Model Overview - Buhler PKE-511 Bedienungs- Und Installationsanleitung

Model Overview

The PKE 5 Peltier cooler family includes several types which may be categorised by two criteria:
1) Cooling capacity and maximum ambient temperature
2) Number of heat exchangers
These criteria can be specified in the model number as shown in the table below. Please extract the part number for the
cooler fulfilling your requirements from the type code on page 4.
Application:
Max. ambient temperature:
1 heat exchange
2 heat exchanger
The general specifications can be found in the table below. On the next page are the performance curves and the
specifications for each cooler. In the table below that there is an overview of the heat exchanger's data.
Description
The PKE coolers are controlled by a microprocessor. The
different operating characteristics of the heat exchangers
are established at the factory.
Menu-guided with three keys it is easily possible to adapt
settings to the specific requirements of any application.
The outlet dew point can be set in a range of 2 to 20 °C
(36..68°F). It is factory preset to 5°C (41°F).
Warning limits for high or low temperature can be set
relative to the chosen outlet dew point
t
temperature the range is
a
For high temperature it is
both is 3°C.
When the warning limits are exceeded (e.g. at start-up) this
is signalised by a flashing display and the status contact.
The status contact could be used to control the sample gas
pump so that the gas flow is turned on when the cooler
reaches the desired temperature.
DE 44 0012
10/2013
Page 2/4
40 °C
PKE 511
PKE 512
2nd no. = 1
t
. For low
a
1..3°C (minimum 1°C / 34°F).
t
+1..7°C. Factory preset for
a
Standard
50 °C
PKE 521
PKE 522
2nd no. = 2
Technical Specifications for All Models
Ready for application
Ambient temperature
Factory set dew point
Protection class
Material of housing
Packing dimensions appr.
Weight including heat
exchanger(s)
at 24 V DC
Power supply
Power consumption
Status output
Electrical connectors
Standard applications
(PKE 511, 512, 521, 522) plugs according to DIN 43650
3rd no. = 1
3rd no. = 2
after max. 10 Minutes
+5 to 40 °C/ 50 °C
5°C
IP 20
stainless steel
350 mm x 220 mm x 220 mm
appr. 7,5 kg
appr. 6 kg
115 V AC, 230 V AC
or 24 V DC, 50/60 Hz
max. 120 VA
max. 230 V AC, 150 V DC
2 A, 50 VA, dry
Potential-free