The Martel LC-110 and LC-110H are mA (loop) calibrators designed to take the loop calibrator class to the next level. The new LC-110 series features a user friendly interface with dedicated buttons and a rotary encoder (Quick-Set
Knob). This combination dramatically reduces the time it takes to measure, or source voltage or current and power up a loop. The rugged case is contoured to easily fit a technician’s hand and the large back lit graphics LCD is best in class.
The LC-110H differs from the standard LC-110 in that it incorporates HART communications and supports a select set of the HART universal and common practice commands. This unique feature allows the LC-110H to be used as both a loop calibrator and communication tool.
In the communicator mode the user will be able to read basic device information, perform diagnostic tests, and trim the calibration on most HART enabled transmitters. In the past, this could only be done with a dedicated communicator, high-end multifunction calibrator costing thousands of dollars, or a laptop computer with HART modem. The LC-110H will allow many more technicians to service and support HART devices.
In addition to HART communications, we also gave the user the ability to get information out of the LC-110H. Need to quickly document the parameters of all the HART transmitters in your plant? Just add the BetaLOG HART software/cable to capture and upload to twenty configurations in either (.csv) or (.txt) format.
Martel did not stop there! How about the ability to data log or record data on a particular transmitter for troubleshooting? The data log tool features selectable capture interval from 1 to 60 seconds and a logging capacity of 9800 records or 99 individual sessions. Each data sample contains the LC110H measurement, all four process variables, and the standard status conditions.
Operation
The LC-110 & LC-110H utilizes a rotary encoder (Quick-Set Knob) to set the output(mA) and also to select the function to implement. The Quick-Set Knob features an integral push button that you press to enter a selection. A dedicated menu key brings up a list of functions. The Quick-Set interface highlights an item on that list, and then pressing the knob (clicking it) selects that item to drive further in the menu. The “Menu/Exit” key is used to go back to the previous menu or exit from menu structure into measure/source mode. All functions and HART commands are accessed in this manner. When used as mA calibrator only, there are dedicated keys for automatic step and ramp generation as well as keys to perform a quick zero and span (4mA, 20mA and 25% steps).