+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 connecters. 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.

PD2/3 Series for dehumidifying enclosures up to 2 litres

Types PD2 and PD35 are a screw-in membrane dehumidifiers suitable for dehumidifying enclosures up to 2 litres. The PD2 has soldered connectors and PD3 has push connecters. 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.

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. 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

See table below for specification and performance.

PD4/PD5*PD2/PD3**RD3/RD4***MDL-3MDL-5MDL-7
Notes* PD4 soldered (non standard)
PD5 push connector
** PD2 soldered (non standard)
PD3 push connector
*** RD3 is mounted inside
RD4 mounted inside
push connector
with 50cm cable
supplied
push connector
with 50cm cable
supplied
push connector
with 50cm cable
supplied
image of Rosahl PD3 membrane micro dehumidifierimage of Rosahl PD3 membrane micro dehumidifierImage of Rosahl RD3 membrane micro dehumidifierMDL x 100H
Dehumidifying (grams/day)0.0420.0840.0844816
Applicable volume<1 litres<2 litres<2 litres<0.5m3<1m3<2m3
Element terminal voltage3V DC3V DC3V DC3V DC3V DC3V DC
Power consumption (W)0.060.080.08234
Dimensions (mm)Ø 17 x 11 Ø 17 x 11 30 x 24 x 5.596 x 63 x 2.396 x 88 x 2.3116 x 108 x 2.3
Weight (g)0.91.81.8202550
Operating temperature-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C

 

M-SeriesM-2J1RM-3M1RM-3J1RM-5J1RM-7J1RM-10J1R
NotesPush connecter typePush connecter typePush connecter typePush connecter typePush connecter typePush connecter type
Image of Rosahl M-Series membrane dehumidifier
Dehumidifying (grams/day)2.02.9481629
Applicable volume m³<0.25 m³<0.35 m³<0.5 m³<1 m³<2 m³<4 m³
Element terminal voltage3V DC3V DC3V DC3V DC3V DC3V DC
Power consumption (W)1.01082348
Dimensions (mm)67.5 x 50 x 11.3
65 x 62 x 11.3
74 x 58 x 11.3
89 x 84 x 11.3
117 x 105 x 13.4
162.5 x 155 x 13.4
Dimensions (mm)
including terminals
(67.5 x 50 x 15.5)(65 x 62 x 15.5)(74 x 58 x 15.5)(89 x 84 x 15.5)(117 x 105 x 16.5)(162.5 x 155 x 16.5)
Weight (g)859095150340580
Operating temperature-10 to +50C-10 to +50C-10 to +50C-10 to +50C-10 to +50C

 

Enclosed membranes

 

S-5T1 (S-5J1)S-7T1 (S-7J1)S-10T1 (S-10J1)
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)111 x 130 x 30138 X 150 x 30168 x 185 x 30
Weight (kg)0.40.50.7
Operating temperature-10 to +50C-10 to +50C-10 to +50C

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.
*4 The dimensions of A x B x C in the figure. (The height of the dial on the RDHC type and humidity controller unit is 15 mm.)
*5 RDH-3P1 does not include a humidity controller.