gohastings.com POWERPOD 400 - Manual (Page 36)

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Setting the Zero & Span
on the
Power Pod -400 Power Supply/Totalizer
All procedures outlined in this document must be performed with the power supply turned on and
warmed up for at least one hour.
All procedures outlined in this document must be performed with NO transducers connected to the
channel being adjusted
* .
You CANNOT successfully zero a channel without, first, supplying zero volts or four milliamps to
the meter input for that channel.
You CANNOT successfully span a channel without, first, supplying the meter input for that channel
with its appropriate span voltage or span current.
14.1 Zeroing Unit (Voltage Range).
The following instructions explain how to short a given channel’s input signal to ground (0 volts DC)
and set the display to read zero at this voltage.
Locate the 15-pin, ‘D’ type connector that corresponds to the channel to be zeroed.
J1 = Channel 1
J2 = Channel 2
J3 = Channel 3
J4 = Channel 4
Short pin 5 (signal common) to pin 6 (signal in).
Press MODE
Press 3
Press ENTER
Press 1, 2, 3 or 4, depending on which channel is to be zeroed.
Press ENTER
Press 7
Press ENTER
Press 1
Press ENTER
Press ENTER again
You have just told a channel to display zero when the input signal is zero volts
! .
14.0 Appendix D