Hanna Instruments PHep+ HI 98108 Manual de usuario

pHep®+

HI 98108

Pocket-sized pH Meter

with ATC

IST98108 R3 05/05

pHep®+is a rugged pH tester with replace-

able electrode and renewable reference junction.

The instrument can be calibrated at two points

by the user, simply acting on the offset and slope

calibration trimmers. In addition, the Automatic

Temperature Compensation feature enhables high

accuracy in measurements.

pHep®+is in compliance with the CE direc-

tives.

SPECIFICATIONS

Range 0.0 to 14.0 pH

Resolution 0.1 pH

Accuracy (@20°C/68°F) ±0.1 pH

Typical EMC Deviation ±0.1 pH

Calibration Manual, 2 point, through

offset and slope trimmers

Temperature Compensation

Automatic, 0 to 50°C

Environment 0 to 50°C (32 to 122°F);

RH max 95%

Battery Type 4 x 1.5V alkaline

Battery Life approx. 200 hours of use

Dimensions 175 x 41 x 23 mm

(6.9 x 1.6 x 0.9")

Weight 95 g (3.4 oz.)

ACCESSORIES

HI 73108 Spare electrode

HI 7004M pH 4.01 solution, 230 mL bottle

HI 7007M pH 7.01 solution, 230 mL bottle

HI 7010M pH 10.01 solution, 230 mL

HI 70300M Storage solution, 230 mL bottle

HI 7061M Cleaning solution, 230 mL bottle

HI 731326 Calibration screwdriver (20 pcs)

pHep is a registered Trademark of

Hanna Instruments

www.hannainst.com

Pull out 2 mm (1/8'') of the cloth

junction to renew the electrode refer-

ence (it is recommended to cut the

cloth leaving always at least 2 mm -

1/8'' over the reference compartment)

and recalibrate the meter.

The cloth junction can be pulled out approximately 20

times. After that, the electrode should be replaced.

ELECTRODE REPLACEMENT

For replacing the electrode, contact your Dealer or the nearest

Hanna Service Center.

BATTERY REPLACEMENT

If calibration can not be performed or the display fades,

batteries must be replaced. Slide off the battery compart-

ment cover and replace all four 1.5V alkaline batteries,

while paying attention to the correct polarity.

Batteries should only be replaced in a non-hazardous area

and using the battery type specified in this instruction

manual.

CONDITIONING

• Remove the cap.

• To activate the electrode, immerse it in HI70300

storage solution for 2 hours.

CALIBRATION

• Immerse the electrode in pH 7.01 (HI7007) buffer

solution.

• Allow the reading to stabilize and

with the supplied screwdriver, ad-

just the “pH7” calibration trimmer

to read “7.0” pH.

• Rinse the electrode with tap water

and immerse it into the second

buffer.

• Use pH 4.01 (HI7004) if the solution to be measured

is acidic (pH < 7), or pH 10.0 (HI7010) for alka-

line samples (pH > 7).

• Allow the reading to stabilize and with the screwdriver

adjust the “pH4/10” calibration trimmer to read “4.0”

or “10.0” pH.

OPERATION

• Remove the protective cap, turn the

pHep®+on, by sliding the ON/

OFF switch on the top of the meter.

• Immerse it in the solution to be

tested without exceeding the maxi-

mum immersion level.

• Stir gently and wait for the reading

to stabilize.

• After use, switch the meter off, rinse the electrode with

tap water and store it with a few drops of storage

(HI70300) or pH7 (HI7007) solution in the protec-

tive cap. Always replace the protective cap after use.

NEVER USE DISTILLED OR DEIONIZED WATER FOR STOR-

AGE PURPOSES.

• Large differences in pH readings (±1 pH) could be

due to lack of calibration or dry electrode.

MAINTENANCE

The sensor should be kept moist at all times. For this

purpose, always keep wet the tissue inside the protective

cap. In case of erroneous readings even after an accurate

conditioning and calibration, the reference junction might

be contaminated or clogged.

WARRANTY

This meter is guaranteed for one year against defects in

workmanship and materials when used for their intended

purpose and maintained according to instructions. This war-

ranty is limited to repair or replacement free of charge.

Damages due to accident, misuse, tampering or lack of

prescribed maintenance are not covered. If service is re-

quired, contact the dealer from whom you purchased the

instrument. If under warranty, report the model number,

date of purchase, serial number and the nature of the fail-

ure. If the repair is not covered by the warranty, you will be

notified of the charges incurred. If the instrument is to be

returned to Hanna Instruments, first obtain a Returned Goods

Authorization Number from the Customer Service depart-

ment and then send it with shipment costs prepaid. When

shipping any instrument, make sure it is properly packaged

for complete protection.

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