6
ControlNet NetChecker
Rockwell Automation Publication 1788-UM001B-EN-P - August 2012
Table 1 - NetChecker Specifications
Attribute
1788-CHNHKR
Dimensions
152 x 83 x 33.5 mm (BNC connector not included)
164 x 83 33.5 mm (BNC connector included)
Weight (with batteries)
250 grams (8.18 oz.)
Environmental
Operating Temperature: 0…50 °C (32…122 °F)
Storage Temperature: -40…85 °C (-40…185 °F)
Slide switch SW1
3-position power switch:
•
OFF disconnects the batteries.
•
ON
turns on the tool permanently.
•
Push ON provides momentary power.
Push switch SW2
Momentary switch to turn on the instrument when SW1 is in the Push ON position
.
Slide switch SW3
4-position function switch:
•
Positions L, M, H select the Diagnostic mode and low, medium and high thresholds.
•
The rightmost position selects the Bargraph mode.
BNC connector
Signal input. Connects to the network trunk cable via a standard tap or the provided cable
and BNC T. The NetChecker is electrically isolated from the network by a transformer.
Display
8 bi-color (Red/Green) status indicators:
•
Status indicators numbered 1 to 7 are dual-function for Diagnostic or Bargraph modes.
•
Status indicators named TRAFFIC also indicates a low battery condition.
Thumbwheel switches
2-digit decimal switches for entering the address of the Node to find (0 to 99).
DC jack
External DC power from AC adapter (nominal 5V DC, max 5.5V @ 0.25A). Jack should have
3.5 mm external diameter (+) and 1.35 mm internal diameter (-).
Oscilloscope connector
3-pin Phoenix connector with Network, Ground, and Trigger signals.
Buzzer
Piezo Buzzer provides an audible indication of detected faults.
Batteries
2 alkaline batteries 1.5V AA/LR6 size located in the battery compartment on the back of the
tool. Batteries are provided uninstalled with the tool. A screwdriver is required to install or
replace the batteries.
Battery life
6 hours continuous use
Accessories
•
3-pin plug connector to fit in the oscilloscope output
•
BNC T connector
•
BNC male to BNC female coaxial cable (1 meter long)
•
User Manual 1788-UM001
Agency certification (when product
or packaging is so marked)
•
EN 55011, Radiated Emission Class A
•
ENV 50204, Radiated immunity from digital radio
•
IEC 1000-4-2, ESD susceptibility
•
IEC 1000-4-3, Radiated immunity
•
IEC 1000-4-4, EFT/B immunity
•
IEC 1000-4-6, conducted RF immunity
