Bury Rail Safety Engineers Turn 'Pink' for Breast Cancer Day Bury based rail safety engineering company Rowe Hankins Limited raised over £300 when it staged a 'Wear It Pink' day for the Breast [...]
Read More >>
 Rowe Hankins Attending Railtex 2013 Exhibition Rowe Hankins is pleased to announce that it will be hosting stand number A21 at the upcoming Railtex exhibition. The event will take [...]
Read More >>
 Meet the Rowe Hankins Team at the Following Exhibitions   We are pleased to announce that we will be hosting stands at a number of exhibitions in 2013.   We would be very happy to meet [...]
Read More >>
Receive latest updates from Rowe Hankins

NIC - Non-Intrusive Current Monitoring Units

The Non-intrusive Current Monitoring Unit (NIC) can be used in many rail applications, the main ones being:

     - Non-intrusive monitoring of DC current
     - Remote plant monitoring
     - Railway equipment
     - Event monitoring

Following customer feedback RHL have introduced a new layout for the NIC, reducing the number of parts by redevelopment of the PCB.

The cable carrying the current to be monitored is passed through the hole in the side of the case.

Internally it passes through a current transducer which outputs a voltage to the rectifier.

Following full wave rectification the signal passes through a low pass filter, the output of which connects to the 4 to 20mA current output stage.

The full wave rectification only applies to units for bipolar primary input current.

A comparator detects a desired trip level and the output is available as a relay contact output.

An internal power supply is used to convert the 24V DC supply input to power the transducer and signal conditioning circuits.

NIC - Technical Details

Technical Details: - Non-contact measurement of DC currents up to ±600mA - 4 to 20mA current output - Voltage output (nominally 0 to +10V) - Current trip with relay output - LED trip indic...  
View more > >