electrode connection: connect the BNC of the cable to the BNC socket on 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“...
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Page 9: Ph Calibration With Automatic Temperature Compensation
CALIBRATION WITH AUTOMATIC TEMPERATURE COMPENSATION (HI 8614 family) INITIAL PREPARATION • Connect the pH electrode to the BNC socket. • Connect the temperature probe to the transmitter. Pour small quantities of pH 7.01 and pH 4.01 solution into two clean bea- kers. - Page 10 PROCEDURE • Disconnect the +ve supply cable from “+VE LOOP“ terminal and connect a 20 mA f.s. ammeter between the +ve cable and “+VE LOOP“ terminal. • 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;...
- Page 11 • 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.
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Page 12: Ph Calibration With Fixed Temperature Compensation
CALIBRATION WITH FIXED TEMPERATURE COMPENSATION (HI 8614 family) • Take the temperature of the buffer solutions using a Checktemp or a thermometer with a resolution of at least 1 °C. • Connect the appropriate resistor to the “TEMP. PROBE” terminals (see page 8) depending on the temperature of the calibration solution. -
Page 13: 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. - Page 14 • 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.
- Page 15 • 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).
- Page 16 Please note: HI 8615 or HI 8615L -1000 mV 4 mA 0 mV 12 mA 1000 mV 20 mA 350 mV 14.8 mA 200 mV 13.6 mA 275 mV 14.2 mA 1 mV 12.008 mA Note: When the HI 8615 and HI 8615L are used in conjunction with the Hanna new HI 8512 indicator or HI 8720 controller, the calibration can also be performed on the indicator/ controller.
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Page 17: Electrode Conditioning & Maintenance
ELECTRODE CONDITIONING & MAINTENANCE 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. - Page 18 For refillable electrodes If the fill solution (electrolyte) is more than 1 cm (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.
- Page 19 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: Soak in Hanna HI 7073 protein cleaning solution • Protein for 15 minutes. • Inorganic Soak in Hanna HI 7074 inorganic cleaning solution for 15 minutes.
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Page 20: Temperature Correlation For Ph Sensitive Glass
TEMPERATURE-RESISTANCE CORRELATION TEMPERATURE-RESISTANCE CORRELATION TEMPERATURE-RESISTANCE CORRELATION TEMPERATURE-RESISTANCE CORRELATION TEMPERATURE-RESISTANCE CORRELATION TEMPERATURE CORRELATION FOR HANNA FOR HANNA FOR HANNA p p p p p H SENSITIVE GLASS FOR pH SENSITIVE GLASS H SENSITIVE GLASS H SENSITIVE GLASS FOR HANNA FOR HANNA H SENSITIVE GLASS H SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature. - Page 21 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.
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Page 22: Installation Procedure And Examples
INSTALLATION 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. - Page 23 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...
- Page 24 Monitoring and Controlling the pH with (HI 8711) Panel Mounting Indicator/Regulator with Independent Dosage Control for Acid and Base...
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Page 25: Accessories
ACCESSORIES 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... - Page 26 pH ELECTRODES HI 1090T Screwcap PG13.5 connector, double junction, glass body HI 1110S Screw connector, single junction, glass body HI 1130B/3 BNC connector, 3 m (9.9') cable, single junction, glass body HI 1110S HI 1130B/3 HI 1110T Screwcap PG13.5 connector, double junction, glass body HI 1114S Screw connector, double junction plastic body...
- Page 27 HI 1210T Screwcap PG13.5 connector, double junction, plas- tic body HI 1910B BNC connector, 1 m (3.3') cable, double junction, plastic body, built-in amplifier HI 1911B BNC connector, 1 m (3.3') cable, double junction, plastic body, built-in amplifier HI 1912B BNC connector, 1 m (3.3') cable, double junction, plastic body, built-in amplifier HI 1912B/5...
- Page 28 ORP ELECTRODES HI 2930B/5 BNC connector, 5 m (16.5') cable, Pt, plastic body, built-in amplifier HI 3110S Screw-type connector, Pt, glass body HI 3130B/3 BNC connector, 3 m (9.9') cable, Pt, glass body HI 3110T Screwcap PG13.5 connector, Pt, glass body HI 3115S Screw-type connector, side-arm, Pt, glass body HI 3135B/3...
- Page 29 HI 3932B/5 BNC connector, 5 m (16.5') cable, Pt, plastic body, built-in amplifier HI 4110S Screw-type connector, Au, glass body HI 4130B/3 BNC connector, 3 m (9.9') cable, Au, glass body HI 4932B/5 BNC connector, 5 m (16.5') cable, Au, plastic body, built-in amplifier...
- Page 30 EXTENSION CABLES FOR SCREW-TYPE ELECTRODES ONLY (SCREW TO BNC CONNECTOR) HI 7855/1 Extension cable 1 m (3.3') long HI 7855/3 Extension cable 3 m (9.9') long HI 7855/5 Extension cable 5 m (16.5') long HI 7855/10 Extension cable 10 m (33') long HI 7855/15 Extension cable 15 m (49.5') long OTHER ACCESSORIES...
- Page 31 24 VAC or 60 VDC. To avoid damage or burns, do not perform any measurement in microwave ovens. Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
- Page 32 Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.com Local Sales and Customer Service Office Printed in ROMANIA MAN8614 12/14...