Keterangan
APPLICATIONS
For continuous analysis of trace PPM levels of oxygen ( O2) in process
gas streams. Applications include blanketing mixtures, glove boxes,
electronics, research, hydrogen/ nitrogen mixtures, and many others.
FEATURES
⢠Bright digital readout in PPM O2
⢠Ranges available from 0 to 10 PPM to 0 to 10, 000 PPM O2
⢠Microprocessor control for push button calibration
⢠Unaffected by hydrocarbons in the sample
⢠Easy-to-maintain, modular layout
⢠Built in sample pump or pressure regulator, and 4 - 20 mA outputs
⢠Manual or solenoid valves trap nitrogen ( N2) in cell to avoid depletion
when analyzer is powered off
OPTIONS
⢠Hi/ Low gas, low flow, and diagnostic alarms available
⢠Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available
⢠Sample conditioning systems available for removal of moisture,
acidic gas, and dust
⢠Cabinet purge system available for use in hazardous areas
⢠One-step ' cal-now' button with touch screen LCD display
⢠Full automatic calibration with touch screen LCD display
⢠Cold weather package for operation to -20° C ( -4° F)
⢠Cabinet coolers can be fitted to most models
⢠Sensors mounted in temperature controlled heated box to improve accuracy
CALIBRATION
⢠Nitrogen for zero
⢠Air or analyzed calibration gas for span
DESCRIPTION
The Nova 415 Series Trace O2 analyzers have been designed for the detection of trace levels of O2 in a non-corrosive gas stream. In operation, the O2 content in the sample gas is detected by a ' fuel cell' type electrochemical sensor. This sensor
produces a small current output directly proportional to the O2 in the sample. This small output is compensated for temperature,
amplified, and then displayed in PPM O2 on a digital meter. The signal is also sent to to recorder terminals as a voltage or current output. As the sensor ages, the sealed internal electrolyte will be consumed and will require eventual replacement.
The sensor normally lasts about 12 to 18 months and is a nominal-cost customer-replaceable part.
MODELS
Seven types of mounting configurations available. All tubing connections are 1/ 4" SS FNPT ( metric available) .
⢠415N4 - Wall mounted NEMA4 ( IP65) enclosure rating
⢠415N4X - Wall mounted corrosion-resistant NEMA4X
( IP65) enclosure rating
⢠415N12 - Wall mounted NEMA12 ( IP52) enclosure rating
⢠415PM - Panel mounted, slides open for easy access
⢠415RM - 19" ( 483mm) rack mounted, on sliding rails
⢠415N7MC: Wall mounted NEMA7 UL/ CSA explosion-proof with non-intrusive magnetic calibration, Class 1 Div 1 Group BCD
⢠415PMN7: Wall mounted NEMA7 sensor housing with panel mounted control cabinet ( two separate enclosures)
SPECIFICATIONS
Method of Detection : Customer-replaceable ' fuel cell' oxygen sensor
Ranges Available : Any range between 0-10 PPM and 0-10, 000 PPM
Resolution : ± 1 PPM
Accuracy and Repeatability : ± 1% of full scale ( minimum 0.5 PPM)
Drift : Less than 1% of full scale per week
Response Time ( T-90) : O2 sensor may require an initial purge down from air to low PPM O2 which may last up to 6 hours. After purge, T90 response from 1000 to 0 PPM O2 is 30 seconds.
Ambient Temperature Range : 32-122° F ( 0-50° C) . Lower temperatures ( -5° F, -20° C) with Cold Weather Package.
Linearity : ± 1% of full scale ( minimum 0.5 PPM)
Size and Weight : Dimensions will vary depending on enclosure style and options required
Power : 115VAC 60Hz ( 220VAC 50Hz available)
Output Options : 4-20ma into 500 ohms non-isolated standard
Isolated 4-20mA, RS232, RS485, MODBUS, Ethernet outputs optional
Alarms : High and/ or low alarm contacts available, relay contacts SPDT 5A @ 220VAC rating. Low flow alarm optional
Prioritas Indotrade