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Serveron TM1 On-Line Dissolved Gas Monitor
Brand: Qualitrol CompanyThe Serveron® Model TM1 offers a breakthrough price/ performance point in on-line DGA.
For the first time, the benefits of on-line condition monitoring can be realized across the distribution transformer fleet.
The Serveron® TM1 continuously monitors and reports hydrogen PPM Levels and can be programmed to alarm based on PPM Levels and/or Rate of Change (ROC), warning operators of potentially disruptive transformer faults and pending failures.
Features- Responds only to Hydrogen: no cross interference or composite measurements.
- Rapid step change response facilitated by active oil circulation over the sensor itself.
- Single Valve mount
- Low Cost of Ownership:
- No Membrane – directly immersed sensor
- No Sensor replacement or recalibration required for life of monitor
- No Consumables or routine service required
Specifications
Brand
Accuracy
- Hydrogen (H₂): ± 15 % or ± 20 ppm
- Moisture-in-Oil: ± 5 %
- Oil Temperature: ± 2° C (Typically)
Alarm
- 2 Alarm Relay: Two (2) Alarm Relays for Power & Service Status
- 3 DGA Relays: Three (3) Programmable Alarm Relays for H₂ Level (ppm), H₂ Rate of Change (ROC) (ppm/Day), & Optional Moisture
- Relay Contact Rating: Max.
Analog Input
- Two (2) Analog 4-20 mA Inputs for Optional Moisture Probe
Communication
- Standard Interfaces: RS-232 / 485, USB 2.0, Three (3) Analog 4-20 mA Outputs for H Level, H 2 2 Rate of Change (ROC) & Optional Moisture
- Supported Protocols: DNP3 & Modbus
Current
- 0.8 A, Max.
Digital Input
- RS-232 for Configuration Utility & Diagnostics
- USB Mini B for Direct Connection with Computer or USB Thumb Drive
Display
- Integrated Display of H2 Level, H2 Rate of Change (ROC), Moisture (Optional) & Service Codes
Enclosure Rating
- NEMA 4X, IP66
Frequency
- 50/60 Hz
Immunity
- Conducted RF Immunity: EN 61326-1: 2006 (IEC 61000-4-6: 2009)
- EFT: EN 61326-1: 2006 (IEC 61000-4-4: 2004 A1: 2010)
- ESD: EN 61326-1: 2006 (IEC 61000-4-2: 2009)
- Magnetic Field Immunity: EN 61326-1: 2006 (IEC 61000-4-8: 2010)
- Radiated Immunity: EN 61326-1: 2006 (IEC 61000-4-3: 2006 A2: 2010)
- Surge: EN 61326-1: 2006 (IEC 61000-4-5: 2006)
- Voltage Dips & Interrupts: EN 61326-1: 2006 (IEC 61000-4-11: 2004)
Oil Inlet Pressure
- psi: 0 to 100 (kPa: 0 to 700, bar: 0 to 7)
Oil Temperature
- -40° to 120° C (-40° to 248° F)
- -40° to 180° C (-40° to 356° F)
Operating Temperature
- -50° to 55° C (-58° to 131° F)
Radiated & Conducted Emissions
- Current Harmonics: EN 61000-3-2: 2006 (EN 61000-3-2: 2006 A1: 2009 Class A)
- Radiated & Conducted Emissions: EN 61326-1: 2006 (CISPR 11: 2009 A1: 2010 Class A)
- Voltage Fluctuations: EN 61000-3-3: 2008 (EN 61000-3-3: 2008 Class A)
Range
- Hydrogen (H₂): 20 to 10,000 ppm
- Moisture-in-Oil: 0-100 % RS
Repeatability
- Hydrogen (H₂): ± 5 % or ± 10 ppm
Safety
- CSA C22.2 No. 61010-1-04
- IEC 61010-1, 61010-2-81
- UL 61010-1 (2nd Edition)
Voltage
- 100-240 Vac