Datum Power Take Off (PTO) Monitoring System
18Pages

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE & POWER MONITORING SYSTEM HANDBOOK AND INSTALLATION GUIDE

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 2 System items supplied 3 Safety - Ensure the PTO shaft is guarded 5 Input electrical connection 6 Output electrical RS485 connection 7 Output electrical RS232 connection 8 Graphic user interface 10 Datum universal interface USB logging guide 11 Logged file example 11 Unix time conversion 11 Mechanical interface specifications 14 Serviceable items: bearings 16

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 3 What is it designed to do? Datum Electronics Series 420 PTO (Power Take Off) Shaft Torque and Power Monitoring System will monitor and log the torque, shaft speed and transmitted power accurately when testing new systems driven from all standard PTO Shafts. The tractor’s PTO or stub shaft transfers power from the tractor to the PTO-driven machine or implement. Power transfer is accomplished by connecting a drive shaft from the machinery to the tractor’s PTO stub shaft. Common examples include elevators,...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 4 Connection example (B) PTO Transducer to PC via the Datum Universal Interface. Before installing your PTO Transducer into the rig or vehicle we would advise you to familiarise yourself with its connections and operation by performing a bench test. By connecting the Transducer directly to a Datum Universal Interface (example A below), or to a PC via the Datum Universal Interface (example B opposite), you will be able to rotate the shaft to generate an output signal of RPM. By applying a small torque by hand...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 5 DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 5 MECHANICAL INSTALLATION SAFETY - ENSURE THE PTO SHAFT IS GUARDED The body of the PTO transducer is suspended on bearings on the rotating shaft. An anti-rotation tether point is provided on the top of the body, adjacent to the cable connection, to prevent the transducer body from rotating with the shaft. The bearings in the transducer are intended for supporting the body of the transducer only and should not be used to...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 6 INPUT ELECTRICAL CONNECTION (Universal Interface to PTO) CABLE AND SOCKET CONNECTORS WIRING GUIDE The supplied cable length for the PTO Transducer is 4 metres, longer cables up to 10 meters can be supplied on request. This cable is terminated with a standard 9-way D connector to interface to any of the Datum Electronics Signal Interfaces or Indicators. The connections within this cable are detailed below should you wish to connect the 420 series PTO Transducer directly into your own instrumentation and...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 7 OUTPUT ELECTRICAL RS485 CONNECTION (Universal Interface to Laptop PC) CABLE AND SOCKET CONNECTORS WIRING GUIDE The Datum Universal Interface can also be connect to a Laptop or PC by USB or 9 way RS485 or RS232 serial D connector. The connections for a RS485 serial D connector are detailed below should you wish to assemble your own cable to connect the 420 series PTO Transducer. Diagram No. 7 Universal Interface to Laptop PC signal cable wiring guide for RS485 arrangement To Universal Interface

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 8 The connections for a RS232 serial D connector are detailed below should you wish to assemble your own cable to connect the 420 series PTO Transducer. Diagram No. 10 Universal Interface to Laptop PC signal cable wiring guide for RS232 arrangement To Universal Interface

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK SYSTEM CONNECTIONS Series 420 PTO Transducer connections guide Interface Main Power Input USB connection to PC with Datum Electronics TorqueLog Software Datum Electronics PTO Transducer Datum Electronics Universal Interface Standard Cable 4m (Special order up to 10m) 15V-24V Power IN (2 Way) Alternative Power input For information on connecting up rechargeable battery block supplied as an optional extra please contact web@datum-electronics.co.uk Universal Interface connections guide When supplied with the...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 10 Datum Electronic’s Universal Interface provides options for different operating environments. Datum Electronics can provide the universal interface package for either control enclosure application or heavy industrial applications. The universal interface will connect directly to the PTO Torque Transducer. It supplies 12Vdc to power the Transducer and converts the torque and RPM signal into the outputs you require. The outputs that can be configured are: 4 analogue outputs as either 4-20mA...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK 11 The Datum Universal Interface Module can log the basic test data direct onto a USB memory stick as a .CSV File -see example below. The DUI can use USB memory sticks up to 64GB memory capacity. To log test data to a USB stick please ensure that the transducer and DUI are powered and working - i.e. you can see data shown on the DUI screen. Please note if you insert USB Stick into the DUI before this then the system will not log. Once this is confirmed and you are ready to log test data please insert the USB...

DATUM ELECTRONICS PTO 420 SERIES SHAFT TORQUE AND POWER MONITORING SYSTEM HANDBOOK Within this data we can often see valuable characteristics at higher sample rates that show Torsional information that will indicate system wear, vibration and changes in efficiency. The raw data can also be viewed in a spreadsheet as columns.