Onset Pulse Input Adapter - Contact Closure - S-UCD-M001

Product Description

Onset Pulse Input Adapter - Contact Closure - S-UCD-M001

Overview
The Contact Closure Pulse Input Adapter connects sensors with pulse outputs to data loggers with smart-sensor inputs. This smart sensor is compatible with contact closures, such as tipping-bucket rain gauges or reed switches with a maximum input frequency of 2 Hz (2 pulses per second), and a preferred switch-type of normally-open. See how the pulse recorder works.

Highlighted Features

Plug-n-play adapter for pulse output sensors
Automatically recognized by H21, H22, U30, and ZW data loggers
Compatible with contact closures, such as tipping-bucket rain gauges or reed switches with a maximum input frequency of 2 Hz (2 pulses per second)

In what environment does this sensor operate?
This sensor operates in indoor and outdoor environments.

What measurements does this sensor support?
The S-UCD-M001 sensor supports the following measurements: Pulse Input and Water Flow

To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Maximum 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: Active low input Normally open

Edge Detection: Falling edge, Schmitt Trigger buffer (logic levels: low ‰¤ 0.6 V, high ‰¥ 2.7 V)

Minimum Pulse Width: 1 ms

Input/Output Impedance: 100 KΩ

Open Circuit Input Voltage: 3.3 V

Maximum Input Voltage: 3.6 V

User Connection: 24 AWG wires, 2 leads: white(+), black(-)

Operating Temperature Range: -40° to 75°C (-40° to 167°F)

Overall Cable Length: 1 m (3.3 ft.)

Housing: Weatherproof PVC housing protects input adapter electronics

Housing Dimensions: 14 x 0.95 cm (5.5 x 0.375 in.)

Weight: 310 g (11 oz.)

Bits per Sample: 16

Number of Data Channels: 1

Measurement Averaging Option: No (reports the number of pulses over the logging interval)