Measurement Computing Digital HS - Manual (Page 11)

1. The line voltage selection switch (S7) is located below the main power suply
transformer (T2). Insert the tip of a small screwdriver into the slot of the switch
and move the switch so the desired line voltage appears on the switch.
2. Install a power line fuse appropriate for the line voltage. The fuse is located below
the internal line voltage switch (S7). Gently pull upward on the plastic fuse
housing. Remove the entire housing with the fuse inside. Select a fuse with the
proper rating (see table below).
Line Voltage Fuse Type
105-125V 1/2A 250V, Slo Blo, 3AG
210-250V 1/4A 250V, Slo Blo, 3AG
A fuse with a rating higher than that specified
may cause damage to the instrument. If the
instrument repeatedly blows fuses, contact the
factory.
3. Open the fuse housing by pushing up on the tab on the bottom of the housing.
4. Replace the fuse and close the housing. Insert the fuse housing into the fuse
holder.
5. Make note of the new voltage setting for later reference and carefully re-assemble
the unit.
2.2.2.2 Input Setup
Several features are available for the input port. These features are selected by
internal switch S2, labeled INPUT SETUP. The factory defaults for these feature
selections are shown on the next page.
The features include:
SRQ On Input Port Full (Serial Poll Feature)
SRQ On Status Bit 1 - SB1 (Serial Poll Feature)
SRQ On Status Bit 2 - SB2 (Serial Poll Feature)
ist Enable on Input Port Full (Parallel Poll Feature)
Polarity Selection for Input Data, iEND, iDAV and iBusy Lines