WOODWARD 505XT 8200-1312 | Digital Turbine Governor Marine/ATEX In Stock

Description

Key Technical Specifications

Product Introduction

If you’re running a steam turbine on an offshore platform or in a petrochemical plant, a standard controller just won’t cut the mustard. That’s exactly where the Woodward 505XT 8200-1312 earns its keep. Unlike the standard 505 models, the “XT” variant is built specifically to handle the complex dynamics of extraction and condensing turbines, giving you tight control over both speed and process steam pressure simultaneously.The 8200-1312 variant is the heavy hitter of the lineup. It runs on a robust 18–36 Vdc power supply and carries Marine and ATEX certifications, meaning it is designed to survive and operate safely in explosive atmospheres and harsh marine environments where standard electronics would fail. It features a fully programmable, menu-driven interface that lets you fine-tune PID loops for acceleration, speed droop, and load limiting right from the front panel. Honestly, it’s a bit of a beast to commission if you’ve never touched a 505XT before, but once it’s dialed in, it keeps that turbine running rock-steady.

Quality SOP & Tech Pitfalls (The Reality Check)

The Lab Report (SOP):
We don’t just pull these off the shelf and ship them. Here is our pre-shipment protocol:

1. Visual & Label Check: We verify the part number is exactly 8200-1312 and check for any physical damage to the front panel HMI or rear terminal blocks.
2. Power-Up Test: We apply a stable 24V DC supply to ensure the unit boots correctly and the graphical display initializes without dead pixels.
3. I/O Verification: We run a quick loop check on the analog inputs to ensure the 4-20mA scaling is reading correctly.
4. Packaging: It gets sealed in an anti-static bag and packed in a rigid box with heavy foam to protect the screen during transit.

The Engineer’s Warning (Pitfalls):

• Don’t Confuse it with the Standard 505: The 505XT is not the same as the standard Woodward 505. If your application involves extraction steam (controlling two different steam pressures), the standard 505 will fail you. You need the XT version.
• Power Supply Matching: The 8200-1312 is strictly Low Voltage DC (18-36V). Do not try to wire this into a standard 110/220V AC cabinet without the proper step-down converter. I’ve seen technicians fry these instantly by assuming it takes AC power like the 8200-1311.
• ATEX Grounding: Since this is an ATEX-rated unit for hazardous locations, your cabinet grounding must be flawless. Poor grounding will introduce noise into your 4-20mA signals, causing the turbine to hunt or surge unexpectedly.

Installation & Configuration Guide

Time estimate: 45 Minutes (plus tuning time)

1. Pre-Installation (Safety First):
   • ⚠️ DANGER: Ensure the turbine is in a complete shutdown state and the ESD (Emergency Shutdown) system is engaged. Lock out/Tag out all power to the cabinet.
2. Removal:
   • Take clear photos of the existing wiring, especially the analog inputs for speed pickups and the 4-20mA outputs to the servo valves.
   • Carefully label every wire. The 505XT has a lot of configurable I/O, and mixing up a speed input with a pressure input will cause a startup failure.
3. Installation:
   • Mount the 8200-1312 securely in the panel cutout.
   • Check Your Voltage: Before connecting the main power harness, use a multimeter to verify your supply is a clean 18-36 Vdc.
   • Connect the speed sensing inputs (magnetic pickups or proximity probes) using shielded cables to prevent electrical noise interference.
4. Power-On & Configuration:
   • Power up the unit and verify the Woodward logo appears on the HMI.
   • Enter the “Configure” mode. You will need to re-enter your turbine parameters (rated speed, number of gear teeth on the flywheel, actuator type).
   • Crucial Step: If replacing an old unit, ensure your PID gains (Proportional, Integral, Derivative) match the previous settings, or the turbine may become unstable during acceleration.

Compatible Replacement Models

The 505 series has several part numbers that look similar but have different power requirements and certifications.

• ✅ Drop-in Replacement:
  • Woodward 9907-167: The 8200-1312 is the direct, modern upgrade for this legacy part number. It is a 100% functional replacement.
• ⚠️ Hardware Mod Required (Check Power Supply):
  • 8200-1302: Also a Marine/ATEX LVDC model, but verify the exact voltage range and firmware revision. It is very similar but meant for slightly different legacy upgrades (replaces 9907-162/164).
  • 8200-1300: This is also LVDC (18-32V) but lacks the specific Marine/ATEX compliance of the -1312. Only use if hazardous location certification is not required.
• ❌ Not Compatible (Different Voltage):
  • 8200-1311: This 505XT model runs on High Voltage AC/DC (88–264 Vac). Do not buy this if your cabinet is wired for 24V DC.
  • Standard Woodward 505 (Non-XT): Lacks the extraction/condensing control logic required for XT applications.

Frequently Asked Questions (FAQ)

Q: What is the main difference between the 505XT and the regular Woodward 505?
A: The “XT” stands for Extraction. If you are controlling a turbine that bleeds off steam for a process (extraction) or has multiple steam inlets, you must use the 505XT. The regular 505 can only handle simple speed/load control.Q: My old controller is a 9907-167. Will the 8200-1312 fit and work?
A: Yes. The 8200-1312 is the designated replacement for the 9907-167. It retains the Marine/ATEX compliance and Low Voltage DC power requirements of your old unit.Q: Can I use this in a hazardous area?
A: Yes, the 8200-1312 is specifically built with Marine and ATEX compliance for use in hazardous locations (like Class I, Division 2 environments), provided it is installed in a properly rated enclosure.Q: Does this unit come with the programming software?
A: The 505XT is primarily configured via its front panel keypad and display. However, for advanced monitoring and data logging, it supports connection to Woodward’s service tools via Ethernet or serial ports.Q: What voltage does this run on?
A: The 8200-1312 requires a Low Voltage DC power supply, specifically in the range of 18 to 36 Vdc (nominally 24V DC). Do not connect AC power to it.