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Monroe Electronics Electrostatic Voltmeter - Isoprobe® - model 244A User Manual

Page 9

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D. SYSTEM GROUNDING:

The instrument is normally grounded via power cord and the potential measured is
referenced to ground. A rear panel ground connection is provided.

E. OUTPUT CIRCUITRY:

The output connector is a BNC connector mounted to the rear panel. The output
voltage is the measured voltage divided by 1000. Range is ±3V.

F. REMOTE CONTROL (SLAVE CONTROL):

Provision is made for remote operation via J204 located on the rear panel.

External connections can be made as follows:

1. Parallel connect the inner and outer connection of the slave plugs of all

units.

2. Connect any solid state switch or relay capable of switching 30V DC and

sinking n x 10 mA DC, where n is the number of units to be controlled.

NOTE: Low side of switch must be system GRD.

G. MULTIPLE-UNIT. MASTER/SLAVE CONNECTION:

The 244A is designed to facilitate control of the standby/operate mode of slave units
by a master unit.

External connections are made as follows:

1. Connect all slave units (units to be controlled) as indicated in Section F.

2. Terminate the center conductor of the slave plug to the center conductor

of the master, and outer conductor with the outer connection.