Engine management, Idle, Rev and Speed limiter system
SafeSTOP BORDER EAST LONDON
In excess of 80 000 Safestop systems are in daily use throughout South and Southern Africa, Kenya, Tanzania, The United Kingdom, Israel and Australia.
The Safestop factory in East London South Africa, employs a staff of eighteen people, most from previously disadvantaged backgrounds who can collectively produce up to one thousand five hundred units daily.
Our own innovative Electronic Engineers design, test and manufacture products for se in the Road and Passenger Transport, Mining, Agriculture, Manufacturing, Shipping, Fishing, Security and Defence Industries, in house.
Safestop is currently advancing into areas by introducing programmable processors that permit the integration of individual systems into one compact multi functional system, enabling the customer to select the system that he requires to meet his specific needs –
all in one unit!
We at Safestop listen to what the marketplace requires and manufacture products to suit the need. We do not dictate what the marketplace should have.
SafeSTOP BODER EAST LONDON Protection
Safestop manufactures protection systems before major damage can occur. It is a policy of Safestop that all protection systems be “Failsafe” and inform the user of a problem prior to stopping the vehicle.
The Safestop electronic engine management system can monitor, up to five individual circuits with dedicated switches to protect against amongst other problems.
- Coolant Loss
- High Average Coolant Temperature
- Cylinder Head Temperature
- Low Engine Oil Pressure
- Low Engine Oil Level
- High Average Engine Oil Temperature
- Broken Fan Belt
In each case the driver / operator receives an audio fault warning ten seconds prior to a controlled engine stop taking place. An interactive light display indicates the cause of the problem thus keeping downtown to a minimum.
Starter Motor Saver
Speed Limiter Standard
Speed Limiter Dual
Idle, Rev & Speed Limiter
Engine Management (3c)
Engine Management (4c)
Engine Management (5c)
EMRS Pamphlet Page 1 EMRS Pamphlet Page 2 FAW EMRS Isuzu F Series Engine EMRS2 Isuzu N Series Engine EMRS2 UD Trucks EMRS2
Engine Management Brochure Page 1 Engine Management Brochure Page 2
Product Interface Specifications
Toyota Quantum IRS2
Branches / Contact us
Digital Hour Meter
EMRS Pamphlet Page 1
EMRS Pamphlet Page 2
Isuzu F Series Engine EMRS2
Isuzu N Series Engine EMRS2
UD Trucks EMRS2
Engine Management Brochure Page 1
Engine Management Brochure Page 2
Product Interface Specifications
Toyota Quantum IRS2
Branches / Contact us
Engine Management System – EMT:
The system monitors – Coolant Loss, high average Coolant Temperature, low Engine Oil Pressure, excessive continuous engine Idle with Audio & Visual driver/operator display and with driver/operator pre – warning prior to engine shut down. Various models available and dependent on vehicle application
Engine Management, Idle, Rev and Speed Limiter System – EMRS:
Monitoring Coolant Loss, Temperature, Low Oil Pressure with Audio & Visual display. Pre – warning shut down circuit combined with Driver control system restricting vehicle from exceeding high or low speed limits, preventing high Rev limits, Excessive Idle limiter with an option of 5 or 10 minutes. Various models available and dependent on vehicle application
Speed Limiter System – SLR:
Driver Control System restricting vehicle from exceeding preset Speed limits, device has a pre warning audio circuit. The system has been proven to reduce Fuel Consumption, Tyre and Brake wear and meets SA Road Law legal requirements. Various models available and dependent on vehicle application
Idle, Rev and Speed Limiter System – IRS:
Driver Control System restricting vehicle from exceeding preset Speed & Rev limits, Excessive Continuous Engine Idle with an option of a 5 or 10 minute cut off period. There is an audio/visual driver/operator pre-warning function. The system has been proven to reduce Fuel Consumption, Tyre and Brake wear and meets SA Road Law legal requirements. Various models available and dependent on vehicle application
Automated PTO Safety Control System – RLS:
Automatic safety system providing operator and vehicle safety and reducing potential for damage to the gearbox and PTO system. Monitors park brake, clutch, gear position and selection, PTO engagement and controls the throttle and idle screw. Has automatic engine rev up to a preset limit on confirmation of PTO engagement and is designed to operate in stationary as well as rolling application – Specifically designed around Isuzu vehicles but can be adapted to suit other vehicle marques
Dual circuit designed to monitor engine hours between services as well as cumulative (total) engine hours. Digital display flashes and pre-warns ten (10) hours before service is due and is resettable to zero hours after service is completed. Operates on both 12 and 24volt electrical systems and monitors, either engine revs or a control switch to activate the timer. Easy Digital readout each time that the ignition is switched on
Safestop East London
Office : 076 560 6370
Gonubie East London
- 2 IN 1 ELECTRONICS INCLUDE A 3 CIRCUIT ENGINE MANAGEMENT SYSTEM AND IDLE, REVS AND SPEED LIMITER
- DUAL OUTPUTS – CAN BE SET UP TO SUIT CUSTOMER APPLICATION AND VEHICLE TYPE
- LESS WIRING
- BI VOLTAGE
- PRE-WARNING BEFORE SHUTDOWN
- SPEED AND REVS INFINITELY ADJUSTABLE
- CODED CALIBRATION OF SPEED AND REVS PREVENTS TAMPERING
- CAN BE USED WITH SPEED RETARDER
- CATERS FOR STAGED SHUTDOWN
- SELF DIAGNOSTICS
- ONE FAULT INDICATION DISPLAY UNIT
- TAMPERPROOF CONTROL MODULE
- ENCAPSULATED ELECTRONICS
- FAIL SAFE OPERATION
- WATERPROOF ELECTRONICS
- VIBRATION RESISTANT
- NATIONWIDE 24 HOUR SERVICE
The dual outputs offer a variety of shutdown methods:-
1. Standard fuel solenoid shutdown (single output)
2. Standard relay shutdown (single output)
3. Staged shutdown – pneumatic throttle collapse to idle, then fuel solenoid shutdown when stationary (dual output)
4 Staged shutdown – pneumatic throttle collapse to idle, then relay shutdown when stationary (dual output)
5. Speed control – Retarder activation at set speed, fuel solenoid shutdown
6. Speed control – Retarder activation at set speed, relay shutdown
Control Module: Epoxy encapsulated Size : 100x70x20 mm
Mounting :2 slots. 90mm centres Pre-warning time : 10 seconds
Voltage 112 or 24v DC
Fuse capacity : 5 amps max.
No. of circuits 16
No. of outputs 12 Output capacity :2 amps each
Connections : Positive location and snap lock multipin plugs
Display Unit 7x LED’s
Size 1 63.5x33x6mm
Harness length : 800mm
Face Plate : Anodised aluminuim
Pressure switch : Contacts normally open
Switch point : From 40-70 kPa
Thread size 2 1/8°-27NPT
Temp switch : Contacts normally closed Switch point : From 100-125 deg.C Thread size >M14x1.5
Water level probe : Conductive Surge delay : 6 seconds Thread size 2 1/8″-27NPT
Idle, Revs & Speed Limiter
Pre-warning idle : 30 seconds
Total idle time : 5 minutes
Speed pre-warn : 5% below power loss
Revs pre-warn =: 5% below power loss
Retarder contact : 5% above power loss
Adjustablility : 40-150 kim/h 1000-4500 r/min
Adjustment : Coded calibrator Buzzer : High frequency Piezo Size : 50 mm dia.
Buzzer : High frequency Piezo
Size : 50 mm dia.
Requirements from the transport industry necessitated the introduction of a more convenient system which was quicker to install and less complicated. The EMRS Combo was designed to meet this criteria. It is a three circuit Engine Management System combined with an Idle, Revs and Speed Limiter, all in one package. Due to modern vehicle design with limited mounting opportunities to install extra equipment on the dashboard, a special single compact display unit with 7 LED’s compliments the product.
With absolute safety in mind and also a first in the South African transport industry, the product introduces the option of a staged shutdown system.
Cab equipment consists of a single epoxy encapsulated control module, dedicated wiring harnesses, dashboard display unit, starter interrupt relay and a high frequency Piezo buzzer.
Standard engine equipment includes switches for low oil pressure, high water temperature and low coolant level. If required a speed transducer is installed. Engine revolutions are taken from the alternator or an OE flywheel sensor.
Shutdown equipment is dependent upon the type of application. This can vary from a fuel flow solenoid, an
air solenoid with a pneumatic ram, an electro magnetic retarder or a relay.
Engine Management-Standard Shutdown:
If any circuit is tripped due to a pre-set parameter being exceeded, switch failure or loss of continuity of a signal wire, the driver is alerted to the impending shutdown of the engine by the appropriate circuit light and buzzer. This 10 second pre-warning allows the driver to take necessary action by moving the vehicle to the side of the road before power loss occurs.
The priority circuit diagnostic system allows the driver to identify which circuit caused the shutdown even if several circuits have failed.
Engine Management-Staged Shutdown:
The Safestop system behaves in exactly the same way except that after the 10 second pre-warning the engine returns to idle thus maintaining all essential services such as brakes and power steering. Only after the vehicle has come to a complete stop does the engine shut down. Idle, Revs and Speed Limiter:
Speed Limiter-Standard Application:
A warning is sounded at 5% before the engine loses power. If the driver continues to increase speed beyond the pre-set limit, the engine will lose power, forcing the vehicle to decelerate. At just below the speed where the buzzer sounded, engine power is re-instated. Example:
Engine speed, or revs, behave in the same way. If the revs are set to say, 30001/min, then the warning sounds at 2850 r/min and power loss occurs at 3000 r/min. Power is re-instated again at 2850 r/min.
Do not set the rev switch point below the manufacture’s injector pump governed speed as this could have a detrimental effect on correct gear selection and lead to labouring of the engine.
This governor is a function of speed. If the vehicle is moving, the idle timer is disabled. If the vehicle is stationary, the 5 minute timer is enabled. Thus, after 5 minutes of stationary time, the engine will shut down. It does not accumulate time. If the vehicle is stationary for say, 3 minutes, as soon as movement is detected, all accrued time is cancelled and the timer will again start from zero as soon as the vehicle stops moving. After 4.5 minutes of stationary time the buzzer sounds intermittently to warn the driver that the engine will shut down within 30 seconds. Should the engine shut down, an immediate restart is possible.
A facility exists where vehicles which operate a PTO while stationary can automatically by-pass the Idle Limiter function. When the PTO is disengaged, the Idle timer becomes active