Description

Gönnheimer – Digital Indicator D122.A Series

Manufactured:  Gönnheimer Elektronic

Product:  Digital Indicator Display

Series:  D122.A

Model Type:  D122.A.3.0.0

 

Description

     The digital indicator D122 indicates measured values of intfinsically safe current circuits from 4 up to 20 mA in hazadous areas. The device is powered by measure circuit, therefore an extra power supplier batteries are unneccessary. The indicator measures the current, scales the measured value and displays finally the result on the LCD. The internal 24 bit A/D conversion achieves a stable indication even at 4½ – digit resolution.

     For trend analysis, the measured signal is also be dis-played on a 41 segment bargraph. It’s possible to scale the bargraph separately. The indicator D122 is available in several housings.

     Furthermore with alarm monitoring option the indicator has two intrinsically safe alarm outputs. These outputs change their state, when the measured valued exceeds its akarm limits. It is possible to configure the output as normal open or normal closed circuits.

     Additional the alarm limits appear graphically on a second bargraph. On one look you’re sure that the measured value is in its limits.

 

Technical Details

• Ex-Protection:  II 2 (1) G, Ex ia IIC T6 Gb
• Ec-type Certificate:  TÜV 99 ATEX 1488
• Display:  4½ – digit seven-segment LCD
• Digit Height:  30mm
• Display Range:  -19999 …….. +19999
• Bargraph:  47 segments
• Alarm Limits Display Version (D122.A.X.2.X):  Via bargraph / Flashing ‘max.’ or ‘min’ display
• Limit Monitoring:  (D122.A.x.2.x only) By means of intrisically safe control circuit (e.g. NAMUR or DIN 19234)
• Current Control Button:  Direct display of the current in measurement circuit
• Measurement Circuit:  Intrinsically safe measurement circuit 4….20 mA, Voltage drop ca.1V
• Housing:  ACC. to control-panel std. DIN 43700
• Protection Class:  Front panel up to IP55
• Dimension H*W*D(mm):  72*144*80
• Panel Cut Out:  66*136.5
• Material:  Glass Fiber Strengthened Noryl
• Measuring error:  0.1% ± 2 digits referring to measure range
• Temperatured coefficient:  < 0.01% of measure range / K
• Ambient Temperature Limit:  -10°C …. +45°C for temperature class 6  II  -10°C …. +60°C for temperature class 5  II  Indicators for -20°C ambient temperatured on inquiry