287
F
FURNACES
High Temp. Chamber, 1400°C, 1500°C, 1600°C
RHF Series, 1400
°
C, 1500
°
C, 1600
°
C, High Temp Silicon Carbide
Heated Furnaces
RHF 16/3/3508P1
Model
Max
temp
(°C)
Heat
up
time
(mins)
Dimension
Vol.
(Liters)
Max
power (W)
Thermocouple
type
Weight
(kg)
Power supply
required per
phase
Inside (mm)
Outside (mm)
Supply
Required
(W)
RHF 14/3
1400 33 H120xW120xD205 H655xW435xD610
(905)
2.9
1900
4500
R
42
a1
=30A,
a2
=15A
RHF 14/8
1400 22 H170xW170xD270 H705xW505xD675
(990)
7.8
3200
8000
R
64
a1
=50A,
a2
=25A
RHF 14/15
1400 35 H220xD220xD310 H810xW690xD780
(1105)
15
2900
10000
R
125
a1
=62A,
h3
=22A
d3
=38A
RHF 14/35
1400 38 H250xW300xD465 H885xW780xD945
(1245)
35
6000
16000
R
179
h3
=35A,
d3
=60A
k3
=35A
RHF 15/3
1500 45 H120xW120xD205 H655xW435xD610
(905)
2.9
2000
4500
R
46
a1
=36A,
a2
=18A
RHF 15/8
1500 40 H170xW170xD270 H705xW505xD675
(990)
7.8
3500
8000
R
61
h3
=17.5A,
d3
=30A
b3
=38A,
g3
=17.5A
RHF 15/15
1500 46 H220xW220xD310 H810xW690xD780
(1105)
15
3000
10000
R
125
a1
=75A,
h3
=25A
e3
=43A
RHF 15/35
1500 46 H250xW300xD465 H885xW780xD945
(1245)
35
6200
16000
R
178
h3
=35A,
e3
=60A
g3
=35A,
j3
=5A
RHF 16/3
1600 42 H120xW120xD205 H655xW435xD610
(905)
2.9
2300
4500
R
42
a1
=36A,
a2
=8A
a3
=30A
RHF 16/8
1600 35 H170xW170xD270 H705xW505xD675
(990)
7.8
4000
8000
R
61
h3
=18A,
e3
=29A
b3
=34A,
g3
=18A
k3
=18A
RHF 16/15
1600 58 H220xW220xD310 H810xW690xD780
(1105)
15
3500
10000
R
140
a1
=73A,
h3
=25A
a3
=42A,
k3
=25A
RHF 16/35
1600 56 H250xW300xD465 H1530xW900xD1020
(1245)
35
1100
16000
R
270
h3
=40A,
e3
=62A
g3
=37A,
k3
=40A
Standard Features:
●
1400°C, 1500°C or 1600°C maximum operating temperature.
●
3, 8, 15 or 35 Liter chamber volumes.
●
Silicon carbide heating elements, providing long life at elevated
temperatures & able to with stand the stresses of intermittent operation.
●
PID controller, with single ramp to set-point & process timer.
●
Controllers extend heating performance by compensating for the
effects of element ageing.
●
Hard wearing refractory brick hearth and door surrounds.
●
Low thermal mass chamber insulation for energy efficiency & rapid
heating & cooling.
●
Thermocouple type R.
Typically reaching 1400°C in under 40 minutes the RHF range provides rapid
heating and is ideally suited to the rigorous firing cycles demanded from
laboratory furnaces.
Options:
●
2 phase electrical supply for 3 Liter models (& for RHF 14/8)
●
Over-temperature protection (recommended to protect valuable
contents & for unattended operation)
●
8 or 20 segment programmer
●
RS232 communications
●
A range of furnace tables & floor stands are available.
Power Supplies for Silicon Carbide Furnaces:
The characteristics of the control systems that are used with silicon carbide elements result in maximum power
supply requirements that are not as intuitively derived as those for furnaces using other heating technologies.
For this reason a more detailed description of the maximum power supply that is required per phase has been
included in the specification table.
Continuous operating temp. is 100°C below maximum temp. Holding power is measured at the continuous operating temp.
a1
=Single 200-240V,
a2
=380-415V 2 phase + N,
a3
=200-240V 3 phase delta,
b3
=200-208V 3 phase delta,
d3
=200-220V 3 phase delta,
e3
=230-240V 3 phase delta,
g3
=380-415V 3 phase no N,
h3
=380-415V 3 phase + N,
j3
=440-480V 3 phase no N,
k3
=440-480V 3 phase + N.
