Intelligent Calibration Module IKM

IKM Intelligent Calibration Module for Deadweight Tester
(Pressure Balances)
Used in combination with a deadweight tester (pressure balance) to determine the required mass loads
Conversion into all common pressure units
Consideration of the local gravity on-site
Considers all critical ambient parameters to improve the measuring accuracy
Easy calibration of pressure transmitters through integrated voltage supply and multimeter function (optional)
Self-sustaining system, PC-independent
Retro-fitting possible, for all deadweight tester (pressur balances) available on the market
  • Description
  • Application Areas
  • Specifications
  • Brochure
  • User’s Guide

Product Description

IKM – Basic

Deadweight Tester (pressure balances) are well-proven precision measuring products. Their mechanical measuring principle guarantees high accuracies. However, in order to achieve these accuracies, corresponding corrections have to be made. Besides the temperature of the piston-/cylinder-system, the main influencing factors are the local gravity and the ambient parameters. The basic IKM package converts masses into the corresponding pressure value, or vice versa it calculates the mass-loads required for a specific pressure value. The conversion can be carried out in all common pressure units. The ambient parameters (temperature, relative humidity, barometric pressure) can be entered into the IKM manually to get the corrections.

IKM – Metrology Extension

This package (option) includes sensors to make an automatic registration of all critical parameters and a continual updating of the calculations possible. Thus no additional laboratory measuring instruments such as barometers, hygrometers and thermometers are required.

IKM – Transmitter Extension

Deadweight Tester are frequently used for (on-site) calibration of pressure transmitters. Using this extension no additional devices are required. The power supply for the pressure transmitter (12 VDC regulated) as well as the signal measurement is realised via this optional module. Besides the signal (mA or V) the automatic converted pressure value is also shown on the IKM display.

IKM- Visualisation Extension

With this package, the IKM shows the position of the piston as a bargraph on its display. The piston position is measured contact-free. This helps the user to find and keep the right piston position.

  • Pressure applications
  • On-site applications (service and maintenance)
  • Dimension:
    IKM - basic:  155 x 243 x 145 mm
  • Weight:
    IKM - basic: appr. 3.3 kg
  • PC-Communication:
    IKM - basic: RS 232
  • Barometric Pressure Range Accuracy:
    Metrology Extension: 900...1100 mbar abs. 0.05%
  • Piston temperature Range Accuracy:
    Metrology Extension: 900...1100 mbar abs. 0.05%
  • Piston temperature Range Accuracy:
    Metrology Extension: 10...30°C 0.1°C
  • Ambient temperature Range Accuracy:
    Metrology Extension: 10...30°C 0.5°C
  • Air humidity Range Accuracy:
    Metrology Extension: 20...80% r.h. 5%
  • Voltage / Current Range Accuracy:
    Metrology Extension: 20...80% r.h. 5%
  • Voltage / Current Range Accuracy:
    Transmitter Extension: 0...10 V, 0/4...20 mA 0.01%
  • Measurement of piston position Accuracy:
    Visualisation Extension: 0.5 mm

Intelligent Calibration Module IKM Brochure

Intelligent Calibration Module IKM User Guide