DPM-500 Analog Input Meter Instruction Manual
12
Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 6. The COM
(common) terminal is the return for the 4-20 mA and the
10 V input signals.
Current (mA) Connections
The following figures show examples of current connections.
There are no switches or jumpers to set up for current inputs. Setup and programming is performed
through the front panel buttons.
Figure 8. Transmitters Powered by Internal Supply
Figure 9. Transmitter Powered by Ext. Supply or Self-Powered
The current input is protected against current overload by a resettable fuse. The display may or may not
show a fault condition depending on the nature of the overload.
The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself
when the fault condition is removed.
Voltage (V) Connections
The following figures show examples of voltage connections.
There are no switches or jumpers to set up for voltage inputs. Setup and programming is performed
through the front panel buttons.
Figure 10. Voltage Input Connections
The meter is capable of accepting any voltage from -10 VDC to +10 VDC.
