Hobo RXW-SPER Series Manual

HOBO® RX Wireless Sensor Network
RXW State/Pulse/Event/Runtime Sensor (RXW-SPER-xxx) Manual
RXW State/Pulse/
Event/Runtime Sensor
Models:
• RXW-SPER-900 (US)
• RXW-SPER-868 (Europe)
• RXW-SPER-922
(Australia/NZ)
Items Included:
• Cable ties
22438-1
This sensor measures state changes, electronic pulses, and mechanical or electrical contact
closures from external sensing devices. It is designed to work with the HOBO RX Wireless
Sensor Network in which data is transmitted wirelessly from the sensor mote across the
network to the RX3000 station and then uploaded to HOBOlink® web-based software. With
HOBOlink, you can monitor sensor readings, view graphs, set up alarms, download data, and
more.

Specifications

Sensor
External Contact Input
Range
Maximum Pulse Frequency
Maximum State, Event,
Runtime Frequency
Pulse, Event Lockout Time
Solid State Switch Closure
Internal Weak Pull-Up
Input Impedance
Wireless Mote
Operating Temperature
Range
Radio Power
Transmission Range
Wireless Data Standard
Radio Operating
Frequencies
Modulation Employed
Data Rate
Duty Cycle
Maximum Number of
Motes
Battery Type/
Power Source
Battery Life
Dimensions
Weight
Materials
Environmental Rating
Compliance Marks
Electronic solid state switch closure or logic driven voltage output
0 to 2.5 V DC
50 Hz
1 Hz
0 to 1 second in 100 ms steps
Input Low: < 10 KΩ; Input High: > 500 KΩ
100 KΩ
Solid state switch closure: 100 KΩ pull up
-25° to 60°C (-13° to 140°F) with rechargeable batteries
-40 to 70°C (-40 to 158°F) with lithium batteries
12.6 mW (+11 dBm) non-adjustable
At least 304.8 m (1,000 ft) line of sight at 1.8 m (6 ft) from the ground,
457.2 m (1,500 ft) typical
IEEE 802.15.4
RXW-SPER-900: 904–924 MHz
RXW-SPER-868: 866.5 MHz
RXW-SPER-922: 916–924 MHz
OQPSK (Offset Quadrature Phase Shift Keying)
Up to 250 kbps, non-adjustable
<1%
50 motes per one RX Wireless Sensor Network
Two AA 1.2 V rechargeable NiMH batteries powered by built-in solar panel
or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40
to 158°F)
With NiMH batteries: Typical 3–5 years when operated in the temperature
range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see
Deployment and Mounting), operation outside this range will reduce the
battery service life
With lithium batteries: 1 year, typical use
Cable length: 2 m (6.56 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
223 g (7.87 oz)
PCPBT, silicone rubber seal
Sensor and cable: Immersion in water up to 50°C (122°F) for 1 year
Mote: IP67
RXW-SPER-900: See last page
RXW-SPER-868: The CE Marking identifies this product as
complying with all relevant directives in the European Union (EU).
RXW-SPER-922: See last page