The Optio G is an MSHA-approved multi-gas monitor engineered for operation in classified underground mines. Designed for atmospheric gas detection, the Optio G can engage local alarms to alert personnel to hazardous gases and environmental conditions, while seamlessly communicating real-time status to front-end SCADA software such as Conspec’s Senturion S950 command center (sold separately).
Designed for flexibility, the Optio G supports up to six gas sensors. Common configurations include carbon monoxide (CO), methane (CH4), oxygen (O2), and nitrogen dioxide (NO2), along with optional atmospheric sensors for environmental monitoring such as humidity, air velocity, and temperature. This broad coverage and versatility helps reduce installation costs and maximize operational efficiency.
The Optio G goes beyond detection with powerful integration features, including six relays controlled by customizable alarm combinations, two analog outputs (4–20 mA / 0–2 V), and Modbus RTU over wireless networking for seamless connectivity to control systems. A graphical menu setup simplifies configuration, while its low-power design ensures efficient, long-term operation in remote or demanding conditions.
| MSHA Approved | Meets the highest safety standards required for use in underground mines. |
| Reliable Operation | Rugged housing and advanced sensor technology ensure consistent and accurate performance even in extreme conditions. |
| Multi-Gas Detection | Support for up to 6 sensors allows one device to protect a wider area and eliminate the need for additional gas detectors. |
| Wide Capabilities | Compatible with dozens of different gas sensors and atmospheric sensors including humidity, wet bulb temperature, and air velocity. |
| Simple Sensor Replacement | Modular, plug-and-play sensor design eliminates the need for calibration and reduces time spent on maintenance. |
| Easy Integration | Industry standard communication protocol make it simple to integrate into existing facilities and scale with operational growth. |
| CO | NO2 | O2 | CH4 | |
|---|---|---|---|---|
| Range | 0–100 ppm | 0–20 ppm | 0–25% vol | 0–100% LEL |
| Life Expectancy | > 4 years | > 1 year | > 2 years | 2 years |
| Response Time | T90 < 30 sec | T90 < 50 sec | T90 < 10 sec | T90 < 20 sec |
| Other Sensor Types | Hydrogen (H), Hydrogen Sulfide (H2S), Carbon Dioxide (CO2), Chlorine (Cl2), Ammonia (NH3), Ozone (O3), Nitric Oxide (NO), Propane (C3H8), Hydrogen Cyanide (HCN), Hydrogen Chloride (HCl), Sulfur Dioxide (SO2), VOCs (Volatile Organic Compounds) | |||
| Additional gases / ranges available. Contact sales for more information. | ||||
| Electrical | |
|---|---|
| Operating Voltage | 10–32 VDC |
| Power Consumption | Minimum 3 mA @ 24 VDC; Maximum 33 mA @ 24 VDC |
| Mechanical | |
|---|---|
| MGM2 Enclosure | 9 × 7 × 4.5 in (229 × 178 × 114 mm); 3.33 lb (1.51 kg) |
| MGM4 Enclosure | 8.75 × 11 × 6.5 in (222 × 280 × 165 mm); 5.20 lb (2.36 kg) |
| MGM6 Enclosure | 10.75 × 12.75 × 7.5 in (273 × 324 × 190 mm); 7.10 lb (3.22 kg) |
| Environmental | |
|---|---|
| Operating Temperature | -4°F to +122°F (-20°C to +50°C) |
| Operating Humidity | 10–95% RH non-condensing |
| Communication | |
|---|---|
| Available Protocols | Conspec Trunk, RS485, Conspec Wireless 900 MHz (pending); Com Distance to 20,000 ft (6 km) |
| I/O Capabilities | |
|---|---|
| Supported I/O | Horn / Strobe configurable control |
| Alarm | |
|---|---|
| Trouble Alarms | Sensor failure (high / low), communication error, or internal fault |
| Relay Logic | AND/OR logic based on single or multiple sensor inputs |
| Custom Alarms | 4 levels per sensor with hysteresis and hold-to-alarm timing |
| MSHA | Part 18 |
| Commonwealth of Pennsylvania | Approval No. BOTE 32-19 |
| 911118-CPM | Infrared Remote Control |
| Optio AVM | Air Velocity Monitor |
| Mini Weather Station | Various Atmospheric Sensors |
| T1481-M | Horn / Strobe |
| P1879-XX-YYYY | Calibration Kit |
| ROS-S13333-B | Red Outstation |
| REX-T163000 | Red Extender |
| 911150 | Blue Barrier |
| P2810-C | Blue Barrier Interface |
Each Optio G multi gas detector can accommodate up to 6 sensors simultaneously. This eliminates the need to purchase and install multiple single-gas detectors, providing a cost-effective all-in-one gas detection solution for general purpose areas.
The system includes 4 dry relay contacts and Modbus RTU over RS-485 communications through the gateway, allowing integration with existing alarm systems or process control equipment. This connectivity enables automated responses to gas detection events.
Yes, the Optio G is designed for use in classified areas and general purpose environments. The detector features an easy-to-use interface with infrared remote control for safe operation. The wireless design minimizes installation requirements while maintaining reliable performance in industrial safety applications.
The calibration of the Optio G uses an intuitive 2-step process that includes applying zero gas and span gas (50% of the target gas). In mining applications, this procedure can be performed underground and does not require the gas detector to be brought to the surface. Calibration intervals will depend on the amount / frequency of a given target gas that is present within the environment.
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