The Mobile Perimeter System IV offers true stand-alone gas monitoring capability. The MPS IV is solar powered and has a battery backup to allow for about one week of dark operation. The system has an integral alarm controller and built-in relays to allow operation of the standard alarm strobe and optional external horn.

The MPS IV comes standard with a 30-watt solar panel and 55Ah battery allowing for mobile deployment. Additional solar panel and battery configurations as well as direct powered units can be customized to your specific application needs.

The MPS IV has eight programmable 5 amp SPDT relays standard and one common horn driver standard. Each programmable relay allows for voting based on the alarm state of each of the four channels.

The MPS IV allows for up to four tethered 4-20mA transmitter inputs or four wireless OLCT 200 transmitter inputs. This allows the MPS to act as a local stand-alone monitor for four different gases, or the MPS IV can act as a local alarm station with remote transmitters reporting back via 4-20mA or wirelessly.

The Mobile Perimeter System IV offers both 900Mhz and 2.4Ghz wireless communication capability. The MPS IV can transmit its four channels to a wireless ModBus master device or it can be configured to receive wireless data from an equipped OLCT 200 transmitter. Wireless communications utilize 256-bit encryption and Division 2 antenna.

The MPS IV offers several different mounting options:

• Tripod Mount - Mounts controller, solar panel, battery pack, and even transmitters to one mobile unit.
• Pole Mount - Option provides mounting brackets for installation to existing pole at site.
• Wall Mount - Option provides mounting brackets for wall installation.
• Magnetic Mount - Option provide magnetic mounting hardware for alarm controller.

The MPS IV is configured with four Division 2 Quick Connect fittings installed on the controller. Compatible Division 2 Quick Connect cables are available in 3, 8, 15, and 30 meter lengths. Division 2 Quick Connect 3/4" transmitter fittings are also available and provide for a complete and easy to deploy system.

The Mobile Perimeter System IV is configured with a red strobe light and built-in 100db piezo siren. Additional horn options are available.

The Mobile Perimeter System IV has a backlit graphical LCD display. Gas readings can be displayed on three different screens:

• Split Screen - Displays the gas reading, gas type, and alarm state of up to four readings simultaneously.
• Bar Graph - Displays a bar graph depiction of the gas reading and the alarm levels for up to four channels. The numerical gas value and gas type are also displayed for each channel.
• Trend Chart - Displays the current gas value and gas type as well as a trend graph for the last 30 minutes.

All configuration data is stored in non-volatile memory to protect against power interruptions.

The MPS IV also records up to 65 of the last events (Alarms, Alarm Acknowledgements, Calibrations, and Power On) and provides a time and date stamp.

A four-digit Pass Code may be entered to restrict editing controller configuration menus. All menus can still be viewed while in Security Mode.

A user-editable field allows a custom message to be displayed when in security mode. This may be a contact name or number for an authorized individual.

The MPS IV can display the last 30 minutes of readings for each of the four channels.

The Mobile Perimeter System IV can be configured with three enclosure options:

• Non-Metallic Wall Mount - NEMA 4X/IP66 rated enclosure. Suitable for Div 2 applications.
• Painted Steel Wall Mount - NEMA 4X/IP66 rated enclosure. Suitable for Div 2 applications.
• Stainless Steel Wall Mount - NEMA 4X/IP66 316 stainless steel enclosure. Suitable for Div 2 corrosive environments.