The Optio B is a multi-gas monitor designed to detect the early signs of thermal runaway in battery energy storage systems. Once alarm thresholds are reached, the monitor can engage connected mitigation and notification systems via onboard relays (including fire suppression systems, warning signals) or communicate with a facility’s BAS / BMS via Modbus.
The Optio B can support up to 6 sensors to continuously monitor for carbon dioxide (CO2), hydrogen (H2), electrolyte vapors (VOCs), carbon monoxide (CO), and methane (CH4) vented by Li-ion batteries before visible smoke or flame appear.
The Optio B is a critical first line of defense in any facility’s battery safety and fire prevention strategy.
| Long Sensor Life | Designed for extended operational longevity, reducing replacement frequency and lowering maintenance costs. |
| Self-Diagnostic Function | Continuously monitors internal health to ensure reliable system performance and early fault detection. |
| Automatic Reset | Recovers seamlessly after power loss, minimizing manual intervention. |
| Onboard Relays | Provides built-in relays for direct control of external devices, alarms, or ventilation functions. |
| Onboard 80 dB Alarm | Delivers a loud, clear audible warning to alert personnel to hazardous conditions. |
| Flexible Sensor Configuration | Supports a combination of internal and remote/external sensors. |
| Â | Tech. | Range | Life | Resp. |
|---|---|---|---|---|
| Carbon Dioxide (CO2) | NDIR | 0–10,000 ppm | > 15 years | T90 < 30 sec |
| Hydrogen (H2) | EC | 0–1,000 ppm | > 2 years | T90 < 40 sec |
| Methane (CH4) | NDIR | 0–100% LEL | > 5 years | T90 < 30 sec |
| Carbon Monoxide (CO) | EC | 0–500 ppm | 7 years | T90 < 30 sec |
| Electrolyte Vapors (VOC) | Â | Â | 10 years | T90 < 2 sec |
| Electrical | |
|---|---|
| Operating Voltage | 6–30 VDC |
| Power Consumption | Minimum 2.45 mA @ 24 VDC; Maximum 93 mA @ 24 VDC |
| Mechanical | |
|---|---|
| Dimensions | 8.2 × 6.2 × 3.9 in (208 × 157 × 99 mm) |
| Weight | 3 lb (1.4 kg) |
| Environmental | |
|---|---|
| Operating Temperature | -4°F to +122°F (-20°C to +50°C) |
| Operating Humidity | 15-90% RH non-condensing |
| Communication Interfaces | |
|---|---|
| Interface | Modbus RTU (RS485), Modbus TCP |
| I/O Capabilities | |
|---|---|
| Relay Outputs | 6 × SPDT 2 A @ 30 VDC |
| Multi-Function Ports | 6 × DI/AI (0–5 V) |
| Analog Outputs | 2 × 4–20 mA |
| Alarms | |
|---|---|
| Onboard Alarm | 83 dB @ 3 ft (0.9 m) |
| 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 with hysteresis and hold-to-alarm timing |
| UL 61010-1 US/CAN via Nemko |
| Accessories | |
|---|---|
| T1481-M | Horn / Strobe |
| P1879-XX-YYYY | Calibration Kits |
| NDI0243-61 | Replacement Sensor CO2 |
| PnP0613-46 | Replacement Sensor H22 |
| SENS-00002 | Replacement Sensor VOC |
| PnP0352-32 | Replacement Sensor CO |
| NDI0503-30 | Replacement Sensor CH4 |
| 900744-ASBY-24 | Power Supply |
| Industrial IR Remote | IR Remote |
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