In-situ RDO PRO-X, Operator'S Manual, Page: 5 / 29

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Optical RDO PRO-X Dissolved Oxygen Probe Specifications
Optical RDO PRO-X Dissolved Oxygen Probe
Sensor Type Optical (luminescent) dissolved oxygen sensor
RDO PRO-X Probe
Range: 0 to 60 mg/L concentration
Accuracy: ±0.1 mg/L from 0 to 20 mg/L
±2% of reading from 20-60 mg/L
Resolution: 0.01 mg/L
Response time: T90 < 45 sec; T95 < 60 sec @ 25°C
Storage conditions: -5° to 60° C (23° to 140° F)
RDO Classic Cap
RDO-X Sensor Cap
RDO Fast Cap
Usage life: 2 years typical
Storage conditions: 1° to 60° C (33° to 140° F), in factory container
Temperature sensor
Range: 0° to 50° C (32° to 122° F)
Accuracy: ±0.1° C typical
Resolution: 0.01° C
Transmitter/local display Optional, or use with Con TROLL PRO System
Communications options Modbus/RS485, 4-20 mA, SDI-12
Max. power consumption 50 mA at 12 VDC
Measure current 6 mA typical at 24 VDC
Idle current (no measurement or
communication)
160 µA typical at 24 VDC
Maximum cable length Up to 1,219 m (4,000 ft) (for Modbus and 4-20 mA) or up to 60.96 (200 ft) for SDI-12
Cable options
10 m fixed stripped-and-tinned; Twist-lock connector with user-selectable cable
length
Internal mounting thread 1¼ - 11 ½ NPT
IP rating IP-67 with cap off, IP-68 with cap installed
Compliance Heavy industrial, IEC 61000-6-2:2005
Salinity compensation Fixed or real-time capable (using controller)
Barometric pressure Fixed or real-time capable (using controller)
Maximum pressure 150 psi from 0 to 50° C; 300 psi @ 25° C
Warranty
Probe: 3 years from date of shipment
RDO-X Sensor Cap: 2 years in typical applications
Methods
Standard Methods 4500-O; In-Situ Methods 1002-8-2009,1003-8-2009, 1004-8-2009
(EPA approved)