1340A High Precision Voltage Divider

Simplify your procedures; simplify your work.

  • Best accuracy: < 0.04 ppm
  • Cost-effective
  • No self-alignment required
  • Performance-based results
  • 10:1, 100:1, 1000:1 and 10,000:1 Ratios
  • Maximum voltage: 1100 V
  • Easy-to-use design

DC voltage calibration and verification of DVMs and calibrators has never been so easy or reliable. Measurements International’s 1340A High-Precision Voltage Divider is the industry’s leading choice thanks to its user-friendly design, backed with the best features for optimal performance. The 1340A continues MI’s trusted voltage product line history. We invite metrologists and calibration technicians in national, military and calibration laboratories to compare the 1340A against any competing product on the market.

 

 

Overview

 

Feature Benefit
10:1, 100:1, and 1000:1 reference divider output to 1100 V.

Accurately divides input voltage by 10, 100, 1000, or 10,000. Maximum input voltage is 1100 V.

 Precisely compare direct voltage levels of various sources to a 10-Voltage reference standard, like a 1330A, 732, and 734
Requires no self-alignment or calibration prior to use. Saves time, money, and frustration!
Utilizes a special design network of high precision resistors mounted in a temperature-controlled chamber. Shields divider resistors from outside noise and provides temperature stability to improve performance.
Front panel direct connection to calibrator; divider output connection to DVM for testing; both done with supplied cables. Quick and easy setup.
Internally-mounted PT100 temperature sensor. Easily monitor the internal oven.
New special, hand-selected resistors and configuration. No self-alignment required to create divider network.
Divider calibration performed directly against a 1330A, 732A/B/C or 734C references. DC dividers continue to deliver exceptional performance.

1340A Diagram

Figure 1. Example: 1000 V in divided to 10 V out to be measured

An easy-to-use instrument

1340A Diagram 2

Figure 2. Illustrates using a 1330A, 732A/B/C or 734C reference in the connection sequence. A DVM can be used as a NULL detector to determine the offset of the 57XX series on the 10:1 and 100:1 ratio.

Figure 3. 24 Hour Stability of Temperature Chamber

Specifications
Ratio Range Uncertainty / 30 Days Input Voltage (V)
7 Day 30 Day 90 Day 1 Year
 Stage 1 10:1 0.04 0.2 0.5 2.0 10 V
Stage 2 10:1
Stage 3 10:1 110 V
Stage 4 10:1 1100 V
100:1 0.1 0.3 1.0 3.0
1000:1
10000:1 0.4 4.0
Internal Temperature Stability ± 0.1°C Over a 1-year period
Ambient Temperature Range 23 °C ± 5 °C
Initial Warm-up Time 24 hours
Ambient Humidity Range 20 % to 90 % non-condensing
Storage -50 °C to +50 °C
Alignment Not required
Isolation to Earth > 1012 Ω
Direct Cable to 57XX Provided
PT 100 Cable Provided
Warranty 2 years (parts & labour)

 

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