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DDS CALORIMETERS OPERATIONS MANUAL V1.1
2022
Website:
www.ddscalorimeters.com
12
Digital Data Systems (Pty) Ltd.
CAL3K Advanced Bomb Calorimeters
www.ddscalorimeters.com
This port can connect to:
Printer
PC
BLUETOOTH Bridge
8.6
CONNECTING TO A PC WITH A RS232 PORT
The PC must have a RS232 port configured to the same speed and a receiving the DDS Windows
Software App must run such as TERA TERM or any virtual port emulator.
The data output is initiated from the CAL3K keyboard or internally.
8.7
CONNECTING TO A PC FOR DATA COLLECTION
This method initiates data transfer on the PC. The DDS Windows Software App will upload data and save
them to the PC memory in a .CSV format. The physical connection can be:
1.
RS232 cable
2.
USB Cable
3.
BLUETOOTH BRIDGE (if no RS232 port, or if USB cable to short)
Configure the DDS Windows Software App to suit any of the above methods.
If a BLUETOOTH BRIDGE is used then the D1-CAL3K port speed must set to 115200 by CMD=54.
The BLUETOOTH BRIDGE has a special application: It converts the RS232 (CAL3K) to a USB (PC). In other
words, if your PC (laptop) hasn’t got a RS232 port then the bridge will work.
8.8
CONNECTING TO A BALANCE
This step is not absolutely necessary. The weight (mass) of the sample can be entered on the keyboard.
The balance connection cable is included in the kit. If the calorimeter is installed near the balance then
we recommend it being connect up. The default balance speed is 2400baud. Set your balance to this
speed! Test the connection by pressing (F5). Then the stable balance weight should show on the display.
If you press (Enter) then the mass is locked. See MASS ENTRY to unlock it.
24 BALANCE SPEED 0
The balance must have the same setup as the CAL3K. The setting is:
Parity
None
Stop bits
1
Data
8 bit
Default Speed 2400
The speed in the CAL3K can be adjusted from 1200 to 38400 baud.