STEP SYSTEMS 23050 User Manual

Item-no. 23050

Pocket Multi-Tester

User Manual

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

General information

The contents of this manual were carefully verified and have been compiled
to the best of our knowledge. However, the Manufacturer does not accept
liability for possibly contained statements in this manual. In no event will the
manufacturer be liable for direct, indirect, special, incidental or
consequential damages resulting from any defect or omission in this
manual. The manufacturer reserves the right to make changes in this
manual and the products it describes at any time, without notice or
obligation. Revised editions can be found on the manufacturer’s website.

Declaration of Conformity:

This device complies with the EMC Directives 89/336/EEC,
2004/108/EF, 73/23/EEC and 2004/22/EF, EN60065,
EN55022 Class B, EN55024, EN6100-3-2, EN292 and EN 60335.

Legal Obligation for battery disposal: Batteries do not belong in
household waste. As consumer, you are legally obliged to return used
batteries. You can bring your old batteries to public collection points in
your community or anywhere else where batteries of this type are sold.
Note: these characters can be found on batteries containing pollutants:

Pb = battery contains lead - Cd = battery contains cadmium
Hg = battery contains mercury

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

Technical features:

- large LCD display

- measuring parameters: pH / mV / COND / TDS / SALT / °C

- confirmation when a stable measured value is reached with icon
on the display

- automatic temperature compensation

- calibration on 1, 2 or 3 points

Measurement range: рН: -2 - 16; ЕС: 0 - 20 mS; mV: ±1000;

TDS: 0.1 ppm - 10 ppt; S: 0.01...10g/l; t: 0..+50°C

Redox: ± 1000 mV
Resolution: pH: 0.01; t: 0.1°C; ЕС, SALT: automatic
Accuracy: pH: ± 0.01, EC: ±1%; TDS: ±1%; t: ± 0.2 °C
Calibration: рН/ЕС: 1, 2 or 3-point calibration
Temperature

compensation: automatic
Power: 4 batteries x 1.5V AAA, > 200 h
Automatic switch-off: after 8 min
Display: LCD, multi-color backlight
Housing: splash-proof
Protection class: IP 67
Dimensions: 35 x 175 mm: Ø х L (inst.), 29 x 25 x 6 cm (case)
Weight: 130 g (instrument), 0.9 kg (complete case)
Warranty: 2 years for the instrument,

6 months for the electrode

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

Instrument description

1. Battery compartment

2. Battery status indicator

3. Unit

4. Temperature indication

5. Measurement parameter

6. Stability indicator

7. Buffer/calibration solution

8. ON/OFF and Escape

9. MODE

10. Calibration button CAL

11. Replaceable sensor

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

Start-up

Insert the battery

Open the battery compartment. Insert the four AAA 1.5 Volt batteries
with correct polarity. Close the battery compartment.

Switch on

Press the ON / OFF (8) button to turn on the instrument.

Calibration

Calibration of the device is possible by buffer solutions for up to 3
calibration points. We recommend at least 2-points calibration for optimal
measuring results!

Before you start calibration of the Multi-Tester, fill the two measuring cups
with the amount of buffer solution you need.

Now press the CAL button (10) to enter the calibration modes. The display
shows CAL for approx. 2 sec. After that you can immerse the probe in the
first buffer solution pH7 (green). The device automatically detects the
calibration point and stabilizes the measurement.

After a stable value is reached, a Smiley icon appears on the display. Press
the CAL button (10) again and the probe calibrates independently to the
first value.

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

Before proceeding with the pH4 (red) buffer solution, please neutralize the
probe: rinse it with distilled water and wipe it with a piece of cloth.

Repeat as before. After the calibration has been carried out on the second
point, the third point can be calibrated directly, or you can exit the CAL
mode by pressing ESC (8). This takes you directly to the measuring mode.

EC calibration is identical, here only first you should switch to the
measuring range COND using the MODE button (9). Depending on the
use, the Multi-Tester should be calibrated daily before starting a
measurement session, or - when not used frequently - always before a
measurement!

Measurement

Press the ON / OFF button (6) to switch the Multi-Tester on. In the
measurement mode the display is blue. Press MODE (9) to select the
desired measurement value. Insert the sensor then into the solution or

product to be measured and wait until the value is stabilized and
appears. Now you can read the value on the display and select another
measuring value or proceed with the measurement in further liquids or
products.

However, we recommend to neutralize the sensor shortly in water between
measurements in order to avoid falsifying of results.

Clean the sensor after each measurement session with distilled water. Put
a few drops storage solution or buffer solution pH4 in the protective cap
and put on the cap.

Attention: do never store the electrode in distilled water!

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

Measurement parameters

Press the MODE button (9) to choose between the parameters:
pH / mV / COND / TDS / SALT / °C

The mV function helps to prove the pH sensor. A new pH electrode
stabilizes rapidly and shows about 0 mV at pH 7.00, and about 170 mV at
pH 4.00. If the difference between the two values is less than 140 mV and
the electrode reacts very slowly, it must be replaced.

Display light

The display has a backlight in three different colors (blue, green and red)
which change depending on the mode. The light also switches on for about
6 seconds after short pressing of the ON / OFF button (8).

Blue light = normal measurement mode

Green light = calibration mode

Red light = instrument or sensor fault

Switch OFF / Auto Power OFF

Press the ON / OFF button (8) for approx. 5 seconds to switch off the
device.

The meter will automatically turn off 8 minutes after the last press of a key.

Battery replacement / Battery status indication

An indication in the display shows the battery status.
You can also operate the Multi-Meter with rechargeable batteries (see also

“Insert the battery”).

Pocket Multi-Tester

User Manual

All rights reserved.

Printed in Germany.

STEP Systems GmbH 2017

Duisburger Str. 44
Tel: ++49 (0) 911 96 26 05-0
Fax: ++49 (0) 911 96 26 05-9
D-90451 Nürnberg
e-mail: [e-mail]
www.stepsystems.de

Setup mode

Press and hold the CAL button (10). Additionally, press ON/OFF (8). A full­segment test appears in the display. After releasing the CAL button, "t.u"
appears in the display and °C flashes. Now you can choose between °C &
°F by pressing the MODE button (9).

Press the CAL button (10) again to confirm the desired setting, then the
instrument changes to the RESET mode. The Multi-Tester can be reset to
factory settings by pressing the MODE button (9).

no/rSt = keep the settings
YES/rSt = reset to factory settings

By pressing the CAL button (10) again you save the settings and leave the
setup menu.