Sper scientific 850062 User manual

Test Tube pH Pen
850062
Test Tube pH Pen with
Automatic Temperature
Compensation (ATC)
850063

2
CONTENTS
INTRODUCTION ........................2
FEATURES.............................3
MATERIALS SUPPLIED ..................3
FRONT PANEL DESCRIPTION ............4
LCD DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . .4
CALIBRATION ..........................5
MEASUREMENT PROCEDURES ..........7
TROUBLESHOOTING...................11
ERROR CODES. . . . . . . . . . . . . . . . . . . . . . . .12
BATTERY INSTALLATION
AND REPLACEMENT ...................12
CARE AND MAINTENANCE..............14
SPECIFICATIONS ......................15
WARRANTY ...........................16
INTRODUCTION
This Sper Scientic Test Tube pH Pen
(Model 850062/ 850063) is designed for easy
calibration and simple, accurate measurement.
The 12 cm long probe is capable of testing
samples even in narrow-mouthed containers.
The waterproof meter provides one-button,
three-point calibration with customizable
calibration values. Other features include
a data-hold function, automatic shuto󰀨 and
low-battery indicator. Model 850063 also
measures temperature and provides automatic
temperature compensation.

3
FEATURES
• Waterproof IP65 housing
• Hold function
• One-button, three-point calibration
• Automatic bu󰀨er recognition for
calibration accuracy
• Customizable calibration values
• Measuring stability indicator
• Protective storage bottle for sensor
• Low-battery indicator
• Automatic shuto󰀨
• Dual pH and temperature display
(Model 850063)
• Monitors temperature in °F or °C
(Model 850063)
MATERIALS SUPPLIED
• Meter with protective storage bottle
for sensor
• Two CR2032 button batteries
• Instruction Manual

4
FRONT PANEL DESCRIPTION
LCD DISPLAY
LCD DISPLAY
-The 1st display shows the measured pH
reading.
-The 2nd display shows the temp. (8692)
-
Auto Temp. Compensation
- =Data hold
Cal=Calibration mode
-ATC=
8692
8691
8691/92
8691/8692
KEYPAD
OPERATION
1. Remove the probe storage bottle from
meter to expose the electrode out. It is
n ormal if you find white crystals are
present on the c ap or electrode
assembly.
3
CAL
H
CAL
H
ATC
F
C
O
O
H
1. LCD
2. HOLD
3. CAL (calibration)
4. Power
850062
1. PH reading
2. Data-hold indicator
3. Calibration
4. Low-battery icon
850063
1. PH reading
2. Data-hold indicator
3. Calibration
4. Automatic Temperature
Compensation (ATC)
5. Low-battery icon
6. Temperature reading
7. Temperature units
1
2 3
4
LCD DISPLAY
-The 1st display shows the measured pH
reading.
-The 2nd display shows the temp. (8692)
-
Auto Temp. Compensation
- =Data hold
Cal=Calibration mode
-ATC=
8692
8691
8691/92
8691/8692
KEYPAD
OPERATION
1. Remove the probe storage bottle from
meter to expose the electrode out. It is
n ormal if you find white crystals are
present on the c ap or electrode
assembly.
3
CAL
H
CAL
H
ATC
F
C
O
O
H
1
2 3 4
1
2 3 54
6 7

5
CALIBRATION
The meter should be calibrated regularly with
standard USA, NIST or DIN bu󰀨ers to ensure
accuracy. If the meter is used frequently, daily
calibration is recommended.
Voltage Range for Each Calibration Point
pH 4.00 97 mV ~ 250 mV
pH 7.00 -60 mV ~ 60 mV
pH 10.00 -250 mV ~ -97 mV
Calibration Procedure
1. Press POWER button to turn the meter on.
2. Pour the pH bu󰀨er into a clean container
and place the electrode into the bu󰀨er. We
recommend starting with a middle range
bu󰀨er such as pH 7. Make sure the electrode
is completely immersed in the bu󰀨er.
3. Press CAL to enter Calibration Mode.
“CAL” displays for one second, followed by
the pH value. Model 850063 also displays
the temperature.
Calibration is necessary and should be
done regularly, recommended everyday
if the meter is used often. The unique
calibration design of the meter features
automatic buffer recognition to avoid errors.
CALIBRATION MODE (CAL)
7
1. Power on the meter.
2. Place the electrode into a buffer solution
(4,7or10), pH7 should be calibrated first
and then 4 or 10 pH for better accuracy
3. Press " " to enter pH calibration
mode. The icon "CAL” will appear on the
LCD for one second and then pH value
(4,7 or 10) will be displayed on the LCD.
8691/8692 Calibration
4. If probe or buffer is in error:
If the buffer is incorrectly inserted or
the probe is damaged or the probe
can not detect buffer in below voltage
range, the meter will escape calibration
mode automatically after 10 seconds.
Text "End" will appear on
the LCD in one second
and then will go back to
normal status.
CALATC
F
O