Campbell Scientific SDM-SW8A 8-channel switch closure input module - Warranty

Description

SDM-SW8A 8-channel  switch closure input  module - Great shape Warranty
This sale is for a
:
SDM-SW8A 8-channel  switch closure input  module - Great shape Warranty
Condition:
Used, excellent shape.
Warranty:
30 Day Warranty.
We pledge to offer the best service and warranty to all of our customers!  We are extending a 30 Day warranty on this item.  This is our way of saying thank you for allowing us to serve you.
Certification:
This is an genuine product from this manufacturer.
Web Information:
Detailed Description
The SDM-SW8A provides eight channels for connecting the sensors. Each channel is individually configured for single-pole double-throw (SPDT), single-pole single-throw (SPST), or voltage pulse measurements. Output options include counts, duty cycle, and state.
SDM Operation
The data logger enables individual modules through an addressing scheme; multiple SDMs (in any combination) can be connected to one data logger. We recommend a maximum of four SDM-SW8As be connected to a single data logger. After a module is enabled, it operates independently of the data logger until additional commands are received or results are transmitted.
Specifications
Measurement Types
Switch closure (SPDT, SPST), dc voltage pulse
Input Voltage Threshold
From below 0.9 to above 4.0 Vdc (±20 Vdc maximum)
Maximum Input Frequency
100 Hz (50% duty cycle)
Minimum Input Pulse Width
5 ms high, 5 ms low
Maximum Bounce Time
3 ms open without counting
Output Options
State, duty cycle, counts
Maximum Count/Port
65535
Internal Sampling Frequency
500 Hz
Watchdog Reset
Yes
Operating Temperature Range
-25° to +55°C
Operating Voltage Range
9.6 to 16 V
Typical Current Drain
3 mA quiescent
6 mA active (maximum)
Relative Humidity
0 to 90% RH (non-condensing)
Maximum Cable Length
6 m (20 ft) total to all SDM devices
Consult Campbell Scientific if longer lengths are necessary.
Dimensions
15.7 x 6.9 x 2.3 cm (6.2 x 2.7 x 0.9 in.)
Weight
0.23 kg (0.5 lb)