NATIONAL
STANDARDS
WEIGHTS 6, MEASURES (PATTERNS
COMMISSION
DF INSTRUMENTS)
REGULATIONS
REGULATION9
CERTIFICATEOF APPROVAL No 6/14B/12
This
is to certify
pattern
and,variant
Mercury
that
an
of the
Model HSD Automatic
approval
Hopper
has
been
Weighing
granted
for
use
South
are
suitable
for
The
approval is subject
Comnission
that
the
Pty
Ltd
SO31
trade.
to
Instruments purporting
6/l 48/l
Australia,
the
Instrument
submitted by Mercury Weighing And Control Systems
32 Dew Street
Thebarton,
by
review
an or
after
l/9/88.
to camply with this approval shall be
marked
RSC
No
2.
Relevant drawings
specificationsare lodged with
and
the
CUIWSS~O~.
Condition of Approval (Variant1)
Only one method of mass indication (either the primary digital indicator or the
the
other
indicator
shall be
dial indicator)
may be in use at
any one time;
rendered
inoperative.
Signed
v
DescriptiveAdvice
Pattern:
approved
l/8/83
model HSD automatic hopper
capacity and with up to 1SOO scale
Mercury
.
Variant:
approved
weighing instrument
15 DOD kg
maximum
l/8/83
With a dial indicatoradded and displaying750 scale intervals.
1.
TechnicalSchedule No 61148112
&ted
23/8/83 describes the
Filing Advice
The
of
intervals.
docunentatianfar
this
approval
comprises:
Certificateof Approval
No 61148112
dated 23/8/83
TechnicalSchedule No 6/148/12,dated2318183
Test Procedure
Figures
1 and
P/8/83
No 6/148/12
dated
2 dated P/8/83.
2318183
pattern
and
variant.
NATIONAL
-
STANDARDS
COMMISSION
TECHNICALSCHEDULE No 6/148/l
Model
HSD
Automatic Hopper
Pattern:
Mercury
Submittor:
Mercury
Weighing And Control Systems
32 Dew Street
Thebarton,
South Australia, 5031.
2
Weighing Instrument
Pty
Ltd
Descriptionof Pattern
1.
A self-indicatingautomatic hopper weighing system of 15 000 kg maximum capacity
and up to 1500 verificationscale intervals,using an HBM model Z3H3 500 kg lead
cell (NSC approval No Sl53) and a Mercury model 900 digital indicator (NSC approval
No S132).
Figure 1 is a schematic diagram of
mechanism approved in Variant
1.
A low pressure
cut-out
the air-supply pressure
the
system,
including the dial indicating
switch causes the computer to revert to manual operation if
drops
below
375
kPa.
Markings
1.1
Instrumentsare
marked
Manufacturerls
with
following data:
the
name or
mark
Model number
Serial number
NSC approval numbers
NSC No 6/148/l
2
IndicatorNSC No
L d Cell NSC No
class
capacity
Minimum capacity
Verificationscale interval
S132
Sl53
I
0 ox 15 000 kg*
Accuracy
Maximum
Min
end
500 kg*
= 10 kg*
VerificationProvision
1.2
Provision is made for
a verificationmark to be applied.
Descriptionof Variant 1
2.
With a Mercury
model 522 AL dial indicator (Figure 2) added to the
subject to the Condition of Approval stated
in the Certificate.
instrument
dial indicating mechanism is isolated from the lever mechanism by a pneumatic
ram which locks the intermediateheackrork lever in a fixed position whenever the
primary (digital) indicator is in use. The ram is autcmatically operated by a
solenoid valve which responds to a signal from the computer (refer
Figure 1)
whenever an wauto-batching"sequence is canmenced.
The
2.1
The
Markings
instrument
is marked
as
per
the
pattern,
and in addition:
Minimum capacity (dial)
Verificationscale intervals (dial)
*These
there.
NW33
markings
are
repeated
in the
vicinity of each
Min 1000 kg
e=d
*
= 20 kg+
reading face
if not already
TEST PROCEDURE No 6/148/l
2
All lead applications to the instrument should be in accordance with the Cam&
ssion's recomnended
testing procedure
for the eliminationof rounding error as set
out in Document 104.
The
maximum permissibleerrors are:
loads between 0 and 5OOe;
loads between ,501e and 15OOe.
20.5e
for
t 1 ,Oe for
1.
Zero
Range
that
the
range
of the zero adjustment
is not more than 4% of the maximum
capacity (+-2% approximately). With zero balance indicated,apply a load of, say,
2.5% of maximum capacity to the instrument,and adjust
the
zero
control; the
instrument
should not rezero.
Check
2.
(0)
Zero Test
Check
by
(Digitalindicatoronly)
means
of
Docunent
104,
that
when the zero light is lit, zero is
set within 0.25e.
the
automatic zero tracking device resets zero when the
weighing
mechanism is in equilibriumwithin 0.5 scale interval of zero, zero should
be checked,
with
a load
equal
to, say, 10 scale intervals on the load
receptor. The indicationswith 0.25e and 0.75e additionalmass on the load
receptor
will then be 1Oe and lie respectively.
(b)
As
3.
Range
3.1
Digital Indicator
(al
maximum mass indicatedshould not exceed the maximum capacity (Max) by
above this indicated mass the indicator
than
10 scale intervals;
should be blank.
lb1
of Indication
The
more
Below zero the indicationmay blank or the mass will be indicated, prefixed
a minus sign.
by
3.2
There
4.
Dial Indicator
shall be no stole marks below
Test
zero
and above
maximum capacity.
Loads
loads are to be applied to the complete weighing
instrumentincreasing in not
5 approximatelyequal steps to maximum capacity, followed by decreasing
loads in not less than 5 approximatelyequal steps to zero load.
Test
less
5.
than
Multiple Indicators
one indicator is used, the variation between indications or
same load shall
not be greater
than the absolute value of the
maximum permissibleerror for that load on the device with the largest verification
scale interval.
Where
more
than
printings
for
the
Note:
Condition of Approval stated
in
the
Certificate.
25/3/88
NATIONAL
-
STANDARDS
NOTIFICATION
VARIOUS
The following changes
listed overleaf
submitted
-
by
CERTIFICATES
OF APPROVAL
are made to the approval
and Technical
The submittor
should be changed
A & D Mercury
Pty Ltd
(the address
2)
OF CHANGE
Mercury Weighing and Control
32 Dew Street
SA 5031.
Thebarton
In the Certificates
should be made:
1)
COMMISSION
remains
documentation
Systems
Schedules
for the approvals
Pty Ltd
listed, the
following
changes
to read;
unchanged)
approved
Mercury
instrument
or component of an instrument
Any
documentation, may now also be known as "AND Mercuryl or similar.
in the
Signed
Executive
Director
..../2
25/3/88
Paqe 2
Chanqe Notice
APPROVAL
PATTERN
TYPE: weighing instruments
Model 92
b/3/007
b/3/008
Model 131
counter
scales
TYPE: counter machines semi-self-indicating
6/4A/012
Model 304A
TYPE: counter machines freely-suspended
b/5/011
Model 211 DA
TYPE: weighing
6/9~/001
6/9A/004
6/9A/007
6/9A/008
< 30 kg (spring scales)
instruments non-self-indicating
Models 692 and 682
Model 522D
Model 211
Model 600
TYPE: weighing instruments self-indicating
6/9c/OO5
node1 211D
6/9c/O13
up to 2500 lb or 1200 kg
6/9C/O66
node1 522 AL
node1 SM100/479/522D
b/96/061
6/9C/O81
Model SE-LP 1200
6/9c/O88
Model 522D LT-1OK
TYPE: Weighbridges self-indicating
6/10B/040
Model WB-LT
6/100/045A
Model RVB-HZ0
TYPE: automatic weighing instruments (except belt conveyors)
6/14B/012
Model HSD automatic hopper
TYPE: overhead
b/18/005
b/18/017
TYPE :
s114
siza
S132
S161
s199
TYPE:
s117
S163
s221
digital
weighing instrument
With 211DA headwork
Model OHT 500
(suspended
load or receptor)
indicators
Model 579
Model 1300
Model 900
Model AD4316
Model AD-4321
load cells
Interface model SM25-12 kg
Transducers model B5112.1K
HBM model TRT-50 (Mercury model TRT3K-50)