Apera ORP60 Manuale utente

ORP60 Pocket ORP Tester

APERA INSTRUMENTS, LLC

www.aperainst.com

ORP60 Pocket ORP Tester Instruction Manual

1. Battery Installation

Please install batteries according to the following steps. Please note

polarity: “+” (anode) is upward; “-” (cathode) is downward.

2. Keypad Functions

Short press — < 2 seconds

Long press — > 2 seconds

1. Short press to turn on the tester and long

press to turn off the tester.

2. When turned off, long press to enter

parameter setting.

3. In measurement mode, short press to turn

on backlight.

In calibration mode, press to change

calibration value (unidirectional)

In mode setting, short press to change

parameter (unidirectional)

1. Long press to enter calibration mode.

2. In calibration mode, short press to con- firm

calibration.

3. When measured value is locked, short press

to unlock.

Complete kit

Preparation Before Use

1) Pour certain amount of Storage solution (KCl) into the probe cap, soak the

probe for 3 to 5 minutes to activate the sensor (if frequently used, there is no need

to soak).

2) The soaking solution is 3M KCl solution, which comes with the test kit. Users can

also make it by themselves by dissolving 25g KCl in 100 ml distilled water.

ORP Calibration

1) Clean electrode in distilled water and dry it.

2) Pour certain amount of 222 mV ORP standard buffer solution into the

calibration bottles (about half volume of the bottle).

3) Short press to turn the meter on. Long press to enter calibration mode.

If you need to exit calibration mode, short press

Graph - 2

4) Dip electrode in the standard buffer solution, stir gently, and allow it to

stand still in the calibration solution until a stable reading is reached. When

stable icon comes up, press to adjust the calibration value

according to the table below(also on the buffer bottle’s label).

222 mV (25˚C) ORP Standard Buffer Solution Calibration Reference Table

Temperature (˚C)

242

215

235

209

227

205

222

201

For example, if the temperature is around 25˚C, then adjust the calibration value to

222 mV. If the temperature is around 20˚C, then adjust the calibration value to 227

mV.

press to complete the calibration.

ORP Measurement

Press to power on, clean the probe in distilled water and dry it. And place the

probe in the tested solution and stir gently and let it stand still. Read the

measurement after comes up and stays.

Notes

1) Usually there’s no need to calibrate for ORP testing. When used for a long

time, users can test it in 222 mV ORP standard buffer. If the error is big,

please calibrate according to the steps in 5.1 to 5.4.

2) The meter has self-diagnosis function. Please refer to the followed chart for

detailed information.

Symbol

Self-Diagnosis information

How to fix

is pressed before the

measurement becomes stable

(smiley face comes up)

Wait till the smile icon appears and then

short press

7.1 The cleaning and activation of ORP probes

After long-time use, the surface of the platinum sensor can be contaminated and

cause inaccuracy and slow response time. If that happened, the followed

methods can be adopted to clean and activate:

a) For contamination caused by inorganic substances, dip the probe into 0.1

mol/L dilute hydrochloric acid for 30 minutes. Clean it with distilled water,

soak it into the KCL storage solution for 6 hours, and then it will be ready

for use again.

b) For contamination caused by organic substances and oiliness, clean the

platinum surface with dishwashing liquid, and wash with distilled water.

And then the probe will be ready for use again after 6 hours’ soaking in the

storage solution.

c) If the platinum surface is so severely contaminated that there forms an

oxide film, toothpaste can be used to clean the platinum surface, and then

wash it with distilled water. The probe will be ready for use again after 6

hours’ soaking in the storage solution.

Parameter Setting

8.1 Setting chart

8.2 Parameter setting instruction

When turned off, long press to enter parameter setting mode. Press to switch

from P1-P2-…P6. Press the, parameter flashes. Press to choose parameter

Press to confirm. Long press to power off.

A) High-Low Measurement Heads-Up Examples (P1 and P2)

Heads-Up when measured value ≥ 120 mV:

Preset low value = 120 mV, highest value = 1000 mV, when measured value ≥ 120

mV (stable icon displays on LCD); Red back-lit heads-up displays.

Heads-Up when measured value ≤ 150 mV:

Preset high value = 150 mV, lowest value = -1000 mV, when measured value ≤

150 mV (stable icon displays on LCD); Red back-lit heads-up displays.

Symbol

Parameter Setting Contents

Code

Factory Default

Low value measurement alarm

-1000 to 1000

-1000

High value measurement alarm

-1000 to 1000

1000

Select automatic lock

Off – On

Off

Select backlight

Off - 1 - On

1 (1 min auto off)

Select temperature unit

˚C - ˚F

˚C

Restore to Factory Default

No – Yes

Heads-Up when measured value in range of 120 mV and 150 mV:

Preset low value = 120 mV, highest value = 150 mV, when measured value in

range of 120 mV and 150 mV (stable icon displays on LCD); Red back-lit

heads-up displays.

B) Automatic lock (P3):

Select “On” to activate auto lock function. When reading is stable for more than 10

seconds, the tester will lock the value automatically, and HOLD icon will display on

LCD. Press key to cancel auto hold.

C) Backlight (P4)

“Off”-turn off backlight, “On”-turn on backlight, “1”- backlight will last for 1 minute.

D) Temperature Unit (P5)

Select C˚ or F˚, the factory default is ˚C.

E) Factory default setting (P6)

Select “Yes” to recover instrument calibration to theoretical value (pH value in zero

potential is 7.00, slope is 100%), parameter setting return to initial value. This

function can be used when instrument does not work well in calibration or

measurement. Calibrate and measure again after recover the instrument to factory

default status.

Technical Specifications

Tester functions:

• Calibration points indication:

• Stable measurement:

• Reading value auto. hold: HOLD

• Self-Diagnostic Information: Er2

• Low-Voltage warning: flickering, reminder of battery replacement

ORP

(mV)

Measuring Range

±1000 mV

Resolution

1 mV

Accuracy

±0.2% F.S

Temp.

Measurement Range

0 – 50 ˚C

Resolution

0.1 ˚C

Accuracy

±0.5 ˚C

• Three-color backlight:

• Blue—Measurement Mode; Green—Calibration Mode; Red color—Alarm

• Auto. Power-Off in 8 minutes without operation

10.

Electrode Replacement

Twist off the probe ring, unplug the probe, plug in new probe (pay attention to the

electrode’s position), and screw on the probe ring. The compatible model of

replacement probe is ORP60-E.

11.

Warranty

We warrant this instrument to be free from defects in material and workmanship and

agrees to repair or replace free of charge, at option of APERA INSTRUMENTS,

LLC, any malfunctioned or damaged product attributable to responsibility of APERA

INSTRUMENTS, LLC for a period of two years from the delivery (a six-month

limited warranty applies to electrodes). This warranty does not apply to defects

resulting from actions such as misuse (violation of the instructions in this manual or

operations in the manner not specified in this manual), improper maintenance, and

unauthorized repairs. Warranty period is the time limit to provide free service for the

products purchased by customers, not the service life of the tester or electrode.

APERA INSTRUMENTS, LLC

Address: 977 Old Henderson Rd, Columbus Ohio 43220

Phone: 1-614-285-3080

Email: info@aperainst.com

Website: www.aperainst.com

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