BioLAB BCLT-201 User manual

Operation Manual
Low Temperature Circulator
BCLT-201
Thank you for Choosing Biolab products. Please read the “Operating Instructions” and
“Warranty” before operating this unit to assure proper operation.

Index
I. pplications................................................................................04
II. Specifications.............................................................................04
III. Working principle........................................................................05
IV. Guidelines for use and operation..........................................06
V. Maintenance...............................................................................14
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Low Temperature Circulator BCLT-201

Warning: The instrument can not provide the designed protection
for operators who do not follow the right procedures and requirements given by the
manufacturer.
Warning: ll solutions must be handled with care according to the lab’s safety regulation.
Please make a reference to the related material safety data sheet. Wear the lab-gown, goggle
and rubber gloves all the time. Be care of hot reagents.
Warning: Be aware of the risk of electric shock. Only the trained professionals are permitted to
open the face panel or back cover.
Low Temperature Circulator BCLT-201
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01 pplications
BCLT 200 series Low Temperature Circulator, thanks to its features such as highly precise and
stable temperature control and fast heating and cooling, has been widely used in precise and
thermostatic control equipment in sectors such as petroleum, physics, chemical industry,
pharmacy, and environmental protection. You may set its working temperature depending on
your needs. In addition, the circulator features various safety protection designs, reliable
performance and durability.
02 Specifications
Capacity 6 L
Temperature Range -5°C ~ 200°C
Temperature Stability ±0.03°C
Ambient Temperature -20 ~ 0°C
Pump Flow Rate 10L/min
Pump Capacity Pressure 0.35 bar
Top Opening 160Lx160W mm
Inner Dimension (WxDxH) 320Lx180Wx150H mm
Outer Dimension (WxDxH) 400Lx250Wx65HH mm
Weight 25 kg
Control PID
Display 0.1°C
Temperature Sensor PT100
Refrigerant R134a
Refrigerating Power 250 W
Heating Power 2000 W
Power Supply 220VAC±10% 50Hz
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Low Temperature Circulator BCLT-201

03 Working Principle
1. Principle block diagram
2. Principle
The circulator displays with a high-brightness LCD screen and measures temperature with a
high-precision sensor. It feedbacks the measured temperature to CPU in a real-time manner,
and then the fuzzy PID calculates a set of appropriate duty ratio to control heating equipment,
while the mixing device is constantly circulating water in the bath so that water temperature in
the bath becomes more even. ll of these, along with the powerful refrigeration system,
accelerate realization of the required thermostatic status. With the imported compressor and
environment-friendly refrigerant R134a, the refrigeration system reduces temperature to -
20 . This closed loop system maintains the bath temperature by ±0.03 promptly and ℃ ℃
effectively.
Low Temperature Circulator BCLT-201
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04 Guidelines for use and operation
1. Component parts
Front view
1. Heating circulation control 2. Bath cover 3. Refrigeration switch
4. Handle 5. Drain valve 6. Radiator grid
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Low Temperature Circulator BCLT-201








 
!"
#$
%  
&$
Low Temperature Circulator BCLT-201
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
"'
$(
2 Instructions for use
( (
(( )  *( +,
    ( + (  -+-
  +  .  *        *  
(   ")
$  /,  ( 0      ( ( ,
(   +   12* (      ,   (
 (   (+ (*2+
 *  ( 3.   +,   *   , + (
  ( +   +  PV:   +4 SV:
 + Time: + *   *(+
*4* + (+
  (+ 1,   * +    * ( 
+ 
&5((++
6*(( 4
4(7 4+7 4*7 4+
+7
47 4
3 Brief introductions to control operation
 $ ( *       + 8$,    (
     (      ( ) + 9
(  + *,:( 
 $  (          (          (
+  ,  ( *+(-

 2*(+,(+,  ( (
*   *+(((+(
;,
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Low Temperature Circulator BCLT-201

(++ : (
( (
+(+ 9, ( (
*   *+((+
2+4
Parameter Function Setting range Default
value
8+ /&&～&&&5 &&5
.(  +     
.(  -  + 
    (  (     #,
(        ( +
*
&～&&&
&
8  +  +  (
(    +      (
23,  <<+ (+

/&&～&&5 /&&5
8((  +  +  (
(  +(((
23,  <<+ (+
  9(  +  +
+   (+
(23
&&～&&&5 #&&5
;
.  +  ( (
  +    *+
(     +,    
    (
  (
/&&～&&5 &&5
+  ( (
        (    
,  (  <<  +    +
  9(  +   (
    (  +  ( 29

&～%+
&+
Low Temperature Circulator BCLT-201
www.biolabscientific.com
9


 +&&&(

&～


&
4. Preparations prior to use
=>.((0 0(: ((
&++(( ++  (+)++0 
2*((? (0 ,((* 
(+,(0 *+++
(( +++ (0 ='*
((+)+, +*** >
2*()++ ,1( (
'*((0 ,( (+* (( +(
 7 0   ( ((
 2*(0   ,((
www.biolabscientific.com
10
Low Temperature Circulator BCLT-201

9( *() '*
 *,* +( '*
 *),+(,( 
(, ?)*((( 
 @0 0(+( , 
(+**+ 9+1*)+,
(+ **(( 
+(( 
$+0+ : - (",(
($( , +( :0/
 ((  , ?,((
9( +(**(( 142
A&&B
CA&&B
.A&B &B)A&B
 #&B)
Low Temperature Circulator BCLT-201
www.biolabscientific.com
11

"D
. Precautions
=>9(+  (( ((
+
(( *** 
=>'*(( 
+(+
=>'( *+((((((

*+ 
=>'*() ,+(, ((
)***:*0 
6. Troubleshooting
Commonly-occurring
trouble Possible cause Solutions
;+
;()

.(
)

(  
.((,
(


$((
.((
(
@((

.((
(
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Low Temperature Circulator BCLT-201

8* .( 
(  
.+
   
8*
8 ? 
((
+

.( 
(  
?
;+
*( *
, *
.( 
(  ,
*  (
 *
@(

 <<+
8
05 Maintenance
9(++++' 
  + ,++ 
+*(+*4
=>(  ?) *+, (
 ((+( &E9(+(/
(, ( - 
=>+: *(+ , 
((+ ,(+((((
(;(()
((((( + 
=>'*((+ ,(+
((?+(
=>9:,(0(***
(, *(+ , (, (
,(+*
=>$? ****
Low Temperature Circulator BCLT-201
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Low Temperature Circulator BCLT-201