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Dorrough 280 - Power Connections

Dorrough 280
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10 Installation
Peak Hold Switch Connections
Two methods of Peak Hold function control are available. If you wish to
have the option of selecting either normal operation (peak hold for 3
seconds), indefinite peak hold, or peak hold disabled, the three position
toggle switch supplied (or its electrical equivalence) must be installed. Refer
to Figure 2-3 for switch wiring details.
For applications where only one of these three functions is needed, the
desired function can be “hardwired” by moving a jumper on the meter’s
main circuit board. Refer to Section 4 for jumper location and selection
details.
Figure 2-3. Peak Hold Switch Connection
Power Connections
The DLM may be powered using the AC adapter provided, or in the case of
several DLMs, from a common high capacity power supply (customer
supplied).
Woodland Hills, Ca 91364
Made in U.S.A.
PEAK
HOLD
POWER
7 – 12 VDC
BUFFERED
DIGITAL OUT
GROUND
DIGITAL IN
GROUND
V–
V+
SPDT
Three Position
Permanent
Peak Hold
Auto Reset
Peak Hold
Peak Hold
Disabled