TEC-HU TE 51 User manual

ISTRTE51 07/09
TE 51 & TE 52
Waterproof EC meters
USER MANUAL
SPECIFICATIONS
Range TE 51 0 to 1999 µS/cm
TE 52 0.00to10.00mS/cm
Resolution TE 51 1 µS/cm
TE 52 0.01 mS/cm
Accuracy(@20°C) ±2% F.S.
Typical EMC ±2% F.S.
Deviation
Temperature Automatic,
Compensation 0to50°Cwithβ=2%/°C
Calibration Manual, at 1 point
throughtrimmer
Probe TE 51 TE73075 (replaceable)
TE 52 TE73076 (replaceable)
Environment 0to50°C;100%RH
Batterytype 3 x 1.5V, alkaline
Batterylife approx.250hoursof
continuoususe
Dimensions 165 x 30 x 30 mm
Weight 80g
ACCESSORIES
TE73075 ReplaceableConductivity
probe,LR
TE73076 ReplaceableConductivity
probe,HR
These meters are in compliance with the CE directives.

CALIBRATION:
• Immerse the meter in 1413 µS/cm
calibration solution.
• Unscrew the battery compartment
cap on the top of the meter.
• Allow the reading to stabilize and
with a small screwdriver turn
the calibration trimmer inside the
battery compartment until the
display shows "1413" for TE 51
or “1.41” for TE 52.
• Replace the battery compartment
cap.
The calibration is now complete.
OPERATION:
• Remove the protective cap.
• Turn the meter on by pressing
the ON key.
• Immerse the probe in the solution
to be tested.
• Stir gently and wait for the reading
to stabilize.
• After use, rinse the electrode with
water to minimize contamination.
• Always replace the protective
cap after use.
Note: If the reading is over-range,
the display will show “1”.
PROBE REPLACEMENT:
The probe can be easily replaced in the
following way:
• Remove the protective cap.
• Unscrew the plastic ring on
the top of the probe.
• Pull out the TE73075 (or
TE73076) probe and replace
it with a new one (aligning the
colored pin towards the LCD
side).
• Make sure the gaskets are in
place before screwing back
the plastic ring.
BATTERY REPLACEMENT:
The meter is supplied with BEPS (Battery
Error Preventing System) which avoids any
erroneous reading due to low battery level,
by switching the meter off. To replace the
batteries unscrew the battery compartment
cap and replace all three 1.5V batteries
while paying attention to their polarity. Make
sure the gasket is in place before screwing
back the cap.
Batteries should only be replaced in a non-
hazardous area using the battery type specified
in this instruction manual.