Clarke-Hess 2330 V-A-W Meter

The Clarke-Hess Communication Research 2330 Sampling V-A-W (Volt-Ampere-Watt) Meter is a precision, high accuracy, auto-ranging instrument which simultaneously measures and displays true rms Voltage, true rms Current and true mean Power over a frequency range from dc to more than 600kHz. Full scale Current and Voltage inputs are typically measured within ±0.1% of the reading in amplitude to at least 400kHz. The corresponding Power is typically measured to within ±0.1% of the input Volt-Amperes to 200kHz and to within ±0.2% of the input Volt-Amperes to 400kHz for loads of any Power Factor.

In addition to the rms Voltage, rms Current, and mean square Power the Model 2330 also simultaneously measures the peak Voltage, the peak Current and the Frequency and calculates the Volt-Ampere product, the Power Factor and the Energy accumulated over a period of time from 1-99 hours. These functions may be displayed or may be read over the IEEE-488.2 interface.

The Model 2330 allows broadband and high accuracy measure- ments of both sinusoidal and highly distorted wave shapes. The Current, Voltage, Power, and Power Factor accuracies to 400kHz of the Model 2330 far exceed any other sampling Volt-Ampere- Watt Meter, or for that matter, with respect to Current or Voltage, almost all conventional multimeters. Although reduced by a factor of two, excellent accuracy is maintained to 600kHz. Full scale Power ranges exist for loads with impedances from (0.6V/1.5A) = 0.4W to (600V/1.5mA) = 400kW.

The Model 2330 has full scale Power ranges from 1.0000mW to 10000W. With external shunts or current to voltage transducers the upper range may be extended by a factor of ten or one hundred. Full scale Voltage from 2.000V to 2000V (usable to 600V) and full scale Current ranges from 5.000mA to 5.000A (all rms values) cover a wide range of load impedances. Full scale Current and Voltage inputs may have crest factors up to three while smaller inputs may have even higher crest factors. Sinusoidal inputs with rms values of twice the nominal Full Scale value may be measured with no loss in accuracy.

The Model 2330 is an all solid state instrument with optically isolated input channels. All integrated circuits are in sockets. DC coupling in both channels a llows calibration and/or verification with high accuracy dc sources. Internal software calibration routines allow most recalibrations to be accomplished without screwdriver adjustments.

The Voltage and Current inputs of the Model 2330 are simultaneously sampled (with 16 bit resolution), converted to digital form, and transmitted via optical links to the main chassis. This allows both the Current and Voltage inputs to be completely isolated from each other and from the main chassis. The asynchronous sampling frequency is controlled by the system microprocessor in such a fashion that neither it nor any of its harmonics can come close to the measured input frequency or any of its harmonics. This precaution prevents "beats" with their accompanying jitter in the displayed values.

The Model 2330 is equipped with an IEEE-488.2 interface which incorporates all of the Common Commands and Queries. Any function that can be entered via the front panel can be controlled via the IEEE bus. In addition, any or all of the functions which can be displayed, can be queried and sent simultaneously to the Controller over the bus. The status (e.g. Current range, Voltage range, etc) of the instrument may also be queried and sent over the bus. The bus address is set from the front panel and is displayed at turn-on and when the Local key is pressed. A Remote lamp indicates that the Model 2330 has been placed in its Remote state by the Controller.

Clarke-Hess 2330 V-A-W Meter Manuals, Datasheets, Drivers, Links

• Clarke-Hess Communication Research 2330 Datasheet (pdf) 
• View all Clarke-Hess products 

Clarke-Hess 2330 V-A-W Meter Specs

General
Manufacturers	Clarke-Hess
Model	2330
Condition	Used and in Excellent Condition
Product Family	2300, 233O