Pro 300 Eddy Docking System

Docking Station | Eddy Current Dynamometers | Engine Dynamometers |


300 Hp* (approximate warm) “Pro” system includes: heavy-duty docking station, rolling engine cart, 96-volt DC eddy absorber (120-volts AC input), driveshaft, load cell, two 28-channel data harnesses, mounting hardware, manual, “Pro” Console upgrade with genuine Intel® equipped Dell™ PC and 17″ high resolution LCD monitor, DYNO-MAX “Pro” software, color printer, electronic load control and power supply, Electronic Throttle Controller, Cooling Tower Assembly, illuminated wiring/coolant boom, integral starter, 16-channel EGT thermocouple inputs with 8 sensors, 2-pressure sensors, 2-engine temperature thermistors, 2-airflow turbines, 2-fuel flow turbines, Weather Station, “Pro” Test Stand upgrade, expanded 56-channel DYNOmite-Pro data-acquisition subsystem (with integral control relays) and 12v harness, rolling chair, and banner.


DYNOmite Data-Acquisition Computer

Hardware configuration

Expandable, hybrid (surface-mount and thru-hole) multi-layer board system

Voltage requirements (DAQ only)

Runs on 120-volt 60-Hz AC, 240-volt 50-Hz AC, or 12-volt DC (specify)


CE and/or UL approved (per locale)

Board type and channel capacity

Pro, PC linked − 56 channel

Expansion capacity upgrades

56-channel capable subsystem − standard (112+ channel optional)

Data rate

User-selectable rates up to 200 (1,000 optional) recordings per second (per channel)

Transducer wiring interface

Quick-disconnect data harness − 28-channel (two included)


Non-volatile setup memory

Atmospheric correction

Standard, SAE, DIN, JIS, ECE, J1995, Custom

Wireless-Integration Options


Recording features

Smart Record™ automated recorder triggering

Data interface

User selectable, USB or RS-232 serial port, output to a PC − via DYNO-MAX software option

Third-party data-output interface options

Free Windows driver for National Instrument’s Lab View™ available

Temperature sensor

0 to 255 Fahrenheit [-18 to 124 Celsius] thermistor (two included)

Standard and optional sensor inputs

RPM, torque, frequency, flows, pressures, thermocouples, thermistors, 0-5 volts, Lambda, smoke opacity, position, etc.

Standard and optional control outputs

Ignition shut-off, relay control, load-control stepper output, 0-5 volt D/A, throttle-control stepper output, etc.

Torque Transducer  


Environmentally sealed S-beam load cell

Maximum displayed torque

Unlimited ft-lbs [N-m] − real-time and playback

Load-cell range

0 to 500 foot pounds [0 to 678 Nm] (other ranges available)

Load-cell signal-output gain

3 millivolts/volt

Load-cell resolution Better than 0.02% of full-scale accuracy − typical
Strain gauges Linearized full-bridge strain gauges in balanced Wheatstone bridge
Advanced linearization (software) User-configurable edit table (interpolated deviation map)
System torque resolution Better than 0.1% of full-scale accuracy − typical
Calibration features Semi-automatic calibration of zero offset
Drift stabilization Ratiometric supply-voltage and temperature compensation
Docking Station Assembly  


Delta-frame receiving dock with integral rolling-cart alignment guides and quick-mount clamps

Mechanical dock construction Heavy-duty formed-steel and tube-steel (delta) frame dock − with quick-mount clamps
Mechanical cart construction Heavy-duty tube steel cart and (removable) push bar − with adjustable engine mounts, large-diameter urethane-coated steel wheels and casters
Absorber to engine coupling Inline 1:1 ratio via telescoping heavy-duty drive shaft
Driveshaft 1310 style – telescoping drive shaft (custom dampening-specifications optional)
Driveshaft guard Integral heavy-duty steel − 360 degree
Enclosures Hinged side panels and base compartment access − for easy access and maintenance
Installation Slab-mount with integral anchoring bosses
Engine-Cart Weight Capacities  
Maximum dynamic load 2,000 pounds [908 kg] (other cart options available)
Maximum static load 2,000 pounds [908 kg] (other cart options available)
Power Capacity (RPM dependent)*  
Notice *Actual load capacity depends on test RPM and rotor temperature (typical loading plots available)
Maximum displayed power Unlimited Hp [KW] − real-time
Maximum displayed torque Unlimited Ft-Lbs [N-m] − real-time

Peak steady-state power

~700+ Hp [522+ KW] initial − cold absorber rating (see absorber’s load chart)

Peak steady-state torque

~1,100+ Ft-Lbs [1,491+ Nm] initial − cold absorber rating (see absorber’s load chart)

Typical steady-state power range / time

15 to 300+ Hp [11 to 224+ KW] extended − warm absorber rating (see absorber’s load chart)

Typical steady-state torque range / time

20 to 600+ Ft-Lbs [813+ Nm] extended − warm absorber rating (see absorber’s load chart)

Maximum continuous power 150+ Hp [112+ KW] @ 5,000 RPM (see absorber’s load chart − other ranges available)
Maximum continuous torque 300+ Ft-Lbs [407+ Nm]  @ 1,100 RPM (see absorber’s load chart – other ranges available)
Maximum RPM 5,000+ RPM (other ranges available, see absorber load charts − may be further limited by selected driveshaft)
Engine (and Absorber) Tachometers  
Range 0 – 32,000+ RPM real-time display (user reconfigurable)
Timing reference Quartz-crystal calibrated
Resolution 0.1 RPM (typical)
Primary RPM signal Absorber-mounted hall-effect sensor
Signal compatibility User adjustable trigger voltages − pulse type selectable from ½ to 240 PPR
Alternate tachometer options Optional ignition and optical RPM pickups
Absorber and Load Control  
Absorber to Engine coupling Inline 1:1 ratio via telescoping heavy-duty drive shaft (custom dampening-specifications optional)
Absorber speed / RPM regulation Electronic auto-load control (closed-loop PID) with automated test cycles via DYNO-MAX
Absorption method Electric air-cooled #300 eddy-current absorber with pulse-width-modulated DC controller
Bidirectional capable Yes
Power requirements (for load control) 20-amps @ 240-volts AC (60 or 50 Hertz)
Throttle (torque / power) regulation Electronic-throttle control of torque, power, or % − including automated test cycles via DYNO-MAX (also supports manual control)
Approximate Dimensions and Weight (Do not construct any test-cell foundations until system is on site)
Docking station assembly Delta-frame receiving dock with rolling-cart
Width (frame  less cart) 44½” [113 cm]
Length (frame  less cart) 92″ [234 cm]
Length (with cart) 96″ [244 cm]
Height 47″ [119 cm]
Height (at cart rails) 23½” [60 cm]
Height to engine centerline (from floor) 35″ [89 cm]
Weight 1,050 pounds [476 kg] (less cart)
Dynamometer Control Software  
Features Too many to list here − review DYNO-MAX specification pages and demo CD download
Notable trademarks Remote DYNO-MAX™ − network/internet viewing/control software (included free in DYNO-MAX “Pro“)
Software versions DYNOmite EEPROM version # 9.977 plus DYNO-MAX version #10.23 (included)
Control Console and PC Options  
Monitor “Pro” console with genuine Intel-equipped Dell PC and 19″ LCD display (included)
Network viewing Remote DYNO-MAX™ − network/internet viewing/control software (included free in DYNO-MAX “Pro“)
Rolling operator’s chair Adjustable-height chair with swiveling casters (included)
Data Collection Options  
Airflow Turbines Measure real-time intake CFM and BSAC (two turbines included)
Air/fuel ratio monitoring Optional 9-19 range AFR exhaust-gas module
Dynamometer control software DYNO-MAX software packages (see separate specifications page and demo CD) − (“Pro” version included)
Exhaust Gas Temperature thermocouples Fast-acting EGT probes allow reading and displaying up to eight sensors per DYNOmite-Pro board set. (8 probes included)
Electronic throttle control Unit allows PC to throttle engine during DYNO-MAX automated-test cycles (included)
Exhaust-emissions analyzer Optional five-gas analyzer (O2, CO, CO2, HC’s, and NOX) via digital DYNO-MAX RS-232 link.
Fuel-Flow Turbines Measure real-time fuel consumption and BSFC (two turbines included)
Pressure transducers Universal 0-5 volts pressure sensors (two included)
Weather station module Weather station provides automatic entry of air temperature, barometric pressure, and relative humidity (included)
Other Options  
Cooling Tower Assembly Thermostatically-controlled (adjustable − includes gauge) unit regulates engine temperature − individual rotating top and bottom segments (anodized ), quick-fill/drain valve, and air-bleed knob (included)
Integral engine starters Optional CW and/or CCW absorber-mounted electric or pneumatic starters
Patch Panel Subsystem Optional rolling-stand sensor interface cabinet with quick-disconnect fittings
Model Number: #017-300-2K

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