Operation Manual 2016.11 Calibration Kit www.critical-environment.com Calibration Kit - Operation Manual 2016.11 standard Calibration kit ContentS P/N: cet-715a-sdp q w er t y # 2 u i o w Description a s Replacement Part Number q Regulator for fixed flow @0.5 LPM for 34 L, 58 L, 74 L and 103 L cylinders REG-0715-CR2 w Calibration adapter plug with O-ring and two zeroing port plugs (adapter plug fits industry standard internal sensor vents) CET-7000-CAP e Humidification chamber for calibrating solid state refrigerant sensors CET-8000-HC r Spare humidification sponge CET-8000-HCS t Calibration adapter cup for remote (ESH) sensors CET-8000-ESH y Magnetic wand for non-intrusive calibration (2 5/8” x 1/4” hexagon) For use with the LPT-A and SCC CET-MW u Brass fitting to convert fixed flow regulator for use on 15 L and 17 L cylinders REG-ADAPTER i Carrying case CET-715A-CK1 o Calibration adapter cup for splash guard CET-4700-SCC a Sensor extracting tool for replacing used catalytic and solid state refrigerant sensors CET-8000-SRT s Teflon lined tube (2ft) for calibrating sticky gases (see NOTE on next page) n/a © 2016 All rights reserved. Data subject to change without notice. 2016.11 Calibration Kit - Operation Manual The Calibration Kit is not suitable for use with our YES product line. SAMPLE DRAW Calibration kit P/N: cet-715a-sdp The Sample Draw Calibration Kit contains the same items as the Standard Kit with the addition of a 1.0 LPM demand flow regulator. Instructions A bump test will help you determine if a sensor requires calibration. If the sensor still does not respond as it should after a successful calibration, it probably requires replacing. Temperature affects calibration. It is important to ensure the gas is at the appropriate temperature during calibration. If the sensor is being used in an extreme temperature range, calibration should be done in that same temperature range. Regulators & Flow Calibration gases that are lighter than (NH3, H2, CH4 etc. ) or the same weight as air (CO, O2, NO, C2H4, etc.) should be flowed at 0.5 LPM. Gases heavier than air (NO2, O3, CL2, C3H8, refrigerants, SO2, F2, etc.) should be flowed between 0.5 and 1.0 LPM. Fixed flow regulators provide more accuracy. Adapters The proper calibration adapter should be utilized to allow the gas to properly diffuse around the sensor. A different adapter will be required if the gas detector has a splash guard installed. Humidifier For refrigerant sensors (solid state), an inline humidifier is required for all operations with bottled gas (bump test, zero and span). Catalytic, Electrochemical, Infrared and PID Sensors Before flowing zero air and span gas, remove the sponge (r) from the humidification chamber (e) and do not use. catalytic sensors require oxygen to work and thus the user MUST flow clean air or oxygen to obtain a true zero and the span gas must have “air” balance, not N2 balance. If calibrating an infrared Carbon Dioxide CO2 sensor, it must be zeroed with 100% Nitrogen (N2). All other infrared sensors for combustibles and refrigerants, along with PIDs should be zeroed with air. NOTE: Ozone (O3), Chlorine (Cl2), Hydrogen Chloride (HCl), Ammonia (NH3) and Nitrogen Dioxide (NO2) are considered to be sticky gases, which means they adhere to surfaces. When calibrating these gases, use Teflon lined tubing so the gas doesn’t saturate and adhere to the tubing, weakening the concentration of the flow of gas. Also, keep the length of the Teflon tubing to no more than 2 - 3 ft so the gas flow © 2016 All rights reserved. Data subject to change without notice. 3 Calibration Kit - Operation Manual 2016.11 concentration doesn’t lessen over the distance from the gas cylinder to the sensor. NOTE: CETCI does not use or sell cylinders of Chlorine gas due to the instability of the gas and the difficulty to get accurate readings from that source. We recommend that you use a Chlorine gas generator. Contact CETCI or your Regional Sales Manager for more information. NOTE: After a substantial warm up period, an Ethylene Oxide sensor should be zeroed on site if the ambient temperature is above 22°C (71.6°F). This particular sensor has a drift factor that can be as much as 1 ppm if the temperature rises to 25°C (77°F). With the low set point you could experience false alarms. NOTE: During calibration, when flowing span gas on an Ammonia sensor, if the reading climbs higher than the calibration point after applying gas for 3 minutes, use that reading as the calibration point. It should be around 300 ppm. Oxygen Sensors When calibrating an Oxygen sensor, the process is reversed. You need to do the span first and then the zero. Flow Nitrogen (N2) over Oxygen (O2) sensors before attempting to null adjust them. If the service person is confident of air quality and is careful (do not exhale in the direction of the Oxygen sensor being serviced while span adjusting), oxygen in the breathing environment can be used as a fairly accurate source of span gas (20.9% volume) “in a pinch”. It is not recommended to use this procedure for all span adjustments of Oxygen sensors. Solid State Refrigerant and TVOCs Sensors Solid-state sensors require oxygen to work and thus the user MUST flow clean air or oxygen to obtain a true zero and the span gas must have “air” balance, not N2 balance. Flowing dry gas over solid state refrigerant sensors can result in negative a reaction and inaccurate readings. Using a humidification chamber increases the humidity and recreates a real-world environment for the sensor. Wet the sponge (r) with water and gently squeeze out the excess. It should be quite damp before reinserting it into the humidification chamber (e). Thread the cylinder regulator (q) onto the cylinder of zero air or span gas, being careful not to cross thread it. Do not over tighten. If the gas cylinder is the 15 or 17 liter size, apply a little Teflon tape to the threads of the brass fitting (u) and thread the fitting onto the cylinder regulator (q). Open the valve of the cylinder regulator by pushing down and turning less than half a turn; zero air or span gas will start flowing automatically at approximately 0.5 LPM. Start flow of zero air approximately 1-minute prior to making zero adjustment of circuit allowing sensor to stabilize. Start flow of span gas at least 2-minutes prior to making span adjustment of circuit. When 4 © 2016 All rights reserved. Data subject to change without notice. 2016.11 Calibration Kit - Operation Manual calibration is complete, remove cylinder regulator from cylinder. If using the humidification chamber, remove the sponge and allow it dry out. For an R11 refrigerant sensor, allow 30 minutes after calibration before considering the LPT-A’s readings valid. The sensor’s response to R11 refrigerant and to humidity levels can affect the readings of the LPT-A and can take up to 30 minutes after calibration to recover and stabilize. Refer to the specific product Operation Manual for complete detailed calibration service and instructions. CALIBRATION GAS Gas Cylinders CETCI offers a range of gas types and concentrations in 17 L, 58 L and 103 L size cylinders. Cylinders of zero air and / or span gas must be ordered separately. They are not included in the Calibration Kit. Gas cylinders cannot be shipped from Canada to other countries, including the USA. GENie Calibration Gas System The GENie Calibration Gas products are an alternative to calibration gas cylinders, offering a family of integrateable and expandable calibraton gas instruments that will generate a variety of gases from one modular instrument. Features: » Hand-held and easy to transport » User adjustable gas concentration created on demand » Long lasting gas sources » Traceable to NIST standards » Non-hazardous for shipping GENie-EC Electrochemical Calibration Gas System for calibrating Chlorine, Chlorine Dioxide, Hydrogen, Hydrogen Sulphide and Hydrogen Cyanide sensors. http://www.critical-environment.com/products/genie-ec.html GENie-O3 Ozone Calibration Gas System for calibration Ozone sensors. http://www.critical-environment.com/products/genie-o3.html GENie-NH3 Ammonia Calibration Gas System for calibration Ammonia http://www.critical-environment.com/products/genie-nh3.html Contact CETCI or your Regional Sales Manager for more information: Unit 145, 7391 Vantage Way, Delta, BC, V4G 1M3, Canada Toll Free: +1.877.940.8741 Telephone: +1.604.940.8741 Fax: +1.604.940.8745 [email protected] www.critical-environment.com © 2016 All rights reserved. Data subject to change without notice. 5 Critical Environment Technologies Canada Inc. Unit 145, 7391 Vantage Way, Delta, BC, V4G 1M3, Canada Toll Free: +1.877.940.8741 Tel: +1.604.940.8741 Fax: +1.604.940.8745 www.critical-environment.com KIT20161115-Calibration-Kit © 2016 Critical Environment Technologies Canada Inc. All rights reserved. Data in this publication may change without notice.