WT-3600 TON CONTAINER WEIGH TRUNNION OPERATION INSTALLATION AND SERVICE MANUAL 366 CIRCLE OF PROGRESS POTTSTOWN, PA 19464 (610)323-2250 FAX: (610)323-0114
TABLE OF CONTENTS CONTENTS SECTION 1 . 0 DESCRIPTION. SECTION 2 . 0 PREPARATION FOR USE 2.1 RECEIVING INSPECTION 2.2 SHIPMENT 2.3 SITE SELECTION 2.4 INSTALLATION 2.5 CONNECTION TO DISPLAY/TRANSMITTER SECTION 3 . 0 TROUBLE SHOOTING SECTION 4 . 0 SERVICING 4.1 CHECKING THE SUMMING BOX CONNECTIONS 4.2 CHECKING FOR TRUNNION DAMAGE/INTERFERENCE 4.3 CHECKING THE LOAD CELL SECTION 5 . 0 SPECIFICATIONS SECTION 6 .
SECTION 1.0 DESCRIPTION EAGLE MICROSYSTEMS WT3600 Weigh Trunnion was designed specifically for weighing standard ton containers for Chlorine and Sodium Dioxide. Rollers made of UHMW plastic on stainless steel axles allow easy ton rotation and require no greasing or other preventive maintenance. Two sealed stainless steel, electronic load cells provide an accurate weight reading. Each WT3600 weighs less than 50 pounds so it is shipped via parcel service and can be handled and installed by one person.
2.4 INSTALLATION 1. The WT3600 is “rolled up” prior to packaging and shipment. Prior to installation, the scale assembly must be “unrolled” so that the flexible conduit is straight on either side of the junction box. Rollers should face upward. 57" 19" 17" 19" FIGURE 1: Anchor Bolt Spacing 2. Figure 1. shows the mounting pattern for four 7/16” diameter mounting studs (by others) as well as the minimum spacing between weigh trunnions for multiple trunnion applications. 3.
2.5 CONNECTION TO DISPLAY/TRANSMITTER Refer to FIGURE 2 and 2a. Several configurations are possible. Note that the “Channel 2 Input” option allows the cables for two scales or “banks” of scales to share a single conduit back to a dual channel instrument. This option must be specified when ordering. WT #1 CHAN#2 OUT +E+S-S-E +E+S-S-E CHAN#1 OUT CHAN#2 OUT WT #2 SINGLE CYLINDER OR SUMMED BANK OF CYLINDERS +E+S-S-E WT #1-2 BANK #1 CHAN#1 OUT +EXCIT.
SECTION 3.0 TROUBLE SHOOTING The following is a list of potential problems and likely cures. 1. Inaccurate but repeatable weight readings: a. Recalibrate the system (see instrument manual) 2. Inaccurate, non-repeatable weight readings. 3. Check the WT3600 trunnions for damage or interference (Sect. 4.2). 4. Check for bad load cell (Sect. 4.3). 5. Blank or drifting display: a. Consult the instrument manual. b. Look for loose connection in hook-up cable at the instrument or in the Summing Box(Sect. 4.
4.2 CHECKING FOR TRUNNION DAMAGE / INTERFERENCE. 1. Remove the ton container. 2. The 2 trunnions that support the ton container are hinged at the end where the pipe enters. Lift the top casting at the opposite end to expose the load cell. The load cell has a small button that faces up. This contacts a shock pad that is installed in the top casting directly above the load cell. This pad consists of a metal plate attached to a rubber backing that is glued or taped in place.
SECTION 5.0 SPECIFICATIONS CONSTRUCTION: Load Cell: Stainless Steel Trunnion Castings: Aluminum Axles & Hardware: Stainless Steel Rollers: UHMW Plastic Shock Pads: Fabcel 300 ® Conduit & Fittings: PVC Junction Box: Cast Iron FINISH: Trunnion Castings: Acrylic Paint Junction Box: Clear Acrylic Paint CAPACITY: 4000 Lb SAFE OVERLOAD: 200% of Rated Capacity. ULTIMATE OVERLOAD: 300% of Rated Capacity. NOMINAL OUTPUT: 0.5 mV/V at full scale EXCITATION VOLTAGE: 5 to 15 VDC OPERATING ACCURACY: 0.
