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PHH-1X
pH
Tester
LITMUSTIK”
M1008/0592
GENERAL DESCRIPTION
The OMEGA PHH-1X
Litmustik@
in a pocket. This newly designed
is an economical handheld unit small enough to fit
pH
tester features large display numerics for easy
reading, and single point calibration. Designed for fast evaluations in the field, this
pH
high performance tester measures the entire
pH
range from 0 to 14
units and
offers better accuracy than test paper ’.
OPERATING PROCEDURE
1.
Remove the black protective cap.
Turn on the PHH-1X with the ON/OFF switch located on top.
2.
Condition the PHH-1X according to the conditioning instructions. Large error can
3.
occur if the
4.
Calibrate the PHH-1X in a
be measured, by adjusting the CALIBRATION TRIMMER located on the reverse
side. Refer to the calibration instructions.
Dip PHH-1X in solution up to immersion level. Under no circumstances immerse
5.
above immersion level. Refer to Figure 1.
Stir gently and wait a few seconds.
6.
Large differences in readings of
7.
run-down batteries. To improve performance, leave PHH-1X up to
pH
bulb is dry.
pH buffer solution, close in
pH) could be due to dry electrode or
(+0.5
pH
pH value to the sample to
immersion level
in tap water for a few minutes at least once a week.
To change batteries, pull out the battery case and replace batteries. Refer to
8.
Figure 2.
When not in use, switch off the instrument. To ensure optimum operation,
9.
electrode should be kept moist. If soaker pad in bottom of protective
pour buffer 7.0 or 4.0 into cap to remoisten pad. If pad is missing simply add
buffer 7.0 or 4.0 to cap. Replace protective cap.
cap is
dry,
!t
IS
applications buffer 7.0 should be used.
equipment.
recommended that the unit be calibrated in buffer
pH * As with all
solution. For most
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CIUIYUI
I
Ut- I Ht IUNlNCi
PHH-1
X
Soak the sensing tip in either buffer 4, buffer 7, KCL solution or tap water for at least
30 minutes. Make sure that the sensing tip is immersed up to at least one inch from
the tip. This procedure should be followed when unit is received or if the
electrode is allowed to dry out. If unit is properly stored, this procedure is not
necessary.
CALIBRATION OF THE PHH-1X
pH
After conditioning, the
pen must be calibrated in a buffer solution close to the
value of the sample to be measured. Calibration is performed by turning the
CALIBRATION TRIMMER on the reverse side of the tester. The
Litmustik@
designed for single point calibration only. For accurate measurements, periodic
recalibration is recommended.
SPECIFICATIONS
RANGE:
ACCURACY:
RESOLUTION:
OPERATING TEMPERATURE:
BATTERY LIFE:
DIMENSIONS:
WEIGHT:
Oto
14pH
pH units from standardization point
+_3
+_0.2
0.1
0 to
1000
pH
50°c
pH,
hours of continuous use,
5.9” L x 1.3 ” W
0.13 lb.; 2.1 ounces
x
0.6 ” D
V
battery
x
1.5
4
OMEGA Engineering, Inc.
One Omega Drive, Box 4047, Stamford, CT
Headquarters:
Sales: l-800-826-6342
(203)
I
Customer Service: l-800-622-2378
Engineering: l-800-872-9436
FAX:
(203)
359-7700
TELEX: 996404
OMEGA
Technologies
EASYLINK: 62968934 CABLE: OMEGA
P.O. Box 1, Broughton Astley, Leicestershire
6XR,
England
LE9
Telephone: (0455) 285520 FAX:
RETURN REQUESTS
Direct all warranty and repair requests/inquiries to the OMEGA ENGINEERING Customer
Service Department. Call toll free in the USA and
7811; International:
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA,
-FTURN
have the following information available BEFORE contacting OMEGA:
1. P.O. number under which the product was PURCHASED,
2. Model and serial number of product, and
3. Repair instructions and/or specific problems you are having
OMEGA’s policy is to make running changes, not model changes, whenever
our customers get the latest in technology and engineering.
OMEGA is
QCopyright
may be reproduced in any manner. either wholly or in
from OMEGA ENGINEERING. INC.
LI
registered trademark of OMEGA ENGINEERING, INC.
1992 OMEGA ENGINEERING. INC. All rights reserved including illustrations. Nothing in this manual
203-359-1660, FAX: 203-359-7807.
(AR) FROM OUR CUSTOMER SERVICE DEPARTMENT. Please
with the product.
part for any purpose whatsoever without written permission
06907-0047
U.S.A.
359-1660
l-800-TC-OMEGA
/
l-800-622-BEST
l-800-USA-WHEN
/
Ltd.
(0455)
283912
/
INQUIRIES
Canada:l-800-622-2378, FAX: 203-359-
A’-‘TI-I@
AN
YQ.W!dUST
an
OBTAIN
improvement is possible. That
Printed in U.S.A.
pH
is
way
i
*-_
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