Subscribe to Our Youtube Channel
Summary of Contents for Edgetech OxyTrans
- Page 1 OxyTrans Loop Powered Two Wire Oxygen Transmitter OPERATORS MANUAL 19 Brigham Street Unit 8 Marlborough, MA 01752 508-263-5900 Fax: 508-486-9348 www.edgetechinstruments.com h2o@edgetechinstruments.com Rev. A April 2009...
-
Page 2: Quick Startup Guide
OxyTrans QUICK STARTUP GUIDE STARTUP 1. Using the supplied Mounting Kit, mount the OxyTrans in position to measure the desired gas. Caution: The cell must be mounted vertically with Digital Display at the top. 2. Connect input and output tubing. See Manual for proper tubing materials. -
Page 3: Table Of Contents
TABLE OF CONTENTS Page 1.0 Quick Startup Guide 2.0 Commitment to Quality 3.0 Introduction 3.1 General Description 3.2 Micro Fuel Sensor 3.3 The Effect of Pressure 3.4 Calibration Characteristics 3.5 Standard Configurations 3.6 Options and Accessories 4.0 Installation 4.1 Mounting 4.2 Plumbing 4.3 Electrical Connections 5.0 Operation... - Page 4 LIST OF ILLUSTRATIONS Page 3-1 Cell I/O Curve 3-2 Standard Configurations 4-1 Mounting Kit 4-2 Mounting the Transmitter 4-3 Electrical Connections 5-1 Digital Display 6-1 Calibration Adjustment LIST OF TABLES Page 3-1 Standard Factory Ranges...
-
Page 5: Commitment To Quality
2.0 EDGETECH INSTRUMENTS INC.'S COMMITMENT TO QUALITY To Our Customers: Thank you for purchasing one of our products. At Edgetech Instruments Inc., it is our policy to provide cost-effective products and support services that meet or exceed you requirements, to deliver them on time, and to continuously look for ways to improve both. -
Page 6: Introduction
3.0 INTRODUCTION 3.1 GENERAL DESCRIPTION The Edgetech Instruments Inc. OxyTrans 2-wire 4 to 20 mA Loop Powered Oxygen Transmitter consists of two sub-systems: 1. The Analyzer Unit, which is an electro-chemical fuel sensor designed for measuring oxygen. 2. The Electronics Unit, which provides sensor signal conditioning, digital display, and electrical analog outputs. -
Page 7: Calibration Characteristics
% Figure 3-1 Characteristic Input/Output Curve for the Oxygen Cell STANDARD FACTORY CONFIGURATIONS The Edgetech Instruments Inc. OxyTrans series of transmitters are available in a number of convenient configurations. These include both vertical and horizontal mounts, so that the digital display may be viewed either from the top or from the front. -
Page 8: Options And Accessories
A number of standard ranges are available. These include: RANGE PARTS-PER-MILLION PERCENT OXYGEN 0 to 10 0 to 100 0 to 1000 0 to 10,000 0 to 1 0 to 25 Table 3-1 Standard Factory Ranges OPTIONS AND ACCESSORIES Other standard configurations include a Panel Mount unit with optional safety barriers. - Page 9 Figure 3-2e Panel Mount Unit...
-
Page 10: Installation
Figure 4-1 Mounting Kit through the slots in the sides of the Mounting Plate. Insert the OxyTrans transmitter as shown in Figure 4-2. Tighten the screw, locking the cell housing in place. Do not over-tighten. 4.2 PLUMBING For low percentages of oxygen in the sample gas, proper selection and installation of tubing is critical for successful measurements. -
Page 11: Electrical Connections
The system provides a loop-powered 4 to 20 mA output signal, corresponding to the oxygen measurement range specified. “Loop powered” means that the OxyTrans is powered by the current loop itself. The OxyTrans, power supply, and the (optional) signal-conditioning device used to measure the 4 to 20 mA signal are all connected in a series loop, so that the same current flows through all. -
Page 12: Electrical Connections
Figure 4-3 Electrical Connections Pin 4: – Pin 3: BLUE Output: 4 – 20 mA Load: 0 to 500 Ohms PIN 3 (-) PIN 4 (+) The electrical interface cable supplied is approximately 57 inches (22 cm) long. It is color coded for easy installation. The positive side (Pin 4) is red, and the return side (Pin 3) is blue. -
Page 13: Operation
5.0 OPERATION Operation of the OxyTrans is very simple. Open the shut-off valves on the upstream and downstream sides of the sensor. For most models, there are no switches or other controls. The operator simply has to be sure that the gas flow rate is within the specified range (1 to 2 SCFH, or 0.5 to 1 L/min.), and that new... -
Page 14: Maintenance
MAINTENANCE 6.1 CALIBRATION Although the OxyTrans comes Factory-calibrated, you may wish to recalibrate the unit at some time. Calibration of the OxyTrans is very simple. A calibration gas with a known Oxygen value is required. CALIBRATION ADJUSTMENT SCREW Figure 3... -
Page 15: Out Of Service Procedure
3. If the system has not been used for a long time, recalibrate against an Oxygen standard gas. TROUBLESHOOTING If the OxyTrans displays incorrect or erratic readings of the Oxygen concentration in the measured gas: Possible Causes May Be: 1. Inaccurate calibration. -
Page 16: Cell Replacement
Possible Solutions May Be: 1. Turn the analyzer off, and then back on again. Now proceed to carefully calibrate the analyzer. 2. Check the complete sampling system for leaks, and be sure that everything is tight. 3. Increase the flow rate and/or add downstream tubing in order to dilute or minimize the introduction of oxygen from the room back into the sensor. - Page 17 6.4.2 STORING AND HANDLING OF REPLACEMENT CELLS To have a replacement cell available when it is needed, we recommend that one spare cell be purchased 9-10 months after installing the OxyTrans, or shortly before the end of the cell's one year warranty period.
- Page 18 6.4.4 INSERTION OF A NEW MEASUREMENT CELL Caution: Do NOT touch the sensor membrane. The surface has a small Teflon® membrane which can be destroyed by contact. The sensor will have to be replaced if the membrane surface is destroyed. For installation of the new cell, proceed as follows: 1.
- Page 19 Note: If there is evidence of damage due to tampering or mishandling, the cell warranty will be null and void. 6.4.6 CLEANING THE MEASUREMENT CELL HOUSING If you have a reason to clean the cell housing, this may be done very carefully with a lint-free clean cloth.
-
Page 20: Specifications
7.0 SPECIFICATIONS Measurement Range: 0-10; 0-100; 0-1000; 0-10000 ppm O 0-1; 0-25 % O Calibration Accuracy: With calibration gas (example: 80 ppm O in N +/- 2% FS at constant temperature +/- 5% FS over full temperature range (at 0 -10ppm +/- 1ppm) Resolution: 0.1 ppm Response time:... -
Page 21: Appendix
8.0 APPENDIX 8.1 Warranty Statement 8.2 Oxygen Cell Housing Drawing 8.3 Intrinsically Safe Barrier for Panel Mount (Optional) -
Page 22: Warranty
(ii) the items have not been misused or abused in any manner or repairs attempted thereon; (iii) written notice of the failure within the warranty period is forwarded to Edgetech Instruments Inc. and the directions received for properly identifying items returned under warranty are followed;... -
Page 23: Oxygen Cell Housing Drawing
8.2 OXYGEN CELL HOUSING DRAWING... -
Page 24: Intrinsically Safe Barrier (Optional)
8.3 INTRINSICALLY SAFE BARRIER FOR PANEL MOUNT (OPTIONAL) - Page 25 NOTES...
Need help?
Do you have a question about the OxyTrans and is the answer not in the manual?
Questions and answers