HP 6627A - Manual (Page 59)

Output Connections and Operating Information 59
Current All series specifications referring to current are the same as for a single output except for CC load
effect, CC load cross regulation, CC source effect, and CC short term drift which are twice the
current programming accuracy (including the percentage portion).
Load Transient
Recovery Time Load transient recovery time is the same to within approximately twice the voltage setting band since
the output impedances of the series combination add together.