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Instruction Manual COMPACT pH METER B - 71X CODE:GZ0000297059D...
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Quick Operation Guide This quick operation guide introduces the basic operations. Refer to the respective chapters for further information. Turn ON ① Press the ON/OFF button over 2 seconds to turn ON the meter. Perform calibration at least once a day Calibration ② ...
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Measurement ③ ① Pour some drops of sample. ② Close the light shield cover. ③ When lights up, the measurement is completed. To lock the measured value, press the MEAS button. After Use ④ Clean the sensor with water, and then turn OFF the power.
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Preface This manual describes the operation of the COMPACT pH METER, B-71X. 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 Calibration ....................
Introduction The COMPACT pH METER B-711, B-712, and B-713 incorporate HORIBA original flat sensor and enables accurate pH measurement from a single drop of a sample. Items in package Meter model B-711 B-712 B-713 Sensor S010 B-711 Meter B-712 B-713 Storage case Batteries CR2032...
Part Names and Functions Name Description Place a sample on this sensor. This sensor consists of a Flat sensor liquid junction (A) and glass membrane (B). Both A and B must be covered with the sample. Shields the sensor from light, which affects the sensor. Close the light shield cover before starting measurement.
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Name Description Strap eyelet A strap can be attached here. 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.
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 surfactants. ...
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 available calibration points depend on the meter models. One-point calibration at pH 7: B-711, B-712, B-713 One-point calibration at pH 4: B-712, B-713 Two-point calibration: B-712, B-713 “One-point calibration at pH 7” is set by default. Refer to the instructions on page 19 for switching the calibration points (for B-712 and B-713 only).
One-point calibration at pH 7 (B-711/B-712/B-713) (For B-712 and B-713 only) Set “One-point calibration at pH 7” (refer to page 19). Open the light shield cover and put some drops Light shield of the pH 7 standard solution on the flat sensor cover to cover the entire flat sensor.
Two-point calibration (B-712/B-713) Set “Two-point calibration” (refer to page 19). Open the light shield cover and put some drops Light shield of the pH 7 standard solution on the flat sensor cover to cover the entire flat sensor. Washing the sensor with the standard solution beforehand may provide more accurate calibration.
Measurement Sample setting The following 4-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 Sampling sheet: for a sample containing tiny particles Note Although this product is waterproof, avoid immersing it completely.
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Immersion Open the sliding cap on the light shield cover. Immerse the sensor into the sample and stir gently 2 or 3 times. Sliding cap Scooping Open the sliding cap on the light shield 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.
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Sampling sheet If tiny particles are contained in a sample, such as an extract from soil, the particles influence measurement results. Use the sampling sheet holder cover (part No. 3200459736) and sampling sheet B (part No. 3200053858) sold separately to counteract the influence. Replace the light shield cover with the sampling sheet holder cover.
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.
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"7.6 Software version display mode" (page 22) The current software version is displayed. CAL switch* Returns to the display for temperature display mode.
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 (only for B-712/B-713) 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.
Display digit setting (only for B-712/B-713) Used to select the display digit (One or two decimal places) for measured value. The initial setting is one decimal place. Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode.
Sensor voltage display mode Displays the voltage output from the sensor. Use this function to evaluate the sensor performance or to create your own calibration line or curve. Press and hold the MEAS switch for over 3 seconds in the measurement mode to enter the special setting mode.
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. For B-712 and B-713, perform two-point calibration.
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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-711 B-712 B-713 (US only) Measurement Glass electrode method principle Minimum sample 0.1 mL or more volume Measurement 2 pH to 12 pH range Display range 0 pH to14 pH Resolution 0.1 pH 0.1 pH or 0.01 pH (selectable) (valid digits) Calibration One-point...
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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...
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