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Symbol
Menu setting
Selection
Select pH buffer
P1
USA – NIST
solution
Set low
P2
0 to 14.00 pH
measurement alarm
Set high
P3
0 to 14.00 pH
measurement alarm
P4
Select Automatic
Off – On
Lock (HOLD)
P5
Select backlight
Off – 1 – On
Select temperature
P6
°C – °F
unit
Restore to factory
No – Yes
P7
default
Notes
A. Select standard pH buffer solution (P1) There are two options of
standard buffer solutions: USA series and NIST series.
B. High and Low Measurement Heads-Up Examples (P1 and P2)
Alert when measured value ≤3.20 pH: Preset lowest value (P2) = 3.20
pH, highest value (P3) = 14.00 pH, when measured value is ≤3.20
pH (stability icon ( ) displays on LCD), the red backlight appears on
display.
Alert when measured value ≥8.60 pH: Preset highest value (P3) = 8.60
pH, lowest value (P2) = 0.00 pH, when measured value is ≥8.60 pH
(stability icon ( ) displays on LCD), the red backlight appears on
display.
Alert when measured value ≤3.20 pH or ≥8.60 pH: Preset lowest
value (P2) = 3.20 pH, highest value (P3) = 8.60 pH, when measured
value is lower than 3.20 pH or higher than 8.60 pH (stability icon ( )
displays on LCD), the red backlight appears on display.
C. Automatic Lock (P4)
Select "On" to activate auto lock function. When reading is stable for
more than 10 seconds, the tester will lock the value automatically,
and "HOLD" icon will appear on the bottom left of the screen. Press
CAL/ key to cancel HOLD on reading.
D. Backlight (P5)
Select "Off" to turn off backlight function, "On" to turn on backlight
unction, or "1" to have backlight last for 1 minute.
E. Temperature Unit (P6)
Select °C or °F; the factory default is °C.
F. Factory Default Setting (P7)
Select "Yes" to recover instrument calibration to the theoretical value
(pH value in zero potential is 7.00 pH, slope is 100%), parameter
setting returns to initial value. This function can be used when
instrument does not work properly in calibration or measurement.
Calibrate and measure again after resetting the unit to factory
default status.
ORP Measurement
ORP stands for Oxidation-Reduction Potential. ORP is a measure of
the cleanliness of the water and its ability to break down
contaminants. Note that ORP probe with BNC connector must be
purchased separately.
Once ORP probe is connected to tester, press MODE/ key to enter
Factory default
ORP mode. Rinse the probe in distilled water and dry it. Dip the
USA
probe in sample solution, stir gently, and allow it to stand still until a
stable reading is reached. Get readings after measurement stability
0
icon ( ) appears and remains on the screen.
14.00
Specifications
Off
Range
Resolution
1
Accuracy
°C
pH
Calibration points
No
Automatic
temperature
compensation
(ATC)
Range
Resolution
ORP (mV)*
Accuracy
Range
Temperature
Resolution
Accuracy
* Note that the pH and ORP probes with BNC connector must be
purchased separately.
Display: LCD with three-color backlight. Blue = measurement;
Green = calibration; Red = alarm
Reading lock: HOLD icon
Power: four AAA batteries (included); >400 hours of continuous
operation
Low-voltage warning:
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
pH BNC 10
pHTestr BNC 10 pocket pH tester
_
SJ direct connect pH electrode
_
DJ direct connect pH electrode
Probe Replacement
Unplug the probe, plug in the new replacement probe (pay attention
to the BNC connector's position).
Battery Installation
The tester uses four AAA batteries. Please install batteries accord-
ing to the following steps. Note the correct direction of battery
installation: the positive side (+) of every single battery must face
up. Incorrect installation of batteries will cause damage to the tester
and create a potential hazard.
–2.00 to 16.00 pH
0.01 pH
±0.01 pH ±1 digit
1, 2, or 3 points;
auto buffer recognition
32 to 122°F(0 to 50°C)
±1000 mV
1 mV
±0.2% full-scale
32 to 122°F (0 to 50°C)
0.1°F/°C
±0.9°F (0.5°C)
battery status icon flashes
Catalog
Product description
number
35634-14
35804-00
35804-08
①
Battery Lid
Cap Lock
Clip
Push the clip to open the battery lid
Lift the clip to unlock
4×AAA
Batteries
⑤
②
④
③
⑥
1. Open battery lid.
2. Slide the battery cap along the direction of arrow.
3. Open 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.
Warranty
We warrant this instrument to be free from defects in material and
workmanship and agrees to repair or replace free of charge, at
option of Oakton Instruments, any malfunctioned or damaged
product attributable to responsibility of Oakton Instruments, for a
period 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 customers, 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.
www.coleparmer.com
1065O101_MAN_pH BNC 10_35634-14
⑦
April 2021
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