Emaux ORP Meter

Product Overview

Congratulations on your purchase of this pen type ORP meter. Please read this manual completely before using the meter. It is recommended to soak the electrode for at least 30 minutes before use to clear up any lazy effect or to make the ORP electrode wet.

Description of Meter: The device is a pen-style ORP meter featuring a digital display and buttons. The display shows the ORP reading, a 'HLD' indicator for data hold, and a battery symbol. The meter is labeled with 'ORP' and '8552'.

1.1 Features

• IP65 Waterproof housing.
• Large display for easy reading.
• Data hold function to freeze readings.
• Pen size, easy to fit in a pocket.
• Low battery indicator.
• Auto power off (Sleep function).
• Powered by 4 x LR44 batteries.

1.2 Material Supplied

This package contains:

• The meter x 1
• LR44 button batteries x 4
• Operation manual
• Color box or plain box

2. POWER SUPPLY

The meter is powered by 4 x LR44 batteries.

Check the battery status when:

• Using the meter for the first time.
• The battery symbol appears on the LCD.
• The meter cannot power on.

To install the batteries:

1. Turn off the meter.
2. Loosen the battery cover in a counter-clockwise direction. (Do not discard the black washer!)
3. Replace the old batteries with four new LR44 button cells.
4. Ensure the batteries are correctly placed with the proper polarity.
5. Replace the battery cover and washer, then tighten it in a clockwise direction.

3. LCD Display and KEYPAD

The main display shows the measured ORP reading in millivolts (mV). The 'HLD' indicator appears when the data is held.

Keypad Description: The meter has buttons for power and data hold functions. The [power button] is used to turn the meter on/off. The [hold button] is used to freeze current readings.

4. OPERATION

1. Remove the probe cover from the meter to expose the electrode. It is normal to find white crystals present on the cap or electrode assembly.
2. Dip the electrode into the test solution. Press the [power button] to power on the meter and stir the solution to get a stable reading.
3. Press the [hold button] to freeze current readings. The text "Hold" will appear on the LCD. Press the [hold button] again to release the hold mode.
4. Turn off the meter by pressing the [power button].
5. After finishing the measurement, clean the electrode, replace the cap, and store the meter in a temperature range of 0-50 °C.

5. AUTO POWER OFF (SLEEP FUNCTION)

This meter will automatically shut off after 20 minutes of inactivity. To operate for a longer time, you can disable the sleep mode.

To disable the auto power off: Before powering on, press and hold the [power button] and [hold button] simultaneously until an 'n' appears on the screen. Release the keys to return to normal mode.

Note: The disable sleep mode setting is invalid after every power off.

6. MAINTENANCE

Preparation:

Before use, remove the probe cover, soak the electrode in distilled water, rinse it, then take it out and dry it. The electrode is now ready for use.

Note: Do not rub the sensing element forcibly.

Test the electrode:

1. Place the electrode in a buffer solution of pH 7.00 with saturated quinhydrone. After stirring, the mV reading (E1) should be 86 ± 15mV.
2. Rinse the electrode with distilled water, then place it in a buffer solution of pH 4.01 with saturated quinhydrone. After stabilizing, record the mV meter reading (E2). The difference between E1 and E2 should be 165mV.

Storage:

1. Rinse the electrode with distilled water during the interval of each use.
2. Keep the ORP electrode wet. If not in use for a long period, it should be rinsed and stored in the provided soaking bottle, which is filled with a soaking solution.

7. TROUBLESHOOTING

Power on but no display:

1. Ensure the power button is pressed for more than 1 second.
2. Check that the batteries are in place, making good contact, and have the correct polarity.
3. Replace with new batteries and try again.
4. Remove the batteries for one minute and then reinsert them.

Slow response:

Clean the probe by immersing the electrode in tap water for 10-15 minutes, then rinse thoroughly with distilled water or use a general-purpose electrode cleaner.

LCD display E02, E03:

These codes indicate the reading is out of the ORP measuring range. Check the normal condition first. If the display continues to show E02 or E03, the electrode may be out of order.

8. SPECIFICATION

9. TERMS OF THE WARRANTY

As the original purchaser of this equipment, purchased from Emaux Water Technology Co. Ltd through an Authorized International Distributor or Dealer, Emaux warrants its products to be free from defects in materials and workmanship under normal use during the warranty period. The warranty period begins on the day of purchase and extends only to the original purchaser. It is not transferable to anyone who subsequently purchases the product from you. It excludes all expendable parts.

During the warranty period, an Emaux authorized reseller will repair or replace defective parts with new parts or, at the option of Emaux, serviceable used parts that are equivalent or superior to new parts in performance.

This Limited Warranty extends only to products purchased from an Emaux authorized reseller. This Limited Warranty does not extend to any product that has been damaged or rendered defective:

• (a) as a result of accident, misuse, or abuse;
• (b) as a result of an act of God;
• (c) by operation outside the usage parameters stated herein;
• (d) by the use of parts not manufactured or sold by Emaux;
• (e) by modification of the product;
• (f) as a result of war or terrorist attack; or
• (g) as a result of service by anyone other than an Emaux authorized reseller or authorized agent.

EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, EMAUX MAKES NO OTHER WARRANTIES EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. EMAUX EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY. ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF THIS EXPRESS LIMITED WARRANTY.