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Self-Diagnostic Messages
Self-diagnostic
Symbol
information
Wrong conductivity
1. Check if standard solution is
Er 1
standard solution, which
correct.
exceeds the recognizable
2. Check if electrode is damaged.
range of the meter.
CAL/ is pressed before
Wait for the measurement stability
Er 2
measurement is stable
icon () to appear and stay, then
(smiley face () appears).
press CAL/ key.
Specifications
0 to 200.0 μS/cm, 0 to 2000 μS/cm,
Range
0 to 20.00 mS/cm
Resolution
0.1 μS/cm, 1 μS/cm, 0.01 mS/cm
Conductivity
Accuracy
±1% full-scale
1, 2, or 3 points; automatic recognition of
Calibration
standards
0 to 100.0 ppm, 0 to 1000 ppm,
Range
0 to 10.00 ppt
TDS
Resolution
0.1 ppm, 1 ppm, 0.01 ppt
Range
0 to 10.00 ppt
Salinity
Resolution
0.01 ppt
Range
32 to 122°F (0 to 50°C)
Temperature
Resolution
0.1°F/°C
Accuracy
±0.9°F (0.5°C)
Display: LCD with two-color backlight. Blue = measurement mode;
Green = calibration mode
Reading lock: HOLD icon
Power: four AAA batteries (included); >400 hours of continuous
operation
Low-voltage warning:
battery status icon flashes
Auto power-off: tester automatically turns off after 8 minutes
of nonuse
IP rating: IP67 (waterproof), floats on water when sensor cap is on
Dimensions (L x W x H): 7" x 1.5" x 1. 5" (17.8 x 4 x 4 cm)
Weight: 4.7 oz (133 g)
Ordering Information
Model
How to fix
CTS5
—
Sensor Replacement
Screw off the sensor ring, unplug the sensor, plug in the new
replacement sensor (pay attention to the probe's position), and
rescrew on the sensor ring.
Battery Installation
The tester uses four AAA batteries. Please install batteries according to
the following steps. Note the correct direction of battery installation: the
positive side (+) of every single battery must face up. Incorrect installa-
tion of batteries will cause damage to the tester and create a potential
hazard.
1
1. Pull the battery cap up.
2. Slide the battery cap along the direction of arrow.
3.③Open the battery cap.
4. Insert the batteries (ALL POSITIVE SIDES FACING UP).
5. Close the battery cap.
6. Slide and lock the battery cap along the direction of arrow.
7. Fit the tester's cap while making sure to push all the way
down. The tester's waterproof design may be compromised if
the cap is not fitted correctly.
Product description
CTSTestr 5 pocket multiparameter tester
Replacement sensor for CTSTestr 5
4 x AAA Batteries
5
2
+
+
_
_
4
+
+
3
_
6
_
Warranty
We warrant this instrument to be free from defects in material and
Catalog
workmanship and agrees to repair or replace free of charge, at
number
option of Oakton Instruments, any malfunctioned or damaged prod-
35634-42
uct attributable to responsibility of Oakton Instruments, for a period
35634-44
of two years from the delivery (a six-month limited warranty applies
to sensors). 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 custom-
ers, not the service life of the tester or probe.
Oakton Instruments reserves the right to update the information in
this manual without giving notice in advance.
7
1065O101_MAN_CTS5_35634-42
www.4oakton.com
March 2018
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