EDT directION QC355TX User Manual

Table of Contents

Section 1 - Introduction and Set Up

Section 2 - pH Calibration & Measurement

Section 3 - Use with a Printer or Computer

Section 4 -

Section 5 -

Appendix 1 - pH Electrodes

Troubleshooting

Specification

QC355TX - Routine QC pH Meter - Users Manual

SECTION 1 - Introduction

Description

The QC355(Tx) pH meter is a simple-to-operate bench pH meter. The meter
utilises automatic calibration to one or two points: automatic temperature
compensation is compulsory and the inbuilt calibration clock reminds the user
when re-calibration is necessary.

Unpacking

Verify that you have received all equipment. If you have any questions about the
shipment, please call EDT Direct ION Ltd. or your agent.
When you receive the shipment, inspect the container for any signs of damage.
Note any evidence of rough handling in transit. Immediately report any damage to
the agent.

Note

The carrier will not honour any claims unless all shipping material is saved for
their examination. After examining and removing contents, save packing material
in the event that re-shipment be necessary.
The following items are packed in the box:

QC355TX Meter E8051 Temperature Probe E8061 Electrode Stand
AC Adapter 9V Battery pH Buffers 4,7,10 Operator’s Manual

Setting Up - AC Operation

Only use the approved power adaptor supplied
Check that the adaptor is the correct voltage for your power supply
Plug the adaptor into the power socket at the back of the meter, then connect to
the AC supply.

Battery Installation

Approximately 24 hours of continuous use is afforded by the 9V battery.
The BAT flag appears on the display to indicate a low battery.
To install or replace the battery, slide off the back cover
Remove the old battery and insert a new one ensuring that the polarity is correct
Replace back cover.

Figure 1. Bottom view of instrument
showing power connections

Setting Up (Continued)

A Note on Electrodes

pH, Ion Selective and Redox electrodes may all be used with the QC355. These
may be combination or half-cell types. Combination or sensing half-cells should
have a BNC terminal and be connected to the socket marked pH/ION input at the
back of the meter. Reference half-cells should have a 4mm bunched terminal
and be connected to the socket marked REF. Always refer to electrode
instructions before use. See also, Appendix 1.

Figure 2. Rear view of QC355(Tx)