Pulse Input Adapters (Part # S-UCC/D-M006)
for use with HOBO
®
H21 and H22 Series Data Loggers
© 2007 Onset Computer Corporation
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 data loggers. The adapter has a
plug-in modular connector that allows it to be added easily to
these loggers. Two versions are available: one for mechanical
contact closures (ideal for connecting tipping-bucket rain
gauges to HOBO H21 series loggers), and one for solid-state
electronic switches (used for connecting compatible pulse
output sensors to HOBO H22 series loggers).
Inside this package
•
Pulse Input Adapter
•
2 wire nuts
Pulse Input Adapter
Specification
S-UCC-M006
for Electronic Switches
S-UCD-M006
for Contact Closures
Maximum Input Frequency
120 Hz (120 pulses per second)
2 Hz (2 pulses per second)
Measurement Range
0 – 65,533 pulses per logging interval
Resolution
1 pulse
Lockout time
45 µs ± 10%
327 ms ± 10%
Recommended Input Type
Electronic solid state switch closure or
CMOS-level digital output (example:
FET, opto-FET or open collector)
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 K
Ω
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 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)
Part Number
S-UCC-M006 S-UCD-M006
†
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.
Part #: MAN-S-UCC/D
Doc #: 11805-A
