EXTECH INSTRUMENTS PH50 PH60 PH Waterproof Meter User Guide

Operation Specifications

User Guide

p H Measurements Model PH50 PH60 1. Remove the protective cap and the electrode cap Display Single LCD Dual LCD

p H Waterproof Meter 2. Insert the electrode into the sample. PH Range and Accuracy 2.0 to 12.0 0.0 to 14.0

3. Press the PWR key to turn the meter on and slowly stir until the reading settles. PH resolution/accuracy 0.1p H / ± 0.3p H 0.1p H / ± 0.2p H

Models PH50 & PH60

The decimal point will blink while the meter is measuring. Temperature Range — 32 to 122o F (0 to 50o C)

Description Temperature resolution/accuracy — 0.5o / ± 1.8o F / 1o C

p H Calibration (1, 2, or 3 points)

A two point calibration with a buffer of 7 plus 4 or 10 (whichever is nearest to the Automatic Temperature — Yes

Front Panel Controls expected sample value) is always recommended. A one point calibration (choose the Compensation

value closest to the expected sample value) is also valid. For best accuracy, always

1. Battery compartment cap Waterproof Meets IP67

calibrate at the sample temperature.

Power Four (4) LR44 button batteries

2. LCD Display (p H & Temperature for PH60,

1. Place the electrode into a buffer solution (4, 7, or 10) and momentarily press the

p H only for PH50) Auto power off After 20 minutes of inactivity

CAL key. Note: p H 7 should be calibrated first, then 4 and/or 10 p H.

Dimensions 6x1.5x0.9” (152x37x24mm); 2.3oz (65g)

3. HOLD /▲ button

2. If meter successfully recognizes the solution “CAL” and the p H value will appear

4. PWR (On/Off) button Optional Accessories

on the display in two seconds. Note: If the solution is more than 1p H off from the

• Tripak buffers pouches, 6 each of 4, 7 & 10 p H plus two rinsing solutions

5. Electrode 4, 7, or 10p H standard, the meter will assume an error and abort the calibration.

(Part Number: PH103)

6. CAL button “EN” will be displayed for one second and then the meter will return to normal

• Tripac buffer capsules, 10 each of 4, 7 and 10 p H (Part Number 650470)

operation.

7. Electrode cap with sponge

3. If the calibration buffer is another value other than 4, 7, or 10, such as 4.1, press • p H 4.01 buffer, pint, (Part Number PH4-P)

8. Protective cap

the HLD/▲ button to adjust the value to the correct reading. The adjustable

• p H 7.00 buffer, pint, (Part Number PH7-P)

range for 4p H is from 3.5 to 4.5. for 7p H is from 6.5 to 7.5. For 10p H is from 9.5 to

10.5. • p H 10.00 buffer, pint, (Part Number PH10-P)

4. When calibration is complete, the meter automatically saves the value, displays

Overview

“SA” and returns to normal operation mode after displaying “EN”. 5. For a two or three point calibration, repeat steps 1-4. Warranty

p H Overview

6. Note: Always turn the meter off and then on before calibrating to allow sufficient

p H is a unit of measure (ranging from 0 to 14p H) indicating the degree of acidity or EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of

time to complete the calibrations during one power cycle.

alkalinity of a solution. p H tests are the most commonly performed measurements in defects in parts and workmanship for one year from date of shipment (a six month

Changing the Displayed Temperature Units (Model PH60 only)

water analysis and reports the hydrogen ion activity of a solution which is an indicator of limited warranty applies on sensors and cables). If it should become necessary to

With the meter OFF, press and hold the PWR and CAL buttons until o F or o C appears in return the instrument for service during or beyond the warranty period, contact the

acidity or alkalinity. Solutions with a p H less than 7 are considered acidic, solutions with

the display. Press the HLD/▲ button to toggle between them. Select the preferred unit Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our

a p H higher than 7 are known as bases, and solutions with a p H of near 7 are neutral.

and then press CAL to save. “SA” will appear in the display for one second and then website at www.extech.com (click on ‘Contact Extech’ and go to ‘Service Department’

Getting Started to request an RA number). A Return Authorization (RA) number must be issued

return to normal operation.

• Before first use or after extended storage, soak the electrode (with its cap removed) in before any product is returned to Extech. The sender is responsible for shipping

a p H 4 solution for at least 30 minutes. Data Hold

charges, freight, insurance and proper packaging to prevent damage in transit. This

• White KCL crystals may be present in the cap. These crystals will dissolve in the soak Momentarily press the HLD/▲ button to freeze the current reading. The HOLD display

warranty does not apply to defects resulting from action of the user such as misuse,

or they can be simply rinsed with tap water. icon will appear along with the held reading. Momentarily press the HLD/▲ key to return

improper wiring, operation outside of specification, improper maintenance or repair, or

• Always calibrate close to the expected measurement value.

to normal operation. unauthorized modification. Extech specifically disclaims any implied warranties or

• A sponge is located in the electrode protective cap. Keep this sponge soaked with a p H

Auto Power Off Disable merchantability or fitness for a specific purpose and will not be liable for any direct,

4 solution to preserve Electrode life during storage.

indirect, incidental or consequential damages. Extech's total liability is limited to repair

The meter will shut off after 20 minutes to save battery life if no buttons are pressed. To

• Unless directed otherwise, a daily two point calibration is recommended to maintain

or replacement of the product. The warranty set forth above is inclusive and no other

accuracy and to verify the condition of the meter and electrode. disable this feature, with the meter off, press and hold the PWR and HLD/▲ buttons

warranty, whether written or oral, is expressed or implied.

simultaneously until an “n” appears for 1 second on the display. Release the buttons. Note: Turning the meter off will reactivate the Auto Power Off feature.

Support line (781) 890-7440

Battery Replacement

Technical support: Extension 200; E-mail: [email protected] Repair & Returns: Extension 210; E-mail: [email protected]

1. Remove the two screws from the battery compartment cap

Product specifications subject to change without notice

2. Replace the four (4) LR44 batteries observing polarity. For the latest version of this User’s Guide, Software updates, and other 3. Replace the battery compartment cap and secure with the screws

Up-to-the-minute product information, visit our website:

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