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Sensorex S8000CD-ORP Product Instruction Sheet

Sensorex S8000CD-ORP Product Instruction Sheet

Ph/orp electrode platform

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8000 Series pH/ORP Electrode Platform
Product Instructions
Introduction
Congratulations on your purchase of your Sensorex S8000
series electrode platform. The platform is designed in a modu-
lar fashion with the flexibility to use only the parts needed, or
to add or modify installation and interface requirements with
little or minimal cost impact. All mounting adapters and cables
are designed to be reuseable. Replace only the electrode car-
tridge as needed.
Electrode Care and Use Tips
1. The S8000 pH and ORP electrodes are shipped with a cap
containing a solution of pH 4 buffer and potassium chloride.
The cap should remain on the electrode until it is used. If the
electrode is used infrequently the cap and its solution should
be saved and the electrode stored in it. Store pH and ORP
electrodes in pH 4 buffer if soaking solution is discarded.
Before using the pH electrode remove the tape around the
top of the black cap then slide the black cap off of the
electrode. Next, remove small o-ring under black cap and keep
with black cap or discard (SEE FIG 1A).
2. Electrodes are a form of battery and have limited shelf lives.
Electrodes in inventory should be rotated so that the older
electrodes are used first. The date code is stamped on each
electrode by fiscal week and year (Example: 4608 = week 2 of
November 2008). See FIG 2.
3. After exposure to a sample, buffer or rinse solution, carryover
can be minimized by blotting—never by wiping—the elec-
trode with a clean non-abrasive paper or a clean cloth towel.
Do not use a brush on pH glass.
4. As a rinse solution, measure and use a portion of the next
sample or buffer. This action will minimize carryover
contamination.
5. When calibrating pH electrodes, use a buffer close in value to
that expected from the sample for one-point calibrations or as
the second buffer for two-point calibrations (See below). This
action will minimize span errors. ORP electrodes are typically
not calibrated. However, a solution to verify electrode perfor-
mance should be used periodically. 225mV solution, Zobell's
solution (Part no. B225), is a good choice for single point
verification.
Parts covered by this product data sheet include:
S8000CD, S8000CD-ORP, S8000-HF, S8000CD-LC, S8000CD-ORP-LC,
EA890, EA891, EA899, EA899TC, EM800, EM801, EM802, S853, S855,
FC800, FC801, FC804, FC805, FC806
Page 1 of 12
PRODUCT INSTRUCTION SHEET
FIG. 1
FIG. 2
FIG. 1A
Form: InstrS8000-Rev B [Rev: 2015-11-09]
©2011 Sensorex Corporation

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Summarization of Contents

Electrode Care and Use Tips
Electrode Storage and Preparation
Proper storage in buffer solution and preparation for use.
Shelf Life and Inventory Rotation
Rotate electrode inventory to use older ones first.
Handling After Sample Exposure
Blot electrodes after use, never wipe, to minimize carryover.
Rinse Solution for Carryover
Use next sample or buffer for rinsing to minimize contamination.
Calibration Buffer Selection
Choose buffer pH close to sample for accurate calibration.
Mechanical Installation
Submersion Installation With ATC
Instructions for installing electrode cartridges into housings with ATC.
Electrode Aging and Replacement
Aging affects electrode performance; replacement criteria.
Temperature Effects on Readings
Temperature affects electrode output and actual measured values.
Checking for Surface Coatings
Inspect electrode surface for coatings before concluding replacement.
Reading Stabilization Time
Allow time for readings to stabilize, especially in samples.
Product Specifications
Electrode Specifications
Technical details for S8000CD, S8000CD-HF, and S8000CD-ORP electrodes.
Cable Connections
Wire designations for S853 and S855 cable connections.
Mounting Hardware Electronic Module Specifications
Specifications for FC800, FC801, EM800, EM801, EM802.
Electrode Calibration Guidelines
Frequency of Calibration Factors
Factors influencing calibration frequency: accuracy, cost, application, stability.
System Calibration Concepts
Calibrate electrode and meter as a system; recalibrate when changing components.
Two-Point Calibrations
Preferred method to correct offset and span errors using two buffers.
Grab Sample Calibrations
Method for calibrating in-situ by comparing system to lab meter.
Intermittent Operation and Storage
Electrode Storage During Downtime
Store electrodes in buffer solution or bottle to prevent drying.
ORP Calibration Standards
Information on ORP calibration standards and quinhydrone use.
Electrode Cleaning Tips
Soft Coatings Removal
Remove soft coatings by stirring, wiping with soft cloth; no brushes.
Hard Coatings Removal
Chemically remove hard coatings with appropriate mild chemicals.
Oily or Organic Coatings Removal
Use detergents or solvents; avoid acetone on CPVC bodies.
Protein-Based Coatings Removal
Use enzyme-based cleaners; avoid abrading pH electrodes.
ORP Electrode Abrasion
Gently abrade ORP surface with 600 grit paper if needed.
Electronic Modules
EM800 Unity Gain Amplifier
Module for sending signals up to 1000 feet remotely.
EM801 Differential Amplifier
Module requiring EA899TC adapter for solution ground.
EM802pH Blind Transmitter
Factory calibrated 4-20mA loop-powered transmitter module.
EM802ORP Module
Module for ORP applications, compatible with specific adapters.
Connector Diagrams
EM800 & EM801 Connector Diagram
Diagram showing connections for EM800/EM801 to S853/S855 cables.
EM802 Connector Diagram
Diagram showing connections for EM802 to S853 cable.
Troubleshooting Your S8000 System
General Troubleshooting
Check electrical connections and o-ring greasing for system issues.
Electrode Module Troubleshooting
Troubleshooting specific issues for EM800, EM801, and EM802 modules.
Electrode Adapter Troubleshooting
Steps to verify electrode adapter functionality and diagnose issues.
pH Electrode Troubleshooting Table
Table of common pH electrode symptoms, causes, and corrective actions.