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Description: These floats are: Material: HIPS or ABS Ratings: 160 µA to 100 mA Operating Angle (for Normally Open or Pump Down). Contacts close @ 25° or before horizontal Contacts open @ at horizontal
- Device Classification: Sensor-Only
- Level Measurement Type: Point Level / Multi-Point Levels
- Media Type: Liquid
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Description: These floats are: Material: HIPS or ABS Ratings: 160 µA to 100 mA Operating Angle (for Normally Open or Pump Down). Contacts close @ 45° above horizontal Contacts open @ 45° below horizontal
- Device Classification: Sensor-Only
- Level Measurement Type: Point Level / Multi-Point Levels
- Media Type: Liquid
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Supplier: Gems Sensors & Controls
Description: N.O. for one load and N.C. for the other. FLIP-PAKS: provide low-current, "start-stop" or "on-off" switching for industrial motor, liquid level and other control systems. Units hold operational state up to 1/2 second during momentary power loss to cut nuisance shutdowns; low voltage
- Maximum Current: 0.0350 amps
- Mounting: Other
- Operating Temperature: 0.0 to 120 F
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Supplier: Gems Sensors & Controls
Description: Designed for use with switches or sensors monitoring flow, pressure, level, etc. They render non-voltage-producin g sensors intrinsically safe for operation in potentially hazardous areas Streamlined housing suited for group-mounting on a common earth-grounded plate
- AC Coil Voltage: 25 to 250 volts
- Features: Intrinsically Safe
- Maximum AC Switching Voltage: 250 volts
- Maximum Current: 2 amps
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Supplier: Larson Electronics LLC
Description: The EXPRL-96 Explosion Proof-Intrinsically Safe LED Trouble Light is designed to handle the demands of working within hazardous locations and environments where potentially explosive vapors, gases and other volatile compounds may be encountered. This intrinsically
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Supplier: OMEGA Engineering, Inc.
Description: need to be intrinsically safe or have an intrinsic safety barrier. The LVCN4300 series point level switch probe works as a remote probe and is compatible with the LVCN400 series relay. This combination allows the electrode to be used in temperatures up to 177C
- Device Classification: Sensor-Only
- Level Measurement Type: Point Level / Multi-Point Levels
- Maximum Operating Pressure: 290 psi
- Measuring Range: 3.96 to 72 inch
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Supplier: Radwell International
Description: DATALOOP CONTROLLER, WITH 2 SPST RELAYS & 4-20MA REPEATER 'INTRINSICALLY SAFE'. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, ISOLATING SWITCHING AMPLIFIER, 2-CHANNEL, INTRINSICALLY SAFE INPUT CIRCUITS, NO / NC SELECTABLE, 2 PNP TRANSISTOR OUTPUTS, 24 VDC. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, TRANSMITTER / RADAR ANTENNA, 24 VDC, 4-20 MA, DIGITAL DISPLAY / KEYPAD, INTRINSICALLY SAFE, DIE CAST, 1/2" NPT, TFE, 316 STAINLESS STEEL, 300 MM ANTENNA EXT. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Automation24, Inc.
Description: The Nivotester FTW325 conductive point level switch from Endress+Hauser is an intrinsically safe limit switch for connection to conductive sensors. The compact enclosure allows simple serial mounting on a top-hat rail in the control cabinet. Sensors from the
- Device Classification: Sensor System
- Level Measurement Type: Point Level / Multi-Point Levels
- Meter Technology: Electrical Conductivity or Resistance
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Supplier: KOBOLD Instruments, Inc.
Description: 4 - 20 mA transmitter capable of operating in a two or three wire model On-board LED display for easy calibration SPDT relay which can be configured as a level alarm or for auto tank fill/empty All the above are STANDARD! Loop powered and Intrinsically Safe
- Material Temperature Range: -40 to 140 F
- Maximum AC Voltage: 240 volts
- Maximum Current: 12 amps
- Maximum DC Voltage: 120 volts
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Supplier: Fluidwell bv
Description: / low switch points and status. On-screen engineering units are easily configured from a comprehensive selection. Advantages Robust IP66, IP67 (NEMA4X) field enclosure. It is so rugged, you can even stand on it! Intrinsically Safe
- Accuracy: 0.0500 ±% FS
- Control Signal Output: Switch / Relay Output
- Control Technique: Other
- Controller Inputs: DC Voltage Input, Current Loop (Transmitter) Input
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Supplier: Automation24, Inc.
Description: The Nivotester FTW325-A2B1A conductive point level switch from Endress+Hauser is an intrinsically safe limit switch for connection to conductive sensors. The compact enclosure allows simple serial mounting on a top-hat rail in the control cabinet. Sensors from the
- Device Classification: Sensor System
- Level Measurement Type: Point Level / Multi-Point Levels
- Meter Technology: Electrical Conductivity or Resistance
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Supplier: Arjay Engineering
Description: 1, Group C,D The electronics for this model can also be mounted remote from the probe. Refer to the Model 2852-LS. The probe becomes Intrinsically Safe when ordered with an IS Barrier installed in 2852-LS control panel: CSA Div 1, Class 1, Groups A,B,C,D
- Accuracy: 0.0400 ±% FS
- Control Signal Output: Switch / Relay Output
- Form Factor: Panel / Chassis Mount
- Media: Liquid
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Supplier: Arjay Engineering
Description: 1, Group C,D The electronics for this model can also be mounted remote from the probe. Refer to the Model 2852-LS. The probe becomes Intrinsically Safe when ordered with an IS Barrier installed in 2852-LS control panel: CSA Div 1, Class 1, Groups A,B,C,D
- Built-in Alarm / Indicator: Yes
- Communication Interface Options: Serial Interface
- Controller Functions: Yes
- Handles Slurries / Suspended Solids: Yes
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Supplier: Siemens Process Instrumentation
Description: SITRANS LR200 is a 2-wire, 6 GHz pulse radar level transmitter for continuous monitoring of liquids and slurries in storage and process vessels including high temperature and pressure, to a range of 20 m (66 ft). SITRANS LR200’s unique design allows safe and simple programming using
- Level Measurement Type: Continuous Level
- Material Temperature Range: -40 to 392 F
- Maximum Operating Pressure: 580 psi
- Measuring Range: 787 inch
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Supplier: First Sensor AG
Description: and temperature compensated and offer an amplified analogue output signal (HART and PROFIBUS-PA on request). For use in hazardous areas an intrinsically safe version of the transmitter according to ATEX II 1G (EEx ia IIc T4) is optionally available. Typical applications include
- Maximum Operating Pressure: 58.02 psi
- Meter Technology: Other
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Supplier: Siemens Process Instrumentation
Description: (+392 ºF). The unique design of the SITRANS LR560 allows safe and simple programming using the Intrinsically Safe handheld programmer without having to open the instrument’s lid. The LR560 includes an optional graphical local display interface (LDI) that improves setup and
- Level Measurement Type: Continuous Level, Point Level / Multi-Point Levels
- Material Temperature Range: -40 to 392 F
- Maximum Operating Pressure: 43.5 psi
- Measuring Range: 3937 inch
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Supplier: OMEGA Engineering, Inc.
Description: The OMEGA LVR20 and LVR30 Series continuous liquid level sensors operate on a basic voltage divider network principle. As the float rises, a magnet in the float closes a series of reed switches in sequence which varies the tapped-off portion of the voltage divider resistor network. The
- Level Measurement Type: Continuous Level
- Material Temperature Range: -40 to 230 F
- Maximum Operating Pressure: 300 psi
- Media Type: Liquid
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Supplier: Siemens Process Instrumentation
Description: sanitary requirements are no challenge for this transmitter. Easy setup with graphical HMI and Quick Start Wizard or remote access via EDD or DTM Intrinsically safe infrared handheld programmer for local interface Field proven with rugged encapsulated enclosure based on 10
- Device Classification: Transmitter
- Level Measurement Type: Continuous Level
- Material Temperature Range: 176 F
- Measuring Range: 792 inch
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Supplier: Siemens Process Instrumentation
Description: sanitary requirements are no challenge for this transmitter. Easy setup with graphical HMI and Quick Start Wizard or remote access via EDD or DTM Intrinsically safe infrared handheld programmer for local interface Field proven with rugged encapsulated enclosure based on 10
- Device Classification: Transmitter
- Level Measurement Type: Continuous Level
- Material Temperature Range: 338 F
- Measuring Range: 792 inch
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Supplier: Gems Sensors & Controls
Description: controls can be used in hazardous applications as an intrinsically safe interface to non-powered contacts and sensors such as push button operators, limit, temperature, pressure and vacuum switches. Its low cost, integrated features and compact size also make it ideal for
- Control Signal Output: Switch / Relay Output
- Form Factor: Circuit Board
- Media: Liquid
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Supplier: RS Components, Ltd.
Description: Premium range of CSA approved intrinsically safe ultrasonic level point switches from Flowline offer a reliable sensing solution within chemical, solvent, hydrocarbon & petroleum based liquids. Thanks to the universally mounting style of the Switch-Tek series they
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Supplier: Gems Sensors & Controls
Description: Solid State Reliability Up to 100K Ohm/cm Sensitivity Internal Surge Suppression Single Level or Differential Service Series 27 intrinsically safe controls have SPDT output contacts and are UL approved for use in Class I, Groups A, B, C & D
- Control Signal Output: Switch / Relay Output
- Form Factor: Circuit Board
- Media: Liquid
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Supplier: PR electronics
Description: Application 9107B is a 1- or 2-channel isolated 1:1 driver barrier for intrinsic safety applications. Operation and drive control of I/P converters, valves and indicators mounted in the hazardous area. Operation of HART® devices is possible as the
- Agency Approvals: ATEX, FM Approval, UL Listed, Other
- Barrier Type: Galvanic Isolator
- Maximum Open Circuit Voltage (VOC): 32 volts
- Maximum Short Circuit Current (ISC): 1000 milliamps
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Supplier: PR electronics
Description: define high and low limits for detection of loop current level. If these limits are exceeded, the status relay will activate. In the 1-channel version the status relay can be used as a simple limit switch. I.S. splitter application - 1 input and 2 outputs. In the dual channel
- Agency Approvals: ATEX, FM Approval, UL Listed, Other
- Barrier Type: Galvanic Isolator
- Maximum Open Circuit Voltage (VOC): 32 volts
- Maximum Short Circuit Current (ISC): 1000 milliamps
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Supplier: OMEGA Engineering, Inc.
Description: . Hermetically sealed, these switches provide precise repeatability, with actuation points that remain constant over the life of the unit. Note: The LV140 sensor is a non-voltage- producing device and does not contain energy storing components. However, since primary use is in hazardous
- Configuration (Normal State): Normally Closed (NC)
- Media Type: Liquid
- Meter Technology: Mechanical / Magnetic Floats
- Mounting Options: Top mount
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Supplier: RS Components, Ltd.
Description: switch is rendered intrinsically safe for hazardous locations when properly connected to the output of these Zener Barriers. All models are highly reliable and excellent quality. Accessory Type = Dual Channel Zener Barrier
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Supplier: RS Components, Ltd.
Description: non-voltage-producin g sensor or switch is rendered intrinsically safe for hazardous locations when properly connected to the output of these Zener Barriers. All models are highly reliable and excellent quality. Accessory Type = Single Channel Zener Barrier
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Supplier: RS Components, Ltd.
Description: non-voltage-producin g sensor or switch is rendered intrinsically safe for hazardous locations when properly connected to the output of these Zener Barriers. All models are highly reliable and excellent quality. Accessory Type = Single Channel Zener Barrier
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Supplier: Electro-Sensors, Inc.
Description: MTS Tilt Switches and SCU-200 Control Unit Features • Easy to install, requires little maintenance • Control unit interfaces with any tilt switch probe • Advanced solid state electronic circuitry • Intrinsically safe control unit available
- Device Classification: Sensor-Only
- Level Measurement Type: Point Level / Multi-Point Levels
- Media Type: Dry Material (Bulk Solids and Powders)
- Mounting Options: Top Mount
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Supplier: PMC Engineering LLC
Description: features in a wide range of industrial or process applications where pressure or level limits are critical. ATM/GR Series Accuracy: = ± 0.1 % FS Full scale ranges from 1 to 15,000 psi Gauge, absolute or sealed gauge 0/4 to 20 mA Output Operating temperature: -40 to 185°F 2 Switch
- Accuracy: 0.1000 to 0.2500 ±% FS
- Electrical Output: Analog Current, Switch / Alarm
- Features: Intrinsically Safe, Temperature Compensation
- Media: Liquid, Gas
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Supplier: Arjay Engineering
Description: remote from the probe. Refer to the Model 2852-OWS. The probe becomes Intrinsically Safe when ordered with an IS Barrier installed in 2852-OWS control panel: CSA Div 1, Class 1, Groups A,B,C,D
- Built in alarm indicator: Yes
- Communication Interface Options: Serial Interface
- Controller Functions: Yes
- Material Temperature Range: -76 to 500 F
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Supplier: OPW Engineered Systems
Description: A unique, pulsed — and intrinsically safe — electrical signal is generated by the control monitor and is transmitted to the sensors via a coiled cord and optic format plug.When sensors on the transport are dry a signal is returned to the monitor. If the signal meets pre
- Built-in Alarm / Indicator: Yes
- Communication Interface Options: Other
- Controller Functions: Yes
- Maximum AC Voltage: 240 volts
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Supplier: Environment One Corporation
Description: -proof, and intrinsically safe designs Custom configurations to meet site-specific requirements Suitable for new and retrofit applications
- Application: Process Gas
- Display: Digital
- Electrical Outputs: Analog Current, Switch
- Features: Audible or Visual Alarms, Controller, Data Logger, Hazardous Environments, Intrinsically Safe, Self Calibration
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Supplier: SensorsONE, Ltd.
Description: . The analogue output for the DS 201P flush pressure gauge sensor is available in 4 versions, a 4 to 20 milliamp loop, 3 wire 0 to 10 volts, intrinsically safe 4 to 20mA current or a 5 to 1 adjustable 4 to 20mA (3 wire), the latter of which can be configured via the keypad menu list.
- Pressure Reading: Absolute
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Supplier: ABB Measurement & Analytics
Description: temperature –20 to 60 °C (–4 to 140 °F) Electrical Power supply (FF models and PA models) Supply voltage: – 9 to 32 V DC (General purpose installations) – 9 to 24V DC (Intrinsically safe Ex ia installations
- Conductivity Accuracy: 1 ±% Full Scale
- Display Type: Digital Display
- Electrical Output: Switch / Alarm Relay Output
- Measures Conductivity / Dissolved Solids: Yes
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Supplier: Erdmann Corporation
Description: Foundation Fieldbus™ Protocol Designed for use in the process industries, Foundation fieldbus offers multi-drop capabilities, long trunk length, and is fully compatible with intrinsic safety circuits. Foundation fieldbus H1 level has been designed as the ideal digital bus
- Data Acquisition Device Type: I/O Module
- Digital I/O Channels: 3 #
- Form Factor: Modular Bay / Slot System
- Network Options: Foundation Fieldbus
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Supplier: Erdmann Corporation
Description: Foundation Fieldbus™ Protocol Designed for use in the process industries, Foundation fieldbus offers multi-drop capabilities, long trunk length, and is fully compatible with intrinsic safety circuits. Foundation fieldbus H1 level has been designed as the ideal digital bus
- Application: General Lab and Industrial
- Data Acquisition Device Type: I/O Module
- Digital I/O Channels: 3 #
- Form Factor: Modular Bay / Slot System
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Supplier: Cole-Parmer
Description: most venturi vacuum pumps. Since it uses no electricity it is inherently intrinsically safe. The vacuum switch is adjustable from 0 to 30†Hg with a hysteresis of 3â€Hg.
- Type Of Pump: Other
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Supplier: Cole-Parmer
Description: most venturi vacuum pumps. Since it uses no electricity it is inherently intrinsically safe. The vacuum switch is adjustable from 0 to 30†Hg with a hysteresis of 3â€Hg.
- Type Of Pump: Other
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Supplier: ValueTronics International, Inc.
Description: ATEX II 1G EEx ia IIC T4 Compliant Built-in pressure/vacuum hand pump, with fine adjust vernier and bleed valve. Pressure measurement to 0.05% of full span, using an internal pressure sensor. Pressure measurement to 200 bar using any of eight intrinsically safe Fluke
- Physical Properties: Acoustic (Microphones)
- Process, Environmental, Thermodynamic Properties: Pressure / Vacuum
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Supplier: ValueTronics International, Inc.
Description: II, 1G EEx ia IIC T4 Compliant Built-in pressure/vacuum hand pump, with fine adjust vernier and bleed valve Pressure measurement to 0.05% of full span, using an internal pressure sensor Pressure measurement to 200 bar using any of eight intrinsically safe Fluke 700PEx
- Physical Properties: Acoustic (Microphones)
- Process, Environmental, Thermodynamic Properties: Pressure / Vacuum
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Supplier: ValueTronics International, Inc.
Description: II 1G EEx ia IIC T4 Compliant Built-in pressure / vacuum hand pump, with fine adjust vernier and bleed valve Pressure measurement to 0.05% of full span, using an internal pressure sensor Pressure measurement to 200 bar using any of eight intrinsically safe Fluke 700PEx
- Physical Properties: Acoustic (Microphones)
- Process, Environmental, Thermodynamic Properties: Pressure / Vacuum
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Supplier: Transcat, Inc.
Description: Overview Now there’s one intrinsically safe digital multimeter (DMM) you can use in IIC (gas), in Zone 1 and 2 and IIIC (dust), Zone 21 and 22. Whether you work in petroleum, chemical, or pharmaceutical environments, all the test and troubleshooting power you need is packed into the
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Supplier: Labconco Corporation
Description: -entry air foils; and upper containment sash foil. Other features include: nominal inflow velocity of 75 to 105 fpm; 99.99% efficient exhaust HEPA filter; variable speed built-in blower with vibration-isolated impeller and solid state control rated for 2 amps; intrinsically-safe, negative
- Cabinet Type: Class I
- Exhausted Air: 99.99 %
- Inflow Velocity: 75 to 105 SFPM
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Supplier: Labconco Corporation
Description: -entry air foils; and upper containment sash foil. Other features include:nominal inflow velocity of 75 to 105 fpm; 99.99% efficient exhaust HEPA filter; variable speed built-in blower with vibration-isolated impeller and solid state control rated for 2 amps; intrinsically-safe, negative
- Cabinet Type: Class I
- Exhausted Air: 99.99 %
- Inflow Velocity: 75 to 105 SFPM
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Supplier: Emerson Automation Solutions – Rosemount
Description: outlets. Add our optional intrinsically safe HART® port adaptor for access to the built-in data logging and advanced diagnostics, right at the transmitter via a hand-held communicator. All this amounts to a detection solution which stands alone in it's performance, versatility, and
- Display: Digital
- Electrical Outputs: Analog Current, Switch
- Features: Audible or Visual Alarms, Controller, Data Logger, Hazardous Environments
- General Gas Types: Toxic Gas, Combustible Gas
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Supplier: Larson Electronics LLC
Description: LED flashlight is impact and vibration resistant, waterproof to one meter, and comes with an included ceiling hook and belt ring for easy positioning and carrying convenience. This intrinsically safe flashlight is approved Class 1, 2, 3 Div 1, Class 1, 2, 3, Div 2 and offers users the
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Supplier: Larson Electronics LLC
Description: flashlight is impact and vibration resistant, waterproof to one meter, and comes with an included ceiling hook and belt ring for easy positioning and carrying convenience. This intrinsically safe flashlight is approved Class 1, 2, 3 Div 1, Class 1, 2, 3, Div 2 and offers users the
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Supplier: Emerson Automation Solutions – Rosemount
Description: maintains Class1 Div 2 safety levels with the face removed to access the push button controls and test jack outlets. Add our optional intrinsically safe HART® port adaptor for access to the built-in data logging and advanced diagnostics, right at the transmitter via a hand-held
- Display: Digital
- Electrical Outputs: Analog Current, Switch
- Features: Audible or Visual Alarms, Controller, Data Logger, Hazardous Environments
- General Gas Types: Toxic Gas, Combustible Gas
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Supplier: Larson Electronics LLC
Description: The XPR-9822E Explosion Proof-Intrinsically Safe LED Flashlight is Atex Certified and designed to handle the demands of working within hazardous locations and environments where potentially explosive vapors, gases and other flammable compounds may be encountered.
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Supplier: UL Standards & Engagement
Description: . NOTE 1 Electrical equipment and Ex components protected by powder filling "q" can contain electronic circuits, transformers, protection fuses, relays, intrinsically safe electrical apparatus, associated electrical apparatus, switches, etc. NOTE 2 Type of protection powder
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installations where hazardous atmospheres may exist. The switch integrates smoothly with control systems and intrinsically safe circuits, helping reduce risk and ensure consistent fluid monitoring even under challenging conditions. Its combination of safety (read more)
Browse Liquid Level Switches Datasheets for SST Sensing Ltd. -
)! Cygnus 1 Ex is Intrinsically Safe When we say the Cygnus 1 Ex is Intrinsically Safe, we mean it’s designed to operate with extremely low energy levels - not enough to ignite a hazardous atmosphere, even in the event of a fault. Intrinsic safety is a protection (read more)
Browse Ultrasonic Instruments Datasheets for Cygnus Instruments Limited -
PCB operation, a DPDT switch, time delays, and hazardous location approvals. Or choose the robust BMRX-200, designed to be fail-safe in the case of a power failure. It features a digital PCB, a DPDT switch, time delays, and hazardous location approvals (read more)
Browse Level Sensors Datasheets for BinMaster, Inc. -
Normally Open (fail to close) Normally Closed (fail to open) Limit Switch: NEMA 4/4X , Weatherproof, Intrinsically safe, SPST , NO, Red LED NEMA 4/4X /7 Weatherproof , Explosion proof, SPDT Standards (read more)
Browse Tempering Valves and Thermally Actuated Valves Datasheets for Assured Automation -
fail-safe technology for uninterrupted operation Easy installation and minimal maintenance Short lead time, ATEX rotaries ship within 7 days The BinMaster BMRX-100, BMRX-200, and BMRX-300 rotary level indicator models each offer unique features tailored to (read more)
Browse Level Sensors Datasheets for BinMaster, Inc. -
2882-LS Probe Mounted Switch The 2882-LS Probe Mount Switch provides reliable level alarm and control of liquids and solids. As a liquid or solid rises or lowers around the probe, the capacitance field changes. This is (read more)
Browse Level Sensors Datasheets for Arjay Engineering -
TBS air switches SERIES TBS air switches are single function controls that provide safe actuation of electrical devices from remote locations. These basic component switches are available (read more)
Browse Air Switches Datasheets for Tecmark Corporation -
important. It helps prevent accidents and keeps both the user and the equipment safe. Having a good safety step with discharging the capacitor properly before or handling or servicing the device is important. What is a Capacitor? Capacitors consist of simple basic electrical components (read more)
Browse Aluminum Electrolytic Capacitors Datasheets for ODG (Origin Data Global) -
certified with Exia IICT6 intrinsic safety protection, making it ideal for use in explosive or flammable environments. This explosion-proof design ensures safe performance in fuel tanks and chemical processing systems. 5. Long-Term Durability with Comprehensive Sealing With a fully (read more)
Browse Level Sensors Datasheets for Holykell Technology Company Limited -
Magnetostrictive Level Sensor SP300/SP400 Series: 1. Safety Intrinsically safe EXiaIIBT4Ga certification by PCEC. 2. Accuracy High-speed digital design, achieving level measurement accuracy up to (read more)
Browse Level Transmitters Datasheets for Holykell Technology Company Limited
More Information Top
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Ozonation of Swine-waste Liquids at Full-scale
We specified intrinsically safe barriers for the level switches that were inside the two tanks.
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Federal Register > Friday, February 12, 2010 > [75 FR 6865] Airworthiness Directives; The Boeing Company Model 737-700 (IGW) Series Airplanes Equipped With Aux...
During the SFAR 88 safety assessment, it was determined that the PATS Aircraft, LLC, FQIS and float level switch did not meet intrinsically safe electrical energy levels as described in the guidelines of Advisory Circular (AC) 25.981-1C, "Fuel Tank Ignition…
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Interim measure work plan/design for Agra, Kansas.
An intrinsically safe high-water- level switch shall be mounted on the knockout tank.
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Gas Tank Lid Monitoring Sensor (.pdf)
…is therefore not sensitive and therefore any sparks across the contacted are hermetically sealed from the environment • EX approved and intrinsically safe available • The hermetically sealed reed switch is ideally suited for switching low signal level voltages and currents which…
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Federal Register > Tuesday, July 27, 2004 > [69 FR 44580] Airworthiness Directives; Boeing Model 737-200, -200C, -300, -400, and -500 Series Airplanes
The commenter notes that the new, improved float switch is powered by 28 volts direct current (DC), which exceeds the intrinsically safe level for equipment located in fuel tanks, as defined by SFAR No. 88.
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Information Computing and Applications
Ethernet switch with explosion-proof and intrinsically safe explosion-proof form, suitable for AC 127/660V two voltage levels , the device comes with backup power, external power failure, can still work 2 h.
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