Handy Calibrator DIGISTANT®
Voltage/Current Calibrator Model 4411

• Voltage range 10 μV to 30.00 V
• Current range 10 μV to 24.00 mA
• Both signal source and measurement functions
• 20 mA SINK function
• Simple operation, easy to use
• Lightweight, compact body

Applcations

The model 4411 universal precision calibrator source is ideal for testing and calibrating all measuring instruments and control devices within its range of capacity which operate on the principle of current and voltage.

The portable calibration device is well-suited for operation in the field, as a bench device, at the test stand, in the factory, and in the laboratory. The wide range of applications in the measuring technique includes for example the calibration of pointer and digital instruments or recorders, the simulation of thermocouples; the precise plotting of components characteristics and many other services.

The calibration source has been developed with special attention paid to the needs of control engineering. The direct input of measuring values through a keyboard and the possibility of passing through a curved control system, e.g. of 4-20 mA, by means of a staircase function - all these features make it very easy to cope with the measuring tasks in this range.

The well-arranged keyboard and display and the automatic input test system allow easy and safe operation of the device.

Description

The operation is made by UP/DOWN keys for each digit, measuring range and measuring functions are placed over rotary switches and/or slide switches.

The DIGISTANT® 4411 generates and measures voltage up to 30 V DC and current up to 24 mA DC.

The output level can be changed between 4--->8--->12--->16 --->20 mA signals by one touch for the 4-20 mA DC output, and between 1--->2--->3--->4--->5 V DC signals for the 1-5 V DC output, for efficient calibration work.

The "20 mA SILK" function absorbs the voltage supplied from an external power supply to its H terminal and simulates a twowire transmitter, ideal for loop checks.

The "sweep function" increases and decreases the output level to the present level at a constant rate for the selected sweep time (16 or 32 secounds). The sweep function and sweep time are set by the internal dip switches.

The complete protector protects the circuit against shortcircuiting of the voltage output terminals and pilication of voltage (of up to 30 V) to the output terminals, etc. due to misconnection.