3 Technical data
13 K-437 Operation Manual, Version A
3.2 Technical data overview
Table 3-6: Technical data K-437
Digest System K-437
Dimensions (W x D x H) 435 x 560 x 780 mm
Connection voltage 200-230 V ± 10 %
Frequency 50/60 Hz
Power consumption max. 2200 W
Power input 10 A
Weight (net) (including digestion tubes) 35 kg
Installation category II
Degree of pollution 2
Environmental conditions
Temperature
Altitude
Humidity
for indoor use only
5 - 40 °C
up to 2000 m
maximum relative humidity 80% for temperatures up to
30°C
Temperature range 50 °C to 420 °C (450 °C)
Temperature drift ± 5 °C > 200 °C / ± 2 °C < 200 °C
Table 3-7: Technical data COD Accessory
COD Accessory
Thermal stability of heating block ± 2 °C at temperatures < 200 °C
Heating up period Up to around 150 °C within 10 minutes
3.3 Materials used
Table 3-8: Materials used for the K-437
Component Material designation Material code
Housing Sheet steel DC01 + EVZ DIN 17162
Coating Polyester/epoxy PEP 31
Heating block Aluminium AlMgSi 1 DIN 3.2315
Insulation Thermal Ceramics 800 X-607
Rack Sheet steel, stainless 1.4301
Glass components Borosilicate 3.3 DIN/ISO 3585
Hose Ethylene/propylene terpolymer rubber EPDM
Table 3-9: Materials used for the COD Accessory
Component Material designation Material code
Rack COD Steel, stainless 1.4301
Digestion tube holder COD Steel, stainless 1.4301
Preparation block COD Aluminium AlMg4.5Mn H111 En-5083
Rack condenser COD PMMA
Stand for condenser COD PP gray
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