Thermo Fisher Scientific pH 1 User Manual

Batteries included

Specications

Range 0.0 to 14.0 pH Resolution 0.1 pH Accuracy ±0.1 pH

Calibration

Non-Volatile Memory

Hold Function Yes Auto-O 8.5 mins after last key press LCD Display 3½ digit with annunciator Power (4) A76 / LR44 batteries included Operating Temp. 0 to 50 ºC Ingress Protection IP67 rating ; waterproof Dimension

(LxWxH)/Weight

Applications

• Hydroponics • Agriculture • Aquaculture & Aquariums

• Pools & Spas • Education • Cooling Towers and more!

1-point (4.0, 7.0 or 10.0), auto-recognition. Calibration standard(s) sold separately

Yes

Tester: 16.3 x 4.5 x 3 cm ; 90 g Packed : 24.5 x 13.5 x 4.5 cm ; 137 g

Solutions For Water

Analysis

Aquaculture/Aquariums

0.0 to 14.0 pH

Please refer to inside for operating instructions

Eutech Instruments

www.eutechinst.com

Oakton Instruments www.4oakton.com

Part of Thermo Fisher Scientiﬁc

1 Year Warranty

Made in Singapore

35423-00

Pocket clip >

< Transparent cap for samples and storage

• Auto Buer Recognition

• Accurate Results

• Easy To Use

• Waterproof

68X461008 08/10 Rev A

Swimming Pools

Hydroponics/Agriculture

Operating Instructions

EcoTestr pH 1 Waterproof Pocket Tester

Conditioning Before First Use: Precipitation of the sensor electrolyte may cause white crystals to form around the cap. This is normal and does not aﬀect the tester’s performance.

1. Remove the transparent cap and add 20 mm of tap water or pH buﬀer (approximately ½ full)

2. Recap the EcoTestr and soak* for one hour (or less if sensor was recently hydrated)

3. Rinse the cap after use

4. The sensor is now activated and ready for use

Measurement:

1. Remove cap and press to turn on the tester

2. Dip sensor in at least 20 mm of test solution

3. Stir once and let the reading stabilize. Note the measured value

4. To hold reading, press . Screen ﬂashes HO once, then displays measurement with blinking unit (pH) to indicate that tester is in the hold mode. Press again to cancel hold mode ( HC)

5. Press to shut the tester oﬀ

Note: Tester automatically shuts oﬀ after 8.5 minutes of non-use to conserve batteries.

Calibration: The EcoTestr is factory calibrated. However, to ensure accuracy, regular calibration is recommended. Note: Calibration standard(s) sold separately.

1. Select pH 7.0 buﬀer for general testing; pH 4.0 for acidic and pH 10.0 for alkaline samples

2. Press to turn on the tester

3. Dip sensor in desired pH standard buﬀer, stir gently and wait for the value to stabilize

4. Press to begin the calibration. Display shows

CAL

momentarily, then blinks the

default reading

5. To accept the calibration, press . If successful, (

) is shown and after a few

seconds measurement is resumed

6. To abort calibration, press to escape (

ESC

)

Maintenance:

1. Rinse sensor with clean water after each use

2. In harsh samples, take readings quickly, then rinse sensor immediately to remove residues and prevent electrode contamination

Useful Notes:

1. To avoid cross contamination, rinse between samples and calibration standards with clean water

2. To maintain tester accuracy, calibrate at regular intervals as required

3. For long-term storage, ﬁll cap with 20 mm of storage solution (NOT de-ionized water) and replace cap*. This will keep sensor conditioned and ready for next use

4. Not recommended for prolonged use with solutions containing heavy metals, proteins, tris, or sulﬁdes which will clog the junction leading to slow response and eventual failure

* The tester cap is not leak-proof. Please keep tester upright during soaking.

Step 3

Slide out the cover

Battery

cover

Step 1

Slide in left hand thumb to clear the back catch

Figure 1: Removing battery cover to change batteries

Step 2

Slide in right hand thumb to clear the front catch

Changing Batteries:

1. To remove batteries, hold the tester on the left hand with the left thumb slide under the back clip of the cover. This will release the back catch

2. Next, hold the cover with your right hand, at the same time release the front catch with your right thumb. Slide up to remove the battery cover (Figure 1)

3. Replace old batteries with fresh ones. Note polarity as shown in battery compartment

4. No re-calibration is required after battery change. The tester’s non-volatile memory function retains calibration settings

Your EcoTestr includes (4) pre-installed 1.5V alkaline batteries. LR44 or A76 battery types are suitable and commonly available. Replace all (4) batteries together. Waiting too long to replace the batteries can lead to inaccurate readings and is the most common cause of problems.

Error Messages:

– Batteries are weak and need replacement

Err

– Wrong or bad buﬀer value (out of range) and/or the sensor is failing. Use

fresh buﬀer. Replace batteries. Note: when sensor fails, it cannot be replaced

Or/Ur

– Over or Under range signal; sensor is dry/contaminated/damaged/not

fully immersed

Reset Option: Reset option allows you to restore the calibration back to factory default settings.

1. Press to turn oﬀ tester

2. Press and hold , then press to turn the tester on. The display shows a ﬂashing

(reset)

3. Press again to conﬁrm reset (

) or press to escape (

ESC

) reset option

Warranty: This instrument is supplied with a warranty against manufacturing defects for a period of one year from date of purchase.

Tester & Accessories Ordering Information:

Eutech Order Code Oakton Order Code Description

ECOPHTEST1 35423-00 EcoTestr pH 1 ECPOUCH01 35624-45 Soft carrying case with belt-loop ECBU4BT 00654-00 pH 4.01 buﬀer solution, 480 ml bottle ECBU7BT 00654-04 pH 7.00 buﬀer solution, 480 ml bottle ECBU10BT 00654-08 pH 10.01 buﬀer solution, 480 ml bottle ECRE005 00653-04 Storage solution for pH sensor, 480 ml bottle ECDPCBT 00653-06 Sensor cleaning solution, 480 ml bottle