Manual

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{s

}{CR} at the external device where s

indicates the

desired state of the controller (as described in Table 8) and

must be either a 1 or a 2.

Codes Defining the State of the Programmable Temperature Controller

Code Definition

1 RUN mode; control to the setpoint temperature

2 STANDBY mode; do not control; wait for further input

3 Probe error 1 (probe disconnected from controller)

Overheat of the Thermo Container. This occurs after approximately 3

4 minutes of constant heat output with no sensed temperature rise in the

Thermo Container.

5 Probe error 2 (temperature reading is above allowable limit)

TABLE 8

NOTE: Only codes 1 and 2 will be accepted by the Programmable Temperature Controller.

Codes 3, 4 and 5 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.

VI. REMOTE OPERATION USING RHEOCALC

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.