LAB4XX-B Series
LAB4XX-B Automatic Dehydrator, 48-60 VDC or 100-240 VAC 50/60Hz

Name: LAB4XX-B Automatic Dehydrator, 48-60 VDC or 100-240 VAC 50/60Hz
SKU: LAB4XX-B Series

Rev : C | Rev date : 02 Jan 2026

The LAB4 Automatic Pressurization Dehydrator is designed for reliable pressurization of elliptical waveguide, coaxial cable and rigid transmission line systems. The dehydrator includes a self contained completely automated air drying system that utilizes a pressure swing moisture absorption cycle to provide pressurized dry air. This eliminates the need for replacement or manual reactivation of the desiccant and makes the LAB4 dehydrators ideal for unattended operation at even remote sites.The pressure output is adjustabled in the field to operate anywhere between 1 kPa and 6 kPa (0.15 psig and 0.87 psig).A factory set safety valve at 7 kPa (1 psig) protects the products of destruction by over pressure.

Features / Benefits

Flow rate up to 300 Nl/h
dew point better than -45°C
two pumps and two drying chambers running alternatively continous duty and automatic operation drying chamber automatic regeneration
microprocessor control low/high pressure, high humidity, power and system failure alarm
local and remote alarm signalling
very low power consumption
low acustic noise
mounting: wall, floor, 19"" EIA, ETSI N3 rack

General Specifications

Product Type

Automatic Dehydrator

Model

LAB4DC-B + LAB-AC/DC

LAB4DC-B

max. System Volume @Sea Level

600 l

Output Capacity

300

Output Pressure

1 - 6 (0.15 - 0.87)

Output Dew Point

-45

Number of Outlets

Output Fitting

7 mm

Noise Level at 3m

Network Management

optional (SNMP V1) Modelname: LAB4DC-B-ETH

ELECTRICAL SPECIFICATIONS

Operating Voltage

100 - 240 VAC, 50 / 60Hz

48 - 60 VDC

Mechanical Specifications

Dimension H x D x W

13.2 x 20 x 48.2 (13.2 x 28.7 x 48.2 for wall mounting) cm

Weight

6.5 kg

Pumping Power Consumption

Idle Power Consumption

Environmental

Ambient Temperature Range

-10 to +50 °C

ALARMS

Alarm

Summary alarm provided by internal SPDT (Single Pole Double Throw) relay contacts. (remote alarm)

Power and system failure (remote alarm)

High pressure alarm (local alarm or by optional snmp protocol)

Low pressure alarm (local alarm or by optional snmp protocol)

High humidity (local alarm or by optional snmp protocol)

ACCESSORIES

Model Name	Description
TUBE-01-G18	Gas inlet adaptor G 1/8" for 6mm tube
TUBE-01-050M	Polyethylene Tube, max. 8 Bar, 6 x 8 mm, 50m
TUBE-0816	Tube Clamp, 8-16 mm
TUBE-SEAL	Teflon Tape 10mm, 12m