Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Alnor 220B
Summary of Contents for Alnor 220B
- Page 1 OWNER’S MANUAL Hygrometer Probe Model 220B...
- Page 2 LIMITATION OF WARRANTY AND LIABILITY Seller warrants that this product, under normal use and service as described in the operator's manual, shall be free from defects in workmanship and material for a period of one year, or the length of time specified in operator's manual, from the date of shipment to the customer.
-
Page 3: Table Of Contents
TABLE OF CONTENTS Using the 220B Safely ............... 2 Getting Started ................... 3 Preparation for Use ............... 3 Description of Probe..............4 Using the 220B ................... 5 Response Time ................6 Performance Check ................8 Troubleshooting & Maintenance ............. 9 Troubleshooting................ -
Page 4: Using The 220B Safely
32 to 140°F (0 to 60°C) and must not be exceeded. The Model 220B probe can be damaged by exposure to certain chemical environments. See the Maintenance & Troubleshooting appendix in this manual for a partial list of these compounds. -
Page 5: Getting Started
Getting Started The Model 220B is a hand-held hygrometer probe that is used with selected Alnor meters to measure relative humidity and temperature. Calibration information is digitally stored with the probe. Preparation for Use 1. The probe is shipped separately from the meter. Make sure that you have read the owner’s manual for the meter before proceeding with... -
Page 6: Description Of Probe
Description of Probe Index No. Name Description Humidity Sensor Special hygroscopic polymer Temperature Sensor Platinum resistance temperature detector (RTD) Probe Housing Aluminum probe tube Probe Handle Plastic handle Cable with Suppressor Flexible cable Connector 12 pin circular DIN-style connector Lock Ring Threaded ring used to tighten the probe to the meter (5) Cable with Suppressor... -
Page 7: Using The 220B
Using the 220B 1. For maximum accuracy, always hold the probe by the handle. Allow the probe to acclimate to the environment in which the measurements are to be taken. Waving the probe in the air to be measured will accelerate this process. However, if the probe has... -
Page 8: Response Time
Response Time When measuring RH, the 220B probe will exhibit the typical response to changing humidity shown below. For example: the initial reading is 10% RH, and the final reading is 80% RH, the probe will read 10% RH (0% of amount of change) in 0 seconds,... - Page 9 For temperature changes, the 220B typically reacts as shown below:...
-
Page 10: Performance Check
Performance Check Performance of the Model 220B probe should be checked every 12 months. If the probe is used in dirty or toxic environmental conditions, calibration should be checked more often. However, if a calibration check is performed by the user, the following points should be considered: 1. -
Page 11: Troubleshooting & Maintenance
Cable may be damaged. Check cable and connector. Maintenance The Model 220B probe is manufactured with solid state components. However, periodic maintenance consisting of a calibration check should be made every 12 months. The probe should also be checked for signs of physical damage. -
Page 12: Chemical Environments
Chemical Environments Do not use humidity probe in the following chemical environments: Acetaldehyde Ethyl acetate Acetone Acetic acid Methyl chloride Aniline Nitrobenzene Benzaldehyde Oleum Chlorobenzene Perchlorethylene Chloroform Phenol Chlorosulphonic acid Propane Cresols Pyridine Cycohexanone| Sulphurous acid Dichlorobenzene Tetrahydrofurane Dichloroethane Toluene Dimethylformamide Note: There are no user serviceable parts or batteries inside the probe housing. -
Page 13: Appendix A: Theory Of Operation
The probe’s memory and other functional components reside on a printed circuit board located in the cylindrical probe housing. See the block diagram of the probe, Figure 2. Figure 2: 220B Probe Block Diagram... -
Page 14: Humidity Sensor
Humidity Sensor The humidity sensor acts as a capacitor and uses a special hygroscopic polymer as its dielectric. Depending on the humidity of the environment to be measured, a quantity of water proportional to the humidity of the environment is absorbed by the dielectric. When even a small amount of water penetrates the polymer, it causes a variation of capacitance. -
Page 15: Service Information
Service Information Contact TSI Incorporated directly, before returning your instrument. See INSTRUCTIONS FOR RETURN. Follow the procedure carefully as it will expedite processing. Failure to follow the procedure may cause return of the unit unrepaired. Send your instrument to the factory transportation prepaid. To assure fast turn- around time, photocopy and fill out this form with as much detail as possible and attach it to the instrument. -
Page 16: Instructions For Return
Call TSI directly for assistance if necessary. Service/Calibration Contact the Service Department at TSI if you require factory service of your Alnor instrument. The Service Department will provide you with the cost of service or calibration, Return Material Authorization (RMA) number, and shipping instructions. -
Page 17: Ownership/Calibration Log
Ownership/Calibration Log Equipment Log Date of Purchase _______________________________________ Calibration Record ______________________________________ 1. _______________ 2. ______________ 3. _______________ 4. _______________ 5. ______________ 6. _______________ 7. _______________ 8. ______________ 9. _______________ 10. _______________ 11. ______________ 12. _______________ Notes: ________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________... - Page 19 7 oz (200 g) Probe Connector 12-pin circular screw-lock Compatible Instruments The 220B may be used with all versions of the Alnor APM150, CompuFlow 8575, GGA75 and those APM360 meters using a round 12-pin probe connector. Specifications subject to change without notice.
- Page 20 __________________________________________________________________ TSI Incorporated Alnor Products 500 Cardigan Road Shoreview, MN 55126 USA Toll Free (800) 424-7427 Telephone (651) 490-2811 July 2002 Fax (651) 490-3824 Printed in USA www.alnor.com Part No. 116-159-154 Rev. 4 Copyright 2002 TSI Incorporated customerservice@alnor.com...