D122.A.0.0

The digital indicator D122 indicates measured values of intrinsically safe current circuits from 4 up to 20 mA in hazardous areas. The device is powered by measure circuit, therefore an extra power supply or batteries are unnescessary. 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 4 1/2 digit resolution. For trend analysis, the measured signal is also be displayed 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 value exceeds its alarm limits. It is possible to configure the outputs 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. There's also the possibility to use the display as "counter" which gives the sum of the measured values (type D122.Z)

Ergonomics:
• µ-processor technology for extensive configuration
• scaleable by keyboard and display, without reference current
• separately scaleable bargraph (zoom)
• current control button
• keeps the configuration by turn off
• ability to change configuration during operation
• exchangeable dimension signs

D122.A.0.0
Show photo

Product specifications

Order refer. D122.A.0.0
Housing panel housing
Digital height 15 mm
Display indication 4 1/2-digits 7-segment LCD
Display range -19999 ... +19999
Bargraph 41 segments
Digital output
Suitable for zone 21 and 22 0
Ex Certificate TÜV99ATEX1488

Classification

  • II 2 (1) G Ex ib [ia Ga] IIC T6 Gb
  • II 2 (1) D Ex ib [ia Da] IIIC T135°C Db

Zone

0 1 2
20 21 22

General technical specifications

Protection Front panel up to IP55 - with sealed keyboard IP65
Housing According to control panel standard DIN43700
Material housing - panel housing : glass fibre reinforced noryl
- field housing : ABS
Decimal points selectable by keyboard
Limit monitoring By means of intrinsically safe control circuits (e.g. NAMUR or DIN19234)
Alarm limits display via bargraph, flashing 'max.' or 'min.' display (only types A.0, A.3 en A.5)
Measurement circuit limits see certificate TÜV99ATEX1488
Alarm terminal limits see certificate TÜV99ATEX1488
Measurement circuit intrinsically safe measurement circuit 4-20 mA, voltage drop ca. 1V
Current control button direct display of the current in measurement circuit
Symbols selectable with defined symbols
Temperatuurscoëfficient < 0,01 % of measure range / K
Ambiant temperature -10°C - +45°C
Guideline ATEX
Manufacturer Gönnheimer
Suited for
Zone 1 Zone 2
Zone 21 Zone 22

Dimensional sketches