Pulse Input - Contact Closure Sensor
Pulse Input - Contact Closure Sensor
Overview
The HOBOnet Wireless Pulse Input Sensor connects to sensors with pulse output. This sensor is compatible with contact closures, such as tipping-bucket rain gauges or reed switches. HOBOnet Wireless Sensors communicate data directly to the HOBO RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.
Highlighted Features
Sensor Features
- Maximum input frequency 2 Hz (2 pulses per second)
- Mechanical contact closure
Wireless Features
- 900 MHz wireless mesh self-healing technology
- 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
- Up to 50 wireless sensors per RX3000
- Simple button-push to join the HOBOnet wireless network
- Onboard memory to ensure no data loss
- Powered by rechargeable AA batteries and built-in solar panel
In what environment does this sensor operate?
This sensor operates in indoor and outdoor environments.
What measurements does this sensor support?
The RXW-UCD-xxx sensor supports the following measurement: Pulse Input
The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available
Sensor | RXW-UCD-xxx For Contact Closures |
Measurement Input Frequency | 2 Hz (2 pulses per second) |
Measurement Range | 0-65,533 pulses per logging interval |
Resolution | 1 pulse |
Lockout Time | 327 ms ±10% |
Recommended Input Type | Mechanical contact closure (example: reed switch in a tipping-bucket rain gauge) |
Preferred Switch State* | Normally open |
Edge Detection | Falling edge, Schmitt Trigger buffer (logic levels: low =2.7 V) |
Minimum Pulse Width | 1 ms |
Input/Output Impedance | 100 K? |
Open Circuit Input Voltage | 3.3 V |
Maximum Input Voltage | 3.6 V |
User Connection | 24 AWG wires, 2 leads: white(+), black(-) |
Wireless Mote | |
Operating Temperature Range | -25° to 60°C (-13° to 140°F) with rechargeable batteries -40 to 70°C (-40 to 158°F) with lithium batteries |
Radio Power | 12.6 mW (+11 dBm) non-adjustable |
Transmission Range | Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high |
Wireless Data Standard | IEEE 802.15.4 |
Radio Operating Frequencies | RXW-UCC-900 and RXW-UCD-900: 904-924 MHz RXW-UCC-868 and RXW-UCD-868: 866.5 MHz RXW-UCC-922 and RXW-UCD-922: 916-924 MHz |
Modulation Employed | OQPSK (Offset Quadrature Phase Shift Keying) |
Data Rate | Up to 250 kbps, non-adjustable |
Duty Cycle | <1% |
Maximum Number of Motes | 50 motes per one RX Wireless Sensor Network |
Battery Type/ Power Source |
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) |
Battery Life | 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 |
Memory | 16 MB |
Dimensions | Cable length: 6.5 m (21.3 ft.) Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches) |
Weight | Cable: 250 g (9 oz) Mote: 223 g (7.87 oz) |
Materials | Mote: PCPBT, silicone rubber seal |
Environmental Rating | Mote: IP67, NEMA 6 |
Compliance Marks | RXW-UCD-900 |
RXW-UCD-868 | |
RXW-UCD-922 |
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