nition of the buffer press the “ON/OFF” but- ton to return to normal mode.
•For a two point pH calibration, place the
probe in pH 7.01 buffer (or pH 6.86, if the NIST buffer set was selected). 
The meter will recognize the buffer value and then display pH 4.01 USE.
• Place the probe in the second buffer (pH 4.01 or 10.01, or, if using NIST, pH 4.01 or 9.18). When the second buffer is rec- ognized, the LCD will display “OK” for 1 second and the meter will return to normal mode.
•The “CAL” tag is displayed on the LCD to indicate that the meter is calibrated.
EC/TDS OPERATIONS:
•The user can select the EC/TDS conversion factor (CONV) value, as well as the β coef- ficient (BETA) for automatic temperature com- pensation.
•Enter the EC or TDS mode with the “RANGE” key, then press and hold the “ON/OFF” key until “TEMP” is displayed on the
secondary LCD. Press this key again to show the current con- version factor (CONV).
•Press the “SET” button to
change the value, then press again this key to show the cur- rent temperature coefficient (BETA).
•Press the “SET” button to change the value, then press the “ON/OFF” key return to normal operation.
•For taking EC or TDS measurements, immerse the probe in the solution to be tested.
•Select either EC or TDS mode with the “RANGE” key.
•Stir gently and wait for the reading to stabi- lize (the clock symbol stops blinking).
EC/TDS CALIBRATION PROCEDURE:
•Clean the probe with M10000 solution.
•Enter the EC mode with the “RANGE” key.
•Immerse the probe in MA9030 (12.88 mS/cm) calibration solution.
•Press and hold the “ON/OFF”
key until “CAL” is displayed on the LCD. Release the button and the message “12.88 mS USE” will appear.
•The meter will perform automatic calibration, and then display “OK” for 1 second before returning to normal mode.
•The calibration is now complete and the “CAL” tag is displayed on the LCD to indicate that the meter is calibrated.
BATTERY REPLACEMENT:
The meter shows the remaining battery percent- age every time it is switched on. When the battery level is below 5%, the battery symbol on the bottom left of the LCD lights up to indicate a low battery condition.
The meter is also provided with BEPS (Battery Error Prevention System), which automatically switches the meter off if the battery level is so low to cause erroneous readings.
It is recommended to replace immediately the battery.
Turn the meter off, remove the battery compartment cover from the rear of the meter and re- place the rundown 9V battery with a new one.
Install the battery while paying attention to its polarity and re- attach the cover.
NOTES:
•If reading is
•To clear a previous calibration, press “ON/ OFF” after entering the calibration mode. The lower LCD will display ESC for 1 second and the meter will return to normal measurement mode. The “CAL” symbol on the LCD will disappear and the meter is reset to the default calibration.
WARRANTY:
This instrument is warranted against defects in materi- als and manufacturing for a period of two years from the date of purchase. Probe is warranted for 6 months. The probes are warranted for a period of six months.
If during this period the repair or replacement of parts is required, where the damage is not due to negligence or erroneous operation by the user, please return the parts to either distributor or our office and the repair will be effected free of charge.
Damages due to accidents, misuse, tampering or lack of prescribed maintenance are not covered.
OPTIONAL ACCESSORIES:
MA9004 pH 4.01 buffer solution, 230 ml bottle MA9006 pH 6.86 buffer solution, 230 ml bottle MA9007 pH 7.01 buffer solution, 230 ml bottle MA9009 pH 9.18 buffer solution, 230 ml bottle MA9010 pH 10.01 buffer solution, 230 ml bottle MA9030 12.88 mS/cm cal.solution, 230 ml bottle MA9015 Probe storage solution, 230 ml bottle MA9016 General cleaning sol., 230 ml bottle M10000B Rinse solution, 20 ml sachet (25 pcs.) MA851D/1 Amplified pH/EC/TDS/Temperature
probe with DIN connector and 1 m (3.3’) cable.
SPECIFICATIONS:
RANGE |
|
|
pH |
| 0.00 to 14.00 pH |
EC |
| 0.00 to 20.00 mS/cm |
TDS |
| 0.00 to 10.00 ppt |
Temp. | 0.0 to 60.0ºC or 32.0 to 140.0°F | |
RESOLUTION |
|
|
pH |
| 0.01 pH |
EC |
| 0.1 mS/cm |
TDS |
| 0.01 ppt |
Temp. |
| 0.1°C or 0.1°F |
ACCURACY (@25°C) | ±0.01pH | |
|
| ±2% FS (EC/TDS) |
|
| ±0.5°C or ±1°F |
TYPICAL EMC DEV. | ±0.02 pH | |
|
| ±2% FS (EC/TDS) |
|
| ±0.5°C or ±1°F |
TEMPERATURE Automatic from 0 to 60ºC; COMPENSATION ß adj. from 0.0 to 2.4%/°C
pH CALIBRATION | 1 or |
with automatic buffer recognition | |
EC CALIBRATION | Automatic, 1 point |
EC/TDS CONVERSION | adj. from 0.45 to 1.00 |
FACTOR |
|
PROBE (included) | MA851D/1 |
amplified pH/EC/TDS/Temperature probe
with DIN connector and 1 m (3.3’) cable.
ENVIRONMENT | 0 to 50°C (32 to 122°F); |
| 100% RH max. |
BATTERY TYPE | 1 x 9V (6F22) |
BATTERY LIFE | approx. 300 hours |
after 8 minutes | |
DIMENSIONS | 200 x 85 x 50 mm |
WEIGHT | 260 g (with battery) |
| ISM806R1 11/03 |
