85
Fig. 18: Internal Relay Board
Internal Relay Setup:
The internal relay option comes with an interface cable between the Digital Output
Terminal TB4 on main board and the internal relay board for relay control. A second
twelve conductor cable provides the relay output and exits the meter through a
watertight. Leave this cable in place when configuring the outputs and refer to the output
cable color code table. In the field, this cable will most likely be replaced. Ensure that
the replacement cable is rated well above the maximum current required by the
electrical device to ensure safe operation and the cable diameter is between 0.16” and
0.31” for proper watertight sealing. The Scale does not provide the AC or DC power to
run external devices. Ensure your customer has made provisions to supply the
necessary power.
Each relay has a three-position output that provides a Common, Normally Open and
Normally Closed terminal. Keep in mind that the Normally Closed terminal is only
available for use with a mechanical relay. Solid State relays can operate as Normally
Closed through software configuration only. The following table shows the color codes
and terminal connections for the included cable.
Relay Specifications:
6VDC Mechanical Relay, 10A 250VAC / 30VDC. Doran part number: EXOPT195
AC Solid State Relay, 2A 100-240VAC. Doran part number: EXOPT109
DC Solid State Relay, 2A 5-48VDC. Doran part number: EXOPT110
Содержание 2200 Series
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