Martel Electronics 3001 - Manual (Page 9)

2.2 Primary Input/Output Terminals
Figure 2 describes the primary input/output terminals in detail. The display and controls
for these terminals are described in the next section.
Figure 2 - Primary Input/Output Terminals
Item Name Description
1 VOLTS DC voltage output terminals. See notes 1 and 2 below.
2 mA DC current output terminals. See notes 1 and 2 below.
3 RTD/O OUTPUT Two wire RTD and Ohms output terminals. See notes 1
and 2 below.
4 TC INPUT/OUTPUT Thermocouple input and output terminals. These termi-
nals accept a miniature polarized thermocouple plug with
flat in-line blades spaced 7.9 mm (0.312 in.) center to cen-
ter.
5 4W RTD/O INPUT Four wire RTD and Ohms input terminals. See notes 1
and 3 below.
6 Pressure module input connector.
Note 1: These terminal binding posts are made of a special copper alloy to reduce thermal
EMF's. They support the use of either discreet wires or standard banana plugs, and the
HI/LO pairs are spaced for standard dual banana plugs.
Note 2: Caution. Do not exceed a maximum of 100 volts to chassis ground.
Note 3: Caution. Do not exceed a maximum of 20 volts to chassis ground.
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