The HP 2804A Quartz Thermometer allows you to easily measure temperature with exceptionally high accuracy and resolution. Absolute accuracy is ±40 millidegrees Celsius over the range of -50°C to 150°C, NIST traceable to ITS-90. The useable resolution of 0 .0001 °C allows you to measure temperature changes that could not be detected by other digital thermometers.

The HP 2804A can be used with one or two temperature sensing probes, The temperature of either probe, or their difference, can be measured and displayed under pushbutton control. Display resolution is selectable from 0.01 to 0.0001°C (0.1 to 0.001°F) by pushbuttons. An internal switch allows you to easily select measurement in the Celsius or Fahrenheit temperature scale. Temperature is measured and displayed automatically with the microprocessor and electronics provided in the HP 2804A package.

There is no need to balance a bridge, perform calculations using resistance or voltage-temperature tables or curves, or to use calibration correction tables. The only adjustment necessary to remove effects of thermal history on the sensor is a simple ice point or triple point calibration adjustment using the front panel thumbwheel switches.

Features:

• ±0.04°C absolute accuracy

• 0.0001 °C or 0 .001 ° F resolution

• -80° to +250°C range

• Display of absolute or differential temperature

• Flexible HP-16 system interface

• Variable resolution analog output

• Easy ice-point or triple-point adjustment

Specifications:

Performance

• Range: -80 to 2500C

• Absolute accuracy: HP 2804A with HP 18110A, or HP 18111A Quartz Probe -
  ±0.040°C from -50 to 150°C
  ±0.075°C from -80 to 250°C
  NIST traceable to ITS-90

• Resolution: three levels can be selected:

General

• Display: 7-digit LED with polarity, decimal, and degree C or F annunciator.

• Probes: laboratory probes are available for use with the HP 2804A,

Please contact us for more information on the HP / Agilent 2804A