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ATI Technologies B12-70 O & M Manual

2-wire wet acid gas transmitter
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Home Office
Analytical Technology, Inc.
6 Iron Bridge Drive
Collegeville, PA 19426
Phone: 800-959-0299
610-917-0991
Fax:
610-917-0992
Email: sales@analyticaltechnology.com
Web: www.Analyticaltechnology.com
Fax:
610-917-0992
O & M Manual
B12-70
2-Wire Wet Acid
Gas Transmitter
European Office
ATI (UK) Limited
Unit 1 & 2 Gatehead Business Park
Delph New Road, Delph
Saddleworth OL3 5DE
Phone: +44 (0)1457-873-318
Fax:
Email: sales@atiuk.com
Fax:
+ 44 (0)1457-874-468
+ 44 (0)1457-874-468

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Summary of Contents for ATI Technologies B12-70

  • Page 1 O & M Manual B12-70 2-Wire Wet Acid Gas Transmitter Home Office European Office Analytical Technology, Inc. ATI (UK) Limited 6 Iron Bridge Drive Unit 1 & 2 Gatehead Business Park Collegeville, PA 19426 Delph New Road, Delph Phone: 800-959-0299...

  • Page 2: Table Of Contents

    Model B12-70 Wet Acid Gas Transmitter TABLE OF CONTENTS TABLE OF CONTENTS ........................2 INTRODUCTION ..........................4 SPECIFICATIONS..........................6 INSTALLATION ..........................7 MECHANICAL MOUNTING ......................7 ELECTRICAL CONNECTION ......................9 WET ACID GAS SENSOR ASSEMBLY ..................11 OPERATION ..........................13 TRANSMITTER TEST POINTS ....................
  • Page 3 Model B12-70 Wet Acid Gas Transmitter TABLE OF FIGURES Figure 1 - Typical Insertion System Installation (ATI-0156) ..............4 Figure 2 - Typical Flow Through System Installation (ATI-0223) ............5 Figure 3 - Nema 4X Transmitter Enclosure Dimensions (ATI-0198) ............7 Figure 4 - Explosion-Proof Transmitter Enclosure Dimensions (ATI-0226) .........

  • Page 4: Introduction

    Model B12-70 Wet Acid Gas Transmitter INTRODUCTION The Series B12-70 is a two-wire transmitter system designed for use with a special acid gas sensor (for HF, HCl, or HBr) suitable for use in very wet environments. It provides a low power method of monitoring acid gas in applications where excessive moisture causes rapid blinding of standard acid gas sensors.

  • Page 5: Figure 2 - Typical Flow Through System Installation (Ati-0223)

    Model B12-70 Wet Acid Gas Transmitter Figure 2 shows a typical flow through B12-70 gas monitoring system. The sensor is shown with the low volume flowcell in place. If used in insertion applications, the low volume flowcell must be removed.

  • Page 6: Specifications

    Model B12-70 Wet Acid Gas Transmitter SPECIFICATIONS Type: Wet Acid Gases such as HF, HCl and HBr Range: 0-10 PPM Min., 0-100 PPM Max. Accuracy: ±0.2 PPM at constant temperature Electronic Repeatability: ±1% of span Electronic Linearity: ±0.5% of span...

  • Page 7: Installation

    Model B12-70 Wet Acid Gas Transmitter INSTALLATION Installation of a B12 Transmitter requires mechanically mounting the enclosure and connecting DC power to the system. In addition, the sensor must be installed as shown in either figures 1 or 2 and wired to the proper terminals in the transmitter.

  • Page 8: Figure 4 - Explosion-Proof Transmitter Enclosure Dimensions (Ati-0226)

    Model B12-70 Wet Acid Gas Transmitter Explosion-proof transmitter enclosures should be supported by the conduit system and the installation should include proper conduit seals as required by local electrical code. Figure 4 - Explosion-Proof Transmitter Enclosure Dimensions (ATI-0226) The back of the insertion sensor is a 1¼" MNPT pipe thread. The sensor is normally threaded into a blind flange which is used to mount to the vent.

  • Page 9: Electrical Connection

    Model B12-70 Wet Acid Gas Transmitter ELECTRICAL CONNECTION B12-70 transmitters are supplied with a gland seal for the sensor wire and a ½" conduit hub for output loop connection. The sensor connects to terminal block TB2 on the transmitter circuit board as shown in Figure 6.

  • Page 10: Figure 7 - Electrical Connections (Ati-0182)

    Model B12-70 Wet Acid Gas Transmitter Figure 7 - Electrical Connections (ATI-0182) O & M Manual - 10 - -Release E, 7/15...

  • Page 11: Wet Acid Gas Sensor Assembly

    Model B12-70 Wet Acid Gas Transmitter WET ACID GAS SENSOR ASSEMBLY Wet acid sensors require service prior to operation. Sensors are shipped dry. Prior to start-up, a new membrane must be installed and the sensor must be filled with electrolyte. Figure 8 shows an exploded view of the sensor.
  • Page 12 Model B12-70 Wet Acid Gas Transmitter The sensor is now ready for operation. The membrane should be stretched tightly across the tip of the sensor. When handling the assembled sensor, do not set the sensor on its tip or damage to the membrane will result.

  • Page 13: Operation

    Model B12-70 Wet Acid Gas Transmitter OPERATION After mechanical and electrical installation is complete, the system is ready for operation. Prior to start-up, recheck the loop wiring and sensor connections to be sure everything is correct. Reversing the loop wiring will not damage the transmitter, but other devices in the loop may be adversely affected.

  • Page 14: Digital Display Option

    Model B12-70 Wet Acid Gas Transmitter DIGITAL DISPLAY OPTION Series B12 transmitters supplied with the optional LCD have the display mounted to the enclosure cover with a clear lens protecting the display from dirt and moisture. The display is connected to the cover with a short ribbon cable soldered to the transmitter circuit board.

  • Page 15: Calibration

    Model B12-70 Wet Acid Gas Transmitter CALIBRATION Transmitter calibration requires adjustment of both zero and span. Zero is adjusted when the sensor is exposed to air containing no acid gases. Span is adjusted when a gas stream containing a known concentration of acid gas is passed through the low volume flowcell.

  • Page 16: Sensor Response Test

    Model B12-70 Wet Acid Gas Transmitter SENSOR RESPONSE TEST While zero and span adjustments are required only periodically, gas sensors should be checked regularly for proper response. The response test can be done using powdered calcium hypochlorite (HTH) available from any swimming pool supply.

  • Page 17: Maintenance

    Model B12-70 Wet Acid Gas Transmitter MAINTENANCE The only maintenance required on the B12-70 system is periodic sensor service. The wet acid gas sensor uses a microporous membrane that can lose sensitivity with the accumulation of solids or precipitates in the membrane. As a preventive measure, sensors should be rebuilt with new membrane and electrolyte about every 3-4 months.

  • Page 18: Spare Parts List

    Model B12-70 Wet Acid Gas Transmitter SPARE PARTS LIST PART NO. DESCRIPTION 01-0065 B12-69/70 Wet Oxidant/Acid transmitter PCB (10-100 PPM) 01-0113 B12/69/70 Wet Oxidant/Acid transmitter PCB (1-10 PPM) 81-0002 NEMA 4X enclosure (top and bottom) 03-0039 Explosion-proof Enclosure Assembly 38-0002...
  • Page 19 PRODUCT WARRANTY Analytical Technology, Inc. (Manufacturer) warrants to the Customer that if any part(s) of the Manufacturer's equipment proves to be defective in materials or workmanship within the earlier of 18 months of the date of shipment or 12 months of the date of start-up, such defective parts will be repaired or replaced free of charge.
  • Page 20 WATER QUALITY MONITORS GAS DETECTION PRODUCTS Dissolved Oxygen Ammonia Carbon Monoxide Free Chlorine Hydrogen Combined Chlorine Nitric Oxide Total Chlorine Oxygen Residual Chlorine Dioxide Cl2 Phosgene Bromine Potassium Permanganate Chlorine Dissolved Ozone Chlorine Dioxide pH/ORP Fluorine Conductivity Iodine Hydrogen Peroxide Acid Gases Ethylene Oxide Peracetic Acid...

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