Portable Digital Crane Dynamometers
for on-board and on-site Proof Load Dynamic Testing of Ship, Offshore, Port, Construction & Industrial Cranes, Winches, as well as Bollard Pull Testing and other applications ie wire rope / cable breaking strength, pull out tests, etc.

Ship & Offshore Crane/Derrick on-board load & pull testing/inspection has never been easier.
The best alternative to weights. Accurate, user friendly, and fast. That is all that is needed.
Proof load testing is an essential part of any inspection, repair and maintenance programme. In many countries proof load testing of lifting equipment such as cranes is a mandatory requirement. A successful proof load test instills confidence in customer, operator and owner.
Crane dynamometer with remote digital indication

Sigma Force Series Wireless Dynamometers
The ideal instrument for inspection and certification of Lifting Equipment

· remote digital indication and control
· Accuracy: 0.05% for 1-50t, 0.1% for above 50t capacity
· Breaking strength four times of capacity
· Allowed peak load 1,25 times of capacity
· Taring range 100% of capacity
· Dynamometer protection rating IP67

Sigma Force series wireless dynamometers are microprocessor controlled for high precision accuracy, with calibration by handheld indicator 280D.
Material: Nickel plated high strength alloy steel
Protection class: IP67class water proof
Accuracy: 0.05% for 1-50t, 0.1% for above 50t capacity
Units: Units are clearly display on the screen, available in the following measurement reading: kilograms(kg), short Tons(t) pounds(lb), Newton and kilonewton(kN)
Shackles: High tension industrial standard G2130 anchor shackle bows, galvanized finish
Gravity regulation: The acceleration of gravity can be
regulated through indicator parameter setting according to different places value
Functions: Wireless indicator with many functions: Zero, tare, Low battery warnings, peak hold, overload warning. User calibration (with password)
Set-Point: Two user programmable Set-Point can be used for safety and warning applications or for limit weighing
Package: Packed with carry case, easy to carry
Communication: RS232 output

TECHNICAL SPECIFICATIONS
280D Indicator Display: 25mm (1’’) 5digits LCD with backlight
Power on zero range: 20% F.S.
Manual Zero Range: 4% F.S.
Tare Range: 100% F.S.
Stable Time: ≤5seconds
Overload Indication: 100% F.S. + 9e
Max. Safety Load: 125% F.S.
Ultimate Load: 400% F.S.
IP-67 protected from dust and water
Body Battery: Standard 18650 Lithium battery, 3.7V/3100mAh
Indicator Battery: Standard 18650 Lithiumbattery, 3.7V/3100mAh
Operating Temp.: -20℃~ + 50℃
Operating Humidity: ≤85% RH under 20℃
Wireless Distance: 200M without obstacle
Wireless Frequency: 433MHz

DIMENSIONS

(Dimensions shown are nominal and subject to tolerances)