1822: Difference between revisions

Revision as of 03:38, 24 May 2024

General Radio 1822

Digital Voltmeter Calibrator

Available from 1970 to 1970

Manuals

Manual Needed.

Catalog History

Document	Year	Page
Catalog U	1970	257

(All manuals in PDF format unless noted otherwise)

The General Radio 1822 Digital Voltmeter Calibrator was available in Catalog U (1970) only.

The Type 1822 is designed to produce accurate voltages for the testing and calibration of digital voltmeters. It can be used as a precise voltage reference from 100 μV dc to 1111.1 V dc for laboratory use. The output voltage can set to any value with five digit resolution, the resolution is adjustable. The output voltage is displayed using a mechanical digital display with automatic units and decimal placement. External programming is available through a rear panel connector along with an internal automatic step function. Other features include an interference voltage function, polarity reversal, and adjustable output impedance.

Specifications

Output Voltage: 100 μV dc to 1111.1 V dc in 7 decade ranges
Output Impedance: <0.5 Ω on 1 V through 1 kV ranges; 200 Ω on 1 mV through 100 mV ranges; A l kΩ, 10 kΩ, or 100 kΩ output resistor can be added to above impedances by front-panel selector switch
Output Current: 10 mA at full range on 1, 10, and 100-V ranges; 1 mA on 1 kV range
Accuracy: ±(30 ppm of voltage + 10 ppm of full range + 3 μV) on all ranges except ±(50 ppm of voltage + 10 ppm of full range) on 1-kV range; Accuracy of rear-panel voltages ≤111 mV, ±(30 ppm of voltage + 10 ppm of range +0.5 μV)

Links

Experimenter March 1969 describing Type 1822

Photos

Circuit Boards

1822-2720
1822-2720
1822-2731
1822-2731
1822-4750
1822-4750
1822-4756
1822-4756
1822-4761
1822-4761
1822-4766
1822-4766
1822-4770
1822-4770
1822-4776
1822-4776
1822-4780
1822-4780
1822-4785
1822-4785
1822-4790
1822-4790
1822-4796
1822-4796

@@ Line 23: / Line 23: @@
 * '''Output Voltage:''' 100 μV dc to 1111.1 V dc in 7 decade ranges
 * '''Output Impedance:''' <0.5 Ω on 1 V through 1 kV ranges; 200 Ω on 1 mV through 100 mV ranges; A l kΩ, 10 kΩ, or 100 kΩ output resistor can be added to above impedances by front-panel selector switch
-* '''Output Current: 10 mA at full range on 1, 10, and 100-V ranges; 1 mA on 1 kV range
+* '''Output Current:''' 10 mA at full range on 1, 10, and 100-V ranges; 1 mA on 1 kV range
 * '''Accuracy:''' ±(30 ppm of voltage + 10 ppm of full range + 3 μV) on all ranges except ±(50 ppm of voltage + 10 ppm of full range) on 1-kV range; Accuracy of rear-panel voltages ≤111 mV, ±(30 ppm of voltage + 10 ppm of range +0.5 μV)