1455 Series Decade Voltage Divider

  • Linearity better than 20 ppm (5-dial model) 
  • Input impedance: for 1455-A 10 kΩ & 1455-B, 1455-BH 100 kΩ 
  • High-frequency model, down 3 dB at 7.5 MHz
Prices range from $8,185.00 to $9,804.00
Prices range from $8,185.00 to $9,804.00
Estimated Delivery is 8 to 13 weeks

The GR 1455 Kelvin-Varley Voltage Dividers provide accurately known voltage ratios from 0.00001 to 1.00000 for use in many common measurements:

  • 1. Voltage gain or attenuation
  • 2. Linearity of potentiometers and other controls
  • 3. Frequency response of audio and rf networks
  • 4. Transformer turns ratio
  • 5. Voltmeter calibration


A resistive divider of the Kelvin-Varley type, the 1455 has precision resistors throughout (rather than in selected positions only) for over-all high accuracy. Linearity is as low as 0.02 ppm of input.

BASIC SPECIFICATIONS

 
1455-A
1455-B
1455-BH
Number of Dials: 
4
5
5
Input Resistance: 
10 kΩ
10 kΩ
100 kΩ
Accuracy of Input R: (ppm)
150
150
150
Input Voltage Rating: 
230 V 
230 V 
700 V 
Frequency Response: 
850 kHz 
690 kHz 
69 kHz 
Resolution: (ppm of input) 
100
10
10
Linearity (sum of A & B)      
A. Absolute Linearity      
0.00001 to 0.00010
n/a
0.03
0.02
0.00010 to 0.00100
0.3
0.3
0.2
0.00100 to 0.01000
2
3
2
0.01000 to 0.10000
15
10
10
0.10000 to 1.00000
30
20
20
B. Terminal Linearity (ppm of input).      
FOUR-TERMINAL (low output terminal)
0.04
0.04
0.004
THREE-TERMINAL
0.2
0.2
0.02