ANDERSON-NEGELE Load Stand II Installation And Operating Instructions Manual Download

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Specification

Load Stand

II Weighing Cells

Technical Features

Excitation Voltage - Operating Range

Maximum Current

Recommended Supply Voltage

Functional Integrity

Humidity

Protection Class

Materials

Sensor

Junction Box

12...30 V DC Half-Bridge

15.52 mA @ 12 VDC excitation

12 V DC

2 x rated load (compression)

100 % Non-condensing

Designed for outdoor applications

Pedestal: Carbon Steel 1.0044

(ASTM A53 GR)

Flanges: Carbon Steel 1.0459

(ASTM A36)

Finish: Polyester Powder Coating

4 x Microcell II

Plastic or Stainless Steel (ATEX),

included

Measurement Accuracy

Non-Linearity/Hysteresis Combined

Repeatability

Rated Output

No Load Output

0.2 % of rated load

320 mV DC @ 12 V DC ±1 %

±50 mV

Temperature ranges

Ambient Temperature Range

Operational Temperature Range

Storage Temperature Range

Standard: -18...38 °C (0...100 °F)

Mid: 10...66 °C (50...150 °F)

-34...66 °C (-30...150 °F) (outside this

range the accuracy may be reduced)

-34...66 °C (-30...150 °F)

Authorizations

All models

ATEX (option)

Summary of Contents for Load Stand II

Page 1: ...d exactly to ensure proper operation of the unit If you have any questions regarding the product installa tion or commissioning please contact Anderson Negele Support at support under America Phone 800 833 0081 techservice anderson negele com Other countries Phone 49 8333 9204720 support anderson negele com NEGELE MESSTECHNIK GMBH Raiffeisenweg 7 87743 Egg an der Guenz GERMANY Phone 49 0 83 33 92 ...

Page 2: ...tallation 7 Leveling the vessel 8 Checking Output using Anderson Negele Testmeter 9 Operation and Installation 13 Notes 13 Electrical installation 14 General Safety 14 Disconnect requirements for permanently installed equipment 14 Installation 14 Guidelines 14 Installation of the sun shield 16 Installation of a sun shield 16 Calibration 17 Calibration methods 17 Alternative methods for checking ou...

Page 3: ...ecifications described in this document For safety and warranty reasons use of accessory equipment not recommended by the manufacturer or modi fication of this device is explicitly forbidden All servicing of this equipment must be performed by qualified service personnel only This device should be mounted in locations where it will not be subject to tampering by unauthorized personnel Misuse Impro...

Page 4: ... 453 000 kg 25 000 to 1 000 000 lbs per support point The monolithic design becomes an integral part of the ves sel structure for maintenance free weight measurements The sensing elements are field replaceable without taking the vessel out of service The mechanical design of the Load Stand II lends to simpli fied design of the mounting whether by legs or gussets Simple rugged and easy to match end...

Page 5: ...arbon Steel 1 0044 ASTM A53 GR Flanges Carbon Steel 1 0459 ASTM A36 Finish Polyester Powder Coating 4 x Microcell II Plastic or Stainless Steel ATEX included Measurement Accuracy Non Linearity Hysteresis Combined Repeatability Rated Output No Load Output 0 2 of rated load 0 2 of rated load 320 mV DC 12 V DC 1 50 mV Temperature ranges Ambient Temperature Range Operational Temperature Range Storage ...

Page 6: ...d Stand replace the gusset plate with the correct number of holes for bolting to the Load Stand Hardware 1 Anderson Negele provides rubber washer assemblies for the Load Stand top mounting hole connections 2 All other hardware to attach the Load Stand to the ves sel and to the foundation is customer supplied 3 Use specified hardware and bolt sizes 4 Use bolts with sufficient threaded length to acc...

Page 7: ...ad Stands a pry bar may be used at the base of the Load Stand to gently move it into position Caution If the vessel hole pattern does not match up with the Load Stand hole pattern modify the mounting holes on the vessel Do not force the Load Stand into position by hammering or by tightening the mounting bolts Installation a Slowly lower the vessel until it is resting on the Load Stand assemblies A...

Page 8: ...Meter and set the Simulate Test switch to the Test position c Verify the dead weight voltage output of the Load Stand from step 3f d Calculate the change in output as shown in the example Output Change installed output uninstalled output The change in output must be positive Note If an Anderson Negele Test Meter is not available before proceeding refer to Chapter Set up Alternative method for chec...

Page 9: ... If not sufficiently level level the vessel as de scribed in Step 2 8 Checking Output using Anderson Negele Testmeter Example Recording and Analysis of Output for Level Check Load Stand Nr Not installed output no load mV Installed dead weight mV Output change Installed Not installed mV 1 30 90 60 2 15 50 65 3 17 30 13 4 25 30 55 Average Output Change 60 65 13 55 4 48 25 Allowable Range for Output ...

Page 10: ...ut of all the Load Stands and recalculating the Output Change dead weight output no load output e Repeat Steps 2A through 2D until the installation meets the criteria for weight distribution 3 Complete Installation Once the vessel is level complete the installation a Tighten the nuts on the anchor bolts per the local code b Verify readings c Tighten the nuts on the upper bolts 1 2 to 1 turns past ...

Page 11: ...e Dimension DB Bolt Size DH Hole Diameter DW Washer Outside Diameter H Installed Height P Pipe Size R Corner Radius RT Recommended Thickness T Plate Thickness TP Pad Thickness TW Washer Thickness LOAD RATING P A B DH R H T TP DW TW WEIGHT RT XX LOAD STAND II DIMENSIONS DB COMPRESSION TENSION SHEAR LOAD STAND MAXIMUM FRAME LOADS ALLOWED PER AISC 14th Ed ULTIMATE FRAME LOADS TENSION COMPRESSION SHEA...

Page 12: ...ze as the Load Stand II DH and their position should not be more than 1 5 mm 0 6 from their ideal position Level and fill with grout so that there is there is no gap between the Load Stand unit and the foundation This is mandatory to assure proper operation Customer provided loads and thermal expansion must be must be taken into account so that applicable building codes and and usage characteristi...

Page 13: ...nd are based on AISC 14th edition All Load Stands must be selected to resist the combined loading effects for the specific jobsite and building code requirements Load combinations can be found in the applicable building code Conduit entry sized for 3 4 NPT fitting Use sealing washers and flexible conduit liquid tight recommend ed to maintain NEMA 4 rating and to de couple conduit run from the weig...

Page 14: ...djustments Guidelines The procedure below assumes the conduit cable tray has been installed Seal all conduit fittings against water entry Install drain holes at conduit cable tray lowest elevation s to allow condensation to drain Use Belden 3 conductor shielded interconnect cable or equivalent to wire junction boxes together and to the signal processor for lengths up to 305 m 2 000 When wiring cab...

Page 15: ...x is designed for conduit with 0 NPS connector Adapter plugs are required for other connections and wiring to the signal processor 6 Junction boxes must always be securely closed and all unused openings securely sealed with the plugs provided Figure 4 Signal Cable Layout To Indicator Drip Loop Drip Loop Drip Loop Drip Loop To signal processor Conduit run Vessel leg Flexible conduit From other Junc...

Page 16: ...e of the Load Stand 3 Wrap the sun shield around the Load Stand slipping the cutout slots behind the loosened screws 4 Tighten the junction box screws and the horizon tal screw s on the bottom flange 5 Replace the junction box cover Loosen Junction Box screws Re thighten after sun shield is installed Slide sun shield behind junction box and loosened screws Wrap sun shield around Load Stand Slide s...

Page 17: ...Load calibration set lo span and hi span while mov ing material into or out of the vessel This is the preferred method Manual calibration set scale factor counts scale factor weight and zero calibration value without moving materi al This method is less accurate than Live Load calibration A Live Load calibration requires you to move a known quantity of material into or out of the vessel while perf...

Page 18: ...n Problem likely to be noticed shortly after initial installation or on system that previously functioned correctly in cool or overcast weather Loosen nuts on top bolts and inspect top bolts Top bolts free to move in holes If vessel is heated it may be radiating or conducting heat through vessel legs and affecting Load Stand sensors To reduce head radiation conduction a Insulate vessel b Contact A...

Page 19: ...fy which sensor is damaged 5 Verify readings from Steps 3 and 4 are within 700 Ω of each other If not one or more Load Stand sensors are damaged and must be replaced go to Step 7 to identify which sensor is damaged 6 Repeat Steps 2 through 5 for each suspect Load Stand until Load Stand with damaged sensor is located 7 Identify damaged sensor at Load Stand identified in Step 3 4 or 5 a Remove one s...

Page 20: ...ad to earth ground and other lead to white terminal on TB3 check resistance on wires leading from junction box If the reading is less than infinite i e there is resistance short is indicated proceed to Step 5 to identify location If no short is indicated proceed to next junction box in daisy chain disconnecting wires connect ing it to other junction boxes and checking resistance Perform for each j...

Page 21: ... limits of Load Stand clearance holes Resulting side loads affect Load Stand sensors To reduce side loads a Enlarge vessel mounting flange bolt holes to provide additional clearance If support movement and heat radiation con duction have been eliminated as source of error and periodic drift still indicates system is not meeting specifications Appendix A contact Anderson Negele Note If keeping long...

Page 22: ...MA 4X Dimensional drawings Dimensional drawings Load Stand II with Plastic Junction Box IP 66 NEMA 4 Load Stand II 22 6796 kg 50 000 lbs shown Plastic Junction Box IP 66 NEMA 4 Load Stand II 22 6796 kg 50 000 lbs shown Stainless Steel Junction Box IP 66 NEMA 4X ...

Page 23: ...23 Notes ...

Page 24: ...2 4 Notes ...

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ANDERSON-NEGELE Load Stand II, Installation And Operating Instructions Manual

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