Related Manuals for Rice Lake Master 311
Summary of Contents for Rice Lake Master 311
- Page 1 ™ MASTER 311, 311M and Belt Scale Weigh Frames Installation Manual June 23, 2025 PN 170735 Rev C...
- Page 2 All information contained within this publication is, to the best of our knowledge, complete and accurate at the time of publication. Rice Lake Weighing Systems reserves the right to make changes to the technology, features, specifications and design of the equipment without notice.
-
Page 3: Revision History
June 23, 2025 Updated Selection Criteria and format; added disposal information Table i. Revision Letter History Technical training seminars are available through Rice Lake Weighing Systems. Course descriptions and dates can be viewed at www.ricelake.com/training or obtained by calling 715-234-9171 and asking for the training department. -
Page 4: Table Of Contents
List Parameters for Belt Scale................17 Rice Lake continually offers web-based video training on a growing selection of product-related topics at no cost. -
Page 5: Introduction
Not every application is suited for a belt scale; this has to be analyzed by a Rice Lake Weighing Systems specialist. To achieve the optimum result, the Master™ belt scale series has been developed for a number of applications and for every type of conveyor. -
Page 6: Disposal
Overview The weigh frame model Master 311/711 Series is designed for medium and heavier applications in the process industry, where accuracy and/or legal approval is required. The dimensions are extracted from the construction of the existing, or to-be built, belt conveyor. -
Page 7: Installation
* Proper covers may be required to prevent air flow from interfering with the belt scale. * Side guards and belt skirting should not be in contact with the weighing area of the belt scale. © Rice Lake Weighing Systems ● All Rights Reserved... -
Page 8: Mechanical Installation
MASTER 311, 311M and 711 Mechanical Installation The mechanical installation of a belt scale consists of mounting the belt scale, the speed pickup and the junction box. Three types of scale installation are included in this manual: 311 – a weigh frame that is made to order, lengths will vary. - Page 9 11. Run strings on the conveyor (three before the scale and three past the scale) and shim the idlers to the same plane. Figure 2-5. Run Strings To Same Plane NOTE: Shims are not included with scale. They are available separately. © Rice Lake Weighing Systems ● All Rights Reserved...
-
Page 10: Adjusting 311M Length
MASTER 311, 311M and 711 2.1.2 Adjusting 311M Length 1. Measure the distance between the stringers at the location selected for the belt scale. Figure 2-6. Measure Length Between Stringers 2. Remove angle bracket, flat plate and idler clamp from both ends of weigh frame. -
Page 11: 711 Installation
5. Use the existing hardware from the idler to secure the weigh frame to the conveyor stringers. Idler Clamp Figure 2-9. Installed 711 Weigh Frame 6. Remove the idler clamps from the weigh frame assembly. 7. Place the idler on top of the weigh frame. © Rice Lake Weighing Systems ● All Rights Reserved... - Page 12 MASTER 311, 311M and 711 8. Place the idler clamps on the idler bottom stringer and secure with bolts, washers and nuts. Idler Clamp Idler Clamp Figure 2-10. Install Idler on 711 Weigh Frame 9. Run strings on the conveyor (three before the scale and three past the scale) and shim the idlers to the same plane.
-
Page 13: Splice Box Installation
Commissioning should be performed by service engineers who are trained and experienced with the subject. 2.4.1 Mechanical Adjustments Mechanical adjustments must be made to ensure the scale is free of any tension. If necessary, the load cell can be adjusted. © Rice Lake Weighing Systems ● All Rights Reserved... -
Page 14: Maintenance
MASTER 311, 311M and 711 Maintenance Regular maintenance is essential to prevent errors or unnecessary down time. The supplier does not accept any responsibility for the consequences of not performing the maintenance recommended in this section. Maintenance IMPORTANT: It is important to ensure the safety of personnel during maintenance work and that no accidents will happen. -
Page 15: Dimensional Drawings
Adjustable to order 39.75 in (1009.65 mm) Adjustable to order 30.00 in (762.00 mm) Adjustable to order 4.00 in (101.60 mm) 3.40 in (86.36 mm) Section G-G Figure 3-2. 711 Weigh Frame © Rice Lake Weighing Systems ● All Rights Reserved... -
Page 16: Specifications
Power supply 5-15 VDC (stabilized from electronics) Signal nominal 2 mV/V at 100% load Total Load Cell Build The Master 311/711 Series has a single load cell. Table 3-1 outlines the total load cell build, this value is used for the theoretical calibration. Load Cell... -
Page 17: List Parameters For Belt Scale
Load cell sensitivity mV/V Idler spacing in (mm) Belt angle of incline ° Belt speed ft/s (m/s) Speed pickup: Pulses per revolution Non-driven drum in (mm) Total belt length ft (m) © Rice Lake Weighing Systems ● All Rights Reserved... - Page 18 MASTER 311, 311M and 711 www.RiceLake.com Visit our website...
- Page 20 © Rice Lake Weighing Systems Content subject to change without notice. 230 W. Coleman St. • Rice Lake, WI 54868 • USA USA: 800-472-6703 • International: +1-715-234-9171 June 23, 2025 PN 170735 Rev C www.ricelake.com...
Need help?
Do you have a question about the Master 311 and is the answer not in the manual?
Questions and answers