Teledyne 8800A Operating Instructions Manual
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Teledyne 8800A Operating Instructions Manual

Trace moisture analyzer
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OPERATING INSTRUCTIONS FOR
Model 8800A & B
Trace Moisture Analyzer
DANGER
HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING
SYSTEM.
PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM.
HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST
P/N M8800A&B
FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED.
12/19/01
ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE
ECO # 01-0382
CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/
MANAGER.
i

Teledyne Analytical Instruments

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  • Page 1: Teledyne Analytical Instruments

    OPERATING INSTRUCTIONS FOR Model 8800A & B Trace Moisture Analyzer DANGER HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM. PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM. HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST P/N M8800A&B...
  • Page 2 Your Representative is: Except as may be provided by contract, this document and all specifica- tions and drawings contained are the property of Teledyne Analytical Instruments, are issued in strict confidence, and shall not be reproduced or copied or transmitted, in any form or by any means, or used as the basis for the manufacture or sale of apparatus, programs, or services without permission.
  • Page 3 8800 Series Trace Moisture Analyzer Instruction Manual The manufacturer reserves the right to change or modify the product specification and / or appearance at any time without notice. Therefore, the information in this document is subject to change without notice and does not represent a commitment on the part of the manufacturer.
  • Page 4 This manual is intended for those already familiar with the installation, use and maintenance of analytical or process instrumentation. Those acquainted with other Teledyne dewpoint measurement products such as the 8800P portable trace moisture analyzer or the 8800T, will benefit from the com- monality of the user interface.
  • Page 5 8800 Series Trace Moisture Analyzer Instruction Manual Warranty This instrument is warranted to be free from defects in workmanship and materials. Liability under this warranty is limited to servicing, calibrating, and replacing any defective parts of the instrument returned to the factory for that purpose.

  • Page 6: Table Of Contents

    3.1.1 Electromagnetic Compatibility Considerations ..............9 3.2 Instrument Technical Specifications..................10 3.3 Installation .........................11 3.3.1 Instrument Mechanical Installation ................11 3.3.1.1 8800A (DIN43700) Enclosure Installation..............11 3.3.1.2 8800B (IP65) Enclosure Installation................11 3.3.2 Electrical Connections ....................12 3.3.2.1 Connecting Power......................12 3.3.2.1.1 AC Mains Electrical Power Connection ..............13 3.3.2.1.2 Low Voltage DC Powered Option - Electrical Power Connection......13...
  • Page 7 8800 Series Trace Moisture Analyzer Instruction Manual Appendix D: Optional Sensor Fittings..................41 Appendix E: 8800 Series Trace Moisture Analyzer Circuit Board Dimensions .....42 Appendix F: Sensor/SpanCheck™ Theory of Operation ............45 Appendix G: Dewpoint Response time Analysis ..............46 Appendix H: Sample Gas Filter Considerations..............48 Appendx I: 8800 Series Trace Moisture Analyzer Grounding Considerations .......49 Appendix J: Analog Output vs.

  • Page 8: Overview Of The 8800 Series Trace Moisture Analyzer

    Section 1: Introduction 1.0 Overview of the 8800 Series Trace Moisture Analyzer The 8800 Series Trace Moisture Analyzer is a microprocessor based hygrometer, for measuring moisture content in gases in the range from -100°C to +20°C dewpoint depending on the sensor ordered.
  • Page 9 8800 Series Trace Moisture Analyzer Instruction Manual...

  • Page 10: Sensor And Sampling Techniques

    Section 2: Sensor and Sampling Techniques 2. Sensor and Sampling Techniques 2.1 Precautions using the sensor The HTF™ Al sensor is designed and field proven to be highly reliable, rugged and mainte- nance free. However the user should consider the following precautions: •...

  • Page 11: Sensor Technical Specifications

    8800 Series Trace Moisture Analyzer Instruction Manual 2.2 Sensor Technical Specifications Type: ........Hyper Thin Film HTF™ high capacitance Al Dewpoint range:....XTR-100: -148°F to +68°F (-100°C to +20°C) XTR-65: -85°F to +68°F (-65°C to +20°C). Capacitance:.......15nF to 200nF. Accuracy: ......±5.5°F (±3°C) refer to appendix M for accuracy expressed in other units of measure. Repeatability: .....±0.9°F (±0.5°C).

  • Page 12: In-Situ Installation

    Section 2: Sensor and Sampling Techniques 2.3.1 In-situ Installation In-situ installation is recommended only for measurements where the gas pressure is expected to vary little, the gas is expected to be free of contaminants, the gas temperature is within the operat- ing specifications of the sensor, and there is no chance of liquids coalescing.

  • Page 13: Extractive Installation

    8800 Series Trace Moisture Analyzer Instruction Manual 2.3.2 Extractive Installation For extractive installations we recommend our sample system ESS, which may be equipped with a variety of features, such as: isolation valve, coalescing or particulate filter, pressure regulator, calibration sample injection or extraction port, pressure gauge, flow meter, weatherproof enclo- sure.

  • Page 14: Mechanical Installation

    Section 2: Sensor and Sampling Techniques inside these materials. • Try to run pipes to the sensor upwards, so that contaminants tend to fall back into the main line. • Keep the length of the sample line to the sensor as short as possible. •...

  • Page 15: Troubleshooting Unexpected Readings

    8800 Series Trace Moisture Analyzer Instruction Manual 2.5 Troubleshooting unexpected readings If erroneous readings are suspected on a newly acquired instrument, compare the serial number engraved on the sensor sintered filter, to the label on the instrument. The two should be the same; if they are not, the instrument may not be calibrated with the installed sensor.

  • Page 16: Instrument

    Section 3: Instrument 3. Instrument 3.1 Precautions using the 8800 Series Trace Moisture Analyzer The 8800 Series Trace Moisture Analyzer uses state-of-the-art microelectronics to provide a com- pact full functioning instrument. The user should consider the following precautions when using any sensitive electronic device.

  • Page 17: Instrument Technical Specifications

    Dimensions & Weight:..8800B: 4.73” x 6.3” x 3.55”, 2.1 lbs (fully optioned) w/cables. 8800A: 5.67” x 2.84” x 2.95” DIN 43700 standard, 1.3 lbs (fully optioned) w/cables. refer to appendix E for detailed dimensions Environmental Range: ..Operating temperature of electronics: 14°F to 122°F (-10°C to 50°C) Storage temperature of electronics: -40°F to 176°F (-40°C to 80°C)

  • Page 18: Installation

    (to be installed by the user) to seal the enclosure box to the user’s mounting panel. To achieve a good environmental seal the 8800A Trace Moisture Analyzer must be mounted onto a rigid flat panel with a cutout according to the specified dimensions, using the provided panel gas- ket and all four provided mounting brackets.

  • Page 19: Electrical Connections

    8800 Series Trace Moisture Analyzer Instruction Manual 3.3.2 Electrical Connections All connections are made via a 21 contact, pluggable screw terminal block referred to as P1. Not Connected 14 Not Connected 18 Not Connected Cable access to the 8800B enclosure is through three ports (refer to appendix E), which maintain the NEMA integrity: •...

  • Page 20: Ac Mains Electrical Power Connection

    Section 3: Instrument to operate from 15 to 30 VDC 0.5A, with an internal 0.5A fast acting fuse. Please follow the appropriate installation procedures in the paragraphs below according to the electrical power option on your instrument. Do not connect to AC power without a proper ground connection. For Intrinsically Safe installations, first make sure that the equipment is qualified for the particu- lar installation, it should have a label specifying the certifications and the approving agency.

  • Page 21: Interfacing To The Analog Output

    8800 Series Trace Moisture Analyzer Instruction Manual or 30VDC, instruments for use in division 2 Hazardous Areas have hermetically sealed relays rated at 3A 125VAC. Use wiring appropriate for the voltage and current that will be switched by the relays. Also see section 1.3 for EMI considerations. Keep in mind that the relay polarity is programmable thus wiring should be designed to provide a fail safe operation in case of power failure.

  • Page 22: Interfacing To The Rs-232 Option

    Section 3: Instrument 3.3.2.5 Interfacing to the RS-232 option The optional RS-232C interface is provided on the P1 connector. The configuration is 9600 baud, Even Parity, 8 Bits, 1 Stop, all received characters are echoed. The ground of the RS-232C inter- face is connected to the frame (AC power) ground however it is isolated from the sensor ground, see section 3.1.1.

  • Page 23: Display Conventions

    8800 Series Trace Moisture Analyzer Instruction Manual 3.4.2 Display Conventions 1. To display characters with the 7 segment numeric display, the following pseudo-alphanumer- ics are used: Numbers: 0 12 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Letters: ABCDEF GH IJ LNOP QRS TUXYZ A B C D E F G H I J L N O P Q R S T U X Y Z...

  • Page 24: Operating State

    Section 3: Instrument switches described above. • With a front face plate which has labeled holes placed immediately above the circuit board switches, thus the operator may push the switches without removing the face plate, by making use of a probe such as a paper clip. •...
  • Page 25 8800 Series Trace Moisture Analyzer Instruction Manual parts per million by volume computed at the sensor pressure (more about pressure later). The LBS and G/M are density measurements, pounds of water per million standard cubic feet and grams of water per standard cubic meters, respectively, both in Natural Gas, they are computed accord- ing to data derived by IGT Research Bulletin 8, taking into account sensor pressure.

  • Page 26: Alarms

    Section 3: Instrument 3.4.4.2 Alarms There are two independent optional alarms, they are named HI and LO alarms. Each alarm can activate a single pole double throw relay rated at 10A 250VAC or 30VDC per contact. Instru- ments for use in Division 2 Hazardous Areas have hermetically sealed relays rated at 3A 125VAC.

  • Page 27: Start Calibration

    8800 Series Trace Moisture Analyzer Instruction Manual 5. Push the MODE button. The display will show: the ‘DEWPOINT’ indicator means that we are changing the alarm trigger dewpoint 6. Push the UP or DOWN buttons until the display shows: 7. Push the MODE button. The display will show: indicates that we are changing the hysteresis of the alarm.
  • Page 28 Section 3: Instrument Instrument calibration is recommended in approximately 12 month intervals, and the XTR65W sensor should be re-calibrated after prolonged exposure to liquid water. Simply follow steps 1 - 7 of the procedure below, removing the sensor from the sample gas stream. To avoid injury, make sure the gas stream is depressurized before removing the sensor.

  • Page 29: Single Point Self Calibration, Manual Or Scheduled

    8800 Series Trace Moisture Analyzer Instruction Manual Under certain conditions, an over (super) saturated sensor may need to be completely dried out before a calibration is performed. Symptoms of these conditions are a sensor that will not go through the SpanCheck™ function to the END display, or a sensor that will not dry down after cal- ibration.
  • Page 30 Section 3: Instrument • Make sure the instrument is unlocked. • Press the MODE button a few times until the display shows CAL. • Press the DOWN button to select the Self Calibration mode. The display will show SLF/CAL • Press the DOWN button to confirm entry into the Self Calibration mode.
  • Page 31 8800 Series Trace Moisture Analyzer Instruction Manual the calibrations are scheduled at 720 hours interval. Use the UP and DOWN buttons to change the interval time to whatever is determined to be most effective for your application, consult with your representative if you are in doubt. An interval of 0 Hrs (appears as a blank on the display), disables any further scheduled unattended calibrations, however the instrument will continue to make use of calibration values acquired previously or manually in the future.

  • Page 32: Viewing Serial Number Mode

    Section 3: Instrument sequence of computations is as follows: • The capacitance is converted to percent of full scale (-100°C to +20°C dp), using the low dB, low dew, and saturated dB when performing SpanCheck values. • Cal Adj is applied to correct the mid point of the curve. •...
  • Page 33 8800 Series Trace Moisture Analyzer Instruction Manual 2. Selecting the sensor type: In this mode the user can select the software matching the type of sensor installed in the instrument: XT1 : XTR-100 (-100°C to +20°C); XT6 : XTR-65 (-65°C to +20°C); DB : show impedance of any sensor, disable Open and Short error massages.
  • Page 34 Section 3: Instrument b. Use the UP or DOWN buttons to modify the cal-adjust value as necessary. c. Press the MODE button to go to the next mode, this will save the new cal-adjust value, and it will be retained even if power is turned off. 6.

  • Page 35: Resetable Audio-Visual Alarm Option (Nfpa Compliant)

    8800 Series Trace Moisture Analyzer Instruction Manual four times will display “1234”. Pressing and holding the “MODE” button, will display “ LOC”, indicating that the instrument is now unlocked. It may be locked without the password, same as any other instrument. Note: To avoid unauthorized changes, it is imperative that instrument is returned into the locked mode.

  • Page 36: Troubleshooting The Instrument

    Section 3: Instrument dition ceases to exist, the audio indicator is automatically re-enabled, ready to be activated on next alarm condition. • A momentary TEST button on the front panel allows testing both the visual and audible indi- cators. 3.6 Troubleshooting the Instrument This instrument performs diagnostic tests on power up as well as once every two minutes.
  • Page 37 8800 Series Trace Moisture Analyzer Instruction Manual DISPLAY EXPLANATION REQUIRED ACTION LO ERR PROM check sum failed. HI ERR RAM write/read test failed. cycle power % ERR Unidentified power-up failure. if problem persists, EEPROM Check Sum Failed. return to your representative C.S.F/ A/D converter failure.

  • Page 38: Maintenance

    Section 3: Instrument 3.7 Maintenance The 8800A and 8800B instrument enclosures may be cleaned when necessary using a damp (moist) cloth. The sensor should not be cleaned as it may be damaged. Spare parts may be ordered through your representative.
  • Page 39 8800 Series Trace Moisture Analyzer Instruction Manual...

  • Page 40: Glossary

    Glossary Glossary 0/24 mA ....range of current for the current loop [0mA=minimum reading, 24mA=maximum reading] 4/20 mA ....range of current for the current loop [4mA=minimum reading, 20mA=maximum reading] - preferred because less than 4mA can indicate a fault or open circuit, also there is at least 4mA available to power equipment...
  • Page 41 Manual used for the circuit [see 4/20] dB ..... see - decibel DB25 ....a style and size of connector - in this case with 25 pins DB9.
  • Page 42 Glossary impedance ....the ratio of voltage to current at a specified frequency measured in Ohms, a resistor of the same value would act the same as the mea- sured circuit in-situ .
  • Page 43 Manual RG6....A type of coaxial cable - the letters/numbers refer to the electrical characteristic of the cable [resistance/capacitance per foot of length] RS-232C .

  • Page 44: Appendix A: Flow Diagram Of Operating State User Interface

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix A: Flow Diagram of Operating State User Interface Power ON initialization 30 seconds anywhere (other than appears when changing and sign on message "Calibration") without key press settings of locked unit Toggle Pressure Correction 1/2 sec HI/LO...
  • Page 45 8800 Series Trace Moisture Analyzer Instruction Manual Appendices Flow Diagram Operating State User Interface (continued) Manual & Scheduled Self Calibration Flow diagram items not related to Self Calibration are shaded in gray. Power ON initialization 30 seconds anywhere (other than appears when changing and sign on message "Calibration") without key press...

  • Page 46: Appendix B: Flow Diagram Of Set-Up State User Interface

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix B: Flow Diagram of Set-Up State User Interface go to Power-Up with Power ON initialization appears when changing 4 min anywhere without Operating MODE and sign on message settings of locked unit key press State key depressed...

  • Page 47: Appendix C: Sensor Mechanical

    Removable Sensor encapsulated in 100 sintered stainless steel, unscrew to remove. 5/16"-24 cable with molded-on tension washer male BNC connector Viton A O-ring 3/4"-16 female BNC connector 14mm x 1.25mm 3" min 2.230" flats for 1 " wrench...

  • Page 48: Appendix D: Optional Sensor Fittings

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix D: Optional Sensor Fittings...

  • Page 49: Appendix E: 8800 Series Trace Moisture Analyzer Circuit Board Dimensions

    100-250VAC RFI daughter 50/60HZ board. 10VA 0.51" RFI daughter board 0.197" (5mm) typ. 1.38" Pluggable Screw 0.700" Mounting Holes Terminal Connector d=0.150" (6 places) 0.350" outline. 0.158" 3.900" Appendix E (continued): 8800A Series Trace Moisture Analyzer Enclosure Mounting Dimen-...
  • Page 50 8800 Series Trace Moisture Analyzer Instruction Manual Appendices sions...
  • Page 51 8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix E (continued): 8800B Series Trace Moisture Analyzer Enclosure Mounting Dimen- sions...

  • Page 52: Appendix F: Sensor/Spancheck™ Theory Of Operation

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix F: Sensor/SpanCheck™ Theory of Operation The Sensor is constructed as a capacitor whose dielectric consists of porous Aluminum Oxide as well as the gas that has entered in the pores of the Aluminum Oxide. The plates (electrodes) of this capacitor are an aluminum substrate and a porous gold layer deposited on top of the Alumi- num Oxide, the porous gold electrode allows transfer of gases into or out of the Aluminum Oxide pores.

  • Page 53: Appendix G: Dewpoint Response Time Analysis

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix G: Dewpoint Response time Analysis Manufacturers of dewpoint sensors will make unbelievable claims of speed. But without support- ing data revealing the conditions under which the measurements were made, such as flow rate, temperature, the dewpoint at which the test was performed, and most importantly the units of measure.
  • Page 54 8800 Series Trace Moisture Analyzer Instruction Manual Appendices Of course analyzing on a wet-up step will produce much faster results, because all sensors are fast on wet up, since Al (like most materials) adsorbs faster than it desorbs. Testing with a small step e.g.

  • Page 55: Appendix H: Sample Gas Filter Considerations

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix H: Sample Gas Filter Considerations Sample treatment with pre-filtering may be a necessity in many instances. However the filter housing and element may affect the dewpoint reading and/or the response time of the system. Below is a graph comparing measurements from the same calibrated sensor with and without a filter utilizing a polycarbonate bowl.

  • Page 56: Appendx I: 8800 Series Trace Moisture Analyzer Grounding Considerations

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendx I: 8800 Series Trace Moisture Analyzer Grounding Considerations Not Connected 14 Not Connected 18 Not Connected 1. The sensor ground is isolated from the signal and frame grounds, however it is shunted to frame ground with a 33V Transient Voltage Suppressor,1M Ohm resistor and 0.1uF capacitor to prevent electrostatic buildup and noise pickup.

  • Page 57: Appendix J: Analog Output Vs. Dewpoint

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix J: Analog Output vs. Dewpoint The current output of the 8800 Series Trace Moisture Analyzer, varies with the measured dew- point. To use the current to calculate the value of the dewpoint measurement, one must know the settings of the low and high ends of the analog output range, then: ×...
  • Page 58 8800 Series Trace Moisture Analyzer Instruction Manual Appendices Relationship of 4-20mA output and instrument reading in ppmV or LBS...

  • Page 59: Appendix K: Rs-232C Interface Protocol

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix K: RS-232C Interface Protocol The instrument uses a simple protocol to communicate to a host computer through its RS-232C interface, see section 3.3.2.5 for electrical connections. The interface is configured as 9600 baud, Even Parity, 8 Bits, 1 Stop;...
  • Page 60 8800 Series Trace Moisture Analyzer Instruction Manual Appendices 255 seconds. This feature allows the user to log the measurement on a dumb terminal or a printer. The mode argument is optional and may be specified only if an interval was specified. It may be “N”...
  • Page 61 8800 Series Trace Moisture Analyzer Instruction Manual Appendices The printer should have at least 80 character columns, and it is best to use continuous form paper. “?” command Requests a single report of the measurement in the currently selected format. send:? The unit will respond in the format selected with the Data command, for example: receive:...

  • Page 62: Appendix L: Procedure For Exchanging 8800 Series Sensors

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix L: Procedure for Exchanging 8800 Series Sensors To exchange sensors one must know the measured low attenuation of the sensor at some low dew- point as well as the calibration adjustment value. These numbers can be found on the shipping container serial number label.

  • Page 63: Appendix M: Uncertainty In Lbs & Ppmv Calculations

    8800 Series Trace Moisture Analyzer Instruction Manual Appendices Appendix M: Uncertainty in LBS & ppmV calculations...

  • Page 64: Appendix N: Extractive Sampling System Internal Assembly

    This page is left Blank intentionally...
  • Page 66 This page is left Blank intentionally...

  • Page 68: Index

    Index Symbols °C ............17 cable °F ............17 access ..........12 compensation ........28 grips ..........12 length ..........13 AC power voltage ........10 sensor ..........4 accuracy cabling °C,°F specification ......4 alarm relay contacts ......13 calculated lbs or ppmV ....56 analog output ........14 adjusting low sensor attenuation and power ..........12 dewpoint ......26 requirements ........10...
  • Page 69 Index copper tubing .........6 copyright ..........i G/M3 ........... 17 corrosive gases .........3, 20 gas pressure ......... 18 CSA ............13 gases cUL ............4 corrosive ..........3 current loop incompatible ........3 computations ........50 gasket ..........7, 11 linearity ..........50 glove boxes ........... 5 load ...........14 glycol ...........
  • Page 70 Index NPL ............1 sensor cable compensation ......28 connection ........13 container ..........3 oil ............3 dimensions ........40 operating state ........17 exchange procedure ......55 operating state flow diagram ....37 pressure ..........18 optionally ordered features/capabilities .1 signal cable .........4 outdoor installation ........9 theory of operation ......45 outputs ..........10 types ..........26 overview ..........1...
  • Page 71 Index warning labels ........iii warranty ..........iv water ............3 weather proofing ........9 weight ...........10 wiring .............9 alarm relay contacts ......13 analog output ........14 power ..........12 requirements ........10 RS-232C ...........15 sensor ..........13...
  • Page 72 Teledyne Analytical Instruments A Business Unit of Teledyne Instruments SENSORS • ANALYZERS • SYSTEMS SCIENTIFIC SOLUTIONS 16830 CHESTNUT STREET, CITY OF INDUSTRY, CA 91749-1580 U.S.A. • (626) 961-9221 • (626) 934-1500 • TWX (910) 584-1887 • TDYANYL COID • TAI: FAX # (626) 961-2538...

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