Water quality parameters include temperature, ph, dissolved oxygen, specific conductance, oxidationreduction potential orp, and turbidity. Frequency of sampling and daily order of events are specified in the uws sampling plan sop. Laboratory analysis of water samples for conductivity using the coleparmer traceable portable conductivity meter. This document is the standard operating procedure sop for conducting field measurements of ph, conductivity, and temperature using a handheld multiparameter meter and sensor. Oakton pc 700 bench series ph conductivity cf meter 8. Simply attach the conductivity \tds electrode to the meter ensure that the atc mode has been selected in the setup menu the atc indicator will light on the lcd. Standard operating procedure for calibration of field instruments temperature, ph, dissolved oxygen, conductivityspecific conductance, oxidationreduction potential, and turbidity pdf 19 pp, 341 k, revised. Each meter includes a convenient slideout calibration card for quick reference. Standard operating procedures for measuring ph, conductivity, and temperature. Always calibrate the conductivity meter with the sodium chloride. Sop 52 verification and adjustment of digital conductivity.
This feature allows ec measurements from various temperatures to be compared. Table of contents 1 introduction 5 2 safety measures 6 3 installation 8 3. The conductivity meter a typical conductivity meter applies an alternating current i at an optimal frequency1 to two active electrodes and measures the potential v. Summary of the test method the conductivity test is a 3 stage method. The conductivity meter then uses the conductance and cell constant to display the conductivity. Calibration and performance of a conductivity system to meet usp 23 page 2 of 11 thornton associates february 1, 2002 iii. Rinse with water and gently blot dry with a paper towel. Product specifications and appearance, as well as contents of this manual are. Automatic buffer recognition for 8 kinds of conductivity standards. Record the date, your initials, season, conductivity standard strength and all meter numbers on the conductivity calibration data sheet. Standard operating procedure to calibrate the conductivity meter by 0. Ideally, the sample is analyzed within 8 hours of collection. Conductivity meters must be calibrated to provide accurate results. This manual describes the operation of the benchtop conductivity meter laqua ec1100.
As seen in the animation, the probe is placed into a solution and the current flowing from ring 1 to. To calibrate the equipment for reliable and accurate results. One of the most common designs for a conductivity meter is the 4 ring probe system. Designed for your water quality applications measuring ph, conductivity, tds, salinity, dissolved oxygen do, orp and ise, the hach hq40d portable multi meter is a two channels advanced handheld digital meter that takes the guesswork out of measurements. Be sure to read this manual before using the product to ensure proper and safe operation of the product. This flexible meter perfectly combines easytounderstand operation with a high level of measurement accuracy and outstanding reliability. To verify meter calibration, refer to meter calibration verification. Conductivity benchtop meter with automatic temperature. Check the conductivity meter reading against the value obtained in step 2. Retrieve the conductivity meter, a 100 ml glass flask, and an up to date srmcrm. Adjust the conductivity meter if possible and needed. Operation of the meter is simplified to calibration, range selection, and adjustment of the temperature compensation coefficient. If results are within 2 % of expected, calibration is met. Conductivity is used widely to determine the level of impurities in water supplies for domestic consumption as well as industrial use.
All models except for do 2700 include an electrode arm and metal bracket which can be easily attached to the left or right side of the meter according to your preference. This procedure is applicable to calibrate the conductivity meter. A guide to field measurements using an optical dissolved oxygen meter and other handheld meters. Toc calibration conductivity calibration temperature. A guide to ph, conductivity, and temperature field measurements using a handheld multiparameter meter and other handheld meters. Production supervisor officer shall be responsible for calibration of production instruments as per this sop for instruments which shall be calibrated inhouse. A conductivity meter measures an aqueous solutions ability to transmit an electrical current. Conductivity sensor calibrations to meet industry requirement3. Check the expiration dates on the conductivity standard unopened bottles to ensure there is enough for the next seasonal conductivity calibration. Introduction this chapter provides information on how to apply electrical conductivity measurements hereafter referred to as. Standard operating procedure for glnpo specific conductance. Turn on the first meter and allow it to complete its selftest procedure. Also safely store the manual so it is readily available whenever necessary.
Power supply as specified at time of ordering the product 5. Allow time for the reading to stabilize on the primary reading. Calibration and performance of a conductivity system to. The hi2315 is a basic and affordable conductivity benchtop meter that comes with a fourring potentiometric ec probe with a builtin temperature sensor.
Conductivity calibration standard at thomas scientific. Many conductivity meter are also equipped to handle single point andor multipoint calibration. Additionally, sops for other meters that measure these parameters are included. The tds and conductivity range, discussed below, can be set automatically or manually. Standard operating procedure turbidity, turbidimeter. Both the current and the potential are used to calculate the conductance iv. Each scale on the meter may require separate calibration prior to use. This may be done by turning a small screw on the conductivity meter, using a suitable tool, until the value on the conductivity meter matches the value obtained in step 2. From setup menu, choose cal calibration and press key to set known conductivity value, immerse conductivity electrode into calibration solution, press enter key and meter is automatically calibrated. For people with disabilities, this document is available on request in other formats.
As soon as one step is passed, the conductivity attribute is passed. Sop for operation and calibration of conductivity meter. Operating manual 451 050 the electrode stand requires minimal assembly refer to the diagram below. Dip the conductivity electrode into the sample beyond the upper steel band utilize the fill line on the outside of the probe guard for reference. Compare to the conductivity standard table see table 1 below. Benchtop conductivity meter laquaec1100 instruction manual. We offer customers precision functioning and high result accuracy based pico ph conductivity meters.
This consists of a calibrated conductivity sensor, patch cable, 316l ss flow housing, holding brackets, sop for calibration, pump, power supply, and miscellaneous connectors and. Chloride certified 500 ppm chloride standard is purchased from a laboratory supply company. When the sensor is placed in an electrolyte solution and an alternating voltage is applied to the electrodes, a current, carried by the motion of ions in the. Standard operating procedures for measuring dissolved oxygen. After the initial screen with all the 8s, record the next number that shows on the screen a number near 5. The meter is supplied complete with conductivity probe with 1 meter cable and calibration solution. After receiving a new conductivity meter remove the electrode cap and soak the meter for a few minutes in alcohol to remove oils. Hq40d portable multi meter ph, conductivity, salinity, tds. To provide guideline for operation and calibration of conductivity tds meter. The effect of temperature on conductivity measurement authors. This standard operating procedure is applicable for formulation plant of pharmaceutical company name with location. For a complete calibration flow, temperature, conductivity, and toc, the following equipment is required.
Uses advanced and original conductivity measurement technology. Glass bodied conductivity cell with atc k1 027 0 3. The calibration procedures for most conductivity meters are quite similar. Industries that employ this method include the chemical, semiconductor, power generation, hospitals, textile, iron and steel, food and beverage, mining. The purpose of this standard operating procedure sop is to provide a framework for calibrating field instruments used to measure water quality parameters for groundwater and surface water. The effect of temperature on conductivity measurement. Conductivity calibration solutions at thomas scientific. If there is not make sure you let the staff in the office know. The procedures typically involve using a conductivity standard to determine the meters accuracy. You may need a pdf reader to view some of the files on this page. Procedure for conductivity meter with probe, verification and adjustment turn on the water system in the volume laboratory. Conductivity sensors theory application data sheet ads 43024 july 2010 background a typical contacting conductivity sensor consists of two metal electrodes separated by a fixed distance. The meter is capable of calibrating up to 5 points using standard solution. To provide guideline for operation and calibration of conductivitytds meter.