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Instruction Manual COMPACT CONDUCTIVITY METER B - 771 CODE:GZ0000297065D...
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Quick Operation Guide This quick operation guide introduces the basic operations. Refer to the respective chapters for further information. Electrode Surface Treatment ① Perform this before the first use and after a long storage. * ① Put some drops of the moistening solution ②...
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④ Measurement ① Pour some drops of sample. ② When lights up, the measurement is completed. To lock the measured value, press the MEAS button. ⑤ After Use Clean the sensor with water, and then turn OFF the power. Close the protection cover before storage. Make sure to store the sensor without any moisture.
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Preface This manual describes the operation of the COMPACT CONDUCTIVITY METER, B-771. Be sure to read this manual before using the product to ensure proper and safe operation of the instrument. Also safely store the manual so it is readily available whenever necessary. Product specifications and appearance, as well as the contents of this manual are subject to change without notice.
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Regulations EU Regulations Conformable standards This equipment conforms to the following standards: EMC: EN61326-1 Class B, Portable test and measurement equipment RoHS: EN50581 9. Monitoring and control instruments Warning: This product is not intended for use in industrial environments.
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Authorised Representative in EU HORIBA UK Limited 2 Dalston Gardens, Stanmore, Middx HA7 1BQ, UK FCC Rules Any changes or modifications not expressly approved by the party responsible for compliance shall void the user's authority to operate the equipment.
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Contents Introduction..................1 Items in package ................. 1 Consumable parts sold separately ..........1 Part Names and Functions ..............2 Handling Precautions................4 Basic Handling..................6 Inserting/removing batteries ............6 Attaching/detaching the sensor ........... 7 Power ON/OFF ................8 Storage ..................8 Electrode surface treatment ............
Introduction COMPACT CONDUCTIVITY METER B-771 incorporates HORIBA original flat sensor and enables accurate measurement of conductivity from a single drop of a sample. B-771 can display converted salt concentrations and converted TDS (total dissolved solids) as well as conductivity. Items in package Meter model B-771 Sensor...
Part Names and Functions Name Description Place a sample in this cell to measure it with the electrode Measurement cell located on the bottom of the cell. Protection cover Protects the measurement cell and flat sensor. Lithium batteries CR2032 (2) Switches the calibration mode to the measurement mode, activates/deactivates the reading locking function in the MEAS switch...
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Name Description Blinks until the measured value is stabilized, and lights MEAS icon steadily when the measured value is settled, while the reading locking function is active. Blinks during calibration, and lights steadily when calibration 10 CAL icon is finished. Lights up when the batteries are low and need to be 11 Battery alarm icon changed.
Handling Precautions Meter and sensor The sensor is a consumable part. If it becomes damaged or its performance deteriorates, replace it with a new one (the sensor cannot be repaired). Do not swing the meter and sensor by holding a strap. ...
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Do not measure samples such as the following, since they may damage the sensor or shorten its life: Organic solvents, oils, adhesives, cement, alcohols, concentrated acid (0 pH to 2 pH), concentrated alkaline (12 pH to 14 pH) or solid materials. ...
Basic Handling Inserting/removing batteries Note Turn OFF the meter before inserting/removing batteries. Always replace both batteries at once. Do not use old and new batteries together. Inserting the batteries Slide both batteries into battery case as shown. Be sure to use two CR2032 Battery batteries, and put them with the plus...
Attaching/detaching the sensor Note Turn OFF the meter before attaching/detaching the sensor. If the meter is turned ON with the sensor detached, the battery alarm may light up. In this case, turn OFF the meter and attach the sensor, and then turn ON the meter again.
Power ON/OFF Power ON Press and hold the ON/OFF switch for over 2 seconds. The power is turned ON, and the meter model number is displayed on the LCD. Power OFF Press and hold the ON/OFF switch for over 2 seconds.
Calibration About calibration Calibration points The following 2-type calibrations are available. One-point calibration: calibration at 1.41 mS/cm Two-point calibration: calibration at 1.41 mS/cm and 12.9 mS/cm (sold separately) “One-point calibration” is set by default. Refer to the instructions on page 18 for switching the calibration points. The calibration point setting and calibration result are saved after the meter is turned OFF.
One-point calibration Set “One-point calibration” (refer to page 18). Open the protection cover and put some drops Protection of the 1.41 mS/cm standard solution into the cover measurement cell. Washing the sensor with the standard solution beforehand may provide more accurate calibration. Close the protection cover and press the CAL switch for over 2 seconds.
Two-point calibration Set “Two-point calibration” (refer to page 18). Open the protection cover and put some drops Protection of the 1.41 mS/cm standard solution into the cover measurement cell. Washing the sensor with the standard solution beforehand may provide more accurate calibration. Close the protection cover and press the CAL switch for over 2 seconds.
Measurement Sample setting The following 3-type sampling setting methods are available. Drop: for a small-amount sample Immersion: for a large-amount sample Scooping: for sampling a part of a sample Note Although this product is waterproof, avoid immersing it completely.
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Immersion Open the protection cover. Immerse the sensor into the sample and stir gently 2 or 3 times. Protection cover Scooping Open the protection cover. Immerse the sensor into the sample and stir gently 2 or 3 times, and then scoop up some of the sample with the sensor.
Measurement operations Without using the reading locking function Confirm that the meter is in the measurement mode, and set a sample on the sensor. Read the displayed value when appears. With using the reading locking function Confirm that the meter is in the measurement mode, and set a sample on the sensor.
Special Setting Mode The special setting mode enables the meter setting and special operations. To enter the special setting mode, press and hold the MEAS switch for over 3 seconds in the measurement mode. All the LCD items appear, then the meter enters the special setting mode.
Measurement unit setting Used to select measurement unit. Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode. All items appear on the LCD, and then the display changes as shown above.
Temperature display mode Displays the ambient temperature measured with the internal temperature sensor. The measurement accuracy is unwarranted. Use the value only as a guide. Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode.
Calibration point setting Used to select the calibration points. Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode. All items appear on the LCD, and then the dis- play changes as shown right. Press the CAL switch until appears.
Initialization mode All settings and all calibration data are reset to the factory default values. Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode. All items appear on the LCD, and then the dis- play changes as shown right.
Appendix Frequently asked questions Question Answer It depends on measurement samples and conditions. How long is the It should be approx. 1500 measurements for typical samples. sensor's service Note that sensor deterioration and failure are not included in life? the warranty. Measure the provided standard solution to check how much How can I check the the measured conductivity value drifts from the specified...
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Question Answer The power is not Check that the batteries are inserted properly. If the batteries turned ON. are low, replace them both with new ones at the same time. The internal IC in the meter may defect. After Er1 is displayed, the meter enters the initialization mode automatically and Init and appear.
Specifications Model B-771 Measurement principle 2 AC bipolar method Minimum sample volume 0.12 mL or more Conductivity 0 mS/cm to 19.9 mS/cm, 0 S/m to 1.99 S/m Measurement Salt 0% to 1.1% range 0 ppm to 9900 ppm Display range 0 mS/cm to 199 mS/cm (0 S/m to 19.9 S/m) (1) 0 S/cm to 199 S/cm: 1 S/cm Range and...
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31, Miyanonishi-cho, Kisshoin Minami-ku, Kyoto 601-8306, Japan http://www.horiba-adt.jp For any questions regarding this product, please contact your local agency, or inquire from the following website. http://global.horiba.com/contact_e/index.htm...