conductivity - Omega Engineering

DISSOLVED OXYGEN
Operating Modes:
Control: Settings for failsafe
on/off, high/low phasing, setpoint,
deadband, on delay, and off delay
Alarm: Settings for failsafe on/off,
high alarm point, high alarm point
deadband, low alarm point, low
alarm point deadband, on delay,
and off delay
Outputs:
Analog: Two separate outputs
each. Isolated 0 to 5 Vdc
(1 megohm min. load) and isolated
4 to 20 mA (900 ohms max. load).
Selectable and scalable for D.O.
and/or temperature
Temperature Compensation:
Automatic, 0 to 50°C (32 to 122°F)
Sensor-to-Analyzer Distance:
305 m (1000') maximum
Power Requirements: 105 to 250
Vac, 50/60 Hz. (20 Va max.)
D.O. Calibration Methods: Seven
methods using sample or water and
using either known or saturated
values or air
Logbook: Up to 100 system events
can be stored
Analyzer Performance
(Electrical, Analog Outputs)
Accuracy: 0.10% of span
Sensitivity: 0.05% of span
Stability: 0.05% of span per 24 hours,
non-cumulative
Non-linearity: 0.10% of span
Repeatability: 0.05% of span or better
Temperature Drift: Zero: 0.02% of span
per °C;Span: 0.02% of span per °C
Enclosure: NEMA-4X; polycarbonate face
panel, epoxy-coated high-quality cast
aluminum door and case with four 13 mm
( 1 ⁄2") conduit holes, nylon mounting bracket,
and stainless steel hardware
Mounting Configurations: Panel, surface,
and pipe (horizontal and vertical) mounting
Net Weight: 2.5 kg (5.5 lb), approximately
Dimensions (Analyzer):
192 W x 144 H x 175 mm D
(7.56 x 5.67 x 6.9")
Panel Cutout: 180 x 137 mm (7.1 x 5.4")
D.O. Sensor
Wetted Materials: Noryl 316 stainless steel,
nylon, PVC, Viton ® , Teflon ® , and Ryton
Electrode Material: Gold cathode, silver
anode, and silver reference
Temperature Range: 0 to 50°C
(32 to 122°F)
Maximum Flow Rate: 0.016'
(5 millimeters) per second
Maximum Pressure: 145 psi (10 bar)
Measuring Range: 0.00 to 40 ppm
DOCN-72 Dissolved
Oxygen Analyzer
$1220
DOE-72 Sensor
$715
Response Time (@20°C/168°F): 180
seconds to 90% of value upon step change
Membrane Thickness: 50 microns
Sensor Cable: Integral 15' (4.6 m) long
cable, terminated with MS-type
quick-disconnect plug
Measuring Principle: Potentiostatic,
polarographic three-electrode system
Probe Diameter: 37.85 mm (1.49")
Dimensions
(Sensor with adaptor hardware):
DOE-72: 48.3 D x 222.3 mm L (1.90 x 8.75")
DOE-72F: 56.4 D x 196 mm L (2.22 x 7.7")
To Order (Specify Model No.)
Order Analyzer and Sensor Separately
Model No. Price Description
DOCN-72 † $1220 Dissolved oxygen analyzer for use with DOE-72 sensor
DOE-72 715 Dissolved oxygen sensor with 4.5 m (15') cable, replaceable cartridge and 12 disposable
calibration bags
DOE-72F 715 Same as DOE-72, with adaptor for DOE-72-UMH union mounting hardware
DOE-72-RC 95 Replace cartridge with semi-permeable membrane, electrolyte, electrodes and
O-Ring
DOE-72-OR 230 Replacement O-Ring for DOE-72-RC cartridge
DOE-72-SM 115 Submersion mounting hardware (1 1 ⁄2" dia., 5' long PVC pipe with junction box)
DOE-72-HM 230 Handrail mounting hardware 1 1 ⁄2" dia., 7.5' long PVC pipe swivel/pivot pipe clamp
assembly and junction box
DOE-72-FA 340 Flotation assembly (includes handrail mounting hardware plus ball float assembly)
DOE-72-UMH 60 Flow-through union hardware for DOE-72F, PVC 2" “Y” tee with socket weld
connections and union
CDE-3600-CAB-(*) 1.80/ft Six-conductor cable plus shield. Specify length in feet (25 ft. minimum).
† For “-CE” approved version, order DOCN-72-CE, $1320. *Specify length in feet
Ordering Example: DOCN-72-CE, CE approved version of dissolved oxygen analyzer, and DOE-72, sensor, and
DOE-72-SM, submersion mounting hardware $1320 + 715 + 115 = $2150
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For the complete selection of Dissolved
Oxygen products, refer to The Green Book ® 31