INSTRUCTION MANUAL Detcon Model PI-700 PI-700 VOC Gas Sensors This manual covers all ranges of PID based VOC Sensors DETCON, Inc. 4055 Technology Forest Blvd., The Woodlands, Texas 77381 Ph.281.367.4100 / Fax 281.298.2868 www.detcon.com April 15, 2014 • Document #3228 • Revision 2.
Model PI-700 Model PI-700 ii
Model PI-700 Table of Contents 1. Introduction ..................................................................................................................................................1 1.1 Description.......................................................................................................................................... 1 1.2 Sensor Electronics Design .................................................................................................................. 1 1.
Model PI-700 Table of Figures Figure 1 Typical Sensor Cell................................................................................................................................ 1 Figure 2 ITM Circuit Functional Block Diagram................................................................................................. 2 Figure 3 Sensor Assembly Front View ................................................................................................................
Model PI-700 1. Introduction 1.1 Description Detcon Model PI-700 VOC gas sensors are non-intrusive “Smart” sensors designed to detect and monitor a wide range of VOC and Toxic gasses in air. Ranges of detection for target gasses are from 0-1ppm up to 0-5,000ppm. The sensor features an LED display of current reading, fault and calibration status. The Sensor is equipped with standard analog 4-20mA and Modbus™ RS-485 outputs.
Model PI-700 programming tool, thus allowing non-intrusive operator interface with the ITM. Calibration can be accomplished without declassifying the area. Electrical classifications are Class I, Division 1, Groups B C D and are ATEX Approved for Class I, Zone 1, Group IIC area classifications. Figure 2 ITM Circuit Functional Block Diagram LED Display detcon inc. Program Switch #1 Splashguard Adapter Locking Set-Screw MODEL PI-700 Program Switch #2 VOC Figure 3 Sensor Assembly Front View 1.
Model PI-700 Splashguard Adapter detcon inc. MODEL PI-700 detcon inc. MODEL VOC O-Rings Housing Bottom Locking Set-Screw PI-700 Splash Guard Lens and LCD Display Interconnect Wiring Plug-In replaceable Sensor Cell Magnetic Programming Switches Intelligent ransmitter Module (ITM) Microprocessor controlled circuit encapsulated in an explosion proof housing Figure 4 Sensor Assembly Breakaway 1.
Model PI-700 2. Installation 2.1 ATEX Operational Guidelines for Safe Use 1. Install sensor only in areas with classifications matching with those described on the approval label. Follow all warnings listed on the label. Figure 6 PI-700 ATEX Approval Label 2. Ensure that the sensor is properly threaded into a suitable explosion-proof rated junction box with a downward pointing female ¾” NPT threaded connection.
Model PI-700 2.2 Sensor Placement Selection of sensor location is critical to the overall safe performance of the product.
Model PI-700 Do not mount in locations where temperatures will exceed the operating temperature limits of the sensor. Where direct sunlight leads to exceeding the high temperature-operating limit, use a sunshade to help reduce temperature. 2.3 Sensor Contaminants and Interference PID VOC and toxic gas sensors will respond to any gas with an ionization potential <10.6eV. This is not a selective measurement technique, and hence can be used to measure a wide range of gases.
Model PI-700 5.5" 4.95" 3.675" 5.25" Spacer Ø0.265" x2 Mounting Holes Mounting Bolt 3/4" NPT (Detcon's Junction-Box shown) 12.55" 5.53" Use Spacers to move the J-Box and Sensor Assembly away from the wall at least 0.25-0.5" to allow access to Sensor detcon inc. MODEL PI-700 7.935" mounting surface) Explosion Proof Enclosure Junction-Box Wall (or other 8-32 Thread Ground Point Sensor Assembly VOC Splash Guard 2" 2.125" Figure 7 Outline and Mounting Dimensions 2.
Model PI-700 NOTE: The Detcon Warranty does not cover water damage resulting from water leaking into the enclosure. Since the electronics are 100% epoxy encapsulated, only the wire terminations can get wet. This could cause abnormal operation and possibly cause corrosion to the terminal connections. However, it would not be expected to cause permanent damage to the sensor.
Model PI-700 Table 1 Wire Gauge vs. Distance AWG Wire Dia. Meters Feet 22 20 18 16 14 0.723mm 0.812mm 1.024mm 1.291mm 1.628mm 700 1120 1750 2800 4480 2080 3350 5250 8400 13,440 Over-Current Protection 3A 5A 7A 10A 20A NOTE 1: Wiring table is based on stranded tinned copper wire and is designed to serve as a reference only. NOTE 2: Shielded cable is required for installations where cable trays or conduit runs include high voltage lines or other possible sources of induced interference.
Model PI-700 NOTE: If the 4-20mA output is not being used, a 100-250Ω resistor must be installed between the mA and (-) terminals on the Transient Protection Module to ensure RS-485 communication is not disrupted by a 4-20mA Fault. a) If applicable, terminate the RS-485 serial wiring as shown in Figure 9.
Model PI-700 Detcon Span Gas (See Detcon for Ordering Information). Recommended span gas is 50% of range with Isobutylene in air or N2 balance. Detcon P/N 985-241100-321 In-Line Humidifying Tube 24" a) Attach the calibration adapter to the threaded sensor housing or connect tubing to integral cal port. Apply the test gas at a controlled flow rate of 200 - 500cc/min using the in-line humidifying tube, (200cc/min is the recommended flow).
Model PI-700 3. Operation 3.1 Programming Magnet Operating Instructions The Operator Interface of the Model 700 Series gas sensors is accomplished via two internal magnetic switches located to either side of the LED display (see Figure 11). The two switches, labeled “PGM1” and “PGM2”, allow for complete calibration and configuration, thereby eliminating the need for area declassification or the use of hot permits.
Model PI-700 3.2 Operator Interface The operating interface is menu-driven via the two magnetic program switches located under the target marks of the sensor housing. The two switches are referred to as “PGM1” and “PGM2”. The menu list consists of three major items that include sub-menus as indicated below. (Refer to the complete Software Flow Chart.
Model PI-700 Software Flowchart Normal Operation PGM1 (3) PGM2 (10) PGM1 (3) PGM2 (3) AutoZero AutoSpan View Sensor Status Auto Time-Out PGM1/2 (M) PGM1/2 (3) Set AutoSpan Level Set Range Set Serial ID Auto Time-Out PGM1/2 (M) PGM1/2 (3) AutoTime-out PGM1/2 (M) PGM1/2 (3) Auto Time-Out PGM1/2 (M) PGM1/2 (3) Model Type Version X.
Model PI-700 3.4 Calibration Mode 3.4.1 AutoZero The AutoZero function is used to zero the sensor. Local ambient air can be used to zero calibrate a VOC gas sensor as long as it can be confirmed that it contains no target or interference gasses. If this cannot be confirmed then a zero air or N2 cylinder should be used.
Model PI-700 Material Requirements: Detcon PN 327-000000-000 MicroSafe™ Programming Magnet Detcon PN 613-120000-700 700 Series Splash Guard with integral Cal Port and Calibration Wind Guard (P/N 943-000000-000) - OR Detcon PN 943-000006-132 Threaded Calibration Adapter Target Span Gas (See Detcon for Ordering Information) representing the target gas (with air or N 2 balance) between 10% and 90% of the full-scale range - OR Isobutylene Span Gas.
Model PI-700 magnet over PGM2 for 3 seconds to execute AutoSpan (or allow to timeout in 5 seconds if AutoSpan is not intended). The ITM will then scroll “Apply XX ppm Gas”. NOTE: Upon entering Calibration Mode, the 4-20mA signal drops to 2mA and is held at this level until the program returns to normal operation. Modbus™ Status Register bit 14 is also set to signify when the sensor is in-calibration mode.
Model PI-700 NOTE 4: If the sensor fails the clearing time criteria, a “Clearing Fault” will be declared and a “Fault Detected” message will be displayed alternately with the sensor’s current reading. The 4-20mA output will be taken to 0mA and the ‘Clearing Fault’ fault bit will be set on the Modbus™ output. 3.5 Program Mode Program Mode provides a “View Sensor Status” menu to check operational and configuration parameters.
Model PI-700 Sensor Model Type The menu item appears as: “Model PI-700” Current Software Version The menu item appears as: “Version 1.XX” Gas Type The menu item appears as: “ Gas Type = VOC” Range of Detection. The menu item appears as: “Range XXX” Serial ID address. The menu item appears as: “Serial ID XX” AutoSpan Level. The menu item appears as: “AutoSpan Level XX” Days Since Last AutoSpan. The menu items appears as: “Last Cal XX days” Remaining Sensor Life.
Model PI-700 When the status list sequence is complete, the ITM will revert to the “View Sensor Status” text scroll. The user can either: 1) review list again by executing another 3-4 second hold, 2) move to another menu item by executing a momentary hold over PGM1 or PGM2, or 3) return to Normal Operation via automatic timeout of about 15 seconds (the display will scroll “View Sensor Status” 4 times and then return to Normal Operation). 3.5.
Model PI-700 When the AutoSpan value is between 101 and 1000, the adjustment increment is 50 When the AutoSpan value is between 1001 and 10000, the adjustment increment is 500 The menu item appears as: “Set AutoSpan Level”. From the Set AutoSpan Level text scroll, hold the magnet over PGM1 or PGM2 until the “◄” prompt appears and continue to hold the magnet in place for an additional 3-4 seconds (until the display starts to scroll “Set Level”).
Model PI-700 “Set Range”). The display will then switch to “XXX“(where XXX is the current Range). Swipe the magnet momentarily over PGM2 to increase or PGM1 to decrease the range Level until the desired range is displayed. Hold the magnet over PGM1 or PGM2 for 3 seconds to accept the new value. The display will scroll “Range Saved”, and revert to “Set Range” text scroll. Selectable ranges are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 – Normal ranges for Low Range Sensors.
Model PI-700 The menu item appears as: “Set Zero Offset” From the “Set Zero Offset” text scroll, hold the programming magnet over PGM1 or PGM2 until the “◄” prompt appears and then hold continue to hold the magnet in place for an additional 3-4 seconds (until the display starts to scroll “Set Zero Offset”). The display will then switch to “ X.X“ (where X.X is the current offset). Swipe the magnet momentarily over PGM2 to increase or PGM1 to decrease the number until the desired zero offset is displayed.
Model PI-700 From the “Restore Defaults” text scroll, hold the programming magnet over PGM2 until the “◄” prompt appears and continue to hold 10 seconds. The display will scroll “Restoring Defaults”, followed by “New ECS Connected”, and “Range XX” where XX is the default range of the intelligent plug-in sensor.
Model PI-700 3.6.2 Fault Diagnostic/Failsafe Features Fail-Safe/Fault Supervision Model PI-700 sensors are designed for Fail-Safe operation. If any of the diagnostic faults listed below are active, the ITM Display will scroll the message “Fault Detected” every 1 minute during normal operation. At any time during “Fault Detected” mode, holding the programming magnet over PGM1 or PGM2 for 1 second will display the active fault(s). All active faults are reported sequentially.
Model PI-700 condition has been cleared. If a Sensor Fault occurs, the 4-20mA signal will be set at 0mA until the fault condition is resolved. Processor Fault If the detector has any unrecoverable run-time errors, a “Processor Fault” is declared. A “Processor Fault” will cause a “Fault Detected” message to flash intermittently on the ITM display. The Modbus™ fault register bit for Processor Fault will be set and will not clear until the fault condition has been cleared.
Model PI-700 4. RS-485 Modbus™ Protocol Model DM-700 sensors feature Modbus™ compatible communications protocol and are addressable via the program mode. Other protocols are available. Contact the Detcon factory for specific protocol requirements. Communication is two wire, half duplex 485, 9600 baud, 8 data bits, 1 stop bit, no parity, with the sensor set up as a slave device. A master controller up to 4000 feet away can theoretically poll up to 256 different sensors.
Model PI-700 FC REG Content Description R/W Content Definition Meaning Function dependent on value of 40006 (See Special Register Table 4) Function dependent on value of 40006 (See Special Register Table 4) Function defendant on value of 40006 (See Special Register Table 4) Idle Zero Calibration Started Span Calibration Started Span Set Span Calibration Unsuccessful Set Zero Set Span Signal simulation mode Set FP Bridge Voltage Set TP Heater Power Set IR Gain Two Char of Gas/Units String6 Value 03/ 06
Model PI-700 5. Service and Maintenance Calibration Frequency In most applications, quarterly span calibration intervals will assure reliable detection. However, industrial environments differ. Upon initial installation and commissioning, close frequency tests should be performed, weekly to monthly. Test results should be recorded and reviewed to determine a suitable calibration interval. If, after 180 days, an Auto-Span Calibration is not performed, the ITM will generate an AutoSpan Fault. 5.
Model PI-700 filter may vary depending on the application; however, it is advised to change it out at least on a 18-24 month cycle. In addition, a small moisture control packet (P/N 960-700PID-000) Figure 15 is banded around the plug-in PID sensor. This helps the sensor maintain better zero stability in extremely high humidity conditions. It is only to be used in conjunction with the secondary filter discussed previously. This moisture control packet should be replaced on an 18-24 month cycle.
Model PI-700 All piD Sensor Cells contain six user replaceable components: Filter Cap Spacer Filter Media #1 Filter Media #2 Cell Assembly 10.6eV Lamp Figure 16 Sensor Cell Parts NOTE: Avoid touching lamp’s window as well as any metal portion of the Detector Cell with bare fingers. It is acceptable to hold the lamp by its glass body or by the edges of the window. Fingerprints left on those parts may adversely affect the sensor’s operation. Use of cotton or latex gloves is suggested. Disassembly 1.
Model PI-700 Figure 18 Removal of Filter Media 4. Using the Exacto Blade, remove the spacer and set it aside. Figure 19 Removal of Spacer 5. With fine tipped tweezers, carefully remove the cell assembly by prying under the cell’s edge where the connector pins are located. Figure 20 Removal of Cell Assembly 6. With fine tipped tweezers, grasp the lamp by placing the tips in the housing notch and gently pulling it out. Be careful not to scratch the lamp lens or chip the edges.
Model PI-700 Figure 21 Removal of Lamp Cleaning the Lamp Figure 22 Lamp cleaning Wearing gloves grab the lamp by the cylindrical glass body and clean the window by rubbing it against the Polishing Pad. Use a circular motion and try to keep the window surface flat relative to the pad. Five seconds of rubbing should be enough in most cases. Another indication of cleaning completeness is that about 1/16 th of the pad surface is used during the process.
Model PI-700 Reassembly 1. Install the lamp into the sensor, making sure that the lamp’s metalized pads are aligned with the corresponding excitation springs inside the lamp cavity Figure 24 Lamp installation 2. With the end of the clean tweezers, or a clean blade of a screwdriver, press down firmly, being careful not to scratch the surface of the lamp. Figure 25 Lamp seating 3. Using fine tipped tweezers, install the cell assembly.
Model PI-700 4. Place the spacer around the assembly. Figure 27 Spacer installation 5. Place the filter media over the Cell Assembly centered on the top of the sensor. Make sure the filters are installed in the correct order. Filter Media #2 first, then Filter Media #1 on top, with the shiny side up. Figure 28 Installing Filter Media 6. Align the Cap Key with the notch on the housing. Starting at the side opposite the notch, press down until the Filter Cap snaps on to the housing.
Model PI-700 Visual Inspection The Sensor should be inspected annually. Inspect for signs of corrosion, pitting, and water damage. During visual inspection, the Splash Guard should be inspected to insure that it is not blocked. Examine the plug-in sensor for signs of physical blockage, electrolyte leakage, or severe corrosion. Also, inspect inside the Junction Box for signs of water accumulation or Terminal Block corrosion.
Model PI-700 Locking Setscrew Display Window ITM Bottom View Plug-in Sensor (Bottom View) Figure 31 Sensor Cell and ITM Mating d) Thread the Splash Guard Adapter onto the ITM to a snug fit and tighten the locking setscrew using the 1/16” Allen wrench. Reinstall the splashguard. e) Verify the gas type and range of the new sensor by checking in View Program Status. It is recommended “AutoZero and AutoSpan functions be performed, as per Section 3.
Model PI-700 5.4 Replacement of PI-700 Sensor Assembly a) Remove the power source from the sensor assembly. Disconnect all sensor wire connections at the J-Box. NOTE: It is necessary to remove power to the J-Box while changing the PI-700 sensor in order to maintain area classification. b) Use a wrench and the wrench flats provided at the top section of the ITM and unthread the ITM until it can be removed.
Model PI-700 6. Troubleshooting Guide Refer to the list of Failsafe Diagnostic features listed in Section 3.6.2 for additional reference in troubleshooting activities. Listed below are some typical trouble conditions and their probable cause and resolution path. Locking Setscrew Display Window ITM Bottom View Plug-in Sensor (Bottom View) Figure 32 Sensor Cell and ITM Mating Under-Range Fault Probable Cause: Sensor Baseline drifted lower, Ambient Interference gasses reduced. Repeat AutoZero.
Model PI-700 Verify adequate Sensor Life. Clean or replace the PID lamp. Replace the plug-in VOC sensor. Stability Fault Probable Causes: Failed Sensor, empty or close to empty Cal Gas Cylinder, or problems with cal gas and delivery. Check validity of span gas using pull tube or other means (check MFG date on cal gas cylinder). Use proper cal gas regulators and tubing for highly corrosive gasses.
Model PI-700 Verify field wiring is properly shielded and grounded. Contact Detcon to optimize shielding and grounding. Nuisance Alarms Check condulet for accumulated water and abnormal corrosion on terminal blocks. If nuisance alarms are happening at night suspect condensation in condulet. Add or replace Detcon’s Condensation Prevention Packet P/N 960-202200-000. Investigate the presence of other target gasses that are causing cross-interference signals. Determine if cause is RFI induced.
Model PI-700 7. Customer Support and Service Policy Detcon Headquarters Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas 77381 Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067 Phone: 888.367.4286, or 281.367.4100 Fax: 281.292.2860 • www.detcon.com • service@detcon.com • sales@detcon.com All Technical Service and Repair activities should be handled by the Detcon Service Department via phone, fax, or email at contact information given above.
Model PI-700 8. PI-700 Sensor Warranty Intelligent Plug-in Sensor Warranty Detcon Inc. warrants, under normal intended use, each new intelligent plug-in sensor for a period of twelve months and under the conditions described as follows: The warranty period begins on the date of shipment to the original purchaser. The sensor element is warranted to be free of defects in material and workmanship.
Model PI-700 9. Appendix 9.
Model PI-700 Weight: 2 lbs; 0.907kg (sensor only) 6 lbs; 2.72kg (w/aluminum j-box) 9 lbs; 4.08kg (w/stainless steel j-box) Electrical Specifications Input Voltage: 11-30 VDC Power Consumption: Normal operation = 68mA (<1.7 watt) Maximum = 85mA (2 watts) Inrush current: 1.
Model PI-700 9.
Model PI-700 Compound Name Carbon disulfide Carbon monoxide Carbon tetrachloride Carbonyl sulfide Cellosolve (see 2-Ethoxyethanol) CFC-14 (see Tetrafluoromethane) CFC-113 (see 1,1,2-Trichloro-1,2,2trifluoroethane) Chlorine Chlorine dioxide Chloro-1,3-butadiene, 2Chlorobenzene Chloro-1, 1-difluoroethane, 1-(R-142B) Chlorodifluoromethane Chloroethane Chloroethanol Chloroethyl ether, 2Chloroethyl methyl ether,2Chloroform Chloropicrin Chlorotoluene, oChlorotoluene, pCrotonaldehyde Cumene Cyanogen bromide Cyano
Model PI-700 Compound Name Dichloro-1-propene, 1,3Dichloro-1-propene, 2,3Dichloro-1,1,1-trifluoroethane, 2,2Dichlorvos Dicyclopentadiene Diesel Fuel #1 Diesel Fuel #2 Diethylamine Diethylaminopropylamine, 3Diethylmaleate Diethyl sulfide Diisopropylamine Diketene Dimethylacetamide, N,NDimethylamine Dimethyl carbonate Dimethyl disulfide Dimethylethylamine Dimethylformamide, N,NDimethylhydrazine, 1,1Dimethyl methylphosphonate Dimethyl sulfate Dimethyl sulfide Dimethyl sulfoxide Dioxane, 1,4Dowtherm A see Ther
Model PI-700 Compound Name Synonym/Abbreviation Furfuryl alcohol Gasoline #1 Gasoline #2, 92 octane Glutaraldehyde Halothane HCFC-22 (see Chlorodifluoromethane) HCFC-123 (see 2,2-Dichloro1,1,1-trifluoroethane, R-123) HCFC-141B (see 1,1Dichloro-1-fluorethane) HCFC-142B (see 1-Chloro1,1-difluoroethane) HCFC-134A (see 1,1,1,2Tetrafluoroethane) HCFC-225 (see Dichloropentafluoropropane) Heptane, nHexamethyldisilazane,1,1,1,3 ,3,3Hexane, n Hexanol, 1Hexene, 1Hydrazine Hydrogen Hydrogen cyanide Hydrogen peroxid
Model PI-700 1 Compound Name Synonym/Abbreviation Formula Response Factor Limonene, DKerosene (C10-C16 petro. distillate - see Jet Fuels) MDI (see 4,4'-Methylenebis (phenylisocynate)) Mesitylene Methane Methanol (R)-(+)-Limonene C10H16 0.33 + ~8.2 ne 1,3,5-Trimethylbenzene Natural gas Methyl alcohol, carbinol Methyl cellosolve, Ethylene glycol monomethy ether 2-(2-Methoxyethoxy)ethanol Diethylene glycol monomethyl ether C9H12 CH4 CH4O 0.35 NR NR + + + 8.41 12.51 10.85 ne ne 200 C3H8O2 2.
Model PI-700 Compound Name Synonym/Abbreviation Nitropropane, 2Nonane Octane, nPentane Peracetic acid Peracetic/Acetic acid mix Perchloroethene PGME PGMEA Phenol Phosgene Phosphine in N2 Photocopier Toner Picoline, 3Pinene, aPinene, b Piperylene, isomer mix Propane Propanol, nPropene Propionaldehyde Propyl acetate, nPropylene carbonate Propylene glycol Propylene oxide Propyleneimine Propyl mercaptan, 2Pyridine Pyrrolidine (coats lamp) RR7300 (PGME?PGMEA) Sarin Stoddard Solvent (see Mineral Spirits) Styr
Model PI-700 Compound Name Synonym/Abbreviation Formula Tetrahydrofuran Tetramethyl orthosilicate THF Methyl silicate, TMOS Dowthern,3:1 Diphenyl oxide: Biphenyl Methylbenzene TDI, 4-Methyl-1,3-phenylene2,4- diisocyanate 1,2,4-TCB 1,1,1-TCA, Methyl chloroform 1,1,2-TCA TCE, Trichloroethylene C4H8O C4H12O4Si C12H10O C12H10 C7H8 Therminol VP-1 Toluene Tolylene-2,4-diisocyanate Trichlorobenzene, 1,2,4Trichloroethane, 1,1,1Trichloroethane, 1,1,2Trichloroethene Trichlorotrifluoroethane, 1,1,2- CFC-113 Tri
Model PI-700 9.
Model PI-700 9.4 Model PI-700 Engineering Drawings 1) PI-700 Series Breakaway and Wiring 2) PI-700 Series Dimensional, Mounting, and Wiring - 316 SS condulet 3) PI-700 Series Dimensional, Mounting, and Wiring - Aluminum condulet 9.1 Revision History Revision 0.0 0.1 0.2 1.0 Date 08/01/2006 04/01/2007 11/26/2007 02/29/2008 1.1 1.2 07/14/2008 10/01/2009 1.3 11/16/2009 1.4 12/17/2009 1.5 05/12/2010 1.6 1.7 12/13/2010 04/25/2011 1.8 7/11/2011 1.9 04/16/2012 Changes made Initial Manual release.
NA A JOB NO. SIZE 3207-1 4 DRAWING NO. REV Sensor Wiring to Junction Box Intelligent Transmitter Module (ITM) Transient Protection Module (TPM) P/N 500-003087-100 Customer Supplied Wiring (In) Power from and 4-20mA out to Control Device detcon inc.
Model DM-700 This page left intentionally blank Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas 77381 Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067 Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 • www.detcon.com • sales@detcon.com PI-700 Instruction Manual Rev. 2.
4 REV Explosion Proof Junction Box Wiring to Sensor Assembly If the Sensor is not mechanically grounded to the Junction Box, and external ground strap should be used to insure proper grounding. NOTES: Mount TPM in Explosion Proof Enclosure to ground unit properly. Mount to bottom of enclosure using 6-32 screws. Transient Protection Module (TPM) P/N 500-003087-100 mA N/U A(+) B(-) (+) (-) 3228-2 DRAWING NO. Customer Supplied Wiring 3 4" PLANT: SERIAL NO. PROJECT NO. REQ. NO. P.O. NO.
Model DM-700 This page left intentionally blank Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas 77381 Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067 Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 • www.detcon.com • sales@detcon.com PI-700 Instruction Manual Rev. 2.
NA JOB NO. A SIZE 3207-3 4 DRAWING NO. REV 5.5" 5.2" 3 3.95" NPT Port Plug unused ports Detcon's Aluminum Explosion Proof Junction-Box (Condulet) 4" 5.825" 8-32 Threaded Ground Point Ø0.275" Mounting Hole 6-32 Threaded Ground Point 13.1" Typ detcon inc. 4.88" MODEL PI-700 Sensor Assembly VOC 0.4" Typ Splash Gaurd 2" NOTES: d et c o n , i n c . CLIENT: P.O. NO. REQ. NO. PROJECT NO. SERIAL NO.
Model DM-700 This page left intentionally blank Shipping Address: 4055 Technology Forest Blvd., The Woodlands Texas 77381 Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067 Phone: 888.367.4286, 281.367.4100 • Fax: 281.292.2860 • www.detcon.com • sales@detcon.com PI-700 Instruction Manual Rev. 2.
