Kele K-O2, Руководство пользователя, Страница: 4 / 16

K-O2 Oxygen Sensor
5/20/2022 Kele, Inc. • 3300 Brother Blvd. • Memphis, TN 38133 Page 2
www.kele.com
1 S
PECIFICATIONS
Mechanical
Chassis Construction
Industrial strength, 18 Ga. Gray powder-coated steel. Pad-lockable
hinged or screw-on cover style available.
Weight 2.0 lbs
Operating Temperature 4 to 40°C
Operating Humidity 15 – 90 %RH, non-condensing
Storage Temperature
-20 to 20°C (to minimize sensor degradation)
Case Dimensions (H x W x D)
K-O2-Hx : 6.4” x 5.9” x 2.4” (163.5 x 150.8 x 60.7 mm)
K-O2-Sx : 6.3” x 5.8” x 2.1” (160.0 x 147.3 x 52.0 mm)
Sensor Vents
Natural ventilation through 18, 0.1” (2.54 mm) diameter vents
External Indicators Tri-color LED indicates operational status of sensor.
Knockouts 4 trade ½” knockouts (1 per side)
Table 3: mechanical Specifications
Electrical
Operating Power Voltage 14 – 30 VAC (RMS) or DC
Isolated power supply; separate transformer not required.
Power Consumption
< 5W
Control Relays
2 separate SPDT line-voltage-capable relays for
warning/ventilation and alarm outputs.
UL-rated: 10 Amps max at 120/277 VAC or 30 VDC. ( E43203)
Concentration Reporting Output
Isolated, powered 4 – 20 mA current loop output.
4 mA output => 0 % concentration. 20 mA => 25%
Maximum loop resistance: 510Ω
Termination Pluggable screw-terminals for use with 12 AWG or thinner wire
Table 4: Electrical Specifications
Oxygen Sensor (O2)
Sensor Type Galvanic cell
Measurement Range 0 – 25% (by volume)
Analog Output Range 4-20mA (corresponds to 0 to 25%)
Accuracy ±0.3% O
2
(typical after calibration)
Calibration Interval
6 Months (to maintain specified accuracy)
Sensor Life
K-O2-x5 : 5 years (typical)
K-O2-x10 : 10 years (typical)
Recommended calibrated Field-
Replaceable Sensor
KMOD-O2-25 (5 years) or KMOD-O2-50 (10 years)
Calibration Kit UCK-1 kit
Calibration gases
Span (20.9% oxygen, balance nitrogen):
Kele PN:GAS-O2-20.9
Zero (100% nitrogen) Kele PN: GAS-N2
Table 5:
Oxygen Sensor Specifications