For 20" and 40" Arm service and calibration contact: Dimensional Inspection Laboratories, 209B Anne Louise Drive, New Braunfels, TX 78130.
Phone 714-545-6337
For Weight and Tray service and calibration contact: Precision Instruments Correction, Inc. 933 Mariner St., Brea, CA 92821.
Phone 714-671-6018