Brookfield DV-III Rheometer - Manual (Page 19)

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IV. THE OPTIONS MENU
The OPTION key is used to display the Options Menu screen. The Options Menu provides choices
of the following options:
OPTIONS MENU
1 PRINT 4 C -> F
2 ALARMS 5 CGS -> SI
3 DATA 6 HSK ON
Figure 19
1 - PRINT set modes, when a serial printer is attached
2 - ALARMS setting-high, low, and motor On/Off limits
3 - DATA review of captured data
4 - C TO F choice of temperature display
5 - CGS TO SI choice of CGS or SI units
6 - HKS (ON/OFF) handshake serial printer communication parameter
IV.1 Print Options
The DV-III is equipped with an RS-232 compatible serial output, which may be used with a serial
printer. The output characteristics are described in Appendix G.
The DV-III is designed to print with an X-on/X-off protocol, whereby the rheometer will not send
test data to the printer unless and until the printer sends it a signal saying that it is ready to receive
data. If the DV-III cannot tell that the printer is ready or connected, it assumes that the data has been
received and printed. Unfortunately, there is no design standard for the X-on/X-off communication
between printer and the transmitting device (DV-III). If you are not using a Brookfield serial printer,
you may have to experiment with the HSK ON/OFF setting to see if you can use the X-on/X-off
protocol. If possible, we suggest setting HSK to ON. To check your system, we suggest the
following:
1) Setup the printer and connect to the DV-III.
2) Set the DV-III to PRTN mode.
Press the OPTION key.
Press NUMBER 1 in the Options Menu.
Press NUMBER 3 to set PRTN.
3) The screen will change to the Options Menu.
4) Press NUMBER 6 to read “6 HSK On”.
5) Press the CANCEL key to return to the main screen.
6) Enter a motor speed.
7) Press the NEXT key.
This should cause the printer to print one line of data. If there is no communication between the DV-
III and the printer, a message screen will appear advising that the printer is not ready (Figure 20):