Model 201RS/RSP

ADVANCED OXYGEN MEASUREMENT MADE EASY

The MODEL 201RS and 201RSP are advanced Percent Oxygen Analyzers loaded with a full suite of standard features. The Analyzers’ compact design includes AMI’s patented ELIMINATOR CELL BLOCK technology, incorporating a complete sample system, and combines it with our industry leading Percent O2 sensors. This combination delivers accurate, reliable and extremely fast response times in a panel mounted, virtually maintenance-free package.

Technical Specifications

MODEL 201RS

Positive Pressure Samples

MODEL 201RSP

Atmospheric Pressure Or Vacuum Samples
(includes Sample Pump)
Physical & Electrical Specifications
WEIGHTGAS CONNECTIONSWETTED
PARTS
MODEL 201RSMODEL 201RSP
10.0 lbs
(4.5 kg)
10.0 lbs
(4.5 kg)
¼” 316 S.S.
compression
fittings
316 S.S. fittings, anodized aluminum cell block, acrylic flow meter & O-rings (Viton)
POWER
90 – 240 VAC <10W
model-201rs dimensions
Note: 2-year Warranty for Parts & Labor for any defects in materials or workmanship. 6-month Warranty for oxygen sensors
Operational Specifications
OUTPUT RANGES
(USER SELECTABLE)
AMBIENT OPERATIONAL
TEMPERATURE
FLOW RATE
(RECOMMENDED)
INLET GAS
PRESSURE
OPERATIONAL
CONDITIONS
StandardOptional
0 – 1.0%
0 – 5.0%
0 – 10.0%
0 – 25.0%
0 – 1000 ppm
0 – 5000 ppm
0 – 50.0%
41°F to 113°F
(5°C to 45°C)
0.1 to 2.0 SCFH
(0.05 – 1.0 Lpm)
MODEL 201RS
0.5 psig to 15 psig
(0.03 bar to 1.0 bar)

MODEL 201RSP
-6.5 psig (vacuum) to 15 psig
(-0.5 bar to 1.0 bar)
Pollution Degree 2
Installation Category II
Analyzer Performance Specifications
90% UPSCALE RESPONSE TIMES
FOR SPECIFIC RANGES
SENSITIVITYREPEATABILITYDriftHumidity
<10 sec0.5% of full scale±1.0% of full scale
at constant temperature
±1.0% of full scale in 4 weeks
at constant temperature
<85%, non-condensing
Analyzer Key Features
ELIMINATOR CELL BLOCKContains a Complete Sample System with all components, including the flow control valve, flow meter, sample, span, and seal-off solenoid valves, fully integrated
ALARMS
2 fully adjustable concentration alarms with configurable Alarm logic and Relay Contacts, featuring:
  • Alarm Bypass
  • Latching/Non-latching
  • Alarm Delays
  • Failsafe/Non-failsafe
  • Trigger Above or Below Setpoint
  • Open or Close on Alarm
ANALOG OUTPUTS4 − 20mA isolated output signals and Modbus bi-directional RS485 communication
COMMAND CENTERSoftware that works across AMI’s Analyzers and gives users access to advanced functions:
  • Calibration Details
  • Alarm Configurations
  • Data Logger with Adjustable Interval Setting
ACCESSORIES
  • Fixed Sample Pump (for MODEL 201RS)
  • Oxygen Sensors

Features & Benefits

Eliminator Cell Block with Component Call-Outs
Transparent View of ELIMINATOR CELL BLOCK

ELIMINATOR CELL BLOCK For A Leak-Free Design

The patented ELIMINATOR CELL BLOCK provides a unique, compact sample system approach and a flow-efficient sensor pocket machined into a solid metallic block. Precision cross-drilled intersecting gas passages eliminate the need for long lengths of tubing and leak-prone compression fittings. Additionally, we have engineered the metering valve and flow meter to be an integral part of the ELIMINATOR CELL BLOCK. The patented design also provides the user with direct front panel access for installing and replacing sensors, and the ability to air calibrate the analyzer, all without the need for disassembly or tools. For simple certified gas calibrations, we provided a surface mounted 3-way gas solenoid valve – activated from the front panel interface.

Command Center Software running on laptop connected to oxygen analyzer
COMMAND CENTER User Interface

Full of standard features

The MODEL 201RS and 201RSP are loaded with a full suite of advanced features without the typical ‘up charges’. The standard features include: 4-user selectable analog output ranges, dual independent alarm relay contacts, comprehensive alarm logic, alarm bypass, and 3 levels of security settings. The data logging feature provides detailed time-stamped records for O2 measurement, temperature, supply voltage and power brown-out history. Additionally, the 201RS/RSP Analyzers have integral solenoid valves for O2 sensor protection during unexpected power loss.

Model 201RS/RSP Flow Meter
Model 201RS/RSP Flow Meter

POSITIVE PRESSURE OR ATMOSPHERIC/VACUUM SAMPLING

The MODEL 201RS is designed for percent oxygen measurements in positive pressure applications, while the MODEL 201RSP includes a sample pump, making it the perfect choice for measuring percent O2 measurements in atmospheric or vacuum conditions.

Image of sensor rendering exploded to show individual elements
Exploded View of Sensor

Proprietary Sensor Technology

AMI’s patented oxygen sensors deliver unmatched performance for ultra-fast response times, accuracy, and reliability. Every sensor undergoes an intense battery of testing to ensure they meet our strict quality control standards. Our trace and percent oxygen sensors operate safely, accurately, and reliably in inert or flammable gas streams. For particularly difficult applications, our sensors can tolerate high levels of H2S, up to 500 ppm H2S, for their entire warranted life. This eliminates installing a maintenance intensive H2S scrubber that competitive oxygen analyzers require!

Available Accessories

Model 201RS/RSP Downloads