Emergency Stop; High Voltage Side; Low Voltage Side; Phase Extension (T-Rex) - Raytech TR-MARK III Instruction Manual

5.2.3 Emergency Stop

Press to Stop. The measurement will cease and halt Voltage to the test leads immediately.
Turn clockwise to release. The device will remain in a safe state.

5.2.4 High Voltage Side

The connection for the High side lead (H) to the test object.

5.2.5 Low Voltage Side

The connection for the Low side lead (x) to the test object.

5.2.6 3 Phase Extension (T-REX)

The TR-MARK III provides this separate plug to connect and control the 3 Phase Voltage
Extension T-REX.

5.2.7 External

This port is used for an external connection to a tap changer dry contact. This port can also
be connected to the optional external control switch TRO-203 (Part No. 30047) for a remote
start of the test sequence. Please see chapter '10.1 Hardware' for details

5.2.8 Interface

RS232 and USB 1.1. Please see chapter '10.1 Hardware' for Details.

5.2.9 Safety Indicator

Green Light on: No voltage applied to test leads. System in safe standby mode.
Red light on: Indicates there is test voltage on test leads. System is testing.

5.2.10 Display and Touch Panel

The TR-MARK III can be easily manipulated and fully controlled by the touch screen panel. If
preferred, an external mouse can be connected to the USB Port to control the system.

5.2.11 Thermal Printer

Allows you to quickly get your results on paper by using the built-in thermal printer.
90100.1.02 Instruction Manual TR-MARK III Page 16 of 70