CAL
HOLD
LCD
Power/
Cal/Hold
BatteryCap
ElectrodesCap
pH610N
/
ORP650N
Operation
Manual
Install four LR44 batteries by
removing, properly inserting the
batteries and then replacing the
battery cover
Getting Started
Thank you for entrusting Jenco for your water quality
measurements. Please follow the steps below to start using
your pH610N or ORP650N tester.
2
Understand the operation modes
The pH610N tester has 3 operation modes and the ORP650N tester has 2
operation modes.
【
Measure Mode
】
Measure Mode is used to make all pH ( for model pH610N ), ORP ( for model
ORP650N ) and temperature measurements.
【
Calibration Mode
】
※
pH610N only
Calibration Mode is used to perform1 or 2 point pH calibration.
【
Hold
Mode
】
Hold Mode is used to hold and lock the display at the most recent
measurement values. Once in Hold Mode, the tester can be removed from
the measuring solution without affecting the displayed measurement values.
Understand keypad operations
5
4
1
Activate the electrode of the
tester by soaking it in pH buffer 4
solution for about 0.5-2hours
Understand the LCD display
(1) Calibration buffer(s)
(2) Low Battery indicator
(3) Calibration mode indicator
(4) Display hold indicator
(5) pH
/
ORP reading
(6) Temperature reading (for °C)
(7) Temperature reading (for °F)
3
6
Turn the tester on
1. Press the “On/Off” key to turn on the tester.
【
Note
】
The tester will automatically turn off after 10 minutes last
keypad use.
Key
Initiating
Mode
Ac on
Func on
CAL
/
HOLD
Measure
Press and hold for 2
seconds
Enters
Calibration
Mode
Press and release
Holds display with or
releases the display
from the most current
measurement values
Calibration
Press and release
Exits Calibration
Mode
On
/
Off
Power On
Press and release
Switches from °C
to
°F
and vice versa
Press and hold for 3
seconds
Power Off
Power Off
Press and release
Power On
(for pH610N)
2
