Compressed-Air Dew Point Monitor
RHB-CAC1S2
Standard
U NIST-Traceable
U Accuracy: ±0.2°C
U Virtually
Maintenance Free
U Easy to Install
U Self-Monitoring
U User-Programmable
Audible and Visual
Alarms and Relay Contact
U Programmable Automatic
Balance Control (ABC)
U Widest Available Range of
-60 to 50°C (-76 to 122°F)
These compressed-air dew point
monitors have been designed to
offer the highest level of reliability
and accuracy available in such
systems. They are fully NISTtraceable and employ a chilledmirror sensor, the most accurate
dew point sensing scheme
available, to deliver consistent driftfree measurements without regular
calibrations or sensor replacement.
These compressed-air monitors
are complete dew point measuring
systems. The rugged aluminum
NEMA 12 (IP55) enclosure houses
the sensor and control circuitry
(including flow control), and is easily
wall mounted to conserve space. Only
the sample line and power connection
are needed for the system to be
operational.
The monitors also
offer a programmable
automatic balance
control (ABC) cycle
that corrects for the
light-reducing effects of
mirror contaminants and
allows for continuous
monitoring and virtually
maintenance-free
operation.
Specifications
Dew/Frost Point Range:
2-Stage (S2):
-40 to 50°C (-40 to 122°F)
3-Stage (S3):
-60 to 50°C (-76 to 122°F)
Dew/Frost Point Accuracy:
0.2°C (±0.5°F)
Functionality
Power: 90 to 250 Vac,
50 to 400 Hz
Operating Temperature:
0 to 50°C (32 to 122°F)
Sample Connection:
1
⁄4" compression fitting
Sample Flow Rate: 0.5 to 5 SCFH;
integral flowmeter
Sample Pressure: 0 to 150 psig
(higher pressures available,
consult Engineering Department)
Output:
Analog: 4 to 20 mA (0 to 5 Vdc),
-50 to 50°C (-58 to 122°F) or
-60 to 75°C (-76 to 167°F)
Compliance: 9.0 Vdc, 450 Ω
Display: Red LED, 0.5” high;
8-digit alphanumeric
Alarm:
Audible: >98 dB @ 2'
Relay: 1 form “C”, non-latching;
10 A @ 240 Vac, 8 A @ 24 Vdc,
1
⁄2 hp @ 240 Vac
Visual: Flashing “ALARM” message
RHB-CAC1S2
shown smaller than
actual size.
PR-11-3-100-1/4-6-E-120
replacement temperature
probe with 3 m (10')
cable, shown smaller
than actual size.
See omega.com
for more probes.
Standard Features
U Programmable Automatic
Balance Control (ABC)
U 8-Digit Alphanumeric Display
U User-Programmable Alarm
U Internal Flowmeter and Valve
U Audible and Visual Alarms
U Alarm Relay, Form “C”
U 4 to 20 mA (0 to 5 Vdc)
Analog Output
U Microprocessor-Controlled
U Space-Saving Wall Mount
To Order
Model No. Description
RHB-CAC1S2
RHB-CAC1S2-RHB-ATP Compressed-air dew point monitor with 2-stage
sensor and temperature probe with 3 m (10') cable
RHB-CAC1S2C Compressed-air dew point monitor with 2-stage
sensor and fan cool
RHB-CAC1S2C-RHB-ATP
fan cool, and temperature probe with 3 m (10') cable
RHB-CAC1S3
RHB-CAC1S3-RHB-ATP Compressed-air dew point monitor with 3-stage chill
mirror and temperature probe with 3 m (10') cable
Comes complete with operator’s manual and NIST certificate.
Ordering Example: RHB-CAC1S2, compressed-air dew point monitor with 2-stage sensor.
Visit omega.com/rhb-cac1s for Pricing and Details
Compressed-air dew point monitor with 2-stage sensor
Compressed-air dew point monitor with 2-stage sensor,
Compressed-air dew point monitor with 3-stage chill mirror
Hu-57