GENERAL   EQUIPMENT   INC.                    

1.1. MetrixPlus C binoculars with laser rangefinder and electronic compass is an optoelectronic  instrument for battlefield surveillance and measurement of targets’ relative coordinates (range, azimuth, elevation). Its Er:Glass laser transmitter enables danger-free field use. Laser transmitter maximum output energy is within the limits of Class 1 IEC specifications (Standard IEC 825-1/2001): Class 1 (Emax = 8 mJ: no laser irradiation hazard).

1.2. Ranging capability: practical ranging capability of MetrixPlus C is 10 – 20 km (at visibility approx. 23 km).

1.3. Extinction ratio: extinction ratio is calculated for an extended target with a reflectivity R=0.85 at a distance of 500 m. Extinction value is equal to or greater than 38 dB.

1.4. By means of the mechanical interface MetrixPlus C can be rapidly attached to the tripod

1.5. MetrixPlus C includes in a single case a binocular sight for aiming and observation, a laser rangefinder, an electronic compass and batteries. As an option, rechargeable Ni-MH battery power pack can be supplied.

1.6. The data are read out on the display inside the right eyepiece. Display consists of two rows of six digits. If multiple targets are simultaneously engaged by the laser beam, the distance to three targets can be measured and sequentially displayed in one ranging.

1.7. Design of the instrument allows operation also with the operator wearing gloves, helmet and protective mask.

1.8. The internal desiccation of the rangefinder and controlling of sealing is secured by a conveniently placed silicagel insert.

1.9. The instrument works safely and if handled properly, any injury of the operator is excluded.

2.2. Laser

2.2.1. Trasmitter:

2.2.1.1. Type Er:glass laser

2.2.1.2. Wavelength 1,543 mm

2.2.1.3. Laser class 1 (Standard IEC 825-1/2001)

2.2.1.4. Method of Q-switching rotating prism

2.2.1.5. Eyesafe distance (NOHD) 0 m

2.2.1.6. Pulse energy < 8 mJ

2.2.1.7. Pulse duration 30 ns

2.2.1.8. Beam divergence 0,9 mrad

2.2.1.9. Pulse repetition rate 12 shots / minute

2.2.2. Receiver:

2.2.2.1. Type Avalanche photo diode

2.2.2.2. Field of view 1.4 mrad

2.2.2.3. False alarm probability 1 % in normal conditions

2.3.Viewing optics:

2.3.2. Reticle fixed, illuminated, with measuring scale

2.3.3. Magnification 7 x

2.3.4. Dioptry adjustment: - 4 to +4 dptr

2.3.5. Eye distance asdjustment 59 to 72 mm

2.3.6. Resolution in the field of view centre 7"

2.4.Range display:

2.4.1. Data display 2 x 6 digit LED in the eyepiece

2.4.2. Measuring range 50 –19998 m

2.4.3. Range accuracy ± 3 m

2.4.4. Resolution 2 m

2.4.5. Target discrimination 30 m

2.4.6. Minimum range control 50 m – 10000 m

2.4.7. No. of targets measured 3 (or 2 + 1)

2.4.8. First target/last target logic YES (first two + last target)

2.5.Interfaces:

2.5.1. Remote control and data output RS 232

2.5.2. Thread and dovetail for tripod YES

2.6.Power supply:

2.6.1. Battery type 6 x 1,5 V AA; or

9 V NiMH power pack

2.6.2. Optional external supply 8 – 12 V DC

2.6.3. Protection against wrong polarity YES

2.7.Weight and dimensions:

2.7.1. Weight including battery pack 1,95 kg

2.7.2. Dimensions including eyepieces 210 x 190 x101 mm

2.8.Reliability:

2.9.Built-in electronic compass and tilt sensor:

2.9.3. Display: Degrees and mils

3.1.1. Operating temperature (MIL-STD-810F, methods 501.4 and 502.4, procedures I and II) Characteristics of MetrixPlus C are within the specified limits in a temperature range between -30°C and +55°C

3.1.2. Storage temperature (MIL-STD-810F, , methods 501.4 and 502.4, procedures I and II)

3.1.3. MetrixPlus C shall be stored at temperatures between -40°C and +70°C. Characteristics are checked after 92 hours of storage at a temperature of +70°C (no humidity) and after 72 hours of storage at a temperature of -40°C. The check is to be performed at room temperature after at least 2-hour stabilization at room (ambient) temperature.

3.1.4. High temperature with humidity (MIL-STD-810F, method 507.4)

- relative humidity 95%
- temperature +25 / +55°C
- time of exposure 6 cycles, 24 huours each

The check is to be performed at a room (ambient) temperature after at least 2-hour stabilization at room (ambient) temperature.

3.1.5. Corrosion (MIL-STD-810F, method 509.4)

MetrixPlus C shall withstand 7 days in aqueous salt atmosphere without any adverse effects. Salt solution shall be prepared of 50 g kitchen salt (NaCl) pro 1 litre of distilled water. The temperature during the test shall be +35°C, the pressure of the corrosive atmosphere shall be between 860 and 1060 mb.

After the test first the instrument`s exterior shall be checked visually, then its characteristics are to be checked. The corrosion shall be on

- housing and eyepieces: negligible
- switches and controls: negligible
- screws: considerable
 

3.1.6. Leakage (MIL-STD-810F, method 512.4,)

MetrixPlus C shall withstand the following conditions of immersion:

- depth: 1 m
- duration: 1 hour

3.2. Mechanical resistance

3.2.1. Vibrations (MIL-STD-810F, method 514.5)

MetrixPlus C shall withstand the following vibrations:

- amplitude 0.35 mm
- frequency 10 ÷ 55 ÷ 10 Hz (continuous alteration)
- duration 6 hours in vertical direction

3.2.2. Bumps (MIL-STD-810F, method 516.5)

3.2.3. Shocks (MIL-STD-810F, method 516.5 )