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HEATING BLOCKS

HEATING BLOCK

FEATURES

Mini heating block / digestor units are suitable for COD’s, thermal digestions and general test tube heating applications in the temperature range of ambient +5ºC to 200ºC. Temperature control is microprocessor controlled using PT100 input sensor and a solid state relay output. A three position

setpoint selector switch selects either one of two preset temperatures or a continuously variable setpoint control. The preset temperatures are factory set to 100ºC and 148ºC respectively, and are user adjustable to any temperature within the range of ambient +5ºC to 200ºC. A selectable timer, 0-120

minute, for automatic shut-off is also fitted as standard. Aluminium block area – 120 x 120mm. Hole depth – 55mm.

Microprocessor Control Unit:-

incorporates a microprocessor controlled temperature indicator, a selectable timer, 0-12- minutes for automatic shut-off, a three position setpoint selector switch which selects either one of two preset temperatures or a continuously variable setpoint control. The preset temperatures are factory set to 100ºC and 148ºC respectively, and are user adjustable to any temperature within the operating temperature range of the specific model.

Digestors consist of three parts: Microprocessor control unit, heating block unit and tube rack..

Remote cables between controller and heating block come 1,5m long as standard. Control units and heating block units are interchangeable.

DCA 45 – temperature range +50ºC to 450ºC

DCA 20 – temperature range Ambient +5ºC to 200˚C

CONTROL ACCURACY:- ± 0.2ºC @ 100ºC

Heating Block Units:-

Machined aluminium block housed in a well insulated powder coated mild steel housing with stainless steel surround. The element is a easily replaceable clamp on type incaloy element.

Test tube racks:-

STANDARD – All stainless steel with three sides double walled and insulated plus toughened glass front safety shield. ECONOMY – All stainless steel with single walled sides and open front and back.

P.I.D. microprocessor temperature control. Digital indicator: 120 minute digital timer for automatic shut-off.

SELECT CONTROL UNIT, HEATING BLOCK AND RACK

CAT NO  
DCA 45 DIGITAL CONTROL RANGE 50° C TO 450° C
DCA 20 DIGITAL CONTROL RANGE AMBIENT +5° C TO 200° C

HEATING BLOCKS

CAT NO   NO. HOLES HOLE SIZE
D18 SINGLE 18 HOLES 47 mm DIA x 60 mm DEEP
D21 SINGLE 21 HOLES 34 mm DIA x 60 mm DEEP
D40 SINGLE 40 HOLES 28 mm DIA x 60 mm DEEP
D60 SINGLE 60 HOLES 23 mm DIA x 60 mm DEEP
D105
SINGLE 105 HOLES 16.5 mm DIA x 60 mm DEEP
D18/2 DOUBLE 2 x 18 HOLES 47 mm DIA x 60 mm DEEP
D21/2 DOUBLE 2 x 21 HOLES 34 mm DIA x 60 mm DEEP
D40/2 DOUBLE 2 x 40 HOLES 28 mm DIA x 60 mm DEEP
D60/2 DOUBLE 2 x 60 HOLES 23 mm DIA x 60 mm DEEP
D105/2 DOUBLE 2 x 105 HOLES 16.5 mm DIA x 60 mm DEEP

TUBE RACKS (2 RACKS ARE REQUIRED FOR DOUBLE BLOCK UNITS)

CAT NO ROWS HOLES/ROW HOLE SIZE  
D18 3 6 48 mm 228 mm
D21 3 7 35 mm 228 mm
D40 4 10 28 mm 228 mm
D60 5 12 22 mm 228 mm