Thermo Scientific Russell RL060P User manual

Russell RL060P
User Guide

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Table of Contents
Chapter I
Introduction ........................................................ 1
Chapter II
GettingStarted...................................................... 2
Chapter III
Calibration.......................................................... 6
Chapter IV
Measurement.......................................................14
Chapter V
ElectrodeCareandMaintenance........................................15
Chapter VI
Troubleshooting .....................................................16
Chapter VII
Specification........................................................17
Chapter VIII
OrderingInformation ................................................ 18
Chapter IX
AssistanceandWarranty ............................................. 20
Chapter X
DeclarationofConformity............................................. 21
Chapter XI
WEEECompliance.................................................. 22

1Thermo Scientific Russell RL060P pH Meter User Guide
Chapter I
Introduction
Thank you for purchasing the RL060P pH meter. This microprocessor-based handheld
meter is economical and easy to use. It has a large custom LCD (Liquid Crystal
Display) for clear and easy reading.
The RL060P pH meter measures pH and temperature (˚C).
Included with your meter are 4 alkaline AAA batteries, sensor, user guide and a
warranty card. Some models also include a rubber armor. To order other accessories
and buffer calibration or standard solutions, please refer to please refer to the
Ordering Information section for more information.

Thermo Scientific Russell RL060P pH Meter User Guide2
Chapter II
Getting Started
Description of Keypad Functions
The RL060P pH meter has four keys on its splash-
proof keypad with tactile feedback. The common
keys include , , and .
: Powers meter on and off. Meter starts up
in the mode that you last switched off from.
: Selects measurement mode for mV, pH and
temperature.
: Allows calibration for pH, mV or temperature,
and will also abort the calibration without
confirming any set value.
(hold): Freezes the measured reading for easy
viewing.
(enter): Confirms the calibration value.
Description of LCD Annunciators
The meter has a large custom LCD that consists
of 3 1/2-digit segments and operation annunciators
for pH, mV or °C (temperature). Other annunciators
include “HO” (when the HOLD function is
activated) and “LO” (low battery condition).

3Thermo Scientific Russell RL060P pH Meter User Guide
Inserting & Removing the Rubber Armor
Some models also include a rubber armor
1. To remove the meter from the rubber armor, push
the bottom edges of meter out until it is completely
separated from the armor. Ensure that the cables
on the pH electrode or the temperature probe are
not connected.
2. To insert the meter into the rubber armor, slide in
from the top of meter before pushing the bottom
edges down and set it into position. Lift up the
stand at the back of the meter for bench top
applications if necessary.
Inserting New Batteries
The battery compartment is found at the back of
instrument. To open the battery compartment, push
in the direction of the arrow and lift up the cover.
Note the polarity of the battery before inserting it
into position. After replacement, place the cover
back and press down until it locks tight.

Thermo Scientific Russell RL060P pH Meter User Guide4
Battery Replacement
A “LO” annunciator in the LCD alerts you when
battery power is running low. The replacement
batteries are 4 alkaline AAA.
Caution: Power off the meter when changing
batteries.
Connecting the Electrode and Temperature Sensor
To connect the electrode into meter, align the
connector slots with the posts of meter’s socket
and rotate the connector clockwise until it locks.
Do not force when connecting. To remove, simply
rotate the connector in anti-clockwise direction until
it unlocks, and slide the connector off the socket.
Insert the mini phono jack of the temperature
sensor into the socket on the meter. Unplug the
phono jack when it is not in use or if you measure
pH without any temperature compensation.
Condition the pH Electrode
Condition the pH electrode before use or if it has not been in use for a long time. This
can be done by soaking it into a container filled with pH 4 buffer solution for at least
1 hour. Rinse with water before proceeding to calibrate the electrode with the meter.
LO

5Thermo Scientific Russell RL060P pH Meter User Guide
Switching the Meter On
1. Press to power up your meter. All LCD
segments display momentarily as the meter
performs a self-diagnostic test
2. Press to choose your desired mode of
measurement. The corresponding annunciator
displays in the LCD.
In temperature mode, the measured reading
can be 25.0 ˚C (factory default). The last
calibrated temperature value will appear if there
is no temperature probe connected, or current
measured value will appear if a temperature
probe is connected.
3. The LCD displays “Or” if the meter reading
exceeds the maximum or “Ur” if under minimum
measurement range. Refer to Chapter VII,
Specification.

Thermo Scientific Russell RL060P pH Meter User Guide6
Chapter III
Calibration
pH Calibration
The meter is capable of calibrating up to three points using USA or NIST (nSt) pH
buffer standards or two points with low ionic strength (Pb) pH buffer standard. All
new calibration values will automatically override existing data.
USA pH 4.01, 7.00 and 10.01
NIST pH 4.01, 6.86 and 9.18
Pb pH 4.10 and 6.97
It is recommended that you perform at least a two point calibration at room
temperature (25 ˚C) using standard buffers, starting with the first buffer at pH 7.00
(USA), pH 6.86 (NIST) or pH 6.97 (Pb) followed by other buffer values.
A one point calibration should be performed with a pH buffer value closest to the
expected sample value being measured. Otherwise calibrating at pH 7.00, pH 6.86 or
pH 6.97 is advisable.
The meter has automatic buffer recognition that identifies the correct pH buffer values
during calibration. If non-standard pH buffers other than the above standards are
used, or the electrode has worn out, the LCD will flash “Er1”. Press the to abort
calibration and resume measurement. In general all pH buffer values have the window
of up to ± 1 pH tolerance during calibration.
Ensure that you use new pH buffer solutions or sachets during calibration. Do not
reuse buffer solutions as it may be contaminated and affect the calibration and
accuracy of measurements. Always store buffer solutions in a dry, cool environment.
Before use, remove the plastic protective cap of pH electrode and condition the glass
bulb by soaking it in tap water for 1-2 hours. This hydrates the glass bulb if electrode
is too dry or has not been used for a long period of time. Always rinse the probes with
tap water or rinse solution before and after each calibration/sample measurement
to avoid cross-contamination. For details refer to Chapter V, Electrode Care and
Maintenance.