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Emerson UVU-140A-AR - page 1
UVU-140A AND UVU -140-AR UNIT IZED UL TRAVI OLET F IRE DETECTOR USER MANUAL Part Number: MA N-0002-00 R ev. 1 ...
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Emerson UVU-140A-AR - page 2
Copy right © 2001 Net Safety Monitoring I NC . Printed in Can ada This m an ual i s prov id ed for info rmat iona l pur pose s only . A ltho ug h the inform at ion co ntai ned in this m anua l is believed to be accurate, it co uld include technica l inaccuracies or ty pog raphical errors. Cha nges are, therefo re, periodically made to the inform a ...
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Emerson UVU-140A-AR - page 3
TABLE of CONTENTS C H A P T E R 1 T E C H N I C A L I N F O R M A T I O N ......... ......... ......... ............ 1 I n t r o d u c t i o n ...... ......... ......... ......... ......... ......... ......... ...... ......... ..... 1 F e a t u r e s ...... ......... ......... ......... ......... ......... ......... ...... ......... ....... 1 S p e ...
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Emerson UVU-140A-AR - page 4
A ppendix A Net Safety Monitoring Inc. Electrostatic Sensitive Device Handling P r o c e d u r e ......... ............ ......... ......... ......... ......... ...... 17 A ppendix B C ommon Ultr a-Violet A bsorb ing Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 A p p e n d i x C W i r e R e s i s t a n c e I n O h m s ......... ...
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Emerson UVU-140A-AR - page 5
1 Figure 1 - Various S pectral Distrib utions CHA PT ER 1 T EC HNI CAL I NF ORMAT I ON Introduction The UVU- 140- A & UVU- 140-AR fire detectors prov ide fast, reliable flame de tection in a wide variety of app lic ati ons. T he au toma tic visual inte grit y ( vi ) feature allow s for a continuous c heck of optical surfaces, sensitivity and el ...
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Emerson UVU-140A-AR - page 6
2 Specification s < Operating Voltage Range: 24Vdc nom inal: 10.5 to 32 Vdc If a fuse is rated in line with the m ain powe r supply, it should be a 1A slow- blow ty pe. I f a power supply w ith current lim iting is u sed it should h ave a rating appropriate for the inrush current requ ired b y th e pr oduc t. < Power C onsu mption (UV U-1 40- ...
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Emerson UVU-140A-AR - page 7
3 1A @ 30Vdc 0.5A @ 125Vac < Response T ime: Response to a saturating (hig h intensity) UV source is typically 10 m illiseconds Ala rm r espo nse ti me is pro gra m mab le < Time Delay Settings: DI P switch selectable 3, 4, 5 o r 7 seconds < Sensitivity Settings: DI P switch selectable 8, 16, 24 or 32 coun ts per second < Humidity Range ...
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Emerson UVU-140A-AR - page 8
4 Figure 2 - Det ector cone of vision CHA PT ER 2 I NST AL LA TI ON What’s in the package Rem ove all the co mpone nts from the packing box(s) carefully ; check compone nts against th e pack ing list. I nspect all c om pone nts fo r obv ious dam age and br ok en/loo se p arts. Not ify the ca rrier and distri buto r im med iate ly if damag e is fo ...
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Emerson UVU-140A-AR - page 9
5 between the d etector and the so urces of potential fires. Sm all concentrations of these types of gases m ay no t absorb enoug h UV radiation to cause a problem , but when hig her concen trations of these g ases are present th e detectors m ay bec ome blind as not enoug h ultra- violet rad iation can reach them to activate an alarm . Moving de t ...
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Emerson UVU-140A-AR - page 10
6 Figure 3 - Detector with Swivel Moun t metre) below the ceiling where they may respo nd before being obscured by smoke. Consider shor tenin g time d elay setti ngs w hen smoke is exp ected to a ccumula te du ring a fire . If den se smoke is likely to accumulate prior to flame (as in an electrica l fire), supplement UV detectors with other protect ...
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Emerson UVU-140A-AR - page 11
7 Figur e 7 - JB4-UV -T Junct ion Box Top V i ew Figure 5 - Swi vel Mount Dimensi ons Fi gure 4 - Detector D i m ensions Figur e 6 - JB4-UV -T Junct ion Box Side View ...
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Emerson UVU-140A-AR - page 12
8 General Wir ing Requiremen ts NOTE: The wiring procedures in this manual are intend ed to ensure proper function ing of the device u nder normal conditions. How ever, due to the many variations in wiring codes and regulation s, total complia nce to these or din ance s ca nnot b e gu aran teed . Be cert ain th at a ll wir ing complies with appl ic ...
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Emerson UVU-140A-AR - page 13
9 Fig ure 8 - W iring for U V U -1 40 -A Wirin g Dia gram for U VU-1 40-A ...
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Emerson UVU-140A-AR - page 14
10 Fi g ur e 9 - W i r i n g f o r UVU- 14 0- AR Wiring Diag ram f or UVU-140-AR NOTE: If the 4-20 mA signa l is not used connect it to (- ) - 24Vdc “system common” ...
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Emerson UVU-140A-AR - page 15
11 Figur e 10 - DIP switch oper ati on and l ocati on Detector Set tings System Sensitivity The U V tub e coun t rat e g enerat ed b y dif fere nt fir es at t he sam e dist ance is unp redictab le. G ener ally if a fire doub les in siz e, th e tu be res pons e is in crea sed by a bout 60 pe rcen t. The UVU -14 0- A & U VU- 140- AR d etecto rs h ...
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Emerson UVU-140A-AR - page 16
12 Table 3 - C oil and Relay S tatus CO I L AND RELAY SETTINGS TABLE Switch 1 Swit ch 2 D e-energi zed and non-lat ching ON ON Energized and non- lat ching ON O FF D e-energi zed and lat ching OFF ON Energized and lat ching OFF O FF CHAPTER 3 ST ART UP AND TEST Start up P rocedure NOTE: Be sure that the detector is cor rectly aimed at the poten tia ...
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Emerson UVU-140A-AR - page 17
13 Manual vi Test Pr ocedure The detector has a manual vi input. The manual vi test is perform ed by connecting this input to the system power for the duration of the test. This can be done by connecting a m omentary contact pu shbutton between sy stem power and the manual vi inpu t, and then h olding the push button to perform the test. NOTE: The ...
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Emerson UVU-140A-AR - page 18
14 The UVU- 140- A or UVU- 140-AR curren t output w ill change w ith the am ount of ultrav iolet light be ing detected (see Tab le 4 ). 2. Turn off the UV test lam p. 3. Re pea t s te ps 1 & 2 f or all de tec to rs in the sys te m. 4. After all detectors hav e been check ed, return the sy stem to the n ormal op erating m ode. 5. Restore power t ...
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Emerson UVU-140A-AR - page 19
15 CHAPTER 5 MAI NTENANCE Routine M aintenance The UVU-14 0-A & UVU-14 0-AR fir e det ect ors re qui re no per iodi c cal ibr ati on. T o maint ai n maximum se nsi tivit y, the viewing window and reflector should be clean ed on a routine basis depending on the type and amount of contam inants in the area. The rubber o- ring on the detector hous ...
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Emerson UVU-140A-AR - page 20
16 Device Repair and Retur n The U VU- 140- A and UVU -14 0-A R fire dete ctors are no t des ig ned to be repair ed b y th e cust om er in the fi eld. I f a problem should dev elop, first carefully check for proper w iring and pro gram ming . I f it is determ ined that the problem is caused by an electrical m alfunction, the unit m ust be returned ...
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Emerson UVU-140A-AR - page 21
17 A p p e n d ix A N e t S a fe ty M o n ito rin g In c . E lec tr o sta tic S en siti ve D ev i c e H a n dling Pro c ed ure With the tr end towar d in creasi ngly wides pread use of m icro proc esso rs and a w ide v arie ty o f othe r elec tros tatic sensitive sem iconductor devices, the need for care ful handling of equipm ent containing these ...
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Emerson UVU-140A-AR - page 22
18 Appendi x B Com m on U l tr a- Viol et Abs or bi ng Gases Since the U VU -140- A & UVU- 140-AR fire d etectors are desig ned to detect fires by respo nding to the ultra- violet (UV) radiation they em it, it is very im portant to be aw are of UV absorbing gases th at m ay be present between the detect or and the sour ces of potent ial fi res. ...
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Emerson UVU-140A-AR - page 23
19 A pp en di x C Wi r e R es i s t a nc e I n Oh ms Dist ance (F eet) AW G #20 AW G #18 AW G #16 AW G #14 AW G #12 AW G #10 AW G #8 100 1. 02 0.64 0. 40 0.25 0. 16 0.10 0. 06 200 2. 03 1.28 0. 08 0.51 0. 32 0.20 0. 13 300 3. 05 1.92 1. 20 0.76 0. 48 0.30 0. 19 400 4. 06 2.55 1. 61 1.01 0. 64 0.40 0. 25 500 5. 08 3.20 2. 01 1.26 0. 79 0.50 0. 31 60 ...
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Emerson UVU-140A-AR - page 24
Di st r ib ut e d B y: 272 1 Ho pewell P lac e N.E . Calgary , A lberta, Cana da T 1Y 7J7 Telep hone: (403) 219-068 8 Fax: (403 ) 219-0694 w ww .net-safety .com E-mail: nets afe@net-safety .com ...
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