Despatch RFD1-42 User Manual

INSPIRED INNOVATION

 RFD Class A Cabinet Ovens

For applications that include fl ammable
solvents or excessive solvent removal

RFD Class A ovens are specially designed to meet NFPA 86 requirements for
applications that include  ammable solvents or large amounts of moisture
removal.  ey include a pressure relief panel, purge timer and exhaust fan.

 ese ovens feature horizontal recirculating air ow to ensure exceptional
temperature uniformity throughout the oven. A high-volume fan circulates
air through perforated, stainless steel walls to create a constant horizontal
air ow across all sections of the oven.  e result is proven reliability in
demanding production and laboratory applications, such as curing, drying,
stress relieving, aging, and other process-critical applications.

FEATURES AT A GLANCE

 Temperatures up to 343°C (650°F)

(Models available with temperatures
up to 538°C (1000°F))

 Class A package meeting NFPA 86

requirements for fl ammable solvents

 Three models from 4.2 to 35 cu. ft.

(119 to 991 liters)

 Horizontal recirculating airfl ow

 Protocol 3

display, integrated data logging
capabilities and USB port for simple
oven set-up and data export.

 304 stainless steel interior

 5-year heater warranty

 End of cycle and high-limit indicators

 Audible and visual high-limit alarm

TM

control with large LCD

 RS485 Modbus communication

PC interface

 1” process port for

test wires and disconnect switch

 UL and C-UL listed open industrial

control panel

OPTIONS:

 Despatch unique adjustable louvers

 Door switch

 Reinforced fl oor

 Chart recorder

 CE compliance

RFD 1-42 Bench 2-19 2-35

PHYSICAL SPECIFICATIONS

Chamber size (width x depth x height) 20 x 18 x 20 in.

Capacity in cubic feet (liters) 4.2 (119) 19.5 (552) 35 (991)

Overall size (width x depth x height) 46 x 36.5 x 37.5 in.

Electrical:
60 hertz - three phase

*1-42 bench runs on
50/60 hertz - single phase

Number of shelves provided

Maximum number of shelves 8 on 2 in. centers 12 on 3 in. centers 14 on 3 in. centers

Exhaust outlet diameter

Doors 1 2 2

Approximate net weight 380 lbs (172 kg) 1495 lbs (678 kg) 1745 lbs (792 kg)

Approximate shipping weight 510 lbs (231 kg) 1695 lbs (769 kg) 1945 lbs (882 kg)

Insulation thickness 4 in. (10.2 cm) 6 in. (12.7 cm) 6 in. (12.7 cm)

208 volts

240 volts *30.8 amps/6 kW 44.5 amps/16 kW 86 amps/32 kW

480 volts NA 22.2 amps/16 kW 43 amps/32 kW

51 x 46 x 51 cm

117 x 92.7 x 95 cm

*34.5 amps/6 kW 55.9 amps/18 kW 84 amps/27 kW

2 2 2

2.5 in. (6.4 cm) 7 in. ( 17.8 cm) 7 in. ( 17.8 cm)

FUNCTIONAL SPECIFICATIONS

Time to temp with no load (40˚C to 177˚C) 12 minutes 16 minutes 12 minutes

Time to temp with no load (40˚C to 260˚C) 24 minutes 30 minutes 22 minutes

Time to temp with no load (40˚C to 343˚C) 43 minutes 48 minutes 36 minutes

Temperature uniformity +/- 2.3˚C at 177˚C

Minimum operating temp 30˚C (86˚F) 30˚C (86˚F) 30˚C (86˚F)

Maximum operating temp 343˚C (650˚F) 343˚C (650˚F) 343˚C (650˚F)

Control stability +/- 0.5˚C/5˚C on all models ( represents the change in ambient

Repeatability +/- 0.5˚C +/- 0.5˚C +/- 0.5˚C

Maximum load capacity 200 lbs (91 kg) 850 lbs (386 kg) 1250 lbs (567 kg)

Maximum shelf capacity 30 lbs (13.6 kg) 100 lbs (45.4 kg) 100 lbs (45.4 kg)

Exhaust capacity (minimum/maximum) 23/93 CFM

Solvent handling capacity at 177˚C (350˚F) MEK.025 GPH (.095 l/h)

Forced exhaust HP 1/50 HP 1/3 HP 1/3 HP

Recirculating fan 1/2 HP

+/- 3.4˚C at 260˚C
+/- 4.2˚C at 343˚C

temperature. )

(10.9/43.9 l/s)

425 CFM (200 l/s)

36.5 x 25 x 37 in.
93 x 64 x 94 cm

79.5 x 42 x 91.5 in.
203 x 107 x 232 cm

+/- 2˚C at 177˚C (+/- 4˚F at 350˚F)
+/- 2.8˚C at 260˚C (+/- 6˚F at 500˚F)
+/- 3.7˚C at 343˚C (+/- 7.5˚F at 650˚F)

54/350 CFM
(25.5/165.2 l/s)

.06 GPH (.23

1 HP
1150 CFM (543 l/s)

l/h)

47.5 x 30 x 42 in.
121 x 76 x 107 cm

92 x 47 x 96.5 in.
234 x 119 x 245 cm

216/350 CFM
(101.9/165.2 l/s)

.24 GPH (.91

2 HP
1550 CFM (731 l/s)

l/h)

RFD front view cross section
showing airflow pattern.

Notes: Uniformity figures are based
on a nine-point test conducted in
an empty oven after stabilization
period. Uniformity can vary slightly
depending on unit and operating
conditions. Minimum operating
temperature and cooling times are
based on 20°C ambient temperature
measured at the fresh air inlet with
the fresh air and exhaust dampers
fully open. Specifications are subject
to change without notice. If the
existing specifications differ from
yours, ask about our customizing
capabilities.

*50 hertz electrical is
available on all models

RFD1-42 benchtop oven

SERVICE AND TECHNICAL SUPPORT

service parts: 1-800-473-7373
international service/main: 1-952-469-8230
service fax: [phone]

[e-mail]
[e-mail]

© 2014 Despatch Industries. All rights reserved. Despatch is a registered trademark of Despatch Industries in the U.S. and other countries. RFD 5-14

GLOBAL HEADQUARTERS

main phone: [phone]
international/main: 1-952-469-5424
sales: 1-800-726-0550
international/sales: 1-952-469-8240

[e-mail]

www.despatch.com

8860 207th Street West
Minneapolis, MN 55044 USA