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Portable Dew Point Monitor
Highly Accurate,
Rugged Enclosure!
RHB-1500 Series
Standard
U Primary Field
Measurement Technique
U Accuracy: ±0.2°C
U NIST-Traceable
U Rechargeable Batteries
U Easily Transportable in
Hard Protective Case
U Wide Measurement
Range: -60 to 75°C
(-76 to 167°F)
U Microprocessor
Controlled
U Self-Balancing
RHB-1500-C1S2
shown smaller
than actual size.
This portable dew point
hygrometer integrates the accuracy
and reliability of the OMEGA® chilled
mirror with the battery life and
ruggedness required for field use.
The RHB-1500-C portable chilledmirror hygrometer has all the
standard features, such as driftfree NIST-traceable accuracy, low
maintenance, high durability, and
ease of use—in a system that is
ideally suited for the demands of
field use. Whether you use the
RHB-1500-C as a field transfer
standard or to spot-check your
process air dryness or dew point,
you’ll find this system provides
trouble-free operation.
The RHB-1500-C is a self-contained
system. Not only is field assembly
not required, but also there is not
a need to carry around a myriad
of individual components such as
control boxes, sensors, cables,
pumps, and power cords. Simply
attach the sample line, adjust the
flow (with the integral flowmeter),
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and turn on the power. Within
minutes you’ll be collecting field dew
point data with the same
chilled-mirror accuracy of a
lab-standard hygrometer. And with
a nominal battery life of 12 hours,
the RHB-1500-C lets you collect for
the entire shift or spot-check your
processes for several days.
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RHB-1500-C1S2
shown smaller than
actual size.
Specifications
Measurement
Range (Dew/Frost Point):
2-Stage (S2):
-40 to 50°C (-40 to 122°F)
3-Stage (S3):
-60 to 50°C (-76 to 122°F)
Accuracy (Dew/Frost Point):
±0.25°C (0.45°F)
Functionality
Power/Charger: 115 to 230 Vac,
50 to 600 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" tall; 8-digit alphanumeric
Alarm:
Visual: Flashing “ALARM” message
Relay: 1 form “C”, non-latching; 10 A @ 240 Vac,
8 A @ 24 Vdc,
Physical
Dimensions: 37.5 H x 46 W x 18 cm D (14.75 x 18 x 7")
Weight: 11 kg (24 lb)
Enclosure: Plastic carrying case
* Unit requires a pump for non-pressurized systems.
1
⁄2 HP @ 240 Vac
0.5 to 5 SCFH air
flow controller
included.
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 Visual Alarms
U 4 to 20 mA (or 0 to 5 Vdc) Analog Output
U Microprocessor-Controlled
U 115/230 Vac Battery Charger
H
u
To Order
Model No. Description
RHB-1500-C1S2 Battery powered, 2-stage chill mirror
RHB-1500-C1S2-RHB-ATP Battery powered, 2-stage chill mirror and temperature probe with 3 m (10') cable
RHB-1500-C1DS2R Battery powered, 2-stage remote chill mirror
RHB-1500-C1DS2R-RHB-ATP Battery powered, 2-stage remote chill mirror and temperature probe with 3 m (10') cable
RHB-1500-C1S2L Line powered, 2-stage chill mirror
RHB-1500-C1S2L-RHB-ATP Line powered, 2-stage chill mirror and temperature probe with 3 m (10') cable
RHB-1500-C2-3 Line powered, 3-stage chill mirror
RHB-1500-C2-3-RHB-ATP Line powered, 3-stage chill mirror and temperature probe with 3 m (10') cable
RHB-C2-DS2 Line powered, 2-stage remote chill mirror
RHB-C2-DS2-RHB-ATP Line powered, 2-stage remote chill mirror and temperature probe with 3 m (10') cable
Comes complete with operator’s manual, SCFH air flow controller and NIST certificate.
Ordering Example: RHB-1500-C1S2, battery-powered hygrometer with 2-stage chill mirror.
Hu-56
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