#12-HPx1 LC Eddy Absorber Kit

Absorbers | Eddy Current Liquid |


50 Hp* (continuous – water cooled) kit includes: #12-HPx1 (High-Power single rotor) liquid-cooled 192-volt DC eddy-current absorber, eddy-current control module (240-volt AC input), 100-pound S-beam load cell, moment arm and linkage, DYNOmite-Pro data-acquisition computer, auto-load control (requires DYNO-MAX software), 28-channel data harness, and manual. (Other voltages available – call.)


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 − 28 channel

Expansion capacity upgrades

28-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 (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 (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, etc.

Torque Transducer  


Environmentally sealed, moment-length independent, torque arm

Maximum displayed torque

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

Load-cell range

0 to 100 foot pounds [0 to 136 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
Absorber Mounting Frame  


Heavy-duty steel absorber-mounting base

Mechanical cart construction Heavy-duty formed-steel frame − with mounting holes and hardware for absorber’s trunnion mounts, integral feet for floor anchoring
Absorber to engine coupling  Inline 1:1 ratio (via customer-supplied driveshaft) to absorber’s 1310-style flange − included
Driveshaft 1310 style – telescoping drive shaft (custom dampening-specifications – optional)
Driveshaft guard Installer responsibility
Installation Bolts to floor, with appropriate (customer supplied) anchoring hardware
Engine-Cart (Option) 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 (typical loading plots available)  water brakes require a minimum water flow of 1 gpm @ 40+ psi for every 10 continuous Hp.
Maximum displayed power Unlimited Hp [KW] − real-time
Maximum displayed torque Unlimited Ft-Lbs [N-m] − real-time
Maximum continuous power 50+ Hp [37+ KW] @ 11,000 RPM − 44+ Hp [33+ KW] @ 5,000 RPM (see absorber’s load chart − other ranges available)
Maximum continuous torque 50+ Ft-Lbs [68+ Nm]  @ 2,000 RPM (see absorber’s load chart − other ranges available)
Maximum RPM 14,000+ RPM (other ranges available, see absorber load charts)
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 customer-supplied driveshaft) to absorber’s 1310-style flange − included
Absorber speed / RPM regulation Electronic auto-load control, closed-loop PID, with automated test cycles via (optional) DYNO-MAX
Absorption method Liquid-cooled eddy-current (magnetic) absorbers (dry gap) with included electronic auto-load control optional − via (optional) DYNO-MAX software
Absorber cooling Constant-flow through (electroless-nickel finish) loss plates − with low-flow and high-temperature protection interlocks (included)
Bidirectional capable Yes
Coil Square-wire copper − provides maximum cross-sectional area for lowest resistance and strongest magnetic field
Hoses Stainless-steel braided with anodized aircraft fittings (included)
Power requirements (for load control) 15-amps @ 220-volts AC
Rotor 8″-diameter high-power low-inertia (dry gap)
Throttle (torque / power) regulation (optional) 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)
Base assembly (optional) Fully-welded heavy-duty formed-steel
Engine cart assembly (optional) Fully-welded heavy-duty formed-steel
Base Length 20½” [52 cm]
Base Width 20″ [51 cm]
Base Height (at frame’s top of base) 20½” [52 cm]
Cart (option) Width 32″ [81 cm]
Cart (option) Length 22″ [56 cm]
Cart (option) Height 44¼” [112 cm]
Height to engine centerline (from floor) ~32½” [83 cm] (adjustable)
Weight (with optional base) 260 pounds [118 kg] (less cart)
Dynamometer Control Software Options  
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
Control Console and PC Options  
Monitor “Pro” console with genuine Intel-equipped Dell PC and 17″ LCD display
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
Data Collection Options  
Airflow Turbines Measure real-time intake CFM and BSAC
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)
Exhaust Gas Temperature thermocouples Fast-acting EGT probes allow reading and displaying up to eight sensors per DYNOmite-Pro board set
Electronic throttle control Unit allows PC to throttle engine during DYNO-MAX automated-test cycles
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
Pressure transducers Universal 0-5 volts pressure sensors
Weather station module Weather station provides automatic entry of air temperature, barometric pressure, and relative humidity
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
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: #013-12P1--1K

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