Yokogawa pH/ORP Retractable PH97 Bedienungsanleitung PDF herunterladen

PREPARATION FOR USE:

1. Remove storage boot containing the

storage solution (3.8M KCl) by unwind-

ing the black sealing tape from the sen-

sor housing.

NOTE:

DO NOT remove the wetted fiber pack

from inside the storage boot.

2. Save the storage boot with fiber pack

for future use as a storage container

and bulb protector when sensor is not in

service. Be certain to use 3 to 4 M KCl

as the storage solution. Seal boot to

sensor with black electrician’s tape

using 3 to 5 complete wraps.

3. For first-time use after removing the

storage boot: Inspect the sensor for any

signs of breakage or shipping damage

and commence with Calibration Proced-

ures.

4. For sensors with replaceable o-ring

seals: All o-rings require proper lubrica-

tion. We recommend use of PARKER O

LUBE or equal for this purpose. Follow

the instructions provided with lubricant.

For best results we recommend that all

o-rings be replaced whenever sensor is

removed for service or inspection.

CAUTION:

The Model PH97/DP pH sensor is de-

signed for use only with the Model PH87

retractable assembly. Please refer to the

Model PH87 retractable assembly install-

ation manuals for complete assembly,

installation, and service instructions.

CALIBRATION PROCEDURE:

Refer to the specific instructions for pH

sensor calibration described in the

instruction manual provided with the

EXA pH analyzer.These instructions will

include procedures for automatic and/or

manual calibration.

For best results it is recommended

to perform a two-point pH calibration

using NIST primary buffers.

Recommended Two-Point

Calibration:

Rinse the probe thoroughly with DI

water to remove all traces of storage

solution, process medium or previous

test solution to prevent “carry over” con-

tamination of the pH buffer solutions.

Thoroughly rinse the probe with DI

water after each buffer test.

NOTES:

• Always use “fresh” pH buffer solutions

for best results.

• pH buffer solutions above 7.0 pH are

less stable and have a very limited life.

These high pH buffers will more readily

absorb CO

from the atmosphere and

will typically change to a lower pH value

when left open.

• Keep in mind the the “older” a sensor

becomes, it will exhibit slower response

times and will become less efficient in

terms of its ability to span several pH

units with the same repeatability.

CLEANING A MODEL PH 97/DP

WITH IMPAIRED RESPONSE:

Used pH sensors which are physically

intact can sometimes be restored to an

improved level of performance. All pH

sensors have a given useful life span

depending on the conditions of use. One

of the following procedures may prove

helpful in restoring a used pH sensor.

1. Initial Cleaning: Wash with a solu-

tion of liquid detergent or enzyme deter-

gent and warm water by gently scrub-

bing with a soft toothbrush or soft tissue.

Follow with thorough rinse in DI or clean

tap water.

2. Inorganic Scale Deposits: Dissolve

the deposit by immersion of the sensor’s

measurement tip in dilute hydrochloric

acid for a few minutes. Repeat step #1

above.

3. Organic Oil or Grease Films: Per-

form initial cleaning procedure. If film is

known to be soluble in a particular org-

anic solvent, wash with this solvent.

Repeat step #1 above. Depending on

the extent of the oil or grease contami-

nation, it’s possible that the liquid junc-

tion may be damaged beyond recovery.

Soak in 3 to 4M KCl solution for a mini-

mum of 30 minutes before recalibration

and returning sensor to service.

Plugged or Dry Liquid Junction:

Remove any observed contaminant with

one of the above procedures, then soak

in 3 to 4M KCl solution for a minimum of

30 minutes.

NOTES:

• Never permit the pH sensor to dehy-

drate or dry-out. Always keep it in a wet-

ted environment especially when not in

service.

• Cracked or broken sensors are not

repairable.

• Inspect cable and connector to en-

sure that the insulation integrity is intact

and that there are no signs of corrosion

or contaminants on the metal compo-

nents.

STORAGE:

1. Short Term: Immerse sensor meas-

urement tip and liquid junction surface

areas in 3 to 4M KCl. If this solution is

not available, use 4.01 pH buffer, clean

tap water, or lastly, a sample of the pro-

cess being measured to keep the sen-

sor hydrated.

2. Long Term: Fill storage boot that the

sensor was originally shipped in with a

freshly prepared 3 to 4M KCl solution

and insert sensor. Seal boot to sensor

with black electrician’s tape using 3 to 5

complete wraps. The sensor should be

stored in an upright (vertical) position.

Instruction

Sheet

DynaProbe

Model PH97/DP

pH Sensor

Yokogawa Corporation of America

2 Dart Road, Newnan, GA 30265

Tel.: 770-254-0400 Fax.: 770-251-6427

U.S. Patent 5,147,524

®DynaProbe is a registered trademark of

Broadley-James Corporation

Doc. Nr. L2531

1 2

Instruction 1

Inhaltsverzeichnis

Seite 1 - Instruction

PREPARATION FOR USE:1. Remove storage boot containing thestorage solution (3.8M KCl) by unwind-ing the black sealing tape from the sen-sor housing.NOT

Seite 2

VITONO-RINGpH GLASSBULB6.1"0.835 "RYTON (PPS)0.9 " O.D.EXTERNAL THREAD FORCOUPLER BLOW-OUTRESTRAINTandBULB GUARDDynaProbe®Model PH97/DP

Weitere Dokumente für Sensoren Yokogawa pH/ORP Retractable PH97

Um das Dokument anzuzeigen Yokogawa pH/ORP Retractable PH97 Bedienungsanleitung

Yokogawa pH/ORP Retractable PH97 Bedienungsanleitung (20 Seiten)

Kommentare zu diesen Handbüchern

Keine Kommentare

Yokogawa pH/ORP Retractable PH97 Bedienungsanleitung

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Sensoren Yokogawa pH/ORP Retractable PH97 herunter. Yokogawa pH/ORP Retractable PH97 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Weitere Dokumente für Sensoren Yokogawa pH/ORP Retractable PH97

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Yokogawa pH/ORP Retractable PH97