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Gas Density Monitor - GDM 233.52.100 TI

Brand: WIKA Alexander Wiegand SE & Co. KG
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The model GDM-100-TI features a model GD-10 analogue transmitter integrated into the rear of the case. Through this, the functions of switching and transmission are combined in just one gas density monitor.

The combination of a gas density monitor and transmitter in one instrument enables the parallel operation of both instruments with only one process connection, provides additional safety through redundancy and simplifies the installation tasks on the electrical equipment.
Features
  • On-site display with switch contact
  • Remote readout (output 4 … 20 mA, 2-wire), measuring ranges from 0 ... 10 g/litre to 0 ... 80 g/litre
  • High electromagnetic compatibility (EMC)
  • Hermetically sealed, therefore no influence from atmospheric pressure fluctuation and differences in mounting heights
The model GDM-100-TI features a model GD-10 analogue transmitter integrated into the rear of the case. Through this, the functions of switching and transmission are combined in just one gas density monitor.

The combination of a gas density monitor and transmitter in one instrument enables the parallel operation of both instruments with only one process connection, provides additional safety through redundancy and simplifies the installation tasks on the electrical equipment.
Features
  • On-site display with switch contact
  • Remote readout (output 4 … 20 mA, 2-wire), measuring ranges from 0 ... 10 g/litre to 0 ... 80 g/litre
  • High electromagnetic compatibility (EMC)
  • Hermetically sealed, therefore no influence from atmospheric pressure fluctuation and differences in mounting heights
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Specifications

Brand

Nominal Size in mm

  • 100

Calibration Pressure PE

  • To Customer Specification

Accuracy Specifications

  • ± 2.5 % at ambient Temperature -20 … +60° C and with calibration Pressure in accordance with reference isochore (Reference diagram KALI-Chemie AG, Hanover, prepared by Dr. Döring 1979)
  • ± 1 % at an ambient Temperature of 20° C [68° F]

Scale Range

  • Vacuum and overpressure Range with measuring Span of 1.6 ... 25 bar (At an ambient Temperature of 20° C [68° F] and gaseous phase)

Permissible Ambient Temperature

  • Storage: -40° to +60° C [-58° to +140° F]
  • Operation: -20° to +60° C [-4° to +140° F], Gaseous phase

Process Connection

  • Other Connections and Connection locations on Request.
  • Stainless Steel, Spanner flats 22 mm
  • G 1/2 B per EN 837, Lower Mount

Pressure Element

  • Test method: Helium mass spectrometry
  • Gas-tight: Leak rate ≤ 1 · 10-8 mbar · l / s
  • Stainless Steel, welded

Movement

  • Bimetal link (Temperature Compensation)
  • Stainless Steel

Dial

  • Red, Yellow, Green area as Specified in the order
  • Aluminium

Pointer

  • Aluminium, Black

Case

  • Option 2: Stainless Steel, with filling Liquid
  • Option 1: Stainless Steel, with Gas filling

Window

  • Option 2: Clear Non-splintering Plastic
  • Option 1: Laminated Safety Glass

Ring

  • Bayonet Ring, Stainless Steel, secured by means of 3 welding spots

Permissible Air Humidity

  • ≤ 90 % Relative Humidity Non-Condensing

Ingress Protection

  • IP65 per IEC/EN 60529

Weight

  • Case with gas filling: approximately 1.2 kg
  • Case with fill fluid: approximately 1.6 kg

High Voltage Test 100%

  • 2 kV, 50 Hz, 1 s (Wiring against Case)
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Applications

  • Gas density monitoring of closed SF6 tanks
  • For indoor and outdoor installation in SF6 gas-insulated switchgear
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