741B/743B
Users Manual
12
Operating Features
Input and Output Jacks
Figure 5 shows the calibrator input and output jacks.
Table 2 explains their use.
Table 2. Input/Output Jacks and Connectors
No. Name Description
1 Battery Eliminator jack Jack for the Model BE9005 Battery Eliminator. Use the battery eliminator for bench-top
applications where ac line power is available. This input does not charge the battery.
2 wSERIAL PORT
(743B Only)
Connects the calibrator to an RS-232 serial port on a personal computer.
3 Pressure module
connector
Connects the calibrator to a pressure module.
4 TC input/output Jack for measuring or simulating thermocouples. This jack accepts a miniature
polarized thermocouple plug with flat, in-line blades spaced 7.9 mm (0.312 in) center to
center.
5, 6 w MEAS V jacks Input jacks for measuring voltage, frequency, or three- or four-wire RTDs (Resistance
Temperature Detectors).
7, 8 w SOURCE mA,
MEAS mA Ω RTD
jacks
Jacks for sourcing or measuring current, measuring resistance and RTDs, and
supplying loop power.
9,10 w SOURCE V Ω
RTD jacks
Output jacks for sourcing voltage, resistance, frequency, and for simulating RTDs.
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