Buhler EGK 2 Ex Bedienungs- Und Installationsanleitung Seite 48

Technical Data
ATEX-class
Ready for operation
Cooling capacity (at 25°C)
Ambient temperature
Gas outlet dewpoint (preset)
Power supply
Power consumption
Fuse
Potential-free status outputs (fail-safe)
Protection classelectrically
Housing material
Installation
Dimensions (H x W x D) approx.
Weight w/2 heat exchangers
Display
Status LED with 4 conditions:
Green: Temperature in range
Green flashing: Temperature in range, compressor is running
Red: Temperature off range, cooling operation
Red flashing: Cooler stooped or service required
Heat Exchanger
The energy content of the sample gas and, as a result, the required cooling capacity of the gas cooler is determined by 3 parameters: gas
J t
temperature , dewpoint (moisture content) and flow v. The outlet dew point rises with increasing energy content (heat) of the gas. The
G e
required cooling capacity is determined by the maximum acceptable level of the outlet dew point.
The following table shows cooler performance assuming the following conditions: =120°F and
air (i.e. after the moisture has condensed).If the actual values stay below the parameters
t J
instead of = 120°F, = 160°F and v = 5.7 lpm the values =105°F,
e G
Please contact one of Buhler's application specialists for assistance and further information.
Heat exchanger
1)
Flow rate v
max
t
1)
Inlet dewpoint
e,max
J
1) und 3)
Gas inlet temperature
G,max
Max. cooling capacity Q
max
Gas pressure p
max
D
Pressure drop p (v=150 l/h)
Dead volume V
tot
Sample gas connections
Condensate outlet connections
1)
with maximum heat transfer of the heat exchanger and max. cooling capacity of the cooler
4)
Automatic condensate drainers and glass vessels not available
Please indicate with order
Coolers
45 90 999 EGK 2 Ex, 230V / 50 Hz
45 91 999 EGK 2 Ex, 115V / 60 Hz
Heat exchanger
45 10 023 TS, stainless steel 1.4571
45 10 013 TG, Duran glass
45 01 004 TV-SS, PVDF
45 01 026 DTSstainless steel 1,4571, two streams
45 01 027 DTG Duran glass, two streams
45 01 028 DTV, PVDF, two streams
II 2 G EEx pqem [ia] IIC T4
After max. 20 minutes
> 583 Btu/hr
32-115°F
approx. 40 °F
230V, 50 Hz or
115V, 60 Hz
250 VA (230V)
300VA (115V)
Motor protection switch
250 V / 3 A AC
24 V / 1 A DC
IP 54
Stainless. steel / polyester
Upright or against wall
27.6 x 19.7 x 19.7 in.
approx. 82 lb.
t
e
TS TG
8.8 lpm 4.7 lpm
175 °F 175 °F
355(275) °F 275 °F
427 Btu/hr 218 Btu/hr
2321 psig 44 psig
0.12 psig 0.12 psig
4.2 cu. in. 2.9 cu. in
2)
G 1/4" i GL 14
2)
G 3/8" i GL 25
Dimensions
Performance Data
700
600
500
400
300
200
100
0
32 42 52
Ambient temperature in °F
2 x TS/DTS
2 x TG / DTG
t J
=160°F. Indicated is the v
e G
t J
and , v
e G
J
=160°F a maximum flow rate of v=7.1 lpm could be achieved.
G
TV DTS
2.1 lpm 2*4.2 lpm
150 °F 175 °F
275 °F 355(275) °F
114 Btu/hr 427 Btu/hr
44 psig 363 psig
0.12 psig each 0.07 psig
7.9 cu. in. 1.7/1.5 cu. in.
DN 4/6 tube 6mm
G 3/8" i tube 10mm
2)
NPT-threads upon request
Motor protection switches
The cooler has to be connected via a motor protection switch
9132020009 Motor protection switch mounted
hazardous area for cooler 230V/50Hz
9132020029 Motor protection switch mounted
hazardous area for cooler 115V/60Hz
9132020032 Motor protection switch mounted
hazardous area for cooler 230V/50Hz
9132020035 Motor protection switch mounted
hazardous area for cooler 115V/60Hz
Accessories
44 10 0011 Automatic condensate drainer 11 LD V 38 (SS)
44 10 0044 Automatic condensate drainer AK 20 (PVDF)
44 90 99922 Bracket for mounting AK 20
44 10 005 Condensate vessel GL 1; glass, 0,4 l
44 10 019 Condensate vessel GL 2; glass, 1 l
A000114X
62 72 82 92 102 112
2 x TV
2 x DTV
in lpm cooled
max
can be increased. For example (TG),
max
DTG DTV
2*2.3 lpm 2*1.9 lpm
150 °F 150 °F
275 °F 275 °F
218 Btu/hr 175 Btu/hr
44 psig 29 psig
each 0.07 psig each 0.22 psig
1.5/1.5 cu. in. each 1.3 cu. in.
GL 14 DN 4/6
Gl184 DN 4/6
3)
Values in parentheses due to temperature class
outside
outside
inside
inside
we reserve the right to amend specification
4)
of
of
of
of