Snifter A1+
Contents
1. Table 3 Default operating configuration on factory settings Snifter A1 User Manual 10 SIN SINTROL lt 5x normal dust level LED ON gt 5x normal dust level lt 20x normal dust level gt 20x normal dust level Auto setup in progress Boot check in progress Auto setup failed Boot check failed Device or firmware error Power OFF Device or firmware error LED OFF Figure 5 Description of Snifter A1 cover illumination sequences Snifter A1 User Manual 11 PA INTER 7 AUTO SETUP To be able to detect variations in dust follow and to set the alarm so that it will go off if there is excessive dost flow you must determine the typical dust flow in the application when the process is operating normally The unit has an auto setup function With this you can set the measuring range of the dust monitor Before running the auto setup it is necessary to know that the process is running with normal dust flow When initiated auto setup sets the dust measuring parameters based on the normal dust flow After the auto setup the alarm signals are set as follows e alert when the dust concentration exceeds 5 times the typical dust level e alarm when the dust concentration exceeds 20 times typical dust level 7 1 How to do the auto setup Follow the procedure below to run the auto setup 1 Connect the sensor to the duct connect the power to the device and wa2. Sintrol Snifter Al Manual Version 1 2 2 PA ui a Table of Contents 1 INTRODUCTION ai 3 1 1 Safety u en ak 3 1 2 Product OVERVIEW ee i Ai a o a ei d ei a 3 1 3 How does it Work En made terei c dea am een 3 2 INSTALLATION sa 4 2 1 Selecting the installation location 4 2 2 Installing the sensor si en caise caca ea anala Boa ina o aia e a a a cat 5 3 WIRING petec ten adie tc aa n ia dd DR lat die eat aia 6 A TECHNICAL SPECIFICATIOIN nennen 7 5 DIMENSIONS se cica di sai i il E ca doo tb dei 9 6 OPERATION maniement a ca at ai 10 6 1 The alarm threshold factory setting values ccce eee eee 10 7 AUTO SETUP ana 12 7 1 How to do the auto setup eee nene nenea a aaa 12 B MAINTENANCE siecle ere 13 9 TROUBLESHOOTING nennen 13 9 1 No output signal iii 13 9 2 No response after AUTO SEUUP sic sn cae ca aaa aaa anina a i aia ad a tina a 13 9 3 BOD IENEI aude me ondes 13 Snifter A1 User Manual PA mii ia 1 INTRODUCTION This manual describes how to install and use SINTROL s Snifter A1 dust monitor Sintrol shall not be liable for any loss or damage whatsoever arising from use of any information or details therein or omission or error in this manual or any misuse of the product 1 1 Safety Snifter A1 requires 12 24 VDC power supply Although these voltage levels are considered safe the process gas or dust particulates can be hazardous to health Take appr
3. Table 2 Technical specification Snifter A1 User Manual PA mi a 5 DIMENSIONS N zZ U pa 7 m gt o 63 13 250 Figure 4 Structure and dimensions This instrument conforms to the following standards Product standard Reference standard electrical equipment for Ec 61326 1 2005 First Edition measurement control and laboratory use EMC requirements Snifter Al User Manual PA SINTROL 6 OPERATION The Snifter A1 Dust Monitor measures the dust level in a gas flow by using inductive electrification technology which is based on AC measurement of moving particles which carry a charge There are two alarm signal outputs to indicate two different alarm conditions In addition to this the front cover illumination will blink to inform about the current alarm 6 1 condition The alarm threshold factory setting values Alert gt 5 times normal dust level during automatic setup Alarm gt 20 times normal dust level during automatic setup ALARM FRONT COVER SIGNALS Bern ILLUMINATION OPEBATION S1 LOW Power OFF OFF i 52 LOW failure or auto setup failed S1 LOW Dust level lt Limit1 ON Normal operation S2 HIGH BLINKING S1 HIGH Limit1 lt Dust level lt Limit2 COUNT Alert S2 LOW IS ONE B BLINKING S1 HIGH Dust level gt Limit 2 COUNT Alarm S2 HIGH IS TWO C
4. high vibration levels should be avoided 5 The units must not be installed in direct sunlight or in areas where the ambient temperature is above 40 C The mounting socket in The unit above the middle of the side or horizontal axis 24 L 2 a in the middle of the top gt Trp iil Figure 2 Round cross section duct Figure 3 Square cross section duct NOTE The sensor must not contact the opposite wall or any other obstacle inside the duct The only allowed interaction with sensor is dust particles 2 2 Installing the sensor Once the location of the unit has been selected the Snifter A1 with NPT 1 2 male thread can be installed to process with 1 2 female thread Make sure the installation is in the right position insert the sensor inside the adapter and rotate the Snifter until the connection is tight NOTE Do not over tighten the Snifter A1 with process connection It may cause damage to sensor and electronics Snifter A1 User Manual 5 PA SINIESL 3 WIRING The Snifter Al comes with two meter power and signal cable There are 5 wires two wires for VDC power source two for alarm signals and one for automatic setup signal Connect the VDC power supply to pink and GND to gray wires Blue and red wires are for alarm signals and they give the same voltage levels as power input voltage when the alarm latches to high state Wire colour Sig
5. it for 10 minutes the process to stabilize 2 Then start the auto setup procedure by connecting the automatic setup signal green wire to the V signal wire for a period of 1 second The automatic setup will initiate and the front panel light will start to blink slowly sequence D in Figure 5 Description of Snifter A1 cover illumination sequences 3 Then Release the automatic setup signal by disconnecting the green wire from V Auto setup procedure takes 1000 seconds approx 17 min to complete When the front cover lighting stops blinking the auto setup is finished and the Snifter Al is ready for use Snifter Al User Manual 12 PA SINIESL 8 MAINTENANCE Snifter Al dust monitor needs very little or practically no maintenance We recommend checking the status of the sensor after the first 2 months of operation If no notable build up of contamination can be observed the recommended maintenance interval is 2 years However if the particles in the gas are sticky and tend to build up the cleaning needs to be done more often The need for maintenance depends on the process The maintenance is done by removing the unit from the process and cleaning the sensor rod to prevent signal leakage to ground Opening the enclosure during the maintenance is unnecessary and will terminate the warranty 9 TROUBLESHOOTING 9 1 No output signal e Check the power and signal wiring are connected correctly e Check that there i
6. nal name BLUE Alarm signal 1 RED Alarm signal 2 GRAY V GND PINK V VDC GREEN Auto setup Table 1 Wiring and signals Snifter A1 User Manual PA SOS TECHNICAL SPECIFICATION Product name Snifter A1 Measurement Objects Solid particles in a gas flow Particle Size 0 3 um or larger Measurement Range From 0 1 mg m Measurement Principle Inductive Electrification Protection Category IP65 Sensor Length total measuring 250 mm 185 mm Power Supply 12 24 VDC Power Consumption 3W Cable Connection 2 meter cable 5 wires Process Connection NPT 1 2 male thread Output Signals e Two output signals 100 280 mA e Back light illuminated front cover Alarm settings Set automatically by auto setup based on average measured dust flow 5 times and 20 times of reference dust flow Process Conditions Temperature Max 250 C Pressure Max 200 kPa Gas Velocity Min 3 m s Humidity Max 95 RH non condensing Ambient Conditions Temperature 20 40 C Humidity Max 95 RH non condensing Snifter Al User Manual PA INTER Materials and Weight Probe wetted part Stainless steel AISI 316L Process Connection wetted part Stainless steel AISI 316L Enclosure Aluminum Probe Insulation wetted part PEEK Weight 0 6 kg
7. on The best location for installation is in a section of duct where the particulate has an even distribution and the flow is as laminar as possible This is to ensure that the sensor rod comes into contact with a representative flow of particles The ideal position would be in a section of duct that has no bends valves dampers or other obstructions for a distance equal to at least three duct diameters downstream or upstream preferable 5 x duct diameter Description of installation is presented in Figure 1 Recommended distance to duct bends D Duct diameter xD D Figure 1 Recommended distance to duct bends D Duct diameter In some applications a compromise must be made and the sensor will have to be fitted in a position that satisfies the majority of above requirements The Snifter A1 must be attached to metal ductwork so that the device will be electrically shielded from interference and has good ground reference 1 The unit shall be installed in a position where the gas flow passes the sensor rod in a 90 angle 2 In round cross section ducts the unit can be installed in any position above the horizontal axis between 9 o clock and 3 o clock See Figure 2 Snifter A1 User Manual PA me a 3 For square cross section ducts the unit must be positioned in the middle of the top or in the middle of one of the sides See Figure 3 4 Although the sensor is not affected by vibration very
8. opriate precautions when installing the monitor Unless the process conditions are known to be entirely safe suitable precautions must be taken before any entry is made into the duct for installation or maintenance purposes e The unit may be installed in ducting containing particulate hazardous to health e The particulate may be inflammable explosive or toxic e The gas can be hot and pressurised 1 2 Product overview The Snifter A1 Dust monitor is a microprocessor based self adjusting device equipped with two fixed output signal and backlit illuminated front cover Device is designed for filter bag leak detection It is a compact unit with the sensor and control electronics built into one IP65 enclosure which has been specifically designed for easy installation and operation 1 3 How does it work The Snifter Al uses Sintrol s proven and reliable inductive electrification technology where the interaction of particles with the sensor rod causes a small electrical charge to pass between the particulate and sensor It is this small electric charge that provides the signal monitored by the electronics the signal generated is proportional to the dust level even if particles accumulate on the sensor Experience has shown that this method of monitoring dust level in gasses offers accurate results with minimum maintenance Snifter A1 User Manual PA SINIESL 2 INSTALLATION 2 1 Selecting the installation locati
9. s power on cover glows e Dothe auto setup If the monitor is not giving any output signal after these checks contact your local distributor 9 2 No response after auto setup e Check that there is normal process going on during auto setup e Check that the power and signal wiring are connected correctly e Check that the signal is not leaking to ground o There is NO contact between metal sensor probe and duct wall o Ensure that the gas is not condensing causes signal leakage o Check that the sticky dust does not build up on the base of the sensor and no bridging between sensor probe and duct wall NOTE Front cover illumination sequence F is on 10 Hz rate when signal leaking to the ground is permanent 9 3 Boot check If green wire for starting automatic setup is connected before 15 seconds has elapsed from the power ON boot check is initiated Test takes some seconds and it is indicated with a sharply blinking front cover illumination sequence E 1 Hz rate Snifter A1 User Manual 13 PA SINT If test fails sequence F is initiated 10 Hz rate Snifter A1 User Manual 14 PA SINTROL NOTES Snifter A1 User Manual 15 IN SINIESL SINTROL Oy Ruosilantie 15 00390 Helsinki Finland Tel 3589 5617 360 Fax 358 9 5617 3680 www sintrolproducts com Snifter Al User Manual 16
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