YSI pH10A User Manual [en, es]

EcoSense® pH10A pH/Temperature Pen

Operations Manual

EcoSense pH10A OVERVIEW

A. Description

1. Battery cap

2. Graphic LCD screen

3. Keypad

4. Belt clip (Do not remove screw.)

4. Electrode collar

5. Electrode & ATC assembly – outside o-ring on
electrode is yellow and inside o-ring is black.
(Electrode cap shown covering electrode.)

B. EcoSense pH10A Keypad Layout

Hold – On/Off key

Store key

Calibration key

Scroll key

INITIAL INSPECTION AND ASSEMBLY

Carefully unpack the instrument and accessories, and inspect for shipping damages. Notify
your local dealer or YSI immediately ([phone] or [e-mail]) of any
damages or missing parts. Save packing materials until satisfactory operation is confirmed.

BEFORE USING

A. Insert the Batteries

1. Remove the battery cap at the top of the unit.

2. Insert the set of batteries (included) ensuring correct polarities.

3. Securely replace battery cap.

B. Soak the Electrode

1. Remove the electrode cap covering the pH10A meter electrode.

2. Soak electrode in pH 4 buffer for 10 minutes before first use or after storage

.

OPERATION

A. Power ON/OFF

Press and hold “HOLD – On/Off” key for 3 seconds. The unit will turn on and enter the
“Measure Mode”. Press and hold “HOLD – On/Off” key again to turn off. The instrument has a
10 minute automatic shutoff.

B. Set Date and Time

1. Press and Hold “CAL” key until it enters “Date/Time Set Mode”.

2. Press “HOLD” key to select date or time parameters.

3. Press “STORE”

4. Press “CAL” key for 2 seconds to return to “Measure Mode”.

key to increase value or “SCROLL” key to decrease value.

C. Select Buffer Set

1. Press and hold “SCROLL” key until unit enters “Buffer Set Select Mode”.

2. Press “SCROLL” key again to select either 7.00 (7.00/4.01/10.01) or 6.86 (6.86/4.00/9.18)
buffer sets.

3. Press “STORE” key for 2 seconds to return to “Measure Mode”.

Note: It should only be necessary to select the buffer set once unless the set of buffers
changes.

D. Calibrate pH

1. Press “CAL” key for 2 seconds and release to enter “Calibration” mode.

2. Immerse meter into either pH 7.00 or 6.86 buffer solution depending on which Buffer Set you
are using. ‘WAIT” will flash.

3. The pH10A meter will determine when the calibration reading is stable. Meter is calibrated
when “WAIT” disappears. The unit will automatically enter the next calibration point 5
seconds later. One/first point calibration is now completed. Press “CAL” key to exit or
continue to next step for two/second point calibration.

4. Repeat Steps 2 and 3 for two/second point calibration by immersing the meter in pH

4.01/4.00 or 10.01/9.18 buffers.

5. Move to #6 for three/third point calibration or press “CAL” to exit two point calibration.

6. Repeat Steps 2 and 3 for three/third point calibration.

7. When “WAIT” disappears unit will automatically return to “Measure Mode”.

Note: For accuracy, it is recommended pH calibration is performed routinely with good buffer
solutions and a clean electrode or anytime after replacing the electrode.

E. Measure

Dip the electrode into the test solution while in the “Measure Mode”.

F. Hold Data

1. When the pH is stable, press “HOLD” key once to lock the reading on the display.

2. Press “HOLD” key again to unlock reading and the unit will return to “Measure Mode”.

The unit is now ready for another measurement.

Note: The unit cannot be powered off in “Hold Mode”.

G. Save Data

Either in the “Hold Mode” or the “Measure Mode”, press “STORE” key for 2 seconds. “DATA
SAVE” and “M-XX” will appear indicating the reading has been saved and stored in memory
location XX. The unit automatically returns to “Measure Mode”.
Note: The non-volatile memory stores up to 50 sets of data (pH, Temperature, Date, Time)
even if power is lost. If memory is full, the next set of data will overwrite the first data set stored,
etc.

H. Recall and Erase Data

1. In “Measure Mode”, press “SCROLL” key 3 seconds, the most recent set of saved data
will appear.

2. Press the “SCROLL” key to view previous saved data.

3. Press and hold the “CAL” key for 2 seconds to erase all saved data and return to
“Measure Mode”.

OR

4. Press “STORE” key for 2 seconds to return to “Measure Mode” without erasing data.

ONGOING MAINTENANCE

A. Electrode Storage

1. Electrodes attached to the instrument should be kept in a moist environment. Keep the
sponge in the chamber moist, tap water is acceptable. The single-junction electrode
needs to be kept clean; check periodically for cleanliness.

2. For long-term storage, store in pH 4 buffer.

B. Battery Disposal

This instrument is powered by alkaline batteries, which the user must remove and dispose of
when the batteries no longer power the instrument. Disposal requirements vary by country and
region, and users are expected to understand and follow the battery disposal requirements for
their specific locale.

The circuit board in this instrument may contain a manganese dioxide lithium "coin cell" battery
that must be in place for continuity of power to memory devices on the board. This battery is not
user serviceable or replaceable. When appropriate, an authorized YSI service center will
remove this battery and properly dispose of it, per service and repair policies.

ERROR DISPLAYS AND TROUBLESHOOTING

pH LCD
Display

Any Value "OVER"

"OVER"

"OVER"

"OVER"
“UNDER”

ATC
Display

0.0-

100.0°C

0.0 -

60.0°C

0.0 -

60.0°C

DISPLAY
Mode

Measure

Measure

pH CAL

a.pH-

STAND

b.pH­SLOPE
pH CAL

a.pH­STAND

b.pH­SLOPE

Possible cause(s)
[Action(s)]

a. Temperature outside 0 to 100.0°C range.
[Bring solution to a lower/higher temp.]
b. Bad sensor. [Replace electrode.]
pH value outside 0.00 to14.00 pH range .
[Use new buffer, Recalibrate, or Replace electrode.]

a. Offset @ 7.00pH: mV > 90mV
Offset @ 6.86pH: mV > 98.3mV
b. New slope>ideal slope by 30%
[Use new buffer or Replace electrode.]

a. Offset @ 7.00pH: mV < -90mV

Offset @ 6.86pH: mV < -81.7 mV

b. New Slope < ideal slope by 30%
[Use new buffer or Replace electrode.]

SPECIFICATIONS

Range Resolution Accuracy

pH 0.00 to 14.00 pH pH 0.01 pH pH ±0.02 pH ± 1 LSD

Temp. 0.0 to 100.0 °C Temp. 0.1 °C Temp. ±0.3 °C

Temp. 32.0 to 212 °F Temp. 0.2 °F Temp. ±0.6 °F

pH

Buffer recognition pH 7.00, 4.01, 10.01 or pH 6.86, 4.00, 9.18
Temperature compensation AUTO 0.0 to 100.0 °C (32.0 to 212 °F)
Buffer temperature range 0.0 to 60.0°C (32.0 to 140 °F)
Electrode offset ±90 mV at pH 7.00 +98.3 mV / -81.7 mV at pH 6.86
Electrode slope ±30% at pH 4.00, 4.01, 9.18 and 10.01
Input impedance >10

12

Ω

Temperature

Temperature sensor Thermistor, 10 k at 25°C

General

Battery life Meter: > 200 Hours
Ambient temperature range 0.0 to 50.0 °C
Display 98x64 graphic LCD
Case IP67 water-tight case
Weight 105 g (3.7 ounces)

REPLACEMENT PARTS

Item Number Description

605112 REF Instruction Manual

606110 pH10A Electrode Replacement Kit (Includes electrode, electrode collar, 2

606116 Sensor Cap
609118 Battery Compartment Kit (Includes battery cover and battery gasket)
605118 Battery Kit (Includes 4 batteries)

o-rings, and sensor cap)

WARRANTY

The EcoSense pH10A Instrument is warranted for one year from date of purchase by the end user against
defects in materials and workmanship. EcoSense pH10A electrodes are warranted for six months from date
of purchase by the end user against defects in material and workmanship. Within the warranty period, YSI
will repair or replace, at its sole discretion, free of charge, any product that YSI determines to be covered by
this warranty.

To exercise this warranty, write or call your local YSI representative, or contact YSI Customer Service in
Yellow Springs, Ohio. Send the product and proof of purchase, transportation prepaid, to the Authorized
Service Center selected by YSI. Repair or replacement will be made and the product returned, transportation
prepaid. Repaired or replaced products are warranted for the balance of the original warranty period, or at
least 90 days from date of repair or replacement.

Limitation of Warranty

This Warranty does not apply to any YSI product damage or failure caused by: (i) failure to install, operate or
use the product in accordance with YSI's written instructions; (ii) abuse or misuse of the product; (iii) failure to
maintain the product in accordance with YSI's written instructions or standard industry procedure; (iv) any
improper repairs to the product; (v) use by you of defective or improper components or parts in servicing or
repairing the product; or (vi) modification of the product in any way not expressly authorized by YSI.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YSI's LIABILITY UNDER THIS WARRANTY IS
LIMITED TO REPAIR OR REPLACEMENT OF THE PRODUCT, AND THIS SHALL BE YOUR SOLE AND EXCLUSIVE
REMEDY FOR ANY DEFECTIVE PRODUCT COVERED BY THIS WARRANTY. IN NO EVENT SHALL YSI BE LIABLE FOR
ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECTIVE
PRODUCT COVERED BY THIS WARRANTY.

Contact Information

YSI Inc. • 1725 Brannum Lane • Yellow Springs OH, 45387
800-897-4151 (USA only) • [phone] • Fax: [phone]
Email: [e-mail]

• Website: www.ysi.com