Brookfield Temperature Controller, Model 106 User Manual

Page 19

Brookfield Engineering Labs., Inc.

Page 19

Manual No. M/98-206-A0402

The actual response to the above command will be

RS1004F2{CR}.

The last digit indicates that

the system is in stand-by mode (see Table 8).

4) To change the operating mode, enter

RA{st}{CR}

at the external device where st indicates the

desired state of the controller (as described in Table 8) and must be either a 1 or a 2.

s t Codes Defining the State of the Programmable Temperature Controller

C o d e

D e f i n i t i o n

R U N m o d e ; c o n t r o l t o t h e s e t p o i n t t e m p e r a t u r e

S TA N D B Y m o d e ; d o n o t c o n t r o l ; w a i t f o r f u r t h e r i n p u t

P r o b e e r r o r 1 ( p r o b e d i s c o n n e c t e d f r o m c o n t r o l l e r )

O v e r h e a t o f t h e T h e r m o C o n t a i n e r. T h i s o c c u r s a f t e r a p p r o x i m a t e l y 3

m i n u t e s o f c o n s t a n t h e a t o u t p u t w i t h n o s e n s e d t e m p e r a t u r e r i s e i n t h e
T h e r m o C o n t a i n e r.

P r o b e e r r o r 2 ( t e m p e r a t u r e r e a d i n g i s a b o v e a l l o w a b l e l i m i t )

TA B L E 8

NOTE:

Only codes

and

will be accepted by the Programmable Temperature Controller.

Codes

3, 4

and

are indications only. All five codes may be returned by the Pro-

grammable Temperature Controller to the connected device (i.e. PC or terminal).

Any command other than those listed above sent to the Programmable Temperature Controller
will cause the controller to respond with a question mark

(?{CR}).

NOTE: Temperature/Time programs entered in stand-alone mode (i.e. from the Programmable

Temperature Controller front panel) cannot be executed in the external mode via the RS-
232C port. The commands explained above are the only means with which to control the
Programmable Temperature Controller.

RHEOCALC©

, a software program available from Brookfield Engineering Laboratories that controls

the operation of the Brookfield DV-III+ Rheometer, can also be used concurrently to control the
Programmable Temperature Controller in its external mode.

VII. ERROR MESSAGES AND FAILSAFES

If the display shows an error message or there is a continuous “beeping” from the piezo buzzer, you
are in one of the following error conditions:

1) The probe has become disconnected from the Programmable Temperature Controller. Plug the

probe back in to the Programmable Temperature Controller to correct the error.