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Active Corrosion Monitoring
OnGuard Smart
The Purafil OnGuard® Smart (OGS) Atmospheric Corrosion Monitor indicates the level of corrosion before severe damage occurs, preventing costly downtime and maintenance repairs. The OnGuard’s copper and silver sensors measure the rate of corrosion in real-time. An internal data logger stores the results to be accessed through the internet or directly transmit to a process control system. The latest generation of OnGuard monitors now includes a room pressure sensor, and Wi-Fi capabilities.
Features
- Tracks peaks and trends to determine the level of corrosion
- Measures temperature, relative humidity, and room pressure
- Low maintenance: Sensors remain reliable until reaching 4000 Angstroms of cumulative corrosion
- Direct interface provided by the backlit LCD and keypad
- Remote power from network cable (PoE)
- 4-20mA connection for existing facility management systems or distributed control systems (DCS)
- Accurate within ± 1% of full span
Benefits
- Indicates the level of corrosion before damage occurs, preventing costly repairs/downtime
- Ethernet and Wi-Fi enabled
- Easy remote access to data and graphs
- RoHS compliant
- Measures corrosion, room air pressure, temperature,
and relative humidity on a continuous basis
- Provides incremental and cumulative corrosion data
- Easy to install
- Long service life
- Readings correspond to ISA Standard 71.04-2013
Principle of Operation
The OGS comes with two quartz crystal microbalance (QCM) sensors, one that is plated with copper and another with silver. The QCM is used to measure the corrosive film that results from the environment. This highly sensitive method of measurement will indicate contaminant levels at or less than one part per billion (1 ppb). The corrosion film thickness is measured and recorded in Angstroms (Å). This measurement corresponds directly to ISA Standard S71.04-2013.
ISA STANDARD ANSI / ISA-71.04-2013* | ||
Severity Level | Copper Corrosion | Silver Corrosion |
G1 – Mild | <300 Angstroms / 30 days | <200 Angstroms / 30 days |
G2 – Moderate | <1000 Angstroms / 30 days | <1000 Angstroms / 30 days |
G3 – Harsh | <2000 Angstroms / 30 days | <2000 Angstroms / 30 days |
GX – Severe | >2000 Angstroms / 30 days | >2000 Angstroms / 30 days |
OnGuard 4000
The Purafil OnGuard 4000 (OG4) Atmospheric Corrosion Monitor indicates the level of corrosion before severe damage occurs, preventing costly downtime
and maintenance repairs. Reactivity monitoring is an accurate and reliable
method of evaluating the quality of air, characterizing the room environment,
and evaluating the effectiveness of chemical filters. The OG4’s copper and
silver sensors measure the rate of corrosion in real-time. An internal data logger
stores the results to be accessed through the internet or directly transmit to a
process control system. Ideal for control rooms, server rooms, motor control
centers, rack rooms, or other areas where corrosion is a concern, the OG4
prompts preventive action before serious problems develop.
Features
Features
- Measures corrosion, temperature, and relative humidity on a continuous basis
- Direct interface provided by the backlit LCD and keypad
- Remote power from network cable (PoE)
- 4-20mA connection with existing facility management systems or distributed control systems (DCS)
- AA battery-powered for remote or inaccessible areas
- Provides incremental and cumulative corrosion data
- Long service life
- Accurate within ± 0.5-1% of full span
- Indicates the level of corrosion before severe damage occurs
- Prevents costly repairs and production downtime
- Tracks peaks and trends to determine the level of corrosion
- Easy access to data and graphs
- Easy access to data and graphs
- Easy access to data and graphs
- RoHS compliant
Principle of Operation
The OG4 comes with two quartz crystal microbalance (QCM) sensors, one that is plated with copper and another with silver. The QCM is used to measure the corrosive film that results from the environment. This highly sensitive method of measurement will indicate contaminant levels at or less than one part per billion (1 ppb). The corrosion film thickness is measured and recorded in Angstroms (Å). This measurement corresponds directly to ISA Standard S71.04-2013.
The OG4 comes with two quartz crystal microbalance (QCM) sensors, one that is plated with copper and another with silver. The QCM is used to measure the corrosive film that results from the environment. This highly sensitive method of measurement will indicate contaminant levels at or less than one part per billion (1 ppb). The corrosion film thickness is measured and recorded in Angstroms (Å). This measurement corresponds directly to ISA Standard S71.04-2013.
Connectivity Benefits
• Easy to install
• Uses Simple Network Management Protocols (SNMP)
• Connect using any device with a web browser
• Communicate via local network and remotely over internet
• Capable of wireless connectivity with OTS adapters like Netgear WNCE2001, Linksys WET610N
• Enable email alerts for alarm thresholds
• Easy to install
• Uses Simple Network Management Protocols (SNMP)
• Connect using any device with a web browser
• Communicate via local network and remotely over internet
• Capable of wireless connectivity with OTS adapters like Netgear WNCE2001, Linksys WET610N
• Enable email alerts for alarm thresholds
Connectivity Requirements
Special care should be given to selecting the location when installing the OG4. Select a clean, dry location free of excess vibration where the temperature will be between -10° and 75° C (14° and 167° F) and the relative humidity will be between 10% and 95% non-condensing. It should be placed near the electronics, or within the protected space, to provide an accurate representation of the air affecting the equipment.
Special care should be given to selecting the location when installing the OG4. Select a clean, dry location free of excess vibration where the temperature will be between -10° and 75° C (14° and 167° F) and the relative humidity will be between 10% and 95% non-condensing. It should be placed near the electronics, or within the protected space, to provide an accurate representation of the air affecting the equipment.
About Purafil
Purafil is the global leader for protecting people, processes, and investments by engineering and manufacturing customized clean air solutions. Since 1969, we have earned the customer loyalty of 20,000 companies, delivering world-class expertise and driving technical standards of the industry. We offer chemical filters, equipment and monitors in four vertical markets: Industrial, Commercial, Electronics and Wastewater. Purafil delivers superior customer value and provides insight on the markets.
Purafil is the global leader for protecting people, processes, and investments by engineering and manufacturing customized clean air solutions. Since 1969, we have earned the customer loyalty of 20,000 companies, delivering world-class expertise and driving technical standards of the industry. We offer chemical filters, equipment and monitors in four vertical markets: Industrial, Commercial, Electronics and Wastewater. Purafil delivers superior customer value and provides insight on the markets.
OnGuard Lite
The Purafil OnGuard® Lite provides a simple indication of a corrosion problem in your facility. This new monitor uses a silver sensor to identify if the atmosphere is corrosive enough to cause problems with equipment reliability. Silver is the most sensitive metal for corrosion monitoring.
Applications:
- Server rooms
- Rack rooms
- Control rooms
- Motor control centers
Benefits:
- Simple pass or fail result
- Corresponds to ISA Standard S71.04-2013
- No maintenance
- RoHS compliant
- No lab testing required
Features:
- LED corrosion indicator light
- Simple peel and stick installation
- Silver corrosion sensor
- Compact design
Principle of Operation:
The OnGuard Lite operates by using a silver electrical continuity sensor. The electrical current passed through the silver plate acts as the detector of corrosion. If there is too much corrosive gas in the environment then the LED indicator light will flash red. If the LED light stays green for the entire 6 month life of the OnGuard Lite then the environment is classified as G1, and does not have a corrosive gas contaminate problem.
Corrosion Alert:
If your OnGuard Lite flashes red, the environment will require further investigation. Once alerted to a corrosion problem, corrective measures can be taken to prevent costly equipment failure. Visit http://www.purafil.com/lite for more information.
Use Requirement | Coupon | OnGuard Lite | |
Laboratory Test Report | Yes | ||
Precise Corrosion Measurement | Yes | ||
Simple Pass/Fail Result | Yes | ||
Visible Indicator | Yes | ||
No Lab Analysis Required | Yes | ||