Cool Air LBW-WATCHMAN-EC Manual Download | Manualshive

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WATCHMAN

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LBW-

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Summary of Contents for LBW-WATCHMAN-EC

Page 1: ...WATCHMAN M Mo od de el l E EL LE EC CT TR RO OC CH HE EM MI IC CA AL L S SE EN NS SO OR R O ON NL LY Y LBW W WA AT TC CH HM MA AN N E EC C A Am mm mo on ni ia a L Le ea ak k D De et te ec ct to or r ...

Page 2: ... RY Y S SE EL LE EC CT TO OR R S SW WI IT TC CH H 9 P PO OW WE ER R 11 4 4 2 20 0 M MA A A AN NA AL LO OG G O OU UT TP PU UT T 11 WIRING THE LBW WATCHMAN 12 I IN NS ST TA AL LL LA AT TI IO ON N A AN ND D S SE ET TU UP P 1 13 3 P PR RO OG GR RA AM MM MI IN NG G A AN ND D O OP PE ER RA AT TI IO ON N 1 14 4 S SE ET TT TI IN NG G T TH HE E D DE ES SI IR RE ED D D DI IS SP PL LA AY Y M MO OD DE E 14 P ...

Page 3: ... High selectivity to NH3 Small influence by H2S Excellent durability to NH3 exposure Linear output Long life Stable baseline Unique leak proof structure Outputs 4 20 mA DC conforming to S50 01 ratings Type 2L Operating Temperature 50 F to 125 F Operating Humidity 5 to 95 RH non condensing Power Requirements 18 to 36 VDC 0 25 Amps max Dimensions 4 H x 7 W x 4 D Weight 1 5 lbs Enclosure NEMA 4X rate...

Page 4: ... li id d S St ta at te e S Se en ns so or r C Co on nt ta ac ct t C Co oo ol l A Ai ir r i in nc co or rp po or ra at te ed d s sa al le es s s sa al le es s c co oo ol la ai ir ri in nc c c co om m o or r 7 76 63 3 2 20 05 5 0 08 84 44 4 f fo or r m mo or re e i in nf fo or rm ma at ti io on n C CA AU UT TI IO ON N After applying power be sure the detector has been powered for at least 20 minutes...

Page 5: ...tandard features Programmable Lo Alarm and Hi Alarm set points for use with Cool Air Incorporated Digital Central Supervisory Alarm Panel Local mount or remote alarm light and horn or remote alarm light and horn 4 20 mA analog output signals for ammonia level which can communicate directly with computer systems such as PLC s Selectable PPM reading start 0PPM 10PPM or 25PPM The detector hardware an...

Page 6: ...rm A AC C P Po ow we er r S Su up pp pl ly y m mo ou un nt te ed d e ex xt te er rn na al ll ly y b by y t th he e c cu us st to om me er r P PA AR RT TS S D DE ES SC CR RI IP PT TI IO ON N F Fr ro on nt t P Pa an ne el l D Di is sp pl la ay y The front panel display is comprised of a digital display The seven segment four digit display indicates a variety of information such as ammonia concentrat...

Page 7: ...e time The sensor is protected by a pre filter to extend the life in harsh environments The sensor is also designed for a quick attach washdown tube FIGURE 1 P Pa an ne el l M Mo ou un nt te ed d C Ci ir rc cu ui it t B Bo oa ar rd d The panel mounted circuit board contains the controls necessary for programming and operating the detector Each control is described in detail below ...

Page 8: ...The detector will be in program mode when the program LED is on The detector will be in service mode when the service LED is on When both the program and service LEDs are on the detector is in both program mode and service mode When the detector is in the service mode only the display will alternate between the sensor reading in PPM and SEr service mode indication This is done as a reminder to ret...

Page 9: ...ng the set points and other optional settings and during calibration of the detector R Ro ot ta ar ry y S Se el le ec ct to or r S Sw wi it tc ch h The rotary selector switch labeled MENU SELECT on the panel mounted circuit board is used for performing functions such as Setting the information displayed on the front panel Programming set points Displaying system information Calibrating the detecto...

Page 10: ...set the switch to the desired position For example if you set the rotary selector switch to position 3 to program the alarm set point and if after 5 minutes of inactivity the display reverts to displaying ammonia concentration Move the switch to 0 then back to 3 to continue programming the alarm set point Caution Before closing the detector enclosure be sure to return the rotary selector switch to...

Page 11: ...e with external devices such as computers PLCs and digital displays The output conforms to ISA S50 01 ratings Type 2L The ammonia level detector output current TB1 S terminal of Enclosure Mounted Circuit Board is proportional to ammonia PPM dependent on the range The PPM value can be determined using one of the following formulas PPM 62 5 I 4 0 to 1000 PPM Range PPM 50 I 4 0 to 800 PPM Range PPM 3...

Page 12: ...um 36 VDC can be used The voltage drop across the detector and the receiver together must not exceed the power supply voltage This circuit is shown in Figure A below See also Figure 5 above FIGURE A For the WATCHMAN maximum allowable resistance in the receiving device must not exceed Rmax using this formula Rmax 50 Vs 7 5 where Vs is the supply voltage in volts DC for the 4 20 mA circuit For examp...

Page 13: ...ector will return normal status The detector is calibrated and programmed at the factory To program the detector for its specific installation follow these steps 1 Apply power to the detector and allow the sensor to warm to normal operating temperature at normal operating temperature the display will read 0 2 Program the ammonia Lo Alarm and Hi Alarm set points See the next section on programming ...

Page 14: ... all readings above 9PPM c d25 Display shows all readings above 24PPM 4 Press and hold the ENTER button for at least 2 seconds The new set point is now programmed 5 Return the rotary selector switch to the position 0 Be sure the ammonia concentration reading is below the Lo Alarm set point if in use then place the detector in normal operating mode and close the detector enclosure P Pr ro og gr ra ...

Page 15: ...olution and stability of the PPM value indicated by the 4 20 mA signal is better than on higher ranges and this range is compatible with external equipment like the Cool Air DCSAP Use the other ranges if there is reason to measure ammonia concentrations other than 250 PPM To program the 4 20 mA range follow these steps 1 Open the detector enclosure and place the detector in program mode Optionally...

Page 16: ...r switch to position 4 The display will indicate the current service mode time out 15d 15 minutes 30d 30 minutes 45d 45 minutes or 60d 60 minutes 3 Press the UP or DOWN button until the display indicates the desired service mode timeout 4 Press and hold the ENTER button for at least 2 seconds The new service mode timeout is now programmed 5 Return the rotary selector switch to position 0 Return th...

Page 17: ...sensor is installed the detector must be recalibrated All tests and calibrations must be recorded on an appropriate log sheet T Te es st ti in ng g t th he e D De et te ec ct to or r The detector hardware and the connected system response can be tested without exposing the sensor to ammonia R Rotate the rotary switch to position 5 Pressing the DOWN button will force the detector to simulate an amm...

Page 18: ...in program mode if needed the detector can be placed in program and service mode This step deactivates the Lo alarm and Hi alarm outputs and sets the 4 to 20mA output to 4mA or 0ppm 2 2 S Se et t t th he e r ro ot ta ar ry y s se el le ec ct to or r s sw wi it tc ch h t to o p po os si it ti io on n 2 2 3 3 W Wi it th h n no o g ga as s a ap pp pl li ie ed d r ro oo om m a ai ir r n no o a am mm m...

Page 19: ...w the LO alarm set point then press the mode button until the detector is in Normal mode Program and Service LED s off Testing and maintenance supplies Calibration and test kit P N CAI CAL KIT Cal Adaptor for Electrochemical Sensor P N EC CAL ADPT 0 to 500 PPM Electrochemical Sensor P N 277 203 WATCHMAN Ammonia 100 PPM Calibration Gas Balance Air in a 34 Liter Aluminum Cylinder Connection Type C 1...

Page 20: ...thereof proves to be defective in material or workmanship within thirty six 36 months from the date of shipment such defective part will be repaired or replaced free of charge at CAI s discretion if shipped prepaid to CAI at 1544 134th Avenue NE Ham Lake MN 55304 in a package equal to or in the original package Before making the return shipment contact CAI 763 205 00844 to request an RMA to be pro...

Page 21: ...ranty the ammonia gas sensor shall be subject to inspection by CAI for abuse misuse negligence damage by accident abnormal conditions of operation handling or use by the Purchaser Should such inspection indicate that the ammonia sensor has prematurely failed due to abuse misuse negligence or damage by accident or abnormal conditions of operation handling or use by the Purchaser this limited warran...

Page 22: ...MED 2 Limitation of Liability IT IS UNDERSTOOD AND AGREED THAT COOL AIR INCORPORATED S LIABILITY WHETHER IN CONTRACT IN TORT UNDER ANY WARRANTY IN NEGLIGENCE OR OTHERWISE SHALL NOT EXCEED THE AMOUNT OF THE PURCHASE PRICE PAID BY THE PURCHASER FOR THE PRODUCT AND UNDER NO CIRCUMSTANCES SHALL COOL AIR INCORPORATED BE LIABLE FOR SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES THE PRICE STATED FOR THE PRODU...

Page 23: ...23 P a g e Rev 2 0 8 1 2018 ...

Page 24: ...VE E N NE E H Ha am m L La ak ke e M MN N 5 55 53 30 04 4 U US SA A P Ph ho on ne e 7 76 63 3 2 20 05 5 0 08 84 44 4 F Fa ax x 7 76 63 3 4 43 32 2 9 92 29 95 5 i in nf fo o c co oo ol la ai ir ri in nc c c co om m w ww ww w c co oo ol la ai ir ri in nc c c co om m ...

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