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The Model
221R offers a complete state-of-the-art
solution for Oxygen Deficiency Monitoring.
Our standard
Model 221R is outfitted with a complete
package of electronic features and utilizes
a very accurate and reliable 10-year life
zirconium oxide sensor. This combination
provides unmatched stability and is virtually
maintenance free over its entire life.
Competitive models
generally suffer from undesirable stability
issues causing frequent and expensive false/nuisance
alarms. The undesirable drift usually results
from just slight ambient temperature change
or the unavoidable decline in electrochemical
sensor outputs.
Our innovative
engineering and sensor technology guarantee
unmatched stability and performance over
a wide temperature range of 0º to 130º
F, thereby eliminating costly nuisance alarm
issues.
Our sensor requires
no support gases and can be easily and accurately
calibrated using compressed air. A standard
calibration takes approximately 1 minute
and only needs to be performed every 6 months.
Given the remarkable
stability over an extreme temperature range,
complete electronics package, and a compact
water tight NEMA 4X enclosure, the Model
221R is a perfect fit for a wide range of
applications, including: clean room, control
rooms, confined spaces, refrigerator/freezer,
and applications that are susceptible to
routine hose down requirements.
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a Free Quote
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Listed below is a summary of all the standard
features included with the base Model 221R.
Standard features include:
- Red backlit 3 ½
digit LCD. High-resolution and easy
to read from across the room
- 2-Factory preset oxygen
depletion alarms. Set for OSHA standards
of 20.0% for CAUTION and 19.5% for DANGER.
Relays are Form C contacts and rated for
5A @115VAC
- 95db audible alarm
that sounds when the oxygen level drops
below 19.5% danger set point
- Battery back up
in the event of AC power loss
- User configurable alarm
logic: Fail-safe/non-failsafe, energize
above/below set point, and latching/non
latching
- Measurement range is
0-25%. Optional ranges available upon
request
- Data logger. Logs
data for 15 days continuously @ 1min intervals.
- Isolated 4-20mA. analog
output
- RS-485 bi-directional
communications
- Simple, intuitive user
interface
- Customer selectable
security lockout feature
- Weather tight NEMA 4X
enclosure
- RFI protected
- Unmatched 2-year warranty
on all components including sensor
- Bright status LED for
any alarm conditions
- 1 minute front panel
alarm silence button
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AMI
guarantees higher quality
and exceptional services
at a lower price.
REQUEST
QUOTE
Or
call us at: 714.848.5533
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The Model 221R is a rugged piece of safety
equipment designed for industrial applications.
AMI leads the industry with the most complete
set of standard features while maintaining
the industry's most competitive pricing.
UL 61010-1 standard approval is currently
pending.
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