Marine "Prop-Shaft" Dynamometers - Specifications

DYNOmite Data Acquisition Computer:

Expandable, surface mount, board system runs on 120-volt 60-Hz AC, 240-volt 50-Hz AC, or 12-volt DC
Portable “Pro” 28-channel capable handheld with 168-character LCD & keypad
Up to 1,000 recordings per second (per channel)
Quick disconnect data harness
Non-volatile set-up memory
Rechargeable back-up battery option
Captures over 1-hour duration test runs
Real time and data playback displays
Observed and SAE corrected reports
“Smart Record” automated recorder triggering
RS-232 or USB output to optional printer or PC with DYNO-MAX 2000 software option

Torque Transducer:

Waterproof strain gauge
1% of full scale typical accuracy
Semi-automatic zero offset calibration
Temperature compensated

Hp, Torque, and RPM Capacity:

Actual load capacity depends on selected water brake & test RPM (loading plots available)
Hp from 50 to 400 (standard - single-rotor)
Hp options from 2 to over 800
Torque options from 1 to over 1,000 lb-ft
RPM from 1,000 to over 12,000 (standard) - optional absorbers to over 17,000

Engine Tachometer:

0 - 32,000+ RPM LCD display
Quartz crystal calibrated
RPM pulse type is selectable from ½ to 12 pulses per revolution
Magnetic absorber pick-up (standard)
Optional “clamp-on” inductive pick-up

Load Control:

Manual knob water brake load valve (standard)
Optional Auto-Load Servo (High or Ultra-Flow)
Optional Electronic Throttle Controller

Water Brake Absorber:

13" absorbers require minimum clearance of 6-5/8" from prop-shaft to cavitation plate
Standard - “400” single-rotor toroid - 13"
Optional - “800” Siamese-rotor toroid - 13"
Optional - light-duty toroidal flow - 7" or 9"
CNC machined from aircraft aluminum
Dual heavy-duty sealed bearings
Stainless steel, heat treated arbor shaft
Adjustable load characteristics
External Zerk grease fittings
Optional “Auto-Lube” kit

Prop-Shaft Adapter Hardware:

Adapters for BIA 1"-15, 1"-19, and 7/8"-13 splined shafts (standard - single-rotor)
    1"-15, 1"-19 (optional - Siamese-rotor 13")
Other optional adapters and hardware available

Optional Inboard Engine Test Stand:

Heavy-duty zero torque design
Adjustable universal mounts
Leveling jack screw
Heavy-duty locking casters
Quick disconnect console mounts
Stainless “wall” console with billet aluminum throttle & mechanical cable
Optional thermostatically controlled universal cooling tower
Optional “Pro” Test Stand Upgrade - includes: fuel tank, fuel pump, fuel filter, starter solenoid, stainless steel engine drip tray, battery mounts, and stand wiring harness

Optional Portable Thermal Printer:

Rechargeable NiCad battery powered
120-volt AC charger adapter included
Parallel port interface to DYNOmite-Pro
40 column standard ASCII font
Rugged, compact, and lightweight design 

Approximate Dimensions and Weight:

Standard dyno kit including carrying case -
    11"W x 28"L x 17"H
    weight - 59 pounds

Data Collection Options:

Air temperature, humidity, and barometric pressure “Weather Station”
Brake specific fuel consumption (calculated)
DYNO-MAX 2000 software
Engine temperature thermistors
Exhaust gas temperature thermocouple kits
Fuel flow turbine kits
Fuel/manifold pressure transducers
Jack shaft RPM/MPH magnetic pick-ups
MPH pitot tube pressure transducer
Oil pressure transducers
Sparkplug temperature thermocouples

Other Options:

Calibration weight kits
Fuel hydrometer kits
Ignition and control relay kits
Portable gasoline powered water pumps
Sling psychrometer