Krohn-Hite Model 4720 Calibrator System

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Watt Calibration System

Features
These are extremely flexible instruments at a low cost.

AS A SYSTEM:

	Direct calibration of Watt meters
	Calibration and simulation of watt transducers.
	Calibration by simulated stimuli (inputs) to Data Logging Systems, Process Control Systems and Power Monitoring Systems.
	Controlled, variable simulation of inductive and capacitive loading.

AS INDEPENDENT INSTRUMENTS:

	Direct calibration of ac voltage and ac current for DMMs
	DVMs
	Analog meters and shunts
	Dynamometers
	Amplifiers
	Converters
	Filters
	Relay coils

SYSTEM SPECIFICATIONS

AC Voltage: 10mVac to 1200Vac resolved to 1ppm.
AC Current (two models): Model 3200, 0.1mA ac to 11A ac in 5 ranges, resolved to 1part per 10 thousand; Model 3210, 1A ac to 110A ac in 2 ranges, resolved to 1 part per thousand.
Phase Angle: (Power Factor) 0°to ±299° i.e., operates in all 4 quadrants.
System Accuracy: ±0.1%. This is the RSS of the inaccuracies of the system’s individual instrument specifications.
Selectable Frequencies: 50Hz, 60Hz and 400Hz.

Specifications and prices are subject to change without notice.

For complete system specifications go to the data sheets for the following units
Model 4601 AC Voltage Calibrator/Reference
Model 3200C 0.1mA ac Current (Transductance) Amplifier
or
Model 3210C 100Aac Current (Transductance) Amplifier
Model 4032
Reference to drive the Models 3200C and 3210C
Model PAS-300 Phase Angle Control to phase lock the instruments and to set desired phase angle,
i.e., to introduce power factor.
The interconnecting cables, between instruments, are included. Heavy duty, panel board plugs for
Model 3210 are included.

15 Jonathan Drive, Unit 4, Brockton, MA 02301-5566 U.S.A.
Tel: (508) 580-1660; Fax: (508) 583-8989; info@krohn-hite.com