Product Overview
When flame detection reliability is critical, the Yokogawa 95DSS3-1 InSight II Scanner delivers precision monitoring. This Industrial Automation Module from Yokogawa ensures continuous operation in demanding conditions. Designed for burner management and combustion safety, the scanner combines rugged construction with advanced optical sensing.
Technical Specifications
| Specification |
Value |
| Input Power |
24 Vdc, +10%, –15%, 0.35 A, 8.5 VA |
| Contact Rating |
100 mA @ 30 Vdc; 100 mA @ 50 Vac (-1 versions) |
| Relay Outputs |
2 flame relays (SPDT N.O./N.C.) and 1 fault relay (SPST N.O.) |
| Environmental Rating |
NEMA Type 4X / IP66; Class I Div 2 Groups A,B,C,D; Class II Div 2 Groups F,G |
| Operating Temperature |
–40°F to +150°F (–40°C to +65°C) ambient; internal up to 176°F (80°C) |
| Storage Temperature |
–40°F to +185°F (–40°C to +85°C) |
| Humidity |
0% to 95% RH, non‑condensing |
| Housing |
Cast aluminum with gray polyester powder coat |
| Mounting |
Requires threaded mounting flange (ordered separately) |
| Dimensions (Weight) |
5.9 lbs (2.69 kg) |
| Connections |
8‑pin and 12‑pin screw‑type quick‑disconnect |
The Yokogawa 95DSS3-1 includes two quick‑disconnect interfaces: a 12‑pin male on the right side (for 59‑547‑xx cable) and an 8‑pin male on the left side (for 59‑546‑xx cable).
Industry Applications
This scanner is ideal for burner management systems, industrial boilers, furnaces, and process heaters. The NEMA 4X / IP66 enclosure protects against water ingress and corrosive environments, while the wide temperature range allows reliable operation in both cold climates and high‑heat zones. The dual flame relays provide redundant safety signaling, meeting stringent NFPA and industrial safety requirements.
Installation & Setup Guidance
Mount the Yokogawa 95DSS3-1 using a separately ordered threaded mounting flange. For fiber‑optic mounting, refer to bulletin CU‑117. Connect the 8‑pin and 12‑pin quick‑disconnect cables as per the wiring diagram. Fireye recommends using their power supply model 60‑2685 to ensure proper hold‑time (20 msec minimum) and clean 24 Vdc input. Secure all connections with the screw‑type terminals to maintain NEMA 4X integrity.
Maintenance & Reliability
The cast aluminum housing with gray polyester powder coat finish resists corrosion and impacts, extending service life. The non‑condensing humidity tolerance (0‑95% RH) prevents internal moisture damage. With no moving parts, the solid‑state optical sensor requires minimal periodic cleaning of the lens window. Regularly inspect cables and connectors for wear. This rugged design translates to lower total cost of ownership and reduced unplanned downtime.
Selection Guide & Purchasing Advice
Before ordering the 95DSS3-1, verify the mounting flange compatibility (sold separately) and ensure your system supports the specified power and relay voltages. For a reliable supply of genuine Yokogawa parts, PLC Source PRO (available at ubest101.myshopify.com) stocks this module and the recommended accessories. Confirm the cable part numbers (59‑547‑xx and 59‑546‑xx) are compatible with your installation.