Despatch 924E User Manual
INSPIRED INNOVATION
u 900 Series Benchtop
Temperature Chamber
Small Footprint Packed With Versatility
e 900 Series Benchtop Temperature Chambers are designed for high and
low temperature simulation where high performance and close temperature
tolerance are required. e units are ideal for small lot qualication testing,
burn-in, life test, temperature cycling or research and development. All 900
Series are bench models designed for continuous use with ease of operation
and maintenance in mind.
FEATURES AT A GLANCE
u Precision high/low temperature simulation
with programmable profiling control
u Superior heating system, five-year heater
warranty
u Three-year controller warranty
u Selectable RS232 or RS485 digital
communication
u Four recipes of ten steps each
(40 programming steps total)
u Unlimited loops to any step
u Choice of coolants
u Three standard sizes
TYPICAL AIRFLOW PATTERNS
Model 924E
PROGRAMMABLE PROFILING INTERFACE
u Ease of Use: Arrow buttons to change setpoint; Pressing the INFINITY
button for two seconds returns you to the Home Page displaying process
temperature and setpoint no matter what other mode you are in. Also
contains programmable EZ-Keys enabling simple one-touch operation of
repetitive user activities.
u Profiling: Ramp and soak programming includes four recipe files of up to 10
steps each; 40 total steps for greater process flexibility. Power interruption
feature resumes profile if desired after power restoration. A real time clock
allows for automatic oven start up based on a date and time.
u Computer Interface: Controller communication includes EIA 232/485
Modbus® RTU and supports network connectivity to a PC or PLC.
Model 925E
Model 926E
Minneapolis • shanghai • Berlin • singapore • hsinchu • tokyo
900 SERIES DOOR OPTIONS
OPTIONS
ree basic models of doors are oered; Ported with Window, Blank, and
Ported Door. All feature durable stainless steel interior, positive latching,
removable gaskets and quality construction
designed for continuous use. All doors have a shelf
built into the door. All ports are provided with a
rubber plug. Windows are multi-pane with
desiccant material added to prevent
internal condensation during low
temperature operation.
Ported Window Door
Blank Door
Ported Door
900 SERIES 924E 925E 926E
physical specifications
Chamber size (width x depth x height)
Capacity in cubic feet (Liters) 0.4 ft
Overall size (width x depth x height)
Approx. Weight
FUNCTIONAL SPECIFICATIONS
Temperature Range
Average Heat-Up Rate (Deg./Min)
Average Cool-Down Rate (Deg./Min)
Temp Control
Live Load Capacity
Heater Cap. (KW) 2 2 2
Power Draw
Air Flow
2
2
3
(Amps) 18 20 20
Watts 500 700 1000
Temp
10 x 10 x 7 in
25 x 25 x 18 cm
17.5 x 18.5 x 11 in
44 x 47 x 28 cm
-100 to +525
-73 to +274OC
1
Horizontal 50 cfm
3
(11.3) 0.78 ft3 (22.1) 1.78 ft3 (50.4)
38 lbs.
17 kg
O
F
72
40OC
46OF
26OC
± 0.25OF
± 0.14OC
O
F
-85
-65OC
(24 lps)
Warning: Not for use with flammable or combustible materials. If your process has
flammable solvents, contact Despatch.
O
F
14.5 x 11 x 8.5 in
37 x 28 x 22 cm
17.5 x 19 x 19.5 in
44 x 48 x 50 cm
58 lbs.
26 kg
-100 to +525OF
-73 to +274OC
32OF
18OC
27OF
15OC
± 0.25OF
± 0.14OC
-85OF
-65OC
Vertical 150 cfm
(71 lps)
20 x 14 x 11 in
51 x 36 x 28 cm
35 x 24.5 x 15.5 in
89 x 62 x 39 cm
102 lbs.
46.5 kg
-100 to +525OF
-73 to +274OC
20OF
11OC
41OF
23OC
± 0.25OF
± 0.14OC
-85OF
-65OC
Horizontal 175 cfm
(82.51 lps)
u IEEE488 CONVERTER: An IEEE488 to
RS232C/485 selectable converter bus
option may be used to interface between
the control and an IEEE488 bus controller.
The converter works through the control
interface, allowing compete access to all
controller parameters.
u PORTS: Access ports with plugs may
be provided in any specified location on
surfaces indicated below.
924E Top, Bottom, Left Side
925E Bottom, Both Sides
926E Top, Bottom
choice of coolant
Each model is available with the following
cooling types:
u High pressure (HP) liquid carbon dioxide
) best for when chamber use is low
(CO
2
and cylinder will sit idle for long periods
of time.
u Low pressure (LP) liquid carbon dioxide
) best if chamber usage is high and
(CO
2
cylinder will not sit idle.
u
Liquid nitrogen (LN2) gives the most cooling
effect per pound and is more inert the CO2.
In addition optional dual cooling packages
are available: HP CO2/LP CO2, LN2/HP CO2,
/LP CO2
LN
2
Footnotes: 1. Cooling Rates are approximate and represent
the average rate achieved over the stated temperature
range with an empty chamber. Actual cooling rate achieved
may vary depending on the temperature range, the type
of cooling, the pressure of the gas, and other factors.
Additionally, all cooling rates stated are for the condition
when the controller is not cycling the gas flow. The controller
will slow the rate of cooling as the temperature nears
set-point, so as to not overshoot the set-point. 2. At steady
state conditions. 3. A three wire 6 ft. (1.8m) power cord is
provided (120V single phase).
service and technical support
service parts: 1-800-473-7373
international service/main: 1-952-469-8230
service fax: 1-952-469-8193
service@despatch.com
gloBal headquarters
phone: 1-888-DESPATCH (1-888-337-7282)
international/main: 1-952-469-5424
fax: 1-952-469-4513
sales@despatch.com
8860 207th Street West
Minneapolis, MN 55044 USA
www.despatch.com
© 2010 Despatch Industries. All rights reserved. Despatch is a registered trademark of Despatch Industries in the U.S. and other countries. 900 Series 6-10
Loading...