EUTECH INSTRUMENTS WATERPROOF PHSCAN BNC PH TESTER Manual de usuario

Microprocessor based

pH Tester that floats!

68X247780 11/01 Rev 0

Open this booklet for calibration/testing/

maintenance instructions.

Changing Batteries:

1. Open battery compartment lid (with

attached lanyard

loop).

2. Remove old

batteries; replace

with fresh ones.

Note polarity

(shown in battery)

compartment and in picture at right).

3. Recalibrate tester after battery change.

Error Messages:

bATWeak batteries – replace

Er1 Wrong or bad buffer value, or electrode

is failing.

Or,Ur Over range / under range signal, or

electrode is failing.

Warranty:

The waterproof pHScan BNC is warranted

against defects in materials and workmanship

for a period of 24 months from the date

of purchase. If repair, adjustment or

replacement is necessary and has not been

the result of abuse or misuse within the

warranty period, please return the tester –

freight pre-paid – and correction will be made

without charge. Out of warranty products will

be repaired on a charge basis.

Return of Items:

Authorization must be obtained from your

Distributor before returning items for any

reason. When applying for authorization,

please include information regarding the

reason the item(s) are to be returned. Note:

We reserve the right to make improvements

in design, construction and appearance of

products without notice. Prices are subject to

change without notice.

keypad

–+

Waterproof pHScan BNC

Microprocessor-based Pocket pH Tester

Connecting your electrode:

To connect the tester to your electrode, align the

posts of the tester's BNC connector with the slots

on the electrode connector. Push together and twist

the electrode connector 1/2 turn until it clicks into

place.

Calibration:

Calibration should be done regularly, typically

every day that the tester is used. You can calibrate

up to three point. Choose buffer sets as described

above right.

1. Press ON/OFF button to switch unit on.

2. Dip electrode about 2 cm into buffer.

3. Press CAL button to enter Calibrate (CAL)

mode. 'CAL' flashes on the display. Then a

pH value close to pH buffer value will flash

repeatedly.

4. After at least 3 minutes, press

the HOLD/CON button to confirm

calibration. The display will show

'CO' and then switch to the buffer

value reading.

5. Repeat with other buffers if

necessary. Rinse electrode in tap

water before dipping into next buffer.

Calibration Troubleshooting:

Failure to press HOLD/CON to

confirm calibration (step 4 above).

Pressing the CAL button will resume

measuring mode but will not enter

the calibration value.

Insufficient sampling time. If the

tester does not have a long enough

exposure to the buffer, a stable

calibration point will not be reached.

Wait at least 3 minutes before

pressing HOLD/CON.

Failure to re-hydrate the electrode. A

dry electrode will give fluctuating

reading while it re-hydrates in a buffer,

causing errors.

Buffer Set selections:

To choose USA (pH 4.01, 7.00, 10.01) or NIST

(pH 4.01, 6.86, 9.18) buffers:

1. With tester off, hold HOLD/CON key while

pressing ON/OFF key.

2. Press HOLD/CON key again.

3. Press CAL key to toggle between USA and NIST

buffer sets.

4. Press HOLD/CON to confirm.

pH Testing:

1. Remove cap or storage bottle from the

electrode and press the ON/OFF button to

switch tester on.

2. Dip the electrode about 2 cm into the test

solution. Stir once and let the reading stabilize.

3. Note the pH or press HOLD/CON button to

freeze the reading. Press HOLD/CON again to

release the reading.

4. Press ON/OFF to turn off tester. If you do not

press a button for 8.5 minutes the tester will

automatically shut off to conserve batteries.

Instrument Maintenance:

• Rinse the electrode with tap water or electrode

storage solution after each measurement.

• Periodic soaks in warm pH 4 buffer will help

remove contaminants.

• When finished using electrode, fill electrode cap

with tap water or electrode storage solution and

replace cap.

• All push button operation

• Displays measured units for clarity

• Fast, stable, repeatable readings

• Available through authorized distributors

WP pHScan BNC

Range 0.00 to 14.99 pH

Resolution 0.01 pH

Accuracy ±0.02 pH

Calibration up to 3 points

(pH 4.01; 7.00; 10.01 or

4.01; 6.86; 9.18)

Operating temperature: 32 to 122 °F/0 to

50 °C Special Functions: On/Off, HOLD;

CA (Calibration); CO (Confirm display); Auto-

buffer recognition; auto-shutoff after

8.5 min. nonuse. Dimensions: 6.5 "L x 1.5"

dia. (165 x 38mm) Weight: 3.25 oz (90 gm)

Power: four 1.5V alkaline batteries (included).

250 hours continuous use.

water quality testing •pools •spas •aquariums

•aquaculture •hydroponics •ecology studies

•water and wastewater treatment •boilers •

steam generators •car washes •sanitation

plants •labs •and more!

Applications

Specifications

Manufactured By:

Eutech Instruments Pte Ltd

Blk 55, Ayer Rajah Crescent,

#04-14/24, Singapore 139949

Tel: (65) 778 6876 Fax: (65) 773 0836

E-Mail: [email protected]

Web-Site: http://www.eutechinst.com

Lanyard connection

68X247843 11/01 Rev 0

Choose cabled or direct

connect electrodes

Twist-off battery

compartment

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