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KD20
KD20

Rev : P3 | Rev date : 06 Feb 2025

PRODUCT DESCRIPTION

The automatic dehydrator series KD20/KD70 is specifically engineered to pressurize elliptical waveguide, coaxial cable, rigid transmission line, and antenna systems reliably. By utilizing dry pressurized air in the distribution system, condensation is prevented, ensuring optimal system performance.

The KD20/KD70 dehydrators feature high-activited aluminum oxide to absorb moisture, along with a dual-chamber system that delivers pressurized dry air while automatically regenerating the desiccant by purging collected moisture to the atmosphere. This innovative design eliminates the need for desiccant replacement or manual reactivation, making the dehydrators perfect for unattended operation, even in remote locations. With proper installation, operation, and maintenance, these units can provide years of trouble-free service.

FEATURES / BENEFITS

  • Output flow rate: 0.35SCFM or 10L/min (+/-10% at 25°C)
  • Output pressure: 1-50KPa field adjustable
  • Alarm indicator and numeric display to show high pressure, low pressure, excess run and dew point alarms.
  • 4 gas outlet ports support up to 4 transmission lines without the need of a gas manifold
  • Unique leakage detection function aids in inspecting the airtighness of the system
  • 3U height enclouse supports desktop, rack and wall mount
  • KD20S/KD70S models available with network management capability, supporting TCP/IP and SNMP network systems
  • 220VAC and 48VDC power models available upon demand

General Specifications

    KD20 KD20S KD22 KD22S KD24-DC KD24S-DC
Dehydrator Type   Automatic
System Capacity   Standard
60 Hz Output Capacity Nl/h (SCFM)   690 690 600 (0.35)
50 Hz Output Capacity Nl/h (SCFM)   600 (0.35) 600 (0.35) 600 (0.35)
Output Dew Point °C (°F)

Better than -40 (-40)

Factory Set Output Pressure (on/off) kPa (psig) 20.7 / 34.5 (3 / 5)
Field Adjustable Output Pressure Range kPa (psig) Field configurable from 1.4 - 48.3 (0,2 - 7)
Number of Outlets   4
Output Fitting   Screw-on quick fit for 3/8" OD tube
Network Management   KD20/22/24: N/A KD20S/22S/24S: TCP/IP, UDP, SNMP

Electrical Specifications

   
    KD20 KD20S KD22 KD22S KD24-DC KD24S-DC
Operating Voltage V 120 +/- 10%, 50/60Hz 220 +/- 10%, 50/60Hz -48VDC +/- 10%
Max. Active Current A 2 1 4.2
Max. Power Consumption Watt 200
Electrical Feed Circuit Configuation   Single phase, 3-Conductor (Phase/Neutral/Ground)  
Electrical Inlet Connector   IEC 320 Type C 14  

Mechanical Specifications

Dimensions, H x W x D mm (in) 132 x 482 x 345 (5.2 x 19 x 17.1)
Net Weight kg (lb) 13 (29)

Environmental

Ambient Temperature Range °C (°F) -25 to 65 (-13 to 149 )
Ambient Humidity Range, relative % 0-95
Noise, dBA @ 1 m, Active dBA 65

Standard Accessories

Item Quantity

Descrption

Power Cord 1pc For 110 and 220V AC Models only, 6ft (1.8m) long
Fuse 2pcs Spare fuse
Gas Inlet Adaptor 4pcs 1/8 thread and 3/8" OD screw-on
Plastic Tube 30ft Black, 3/8" OD
Mount Bracket 2pairs For rack and wall mount
Rubber feet 4pcs For desktop mount

Optional Accessories

Model Number  

Descrption

    8,000 hour maintanence kit

Compliance

Compliance  

CE (EMC, MD, PED, RoHS)

IEC 60529, IP20

Alarms

Front Panel Indicators   Alarm (red), Working (green), L D (yellow)
Alarm Configuration   Low Pressure Alarm, High Pressure Alarm, Excess Run Alarm, Dew Point Alarm
Low Pressure Alarm  

0.1 psi below lower operational pressure limit setting

High Pressure Alarm   0.5 psi higher than the high pressure limit setting
Dew Point Alarm   When unit output air dew point is higher than -5°C (23°F)
Event Log   Unit power-on time, Accumulated inflating time, Number of inflating

External Document Links

NOTES

1) All specifiactions at 23°C (73°F) and 50% relative humidity at mean sea level (MSL) unless otherwise noted.