GE IS215WETAH1BB IS200WETAH1AGC Environmental monitoring module
GE IS215WETAH1BB / IS200WETAH1AGC Technical Specification
(Turbine Enclosure Water Detection Module)
Specification
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Attribute
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Detail
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|---|---|
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Part Number
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IS215WETAH1BB (Mark VIe) / IS200WETAH1AGC (Mark VI)
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Functional Code
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WETAH
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Manufacturer
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General Electric (GE)
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Platform
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Mark VIe / Mark VI Speedtronic™ Turbine Control
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Country of Origin
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USA
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Function
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Multi-Zone Water Intrusion Detection
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Description
The GE IS215WETAH1BB (Mark VIe) and IS200WETAH1AGC (Mark VI) are environmental monitoring modules designed to detect water accumulation in turbine control enclosures. Utilizing conductive probes, they monitor up to 8 independent zones (e.g., cabinet sumps, conduit entries) with programmable latch/reset logic. Triggers critical alarms ( fault) to prevent electrical shorts in control systems.
Features
- Sensing Technology:
- 8× isolated probe inputs (0–30V DC wetting voltage)
- Configurable resistance threshold (5–50 kΩ default)
- Probe short/open circuit diagnostics
- Control Logic:
- Programmable latching/non-latching alarms
- Remote reset via Ethernet/IP (IS215) or VME (IS200)
- Zone-specific delay timers (0–300 sec)
- Robust Design:
- ±15kV ESD protection on probe inputs
- -40°C to +85°C operational range
| Model Comparison | IS215WETAH1BB (Mark VIe) | IS200WETAH1AGC (Mark VI) |
|—————————-|——————————|——————————|
| Communication | Ethernet/IP to | VME to |
| Power Supply | 24V DC (redundant) | 125V DC (non-redundant) |
| Probe Voltage | 15V DC regulated | 24V DC unregulated |
Electrical Specifications
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Parameter
|
Specification
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|---|---|
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Input Sensitivity
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5 kΩ (alarm) / >500 kΩ (normal)
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Probe Current
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1 mA max (per zone)
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Contact Rating
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2A @ 30V DC (internal relay)
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Isolation
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1500V AC (probe-to-backplane)
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Response Time
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<100 ms (fault detection)
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Product Properties
|
Property
|
Specification
|
|---|---|
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Enclosure Rating
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IP20 (module) / IP68 (probes)
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Connectors
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10-pin captive screw (probes) / RJ45 (IS215)
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LED Indicators
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Power (green), Fault (red), per-zone status (yellow)
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Compliance
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UL 508, IEC 61010-1, ATEX Zone 22
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Dimensions
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120 × 30 × 100 mm (4.7 × 1.2 × 3.9 in)
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Weight
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0.3 kg (0.66 lbs)
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Performance Metrics
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Metric
|
Value
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|---|---|
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False Alarm Immunity
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Immune to condensation (<2 kΩ transient)
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Fault Reporting Delay
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Programmable 0–60 sec (debounce)
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MTBF
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>250,000 hours (SIL 2)
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Calibration Stability
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±1% threshold drift over 5 years
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Key Applications
- Turbine Control Protection:
- Detection of water in console pedestals
- exciter cabinet flood monitoring
- Substation Safety:
- Battery room floor leakage
- Cable trench flooding (switchgear buildings)
- Industrial Environments:
- Data center raised floor moisture
- Pump seal failure detection
⚠️ Critical Integration Notes:
- Probe Selection: Use GE Probe Kit WA-001 (316SS tips, 20m cable) – generic probes cause calibration drift.
- Grounding: Isolate probe cables from enclosure ground – bond ONLY at module terminal (prevents ground loops).
- False Trigger Prevention:
- Set threshold >10 kΩ if deionized water is present
- Avoid routing probes near 480V AC conductors (>6″ clearance)
- IS215 (Mark VIe) Specific:
- Requires ToolboxST v7.05+ for configuration
- Assign ETH_IP address in controller before commissioning
- IS200 (Mark VI) Specific:
- Install in Slot J14/J15 of rack – other slots lack WETAH firmware
- Enable DCSWET=YES in configuration
- Maintenance:
- Clean probes annually with isopropyl alcohol (salt deposits lower resistance)
- Validate calibration with 10 kΩ resistor across probe terminals
- Safety: Latch alarms until MANUAL reset – automatic reset risks undetected flooding.
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