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International Visibility Scale

Points

Qualitative

Visibility

Range of

Visibility

Transmissivity

per Kilometer

Atmospheric

Conditions

Very Poor

0 - 50 m

< 10

-6

Very dense fog

50 - 200 m

-4

- 10

-6

Dense fog; very

heavy snow

200 - 500 m

-3

- 10

-4

Moderate fog;

heavy snow

Poor

500 - 1,000 m

-2

- 10

-3

Light fog;

moderate snow;

thick haze

1 - 2 km

0.02 - 0.15

Moderate snow;
very heavy rain;

moderate haze

Intermediate

2 - 4 km

0.15 - 0.4

Light snow; heavy

rain; thin haze

4 - 10 km

0.4 - 0.7

Moderate rain;

very light snow;

thin haze

Good

10 - 20 km

0.7 - 0.8

Light rain; no

precipitation

Very Good

20 - 50 km

0.8 - 0.9

No precipitation

Exceptional

> 50 km

0.9 - 1.0

Perfectly pure air

Notes: 1. The transmittance refers to

= 0.61

. 2. The values for 0 - 3 points are rough estimates due to meager

experimental data.

(Bramson: Infrared Radiation, Plenum Press, N.Y., 1968)

TABLE 1

ELTEC Instruments, Inc. P.O. Box 9610 Daytona Beach, Florida 32120-9610 U.S.A.

Tel (USA & Canada): (800) 874-7780 Tel (Outside USA): (386) 252-0411 Fax (386) 258-3791

Web: www.eltecinstruments.com E-Mail: [email protected]

Содержание IR-EYE 860M1

Страница 1: ...mate with Contractor Developed Signal Processing or Legacy Systems Model 860M1 Model 860M5 Model 860M6 Please note These telescopes do not provide either relay or TTL outputs They are made available for special signal processing systems For units that do provide relay and TTL outputs see Eltec Models 864 and 864M3 ...

Страница 2: ...THIS PAGE LEFT INTENTIONALLY BLANK ...

Страница 3: ...SE ALARM SOURCES SECTION 2 INSTALLATION AND OPERATION 2 1 INTRODUCTION AND PRECAUTIONS 2 2 UNPACKING 2 3 POWER REQUIREMENTS 2 4 CONNECTION TO EXTERNAL EQUIPMENT 2 5 TAMPER SENSE MODEL 860M5 AND 860M6 ONLY 2 6 AMPLIFICATION REQUIREMENTS 2 7 MECHANICAL OUTLINE 2 8 MOUNTING 2 9 MOUNTING AND ACCESSORIES 2 10 OPERATION 2 11 ALIGNMENT 2 12 WALK TESTING 2 13 WALK TESTING FIELD OF VIEW 2 14 MAINTENANCE 2 ...

Страница 4: ... application may require a broadening of that range with a consequent increase in noise Eltec recommends that you AC couple the telescope s analog output The current draw per channel should be typically 8 microamps 1 2 BASICS OF PASSIVE INFRARED PIR DETECTION Each person object or animal emits infrared energy as a function of its surface temperature and size For temperatures around ambient the max...

Страница 5: ...rature contrast can be as little as 1o C or less either positive or negative for a person at the nominal distance of 500ft to trigger the alarm A precison mirror focuses the radiation onto a twin channel pyroelectric detector which will produce a defined signal from a moving target Two stage optical filtering restricts the radiation to the atmospheric window 8 14 microns where the effects of the n...

Страница 6: ...nfrared signal attenuation can almost be neglected for points 1 to 9 on the International Visibility Scale see Table 1 corresponding to dense fog and perfectly pure air respectively Only for visibility 0 very dense fog will the attenuation be significant but detection range will still be typically up to 50 more than the distance the human eye will see Page 3 DISTANCE COVERAGE X SIZE Y SIZE 100 ft ...

Страница 7: ...vided into portions of 300 ft each being covered by one telescope see Fig 1 4 This kind of set up will give reliable detection under virtually all climatic conditions It is important to note that the range of the telescope is not limited by but a function of size and temperature of the target A car or an airplane may trigger an alarm when crossing the field of view at a mile distance depending on ...

Страница 8: ...g wave infrared See Fig 1 8 1 9 POTENTIAL FALSE ALARM SOURCES Various sources may affect the performance of an outdoor security system For instance DO NOT aim the telescope into the horizon straight out UNLESS you are aiming into a wall the side of a building or an embankment that is within your monitored perimeter Although the telescope will detect a person at 500 feet under most conditions it ma...

Страница 9: ...trips the first thing to check after verifying that there is proper voltages to electronics and telescope is the aiming to make sure that detection of motion of distant objects is not the source of unwanted alarm signals REFER TO OPERATION AND ALIGNMENT SECTIONS Passive infrared detection can perform exceptionally well under almost all conditions Page 6 Figure 1 9 Grounding with Actual Terrain Tel...

Страница 10: ... damaged or broken Use precautions in lightning storms In lightning prone areas take measures to arrest lightning discharges and electrostatic buildup 2 2 UNPACKING Remove the unit from the shipping container and carefully check for signs of damage Any such damage should be reported to your supplier or to the Technical Support staff at Eltec Instruments directly Do not attempt to install a damaged...

Страница 11: ...3µF C6 1 54K R4 3 3µF C3 V 5 TO 15V GND ANALOG OUTPUT 100K 100µF C1 ANALOG OUTPUT 13K R5 13K R10 6 81M R7 6 81M R2 C2 2 2nF 1Hz TO 10Hz SINGLE SUPPLY AMP WITH GAIN OF 500 NOTES ALL CAPACITORS ARE 10 10V ALUM EXCEPT FOR C2 AND C5 CAPACITORS C1 AND C4 MUST HAVE A LEAKAGE 1µA ALL RESISTORS ARE 1 1 4W MFLM AMPLIFIER MAY HAVE TURN ON TIME OF SEVERAL MINUTES OFFSET WILL BE ONE HALF OF V ADJUST RATIO OF ...

Страница 12: ...r stable mounting and easy aiming the following accessories can be supplied Page 9 Double Mounting Bracket No AO54M1 The part clasping the telescope is fixed to a platform with a nut for adjustment of the elevation The other part is fixed to the pole with 360 o rotation capability for aiming the telescope to any desired direction Suitable for pole diameters of 1 5 to 3 0 inches Mounting Bracket No...

Страница 13: ...lescope does not alarm through the trouble period when blinded then the actual field of view should be verified by walk testing to insure that the telescope is not picking up distant vehicles or motion from an adjacent area In addition many telescope users have used the scope output to trigger a recording CCTV system with time date stamp for alarm source verification This approach is highly recomm...

Страница 14: ...SEMBLY WILL COMPROMISE THE SEAL AND VOID THE WARRANTY 2 15 MODEL 860M1 860M5 860M6 SPECIFICATIONS Mechanical Weight 2 lbs 12 oz Size 3 50 8 89 cm dia x 12 93 32 84 cm long Enclosure Painted PVC hermetically sealed Color O D Green other colors available as special order Optical Nominal Range 500 ft 152 m with appropriate customer supplied electronics Spectral Response 8 to 14 microns double filtere...

Страница 15: ...cinstruments com ELTEC INSTRUMENTS INC 07 2017 Printed in U S A Form DS860M1 5 6 E 07 2017 NOTICE The information provided herein is believed to be reli able However ELTEC Instruments Inc assumes no responsibility for inaccuracies or omissions Due to industry components being incorporated into ELTEC s devices and ELTEC continually striving for product improvement specifications may change without ...

Страница 16: ...4 10 km 0 4 0 7 Moderate rain very light snow thin haze 7 Good 10 20 km 0 7 0 8 Light rain no precipitation 8 Very Good 20 50 km 0 8 0 9 No precipitation 9 Exceptional 50 km 0 9 1 0 Perfectly pure air Notes 1 The transmittance refers to λ 0 61 µ 2 The values for 0 3 points are rough estimates due to meager experimental data Bramson Infrared Radiation Plenum Press N Y 1968 TABLE 1 ELTEC Instruments...

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