+44 203 286 8189 steve.jones@westside-int.com

Membrane product range

 

Rosahl membranes

Four ranges are available depending on the type of installation and size of enclosure.  They are:

 

1. PD4/5 Series for dehumidifying enclosures up to 1 litre

Types PD4 and PD5 are a screw-in membrane dehumidifiers suitable for dehumidifying enclosures up to 1 litre. The PD4 has soldered connectors and PD5 has push connectors. Both models use a fine pitch M12 fixing (M12 x P0.5). The flange diameter is 17mm and length 11mm and no gasket is supplied. A 3V dc power supply is required. Optional locking rings are available if required.

 

See table below for specification and performance.
PD2/PD3 Membrane

PD2/3 Series for dehumidifying enclosures up to 2 litres

iTypes PD2 and PD3 are a screw-in membrane dehumidifiers suitable for dehumidifying enclosures up to 2 litres. The PD2 has soldered connectors and PD3 has push connectors. Both models use a fine pitch M12 fixing (M12 x P0.5). The flange diameter is 17mm and length 11mm and no gasket is supplied. A 3V dc power supply is required. Optional locking rings are available of required.

 

See table below for specification and performance.
PD2/PD3 Membrane

2. RD Series for dehumidifying enclosures up to 2 litres

 

Type RD is a flat membrane dehumidifier also for enclosures up to two litres and measures 24 x 30 x 5.5mm. The standard version is model RD3 which is designed to be mounted on the outside of the enclosure. Model RD4 is almost identical but designed to be installed inside the enclosure to be dehumidified: a gasket is supplied. A 3V dc power supply is required.

 

See table below for specification and performance.

3. RS Series for dehumidifying enclosures up to 5 litres

 

The type RS is a flat membrane dehumidifier for enclosures up to five litres and measures 21 x 28 x 13.5mm. The RS1 uses soldered terminals and the RS2 uses push connectors. They both mount on the the outside of the enclosure. Model RS1 and RS2 have the same dimensions and only differ in the electrical connections . They need a 3V DC power supply.

See table below for specification and performance.
New RS Series of Rosahl micro electric dehumidifier

3. Type MDL for dehumidifying enclosures from 0.5 to 2m³

The MDL Series is a thin flat membrane dehumidifier 2.3mm deep and available in three models according to enclosure size. Volumes over 2m³ can be controlled using two or more membranes. A 3V dc current limiting power supply is required. MDL models are normally installed inside the enclosure.

 

See table below for specification and performance.

4. New M Series for dehumidifying enclosures from 0.25 to 4m³

With a wider range of five models and simpler installation, the new M Series membranes are mounted in pre-drilled stainless steel frames and supplied with a pre-formed gasket. As with the existing MDL Series, multiple membranes may be used for larger enclosures.  A 3V dc current limiting power supply is required. M Series models are normally installed inside the enclosure.

 

See table below for specification and performance.

5. Membranes pre-installed in a steel case for ease of mounting

A range of membranes  pre-installed in steel enclosures are available for ease of installation.  Three models are available and use the M-5J1R, M-7J1R, or the M-10J1R membrane simplified.

These units need an external power supply.

 

See table below for specification and performance.
PD4/PD5*PD2/PD3**RD3/RD4***RS1/RS2****MDL-3MDL-5MDL-7
image of Rosahl PD3 membrane micro dehumidifierimage of Rosahl PD3 membrane micro dehumidifierImage of Rosahl RD3 membrane micro dehumidifierMDL x 100H
Dehumidifying (grams/day)0.0420.0840.0840.214816
Applicable volume<1 litres<2 litres<2 litres<5 litres<0.5m3<1m3<2m3
Element terminal voltage3V DC3V DC3V DC3V DC

3V DC3V DC3V DC
Power consumption (W)0.060.080.080.22234
Dimensions (mm)Ø 17 x 11 Ø 17 x 11 30 x 24 x 5.521 x 28 x 13 596 x 63 x 2.396 x 88 x 2.3116 x 108 x 2.3
Weight (g)0.91.81.83.4202550
Operating temperature-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C
Notes* Connector
PD4 soldered
PD5 push
** Connector
PD2 soldered
PD3 push
*** Mounting
RD3 outside
RD4 inside
**** Connector
RS1 Soldered
RS2 Push
Push connector
with 50cm cable
supplied
Push connector
with 50cm cable
supplied
Push connector
with 50cm cable
supplied

 

M-SeriesM-1J1RM-2J1RM-3M1RM-3J1RM-5J1RM-7J1RM-10J1R
Image of Rosahl M-Series membrane dehumidifier
Dehumidifying (grams/day)12.02.9481629
Applicable volume m³0.125 m³<0.25 m³<0.35 m³<0.5 m³<1 m³<2 m³<4 m³
Element voltage 3V DC
Power consumption (W)1.01.5223612
Dimensions (mm)52.5 x 50 x 16.567.5 x 50 x 16.5
65 x 62 x 16.5
74 x 58 x 16.5
89 x 84 x 116.5
117 x 105 x 17.5
162.5 x 155 x 17.5
Weight (g)70859095150340580
Operating temperature-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C
TerminalsPush connectorPush connectorPush connector Push connectorPush connectorPush connectorPush
connector

 

Enclosed membranes

 

S-5T1 S-7T1 S-10T1
Image of rosahl membrane pre-installed in steel enclosure
Dehumidifying (grams/day)81629
Applicable volume<1m3<2m3<4m3
Element terminal voltage3V DC3V DC3V DC
Power consumption (W)348
Dimensions (mm)130 x 111 x 30150 X 138 x 30185 x 168 x 30
Weight (kg)0.40.50.7
Operating temperature-10 to +50C-10 to +50C-10 to +50C
See notes below *

Notes

*1 The initial value at the temperature of 30°C and humidity of 60%. (The dehumidifying capacity of the membranes will degrade over time depending on the operating environment

*2 The applicable volume is for a sealed, moisture-impermeable container, and may vary depending on the material of the container, state of sealing and required humidity.

*3 The annual average power consumption in average conditions in Japan.

Rosahl

micro-dehumidifier

micro-Entfeuchter

micro-déshumidificateur

micro-deshumidificador

 

Westside International Ltd

Registered in England

Registration No. 4018025

VAT No. 768327395

EIN 98-1234498