Topcon RL-VH4DR/G2, Instruction Manual

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Specifications
RL-VH4DR/G2
Accuracy
Horizontal : ±20"
Vertical : ±20"
Auto-leveling range : ±5°
Measuring range (Diameter) : RL-VH4DR : Using with LS-80A / 80B / 90 : 2 m (6.6 ft) to 300 m (984 ft)
(Rotation speeds 300 r.p.m) RL-VH4G2 : Using with LS-80G : 2 m (6.6 ft) to 300 m (984 ft)
Rotation speeds : Changeable (0 to 300 r.p.m)
Scanning width : Maximum 180°
Light source : RL-VH4DR Diode red laser (635nm)
RL-VH4G2 Diode-pumped Solid-state green laser (532nm)
Power supply : 4×D size dry cell batteries (DC6V)
Ni-MH battery pack BT-63Q (It can be charged while using it.)
Continuous operating time : RL-VH4DR 4×D size dry cell batteries (alkaline)90h
at +20°C (+68°F) Ni-MH battery pack BT-63Q 45h
RL-VH4G2 4×D size dry cell batteries (alkaline)27h
Ni-MH battery pack BT-63Q
24h
Tripod screw : Flat and dome head type, W 5"/8 x 11 threads
Operating temperature : -20°C to +50°C (-4°F to +122°F)
Protection against : IP54 (Category 2)
water and dust
Dimensions
: 182 (L) × 167 (W) × 241.5 (H) mm [7.2 (L) × 6.6 (W) × 9.5 (H) in]
Weight : RL-VH4DR 2.2 kg [4.9 lbs] (without dry batteries)
RL-VH4G2 2.6 kg [5.7 lbs] (without dry batteries)