The K-114 USB converter for connecting Keller digital pressure sensors and instruments to a Windows based computer has replaced the now obsolete K-104 USB converter.
K-104 (part no: 309010.0008) is now K-114 (part no: 309010.0074) to connect the following digital pressure sensors via screw terminal, e.g. cable versions:
K-104A (part no: 309010.0009) is now K-114A (part no: 309010.0075) to connect the following logger instruments:
K-104B (part no: 309010.0010) is now K-114B (part no: 309010.0076) for connecting the following digital pressure sensors and instruments with a Binder connector or a DIN plug via cable option 3:
The K-114 interface converter is used primarily in conjunction with Keller products that have an RS485 interface, such as Series DCX, Leo Record, Series 3X / 4X or GSM-2.
The RS485 half-duplex signal from connected devices is converted into a USB signal by the interface converter, which can therefore be connected to any desired computer with a USB port.
The electronics in the interface converter and the connected device are supplied via the computer’s USB port. A power supply unit can be connected so that multiple devices may be operated.
Faults on connected devices and damage to them are prevented because the interface converter is electrically isolated. In addition, the computer is protected against damage by an auto-reset fuse that is integrated within the interface converter.
The status LEDs integrated into the housing allow the user to check visually whether a power supply is present, and whether data is being transmitted or received via the RS485 interface. LEDs also clearly display the status of the Echo, Bias Network, Termination and High Speed Mode functions that can be configured with the K-114Config PC software.
The analogue-to-digital converter integrated within the K-114 interface converter enables measurement of the power consumed by connected devices, or their signal voltages, in the 0…50 mA or 0…12 VDC ranges; this data can be visualized with the help of the CCS30 PC software.
The K-114 interface converter replaces the existing K-104 converter, although this model will also remain compatible with all Keller digital products in the future. This means that there is no need to replace existing converters.