Dwyer 4380 - Manual (Page 3)

Output Programming
The output selection and ranging is performed through two switch banks. Refer to the instructions below
and the illustration in Figure 4 for details.
MODE SELECT SWITCH BANK
1. For VOLTAGE OUTPUT turn switches one and two ON and turn switch three OFF.
2. For CURRENT OUTPUT turn switches one and two OFF and turn switch three ON.
3. For UNIPOLAR OUTPUT turn switch four ON and turn switch five OFF.
4. For BIPOLAR OUTPUT turn switch four OFF and turn switch five ON.
5. For ZERO BASED OUTPUT (eg. 0 to 20 mA) turn switch six ON and turn switch seven OFF.
6. For ZERO SUPPRESSION (eg. 4 to 20 mA) turn switch six OFF and turn switch seven ON. If
BIPOLAR or REVERSE ACTION is selected, do not use the ZERO SUPPRESSION switch. Use the
ZERO adjustment to suppress the output.
7. Switch eight is always OFF. (It is not connected to any circuitry. If switch eight is turned ON there is
no effect on the operation of the device).
RANGE SELECT SWITCH BANK
Turn ON the switch for the scale desired. All other switches should be OFF. If BI-POLAR INPUT is
selected, the scale will be MINUS-SELECTION to PLUS-SELECTION (eg. -10 TO ±10 VDC).
WARNING: Do not attempt to operate or calibrate this device with the cover removed.
Potentially lethal voltage is present on some of the internal components. Make sure that
the cover is firmly in place before plugging into the socket.
Figure 4: Output selection and range switches