PERFORMANCE

• All specifications are with a 6000B-8 probe at a probe-to-surface separation of 2 mm.

  Measurement Range
  0 to ±2 kV DC or peak AC.

  Accuracy
  Voltage Monitor Output
  Better than ±0.05% of full scale.
  Voltage Display
  Better than ±0.1% of full scale referred to the voltage monitor.

  Speed of Response (10% to 90%)
  Less than 3 ms for a 1 kV step.

  Stability
  Drift with Time
  Less than 100 ppm/hour, noncumulative.
  Drift with Temperature
  Less than 100 ppm/°C.

PROBE

Probe-to-Surface Separation (recommended)
2 mm ±1 mm.

Standard Resolution Probes
Model 6000B-7C  end-viewing, round body.
Model 6000B-8  side-viewing, round body.
Model 6000B-15C  end-viewing, square body.
Model 6000B-16  side-viewing, square body.

High Resolution
Model 6000B-5C  end-viewing, round body.
Model 6000B-6  side-viewing, round body.
Model 6000B-13C  end-viewing, square body.
Model 6000B-14   side-viewing, square body.

Miniature
Model 555P-4  end-viewing, square body.
Model 555P-1  side-viewing, square body.

High Temperature (up to 100 °C)
Model 6300-7  end-viewing, square body.
Model 6300-8  side-viewing, square body.

Probe Connector Locations
Model 344
Front panel.
Model 344-1
Back panel.
Model 344-6
Front panel.
Model 344-9
Front panel.

PRODUCT FEATURES

• Zero Control
  A ten-turn control to null offsets that may be present at the voltage monitor output when the Model 344 is measuring zero volts.

  Response Control
  A ten position push-button switch that adjusts the gain of the Model 344 to optimize the AC response. The response control is normally adjusted when changing the type of probe being used or when changing the probe-to-surface separation.

  Voltage Monitor Output
  A buffered output providing a replica of the measured voltage.
  Scale(s)
  Model 344
  1/100th of the measured voltage.
  Model 344-1
  1/100th of the measured voltage.
  Model 344-6
  1/1000th of the measured voltage.
  Model 344-9
  1/200th of the measured voltage.
  Output Noise
  Less than 2 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
  Output Impedance
  Less than 0.1 ohm.

  Voltage Display
  3 1/2 digit LED display.
  Range
  0 to ±1999 V.
  Resolution
  1 V.
  Zero Offset
  Less than ±1 count.

• Digital Enable (optional)
  An open collector, TTL compatible input to enable or disable the measurement. A TTL high (or open) will disable the measurement. A TTL low will enable the measurement.

ACCESSORIES

• Accessories Supplied
  • Operator’s manual and line cord.

  Optional

  • 344RA Full-Rack Mounting Kit
    (two instrument capacity)

    6003B Probe Line Driver (required when a very long probe extension cable is used)

    6004B-EC Probe Extension Cable (from 344 to line driver)

    6005B-EC Probe Extension Cable (from 344 to probe)

GENERAL

• Line Supply
  Factory set for one of three ranges: 100, 115, or 230 V AC, at 48 to 63 Hz
  (specify when ordering).

  Operating Conditions
  Temperature
  0°C to 40°C.
  Relative Humidity
  To 90%, noncondensing.

  Dimensions
  64 mm H x 220 mm W x 270 mm D
  (2.5" H x 8.7" W x 10.6"D).

  Weight
  2 kg (4.4 lb).

  Voltage Monitor Connector
  BNC coaxial connector.

  Ground Receptacle
  Banana jack.

  AC Line Cord Receptacle
  Standard three-prong line cord receptacle.

  Power ON/OFF
  A toggle switch

CERTIFICATION

TREK, INC. certifies that each Model 344 is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards. A Certificate of Calibration accompanies each instrument when it is shipped from the factory.

All specifications are subject to change.