Standard operating procedure turbidity, turbidimeter. 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. To calibrate the equipment for reliable and accurate results. A guide to ph, conductivity, and temperature field measurements using a handheld multiparameter meter and other handheld meters. To provide guideline for operation and calibration of conductivity tds meter. The procedures typically involve using a conductivity standard to determine the meters accuracy. Toc calibration conductivity calibration temperature. You may need a pdf reader to view some of the files on this page. Hq40d portable multi meter ph, conductivity, salinity, tds. Check the expiration dates on the conductivity standard unopened bottles to ensure there is enough for the next seasonal conductivity calibration. After the initial screen with all the 8s, record the next number that shows on the screen a number near 5. Oakton pc 700 bench series ph conductivity cf meter 8.
Conductivity calibration standard at thomas scientific. The meter is capable of calibrating up to 5 points using standard solution. This procedure is applicable to calibrate the conductivity meter. Additionally, sops for other meters that measure these parameters are included.
Benchtop conductivity meter laquaec1100 instruction manual. This standard operating procedure is applicable for formulation plant of pharmaceutical company name with location. Frequency of sampling and daily order of events are specified in the uws sampling plan sop. 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 manual describes the operation of the benchtop conductivity meter laqua ec1100. Conductivity calibration solutions at thomas scientific. 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. Procedure for conductivity meter with probe, verification and adjustment turn on the water system in the volume laboratory. 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.
Power supply as specified at time of ordering the product 5. The effect of temperature on conductivity measurement authors. Table of contents 1 introduction 5 2 safety measures 6 3 installation 8 3. Be sure to read this manual before using the product to ensure proper and safe operation of the product. 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. Conductivity is used widely to determine the level of impurities in water supplies for domestic consumption as well as industrial use. This document is the standard operating procedure sop for conducting field measurements of ph, conductivity, and temperature using a handheld multiparameter meter and sensor. 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. Conductivity sensor calibrations to meet industry requirement3. Standard operating procedures for measuring ph, conductivity, and temperature. Compare to the conductivity standard table see table 1 below. Water quality parameters include temperature, ph, dissolved oxygen, specific conductance, oxidationreduction potential orp, and turbidity.
Turn on the first meter and allow it to complete its selftest procedure. For a complete calibration flow, temperature, conductivity, and toc, the following equipment is required. Allow time for the reading to stabilize on the primary reading. Standard operating procedure to calibrate the conductivity meter by 0. Check the conductivity meter reading against the value obtained in step 2. Product specifications and appearance, as well as contents of this manual are. Summary of the test method the conductivity test is a 3 stage method. Uses advanced and original conductivity measurement technology. If there is not make sure you let the staff in the office know. The effect of temperature on conductivity measurement. 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. Always calibrate the conductivity meter with the sodium chloride.
Adjust the conductivity meter if possible and needed. 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. Many conductivity meter are also equipped to handle single point andor multipoint calibration. As seen in the animation, the probe is placed into a solution and the current flowing from ring 1 to. We offer customers precision functioning and high result accuracy based pico ph conductivity meters.
Operation of the meter is simplified to calibration, range selection, and adjustment of the temperature compensation coefficient. The calibration procedures for most conductivity meters are quite similar. Sop for operation and calibration of conductivity meter. The conductivity meter then uses the conductance and cell constant to display the conductivity. Each scale on the meter may require separate calibration prior to use. Each meter includes a convenient slideout calibration card for quick reference. The meter is supplied complete with conductivity probe with 1 meter cable and calibration solution. This is a potentiometric system that provides an alternating current across all four rings. Conductivity benchtop meter with automatic temperature.
Retrieve the conductivity meter, a 100 ml glass flask, and an up to date srmcrm. For people with disabilities, this document is available on request in other formats. Chloride certified 500 ppm chloride standard is purchased from a laboratory supply company. Ideally, the sample is analyzed within 8 hours of collection. To verify meter calibration, refer to meter calibration verification. Automatic buffer recognition for 8 kinds of conductivity standards. Production supervisor officer shall be responsible for calibration of production instruments as per this sop for instruments which shall be calibrated inhouse. As soon as one step is passed, the conductivity attribute is passed. After receiving a new conductivity meter remove the electrode cap and soak the meter for a few minutes in alcohol to remove oils. Industries that employ this method include the chemical, semiconductor, power generation, hospitals, textile, iron and steel, food and beverage, mining. Standard operating procedure for glnpo specific conductance.
Sop 52 verification and adjustment of digital conductivity. Operating manual 451 050 the electrode stand requires minimal assembly refer to the diagram below. To provide guideline for operation and calibration of conductivitytds meter. This feature allows ec measurements from various temperatures to be compared. Standard operating procedure for calibration of field instruments temperature, ph, dissolved oxygen, conductivityspecific conductance, oxidationreduction potential, and turbidity pdf 19 pp, 341 k, revised.
Standard operating procedures for measuring dissolved oxygen. If results are within 2 % of expected, calibration is met. The tds and conductivity range, discussed below, can be set automatically or manually. Rinse with water and gently blot dry with a paper towel. Calibration and performance of a conductivity system to meet usp 23 page 2 of 11 thornton associates february 1, 2002 iii. A conductivity meter measures an aqueous solutions ability to transmit an electrical current. 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. The meter reading is then adjusted to meet the value provided for the standard.
The hi2315 is a basic and affordable conductivity benchtop meter that comes with a fourring potentiometric ec probe with a builtin temperature sensor. 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. Both the current and the potential are used to calculate the conductance iv. Conductivity meters must be calibrated to provide accurate results. To lay down a general procedure for calibration of production instruments. Also safely store the manual so it is readily available whenever necessary. Introduction this chapter provides information on how to apply electrical conductivity measurements hereafter referred to as. Glass bodied conductivity cell with atc k1 027 0 3. This flexible meter perfectly combines easytounderstand operation with a high level of measurement accuracy and outstanding reliability. A guide to field measurements using an optical dissolved oxygen meter and other handheld meters. 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.