Single Gas DGA Monitor

DGA Method: Solid-state H2 sensor immersed directly in the oil

Hydrogen (H2 )

Accuracy

Repeatability

Range

±15% or ±20 ppm

±5% or ±10 ppm

20 – 10,000 ppm

1) Lower Detection Limit 20 ppm

Additional Monitoring Options (Optional)

Accuracy

Range

Moisture-in-Oil

±5%

0-100% RS

Oil Temperature

±2°C (typically)

-40°C to +120°C

Gas Analysis Parameters

Oil Sampling Rate

Continuous oil sampling; gas analysis is reported every 30 minutes

Data Management

Data is date and time stamped; up to five years of data is stored in memory

Display

Integrated display of H2 Level, H2 Rate of Change (ROC), Moisture (optional) and Service Codes.

Alarms

Relay Contact Ratings

Max switched Power 100 W or 600 VA, Max switched Current 3 A, Max switched Voltage 150 VDC or 300 VAC

3 DGA Relays

Three (3) programmable alarm relays for H2 Level (ppm), H2 Rate of Change (ROC) (ppm/day), and optional Moisture

2 Alarm Relay

Two (2) alarm relays for power and service status

External Inputs

Digital Inputs

RS232 for configuration utility and diagnostics; USB Mini B for direct connection with computer or USB Thumb Drive

Analog Inputs

Two (2) analog 4-20 mA inputs for optional moisture probe

Communications

Standard Interfaces

RS232 / 485, USB 2.0, Three (3) analog 4-20 mA outputs for H Level, H 2 2 Rate of Change (ROC) and optional Moisture

Supported Protocols

DNP3 and Modbus

Environmental Specifications

Operating Temperature

-50°C to +55°C

Oil Temperature

-20°C to +105°C

Oil Inlet Pressure

0 to 100 psi (0 to 7 bar)

Physical Specifications

Product Dimensions

HxWxD: 9.2 in x 9.9 in x 12.3 in (23.4 cm x 25.1 cm x 31.2 cm)

Product Weight

9 lb (4 kg)

Enclosure Rating

NEMA 4X, IP66

Input Power Requirements

Voltage

100 - 240 VAC

Frequency

50/60 Hz

Current

0.8 A max.

Radiated and Conducted Emissions

Radiated Emissions

EN 61326-1: 2006

CISPR 11: 2009 A1: 2010 Class A

Conducted Emissions

EN 61326-1: 2006

CISPR 11: 2009 A1: 2010 Class A

Current Harmonics

EN 61000-3-2: 2006 A1: 2009 A

EN 61000-3-2: 2006 A1: 2009 Class A

Voltage Fluctuations

EN 61000-3-3: 2008

EN 61000-3-3: 2008 Class A

Radiated and Conducted Immunity

ESD

EN 61326-1: 2006

IEC61000-4-2: 2009

Radiated Immunity

EN 61326-1: 2006

IEC61000-4-3: 2006 A2: 2010

EFT

EN 61326-1: 2006

IEC61000-4-4: 2004 A1: 2010

Surge

EN 61326-1: 2006

IEC61000-4-5: 2006

Conducted RF Immunity

EN 61326-1: 2006

IEC61000-4-6: 2009

Magnetic Field Immunity

EN 61326-1: 2006

IEC61000-4-8: 2010

Voltage Dips & Interrupts

EN 61326-1: 2006

IEC61000-4-11: 2004

IEC 60255-21-1

Safety

IEC 61010-1

IEC 61010-2-81

UL 61010-1 (2nd Edition)

CSA-C22.2 No. 61010-1-04