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Instructions 95-8522

Volumetric IR Process Gas Monitor
PIRVOL Series

4.1 7/07

95-8522

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Содержание DET-TRONICS 95-8522

Страница 1: ...Instructions 95 8522 Volumetric IR Process Gas Monitor PIRVOL Series 4 1 7 07 95 8522 ...

Страница 2: ...ay Device 5 Operating Modes 5 Installation 6 Device Mounting Orientation 6 Junction Boxes 6 General Wiring Requirements 6 Wiring Procedure 7 Detector Separation Optional 8 Startup Procedure 9 troubleshooting 9 Maintenance 9 Disassembly and Cleaning Procedure 10 Calibration 11 Device Repair and Return 12 Ordering Information 13 ...

Страница 3: ...e CSA certified for use in Class I Division 1 Groups B C and D and Class I Division 2 Groups A B C and D areas They are fitted with a sealed sampling cup with compression type 0 25 inch o d tubing fittings for easy integration into a vapor sample extraction system FEATURES Routine calibration not required Continuous self test automatically indicates a fault or fouled optics condition Performs well...

Страница 4: ...hane calibrated PIRVOL LT 95 8522 Figure 1 4 to 20 ma Current Loop Resistance Table 1 Current Loop Output Levels and Corresponding Status Indications Current Level Status 23 0 ma 100 by volume 20 0 ma 90 by volume 4 0 ma Zero gas level 0 by volume 2 2 ma Zero calibration in progress 2 0 ma Span calibration in progress 1 8 ma Calibration complete remove gas 1 6 ma Calibration fault 1 0 ma Fouled op...

Страница 5: ...h 5 watt walkie talkie keyed at 1 meter ENCLOSURE MATERIALS Copper free aluminum clear anodized enclosure Stainless Steel 316 electropolished enclosure SAMPLE DRAW CUP Material Aluminum Fittings Brass Tubing Size 1 4 inch O D MOUNTING Det Tronics junction box available in a tall cover with window or a short cover version is recommended for optimum ease of installation PIRVOL can be threaded into a...

Страница 6: ...s designated reference and the other active with different optical filters in front of the two sensors to make them selective to different infrared wavelengths The reference wavelength is unaffected by combustible gases while the active wavelength is absorbed by combustible gases The ratio of the active to the reference wavelength is computed within the PIRVOL to determine the concentration of gas...

Страница 7: ...PIRVOL it enters a Warmup mode for approximately one minute in which it performs diagnostic checks and allows the sensors to stabilize before beginning normal operation The current output during this period is 0 milliamperes At the end of the warmup period with no faults present the PIRVOL automatically enters the Normal operating mode If a fault is present after the warmup the current output will...

Страница 8: ...th the PIRVOL Tall Cover Model junction box cover includes a window See Figure 6 Short Cover Model junction box uses solid cover This junction box can also be used for detector separation See Figure 7 General Wiring Requirements NOTE The wiring procedures in this manual are intended to ensure proper functioning of the device under normal conditions However because of the many variations in wiring ...

Страница 9: ... 4 to 20 ma signal output Yellow lead Calibration input Green lead Chassis ground If the calibration wire yellow lead is not being used do not connect this wire to ground Trim excess length and insulate wire so no shorting can occur 95 8522 Figure 6 Tall PIRVOL Junction Box with Window Figure 7 Short PIRVOL Junction Box Figure 9 Typical PIRVOL Wiring with Det Tronics Junction Box DET TRONICS JUNCT...

Страница 10: ... the transmitter and then to the PIRVOL to ensure that the power requirements are met Mounting and Connecting Procedure for Detector Separation The PIRVOL junction box can be mounted to a wall or post or it can be suspended by the conduit if this does not result in excessive vibration The junction box should be electrically connected to earth ground 1 Lubricate the sensor threads with low vapor pr...

Страница 11: ...ng threads on the PIRVOL and associated junction box A suitable grease is listed under Spare Parts in the Ordering Information section of this manual It is recommended to keep spare IR modules See Spare Parts section for field replacement in the event of a malfunction 95 8522 Current Level Status Corrective Action 2 4 to 3 9 ma Negative Zero Indication NOTE This fault can be caused by the presence...

Страница 12: ...up from the front of the PIRVOL See Figure 12 2 Perform a visual inspection of the sample draw cup and associated plumbing and clean as required Also inspect the two O rings inside the sample draw cup and clean lubricate or replace as required 3 Loosen the two captive screws on top of the mirror assembly Figure 12 and remove the mirror assembly and hydrophobic screen from the electronics assembly ...

Страница 13: ...rocured Calibration Procedure To perform a zero calibration of the PIRVOL follow the sequence described in Table 3 NOTE The calibration sequence is initiated by momentarily connecting the calibration lead to the negative lead common of the power supply using either the Cal Magnet or an external switch If the Det Tronics junction box with magnetic Cal Switch is being used this is accomplished by ho...

Страница 14: ... packing material in addition to an anti static bag or aluminum backed cardboard as protection from electrostatic discharge Return all equipment transportation prepaid to the factory in Minneapolis Description Current LED Operator Action Normal operation no gas present 4 0 ma Off If the possibility of background gases exists purge the sensor with clean air to ensure accurate calibration Initiate c...

Страница 15: ...7128 001 Sample Draw Cup with O Rings and Fittings 007128 002 O Ring Kit UL 006297 003 Hydrophobic Screen 006680 001 Silicone Grease Assistance For assistance in ordering a system to meet the needs of a specific application contact Detector Electronics Corporation 6901 West 110th Street Minneapolis Minnesota 55438 USA Operator 952 941 5665 or 800 765 FIRE Customer Service 952 946 6491 Fax 952 829 ...

Страница 16: ... IR Combustible Gas Detector Eagle Quantum Premier Safety System Eagle Logic Solver Safety System Det Tronics the DET TRONICS logo Eagle Quantum Premier and Eclipse are registered trademarks or trademarks of Detector Electronics Corporation in the United States other countries or both Other company product or service names may be trademarks or service marks of others Copyright Detector Electronics...

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