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HOBO - Contact Closure Pulse Input Adaptors

The Contact Closure Pulse Input Adaptor connects sensors with pulse outputs to 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

Part Number: S-UCD-M001 and S-UCD-M006

Manufacturer:

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Overview
Specifications

Easy to add to HOBO loggers and stations

The Contact Closure Pulse Input Adaptor connects sensors with pulse outputs to 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

The pulse input adapters are used to log the number of switch closures per interval and are designed to work with smart sensor-compatible HOBO® loggers and stations. The adapter has a plug-in modular connector that allows it to be added easily to these devices.

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)

Technical Information
Maximum Input Frequency	2 Hz (2 pulses per second)
Measurememnt 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 ≤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	6.5 m (21.3 ft.) or 1.57 m (5.1 ft.)
Length of Smart Sensor Cable**	50 cm (1.6 ft.)
Housing	Weatherproof Xenoy housing protects input adapter electronics
Housing Dimensions	12.7 x 2.9 cm (5 x 1.13 in.)
Weight	S-UCx-M001: 114 g (4 oz.); S-UCx-M006: 250 g (9 oz)
Bits per Sample	16
Number of Data Channels	1
Measurement Averaging Option	No (reports the number of pulses over the logging interval)
CE	The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

* For maximum battery life, the pulse input adapters should be used with their preferred switch type. The adapters will
work with active high inputs (S-UCC) and normally closed switches (S-UCD), but battery life will not be optimized.
** A single HOBO station can accommodate 15 data channels and up to 100 m (328 ft) of smart sensor cable (the digital
communications portion of the sensor cables).

Easy to add to HOBO loggers and stations

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)