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ECO EC-Tester Manual
Front panel and display
2
S
P
E
T
S
1
ON/OFF
SET
MODE
HOLD
www.stepsystems.de
7
Technical data
0 to 20 mS/cm,
Range
0 to 60°C (32 to 140°F)
Resolution
0,01 mS, 0,1°C (0,1°F)
Accuracy
± 2% , ± 0,5°C (± 1°F)
Calibration
automatic 1 point 12,88 mS
TDS Factor
selectable 0,45 to 1,00
Temperature com-
automatic from 0 to 60 °C
pensation
4 x 1,5V button type,
Battery
approx. 100 hours of use
Auto-off
after 8 minutes of non-use
Envirment
-5 to 50°C (23 to 122°F), RH 100%
Housing
waterproof
Dimension
175,5 x 39 x 23 mm
Weight
100 g
Warranty
2 years, 6 month electrode
1. On/Off and Mode
2. Display
3. Set and Hold
4. Battery (inside)
5. Retaining ring
6. Electrode body
7. EC electrode and tem-
perature sensor
3
4
5
4
3
%
ppt
mS
5
2
+
CAL
°C
1
ATC
°F
6
1. Automatic temperature
compensation
2. Calibrated meter
3. Low battery
4. Stability indicator
5. Measurement unit
6. Measurement display
7. Temperature display
STEP Systems GmbH
Duisburger Str. 44
D-90451 Nürnberg
Tel: 0049 (0) 911-96 26 050
Fax: 0049 (0) 911-96 26 059
e-Mail: info@stepsystems.de
Internet: www.stepsystems.de
Operation
Turn on and measurement
1. Press and hold ON/OFF until the display lights up.
2. Remove the protective cap of the electrode.
3. Select with SET/HOLD the TDS or EC measurement mode.
The tester is now ready for operation.
4. Put the electrode into the sample and move it gently.
5. The stability indicator shows a stable measurement result.
6. Freeze the display with SET/HOLD. Press any button to return
to measurement mode.
7. To turn off the tester press ON/OFF until the display shows
OFF.
8. Clean the electrode after each measurement session with dis-
tilled water and put on the protective cap.
Calibration
Calibrate the ECO EC-Tester, if
•
the electrode has been replaced
6
•
min. once per month
•
to ensure accurate results
7
1. Press ON/OFF until the measurement mode is shown.
2. Press and hold ON/OFF, until the display shows CAL.
3. Release ON/OFF, the display shows 12.88 USE.
The CAL-symbol flashes.
4. Put the electrode in the calibration solution 12,88 mS.
The display shows OK.
5. After successful calibration the tester returns to the
measurement mode.
Maintenance
Change the electrode
1. Unscrew the retaining ring and put it off.
2. Pull off the old electrode body.
3. Put on the new electrode body.
4. Screw the retaining ring on.
5. Calibrate the electrode.
Change the battery
1. When the display shows the battery icon, change the batteries.
2. Unscrew the retaining ring and put it off.
3. Pull off the electrode body.
4. Pull out the battery compartment gently.
5. Change the four 1,5V button batteries, pay attention to the
polarity.
6. Press the battery compartment carefully back into the ECO
EC-Tester.
7. Put on the electrode body.
8. Screw the retaining ring on.
9. Calibrate the electrode.
Printed in Germany 2009
All rights reserved
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