USER`S MANUAL
Contents
1. DESCRIPTION The Armasight Advanced Range Finding Stadia ARFS is an innovative means for adding a passive range finding capability to your image intensified night vision or low light digital imaging device The creative application of reticule projection into the objective lens to display a scaled stadia range finding device demonstrates the established legacy of Armasight to leverage proven optical concepts into new and useful tools for professional operators The ARFS is offered in three different sizes to ensure a solution for most objective lenses and magnifiers The removable ARFS module permits the user to remove the stadia rangefinder for use on other equipment or to restore the device to an unobscured field of view ARMASIGHAHT ARFS Advanced Range Finding Stadia USER S MANUAL ARFS is an optical projection attachment for night vision devices NVD The ARFS mounts to either the objective lens or afocal magnifier of a night vision device The built in illuminated universal stadia range finder allows for accurate target measurements and range estimates SPECIFICATIONS Model Compatible Lenses Devices with Standard Optional Lenses Landing Size of Lens Reticle Type Reticle Brightness Adjustment Automatic Shut Off Time Battery Type Battery Life minimal Environmental Rating Operating Temperature Storage Temperature Dimensions Weight Standard Components Warranty ARFS3 3x Afocal Lens Spark Sirius N2. 14 Nyx 14 Nyx 14 PRO PVS 14 Nyx 7 Nyx 7 PRO PVS 7 60 2mm 62 2mm ARFS4 4x Lens F108mm Discovery 5x Sirius N 14 Nyx 14 Nyx 14 PRO Nyx 7 Nyx 7 PRO 75 5mm 77 5mm ARFS5 5x Afocal Lens Spark Sirius N 14 Nyx 14 Nyx 14 PRO PVS 14 Nyx 7 Nyx 7 PRO PVS 7 74 5mm 76 5mm Illuminated universal stadia range finder with Goniometric Scale Grid the value of one small crosshair division equals 5 millirads 5 digits or 18 ang min the value of a big division 10 millirads 10 digits or 36 ang min Digital 3 minutes 2 x CR2016 3V 400 measurements 20 hours Water and Fog Resistant 30 50 C 22 122 F 50 70 C 58 158 F 47 5X97 7X101 mm 1 8 Xx3 1 Xx3 3 1 9 X3 8 x7 1 8 X3 7 X3 8 211 g 0 47 Ibs 257 g 0 57 Ibs 237 g 0 52 Ibs ARFS Protective Cap 2 x CR2016 Batteries Hex Key Wrench 2 Years 46 7X78 9x83 9 mm 46x93 1x97 4 mm INSTALLATION Take off the cap from the lens of NVD Loosen the fixing screw on the lateral face OPERATING BUTTON of the body of ARFS Install the ARFS onto the lens of NVD as shown on the image Tighten the fixing screw of the ARFS The AFRS comes with two CR2016 batteries installed Replace the batteries as follows 1 Using 2 mm hex key wrench unscrew PROTECTIVE the four screws that secure the top cover to the the unit Remove the cover EE 2 Replace the batteries with two new ones CR2016 3V Install the batterie
3. s aligning their polarity markings with those embossed on the compartment 3 Replace the cover and tighten the screws OPERATING PROCEDURES Switch on the NVD Remove the ARFS protective cap Adjust the unit until the image is clear and sharp Make short press on the ARFS button to switch on the projection device of the mark The projection device switches on with the medium level of the crosshair brightness To adjust brightness of the crosshair press and hold down the operating button of AFRS Brightness of the crosshair will decrease Upon reaching comfortable brightness level release the button To increase the brightness of a crosshair press the button repeatedly and hold it brightness of the crosshair will increase To switch off the projection device press the button short NOTE You can use the NVD with ARFS during day time with the ARFS protective cap on RETICLE USING Look through the eye glass of the NVD to combine the image of the object with goniometric scale grid of the projector and guided by the following to determine the angular size of the object by the number of grid divisions the value of one small crosshair division equals 5 millirads 5 digits or 18 ang min the value of a big division 10 millirads 10 digits or 36 horizontal angle should be determined along the horizontal scale grid vertical along the vertical scale grid if you know the height length or width of the object the di
4. stance to the object D m determined according to a formula D L x 1000 a L is a given length of the object m ais the apparent visual on scale grid angle ARFS MOUNTED ON THE NVD The example of range finding The average man height L 1 75 m if his image observed in the device according to the scale grid equals 20 millirads a 20 digits then the distance to him equals D 1 75 x 1000 20 87 5 m GONIOMETRIC GRID Armasight Inc Phone 888 959 2259 815 Dubuque Avenue South San Francisco CA 94080 Fax 888 959 2260 info armasight com www armasight com Intl Phone Fax 650 492 7755
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