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CERTIFIABLE DESIGN
The 475 is
designed to meet or exceed the accuracy requirements of the National Institute
of Standards and Technology (NIST) Handbook 44. A certificate of conformance,
Number 92-196, was issued under the National Type Evaluation Program (NTEP) of
the National Conference of Weights and Measures. The certificate is for
capacities of 14.5-145 lb/ft. at belt speeds of 100-800 ft/min. with weighbridge
lengths of 9-20 feet.
EASILY INSTALLED
Adjustable
suspension bushings, adjustable idler arms, and roller alignment trimming screws
permit quick, accurate weigh platform alignment without the need for shims or
special tools.
FLEXIBLE
If your accuracy
requirements increase in the future, simply add another weighing unit in series
with the existing unit (four maximum) to increase your weighing accuracy.
BELT WIDTH
-
35, 100, 200
kg
12"(305) to 54"(1372)
-
350, 1000
kg
42"(1067) to 84"(2134)
CAPACITY
-
35, 100, 200
kg
up to 2600 TPH(2359 metric)
-
350, 1000
kg
435 - 11,000 TPH(395 - 9979 metric)
ACCURACY
Based on a
totalised weight over a 35 - 100% design capacity and material test calibration,
installed as per guidelines and instructions
| ± 0.5% |
- |
single weigh module with a commercial idler set |
| ± 0.25% |
- |
single weigh module with a Merrick precision, adjustable
idler set |
| ± 0.125% |
- |
two weigh modules with Merrick precision, adjustable
idler sets |
| ± 0.125% |
- |
three weigh modules with Merrick precision, adjustable
idler sets (for certifiable or NTEP installations) |
| up to 0.1% |
- |
four weigh modules with Merrick precision, adjustable
idler sets (for certifiable or NTEP installations) |
CALIBRATION
Electronic,
material test, test chains (optional), or test weight (optional).
OVERLOAD PROTECTION
Infinite
(mechanical stop). Models with 35, 100 and 200 kg load cells have shock overload
protection.
LOAD CELL
Factory
calibrated, precision shear beam strain gauge type, temperature compensated +14
to 122° F (-10 to +50° C), and environmentally sealed.
LOAD CELL CONNECTION BOX
Connects up to (4)
weigh modules. Includes speed sensor pulse cut-off switch for measuring belt
length. 304 stainless steel enclosure, NEMA 4
SPEED SENSOR
Digital,
photo-electric pulse generator for direct coupling to tail pulley or optional
type CF wheel assembly carriage mounted between belt strands. 304 stainless
steel enclosure, NEMA 4
WEIGH MODULE CONSTRUCTION
Carbon steel with
rust resistant primer, painted orange enamel. All adjustment screws and bushings
anodized for corrosion resistance.
WEIGH MODULE MOUNTING BEAMS
Structured
channel, carbon steel construction, pre-drilled for mounting weigh module to
conveyor stringers. Two supplied per weigh module with all mounting hardware.
Painted with rust resistant primer and orange enamel.
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