Hach TitraLab KF1000 Series, User Manual, Page: 21 / 68

Section 4 Install accessories
4.1 Install a balance
This accessory is used to automatically send accurate weights to the instrument. The
balance is a laboratory type balance and uses the RS232 communication protocol with no
flow control. When a balance is connected, the window shown at the end of a titration that
lets users enter a weight, shows the value from the balance.
The balance automatically sends the weight and unit to the instrument in textual format:
• Messages end with <LF>, <CR> or <LF+CR>
• The numeric value of the weight must be transmitted before the unit of weight
• Allowed units of weight are g, mg and kg
• The unit of weight specifies the end of the data string used by the instrument
• Space characters are ignored
1. Set the RS232 parameters on the balance to:
• 9600 baud
• no parity
• no handshake
• 8 data bits
• 1 stop bit
2. Connect the balance to the serial port on the rear of the instrument (refer to
Instrument connections on page 8) using an applicable cable.
3. From the home screen, select Settings > Options and make sure that the Balance
option is checked.
4.2 Install the syringe verification kit
The optional syringe verification kit enables the verification of the dispensing system
based on the ISO8655 standard. The test adds different volumes of liquid on a vessel put
on a balance. The weights are used to calculate the real volume added. The real volume
is compared with the nominal volume. The results are used to calculate the error in the
volume added and the syringe precision. There are three verification modes available:
• Fully automated—The balance is connected to the instrument. The system makes the
additions and calculates the results.
• Partially automated—The balance is not connected to the instrument. The user does
the balance readings and the system calculates the results.
• Dispense only—The system only makes the additions. The user does the balance
readings and calculates the results.
The syringe verification kit includes all of the necessary items: dispensing tips, tubes,
syringe holder, pipette holder, support stand, software key and label with the license
number. Make sure to keep the label with the license number. A license key is necessary
to enable the syringe verification option on the instrument. The first time the option is
selected, the instrument shows the MAC address and the Firmware version. Send the
MAC address, firmware version and the license number to the manufacturer or a sales
representative to get the license key.
Note: The license key is only necessary when the option is selected for the first time.
Items to collect:
• Analytical balance with resolution 0.1 mg, repeatability 0.2 mg and uncertainty 0.2 mg
• Temperature sensor
• Deionized water "quality 3" (ISO 3696)
Prepare the syringe verification kit as follows:
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