RKI Instruments M2 Rig Monitor - Manual (Page 13)

M2 Rig Monitor Operator’s Manual 8
Relay Terminal Strips
The right column of terminal strips consists of, from top to bottom, the fail, alarm 1, and
alarm 2 relay terminal strips. They are three-position plug-in style terminal strips. The
relay terminal strips are used to connect devices such as lights and horns that are
controlled by the relay contacts. The relay contacts are rated at 115 VAC, 5 amps. The relay
contacts may also be used to control higher rated relays. The Rig Monitor uses the Alarm 1
relay to control the factory installed strobe/horn. Only the Fail and Alarm 2 relays are
available for customer use.
Termination Jumper
A two pin header with a termination jumper installed is located below the Modbus
terminal strip. The jumper has no function unless the Rig Monitor is wired into a Modbus
installation. See “Chapter 7: RS-485 Modbus Output” on page 34 for a description of using
the Rig Monitor in a Modbus system.
Control PCB
The LCD display and control switches are located on the control PCB. It is installed on top
of the terminal PCB by lining up its three spacing standoffs with the banana jacks in the
terminal PCB mounting standoffs and pushing it onto the banana jacks. The jacks retain
the control PCB.
The power converter is installed on the back of the control PCB with standoffs.
LCD Display
The LCD display is located at the top of the control PCB. It indicates the current gas
reading and displays messages and parameters in the Rig Monitor’s programs.
Control Buttons
The Rig Monitor includes three push button switches that allow you to enter the Rig
Monitor’s operating modes, navigate through the modes, update settings, and save
changes to the settings. The push button switches are located along the bottom edge of the
control PCB (see Figure 4). The UP/YES button is on the left, the DOWN/NO button is in
the middle, and the ENTER button is on the right.
Just above each push button switch is a magnetic switch with the same function as the
push button switch below it. The magnetic switches are for use in non-intrusive
Table 2: M2 Rig Monitor Control Button Functions
Switch Function
UP (YES) • Saves settings
• Changes the displayed setting
• Enters the Calibration Program
• Enters Configuration Mode (press with ENTER button)
DOWN (NO) • Cancels setting changes
• Changes the displayed setting
• Enters Modbus Mode (press with ENTER button)
• Displays the Information Screen
ENTER • Initiates operations
• Enters Configuration Mode (press with UP/YES button)
• Enters Modbus Mode (press with DOWN/NO button)
• Functions as an alarm reset switch