INTUITIVE-L Mk.2 - London Electronics Ltd

INTUITIVE-L Mk.2 - London Electronics Ltd
London Electronics Limited
Thorncote Road, Near Sandy, Bedfordshire SG19 1PU
Tel +44(0)1767 626444
Fax +44(0)1767 626446
www.london-electronics.com [email protected]
Panel mounting load / weight indicator / controller
INTUITIVE-L Mk.2
Fo
r
Connection details, scaling and general information
Ap
pl
ie
d
Caution: There is a risk of electrical
shock if this instrument is not properly installed
!
Caution: Risk of danger: Read the whole
manual before you install this meter
The New version of the INTUITIVE Family, with these extra benefits...
* 20 bit A/D convertor, higher precision, improved stability.
* 16 bit D/A convertor, greater resolution.
* Direct and theoretical linearisation features
* More comms options, for faster, more flexible data access.
* Extra ‘Factor and Offset’ feature, allows you to correct for Gravity, Container Tare etc.
* Timers on alarm relays.
* More alarm setting modes, including in-band and out of band alarms.
* Summary Screen, lets you know which options are fitted, whenever you want to know.
* Wider operating temperature range
* Variable brightness feature
* Adjustable menu timeout delay, to suit new and experienced users.
* Outputs selectable from nett or gross.
* Real -Time clock option
Ordering code:
INT2 = Intuitive Mark
L = Loadcell model
Analogue output:
Alarm outputs:
Serial data:
Display colour:
Power:
INT2-L-X-X-X-X-X
2 family
0=none,
0=none,
0= none,
R=Red,
AC=100-240V AC,
ANI=4-20mA,
AL2= 2 relays,
232=RS232,
G=Green
DC=11-30V DC
ANV=0-10V
AL4=4 relays
485=RS485
Software version F00.16
1
Document Ref:pm65\manuals\INTUITIVE_L_MkII
Revision:17 Dated: 26 April 2010
.
2
Contents
Alarm board configuration
Alarm programming
Analogue output
Application notes
Bootup routine
Brightness Adjustment
Button Functions
Calibration - introduction
Calibration method - direct, no linearisation
Calibration method - direct, with linearisation
Calibration method - theoretical, no linearisation
Calibration method - theoretical, with linearisation
Connections
Declaration of conformity
Decimal point setting
Excitation voltage - how to reduce
Factory Default settings
Filtering
General Description
Gross/Net function
Hold function
Introduction
Keyboard timeout Delay
Language
Logic inputs and MEM-08 option
Modbus ASCII
Mounting and Installation
Option boards- installing
Real Time Clock setting
Record of revisions
Reverse / Mirror / Heads-Up display
Scale and Offset settings after calibration
Serial output option
Specifications
Tare
Timed alarms
28
29-35
26-27
46,47
10
11
12-14
16
17
22
18-20
21
9
48
12
47
11
15
6
27,28.40,41
39,40
5
10
10
40,41
38
7
25
39
44
42
24
36-38
43
10,39,40
29
Warnings
WEEE
Wiring Advice
Zener barriers
Zero drift compensation
4
45
8
46
23
3
Warnings
Please carefully read this manual and all warnings. Install the meter
ONLY when you are sure that you’ve covered all aspects.
!
!
Where the product is intended for “UL” installations, removal or
addition of option boards is not permitted.
Check that the model number and supply voltage suit your application
before you install the meter.
Connect the meter according to current IEE regulations, IEC61010 &
NFPA:70 National Electric Code in USA.
This meter is for Installation class II service only. This means it
has exposed electrical and power terminals. You must install it in
a suitable fire enclosure which will also protect users from electric shock
!
We designed this meter for Pollution-Degree 2 environments only.
!
Power supplies to this equipment must have anti-surge (T) fuses rated
at 400mA for 230V supply, 400mA for 110V supply or 2A for DC
supplies in the range 11-30VDC. Only Siba fuses in series 189500,
cULus listed according to file #E167295 are accepted for this service
under the terms of UL listing .A switch or circuit breaker, clearly marked
as a disconnecting device, must be included close to the installation.
Don’t touch any circuitry after you have connected the meter, because
there may be lethal voltages on the circuit board.
Only adjust on-board switches or connections with the power turned off
!
Make sure all screw terminals are tight before you switch the meter on.
!
Only clean the meter’s front with a soft damp cloth. Only lightly dampen
with water. Do not use any other solvents. The behind-panel case may
be cleaned with a dry cloth only, use no liquid or solvent on it.
Safety First ..............Don't assume anything............. Always double check.
If in doubt, ask someone who is QUALIFIED to assist you in the subject.
4
Introduction
Please contact us if you need help, if you have a complaint, or if you have
suggestions to help us improve our products or services.
If you contact us about a product you already have, please tell us the full
model number and serial number, so that we can give you accurate and fast
help.
This product has a 2 year warranty. We will put right or replace any meter
which is faulty because of bad workmanship or materials. This warranty does
not cover damage caused by misuse or accident.
IMPORTANT
If this equipment is important to your process, you may want to buy a spare to
cover possible failure or accidental damage in the future.
This is because during factory shutdown periods, you may have to to wait
several weeks for an equivalent replacement, or we may have no stock at the
time you urgently need it.
You may also need to pay extra carriage charges if you want a fast, guaranteed
courier service. Warranty repairs or replacements are usually returned with a
standard courier service.
We do not offer compensation for losses caused by failure of this instrument.
If you do not agree with these conditions, please return this item in unused,
condition, in its original packaging and we will refund the purchase price,
excluding any carriage paid.
We thought you’d prefer to know about possible delays and extra charges
now, rather than during a panic. A spare unit could help to avoid these issues.
We always try to improve our products and services, so these may change
over time. You should keep this manual safely, because future manuals, for
new designs, may not describe this product accurately.
We believe these instructions are accurate, and that we have competently
designed and manufactured the product, but please let us know if you find any
errors.
5
General Description
This series of meters accepts industrial sensors to allow various physical
measurements to be made, such a weight, temperature, pressure, humidity
etc. Different models are available for different sensor types.
The main function of this series is to give a numeric readout of the variable
being monitored. Most models include an excitation power output, to power
the sensor directly.
Various optional output modules are also available to give alarm relay outputs,
analogue output or digital communications, or any combination of these options.
Meters are programmed using front panel pushbuttons. The buttons may be
locked with a rear switch.
Meters have two power supply options : 100-240 VAC or 11-30VDC
These meters are designed to mount into a protective enclosure which will
protect users from contact with power and signal wiring.
These units must be installed fully assembled, and must be installed according
to local electrical installation rules. When properly installed, they provide ingress
protection to IP65 / NMA4X from the front
Safety
Caution: There is a risk of electrical
shock if this instrument is not properly installed
!
Caution: Risk of danger: Read the whole
manual before you install this meter
Obey all safety warnings in this manual, and install the meter according to local
wiring and installation regulations. Failure to follow these guidelines may cause
damage to the meter, connected equipment, or may be harmful to personnel.
Any moving mechanical device controlled by this equipment must have suitable
access guards to prevent injury to personnel if the meter should fail.
6
Mounting and Installation - Class II
Install the meters in a suitable protective electrical control enclosure according
to local wiring regulations. See specifications for maximum allowable
temperature in enclosure. Allow adequate air circulation.
Installing into front of panel
92mm +1mm -0mm
Remove the two rear bracket
screws and safely store them
and the U-Bracket for later fitting.
Panel cutout
Slide the meter, with gasket
into the panel cutout
45mm +1mm -0mm
888888
Bracket screws
U-Bracket
Gasket
Securing into the panel
Re-fit the U-Bracket and tighten the bracket
screws to firmly clamp the meter in place.
Check that the gasket is evenly pinched
between the meter’s front bezel and the
enclosure front
Ventilation
There should be sufficient ventilation in the
enclosure to ensure that the meter’s case is
always kept to less than 60C.
Meter Spacing.
Meters should be spaced apart sufficiently
to allow a free flow of ventilation air around
the meters, such that no part of the case will
exceed 60C
U-Bracket
Bracket screws
Side view of meter installed in panel
Bracket screw (1 of 2)
Front surface
of enclosure
Left side of meter case
U-Bracket
Front surface
of meter
Gasket
Front surface
of enclosure
7
Wiring Advice
This meter uses detachable screw terminal connectors. Refer to the wiring
diagram on the following page for the correct positioning of each wire.
The conductors you use must be suitable for the meter’s temperature, current
and voltage rating, which is broadly described as follows:Cable Temperature Rating
All cables must be rated for operation up to 90C continuous.
Cable gauge and screw tightness
The connectors on this instrument can accept conductors up to 16 gauge
AWG / 1.5mm2 c.s.a. The minimum cross sectional area shall be 22 gauge
AWG / 0.5mm2 . Tighten screw terminals to 7.0 lb/in torque / 0.8 Nm torque.
Cable insulation voltage rating
Cables shall have an insulation voltage rating of at least 380V continuous.
Wire preparation:
Inside
enclosure
Strip back
5mm max.
Detachable
connectors
Outside
enclosure
Side view of meter
U-Bracket
Terminal screwdiver - 3mm blade
No bare wires exposed
125mm behind panel
We recommend multi-strand wire, because it withstands vibration better than
single strand cable. Pull the wire firmly after you make the connection to confirm
it is tight.
Use screened cable for all signal and control wiring and connect the screen to
earth at the destination end only. Route signal cabling away from power cabling
and relay switching cabling, to avoid electrical noise interference.
8
Connections
Enable
Comm
RxD
TxD
R S 2 3 2
Enable is used in mode C1
to activate or de-activate the
RS232 or RS485 serial output.
Connect to Comm to continually
transmit data.
!
Connectors and options
Connectors may be present
even if output options are not
installed. Refer to rating label
to see installed options.
15
Enable
14
Comm
+
A
-
B
R S 4 8 5
16
17
18
19
Rated 2A 250VAC Resistive
AL1 AL2
AL3 AL4
20
Analog Serial Data
o/p option o/p option
21
22
23
24
25
26
27
0, 2 or 4 Alarm Relay
o/p options
Class II Installation
Warning:
Disconnect all power before
exposing the rear of the meter
Sig-
Sig+
Sense+
Excitation +
8
9
10 11
12
13
N
L
4 wire connection
for short cable runs
Customer-supplied disconnection
and overload protection devices
- +
Circuit breaker
Switch
Fuse
Power
Sense-
7
Not used
6
CC.3
5
Power
CC.2
4
CC.1
3
Common
2
Logic Inputs
Alarm Lock
Calib’n Lock
1
Excitation -
Signal I/P & Excitation
Remote
contacts
(5V DC 1mA)
!
Millivolt input only?
Link Exc+ to Sense+ and link Exc- to SenseSet Sig- to 5V using 2 x 1K resistors +/- 25%
Cable and/or zener
barrier resistance
Cable and/or zener
barrier resistance must
not cause the excitation
voltage to drop below
4V.
6 wire connection
for long cable runs
and zener barrier
installations.
1
2
1K
3
4
- mV +
5
6
1K
!
Using Zener Barriers?
See application notes near end of manual for
details on how to use Zener Barriers with
these meters.
Important - Sense + and Sense - must always be referred to the excitation voltage. Never leave these terminals open.
9
Startup meter Settings
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
Menu Language Choice
Press the two right hand buttons briefly. You will see the User Interface language, which you
can change with the UP or DOWN buttons. Accept with OK
UI EnG
UI FRA
Default
Next you will see ...
Meter Bootup routine
boot0
boot1
boot2
Default
1. Activates all digit segments
2. Runs up and down brightness
settings
3. Displays model number and
installed options
4. Displays firmware version
5.Displays calibration audit
number.
6. Goes to meter mode
1. Activates all digit segments
2. Runs up and down brightness
settings
3. Displays model number and
installed options
4. Goes to meter mode
1. Goes immediately to meter
mode
When you switch the meter on, it can run through a summary list of software version number,
installed options, calibration number etc.
You can choose from the 3 lists of bootup information to be displayed, the less information
you display, the sooner the meter will be available to operate.
Next you will see ...
Tare Memory
tare s
tare n
Default
You can configure the meter to store any tared values on power down (Tare S), typical in
weighing applications, or you can clear the tare memory on power down (Tare N).
Next you will see ...
10
Drift cancellation
drift 0
drift 0
Default
If your meter will normally be showing 0, for example a platform scale, you can set the meter
to continually cancel any long term drift. To do this, set Drift 1.
This only operates at and around zero reading.
The meter will compares readings to previous ones every 30 seconds, and if the value has
changed by a small amount, the meter will aoutomatically re-zero. The maximum movement in
a 30 second period is 8 counts of the least-significant digit. Any more than that, we assume
the change has been a valid process movement, so leave the change unaltered.
Brightness Adjustment
Lockout notes: Cal Lock switch = ON when changing.
In normal operation, you can select from one of 8 brightness levels, to suit your local lighting
conditions, or to match the brightness of several meters which may be from different batches
or ages.
bright
Default=max
Press for 3 seconds, then press the down or up button to decrease or increase the
brightness.
Press OK when set.
Your chosen brightness level will be saved in memory, so that the meter will return to the
chosen brightness after power-off.
Factory Default Settings
Lockout notes: Cal Lock switch = OFF when changing.
You can reset your meter to return it to its original factory default settings. (Shown as Default )
defs n
Default
defs Y
Switch the lockout switch off and press all 4 buttons for around 3
seconds.
Then press the up or down button to change to “dEFS Y”
Press OK to accept.
Warning: You will clear ALL settings when you choose dEFS Y
11
Button Functions- ‘Quick-Step’ - Page 1
Functions
Buttons Conditions
Alarm Settings
AL CFG
Press button briefly to view
>3 seconds to change setpoint
>5 seconds to change function
Analogue Output Settings
Press > 3 seconds to enter
Brightness
Press button for 3 seconds
Change with UP/DOWN button. OK=Accept
Calibration Scale Factor
Press both buttons >3 secs, press OK 2x
Change with UP/DOWN button. OK=Accept
Calibration Offset
Press both buttons >3 secs, press OK 3x
Change with UP/DOWN button. OK=Accept
Calibration Span Setting
Can be viewed at any time.
Alarm lockout OFF to
change
888888
Calibration lockout OFF
bright
Calibration lockout ON
SCALE
Calibration lockout OFF
offset
Calibration lockout OFF
888888
Calibration lockout OFF
C a ls rc
Calibration lockout OFF
888888
Calibration lockout OFF
888888
Calibration lockout OFF
Press > 3 seconds to enter
Calibration Type
Press both buttons >3 secs
Change with UP/DOWN button. OK=Accept
Calibration Zero Setting
Press > 3 seconds to enter
Decimal Point position
Press button 3 seconds, set during Cal Span
Change with UP/DOWN button. OK=Accept
12
Button Functions- ‘Quick-Step’ - Page 2
Functions
Buttons Conditions
Drift Compensation
drift 0
Calibration lockout OFF
Fil J10
Calibration lockout OFF
Fil 05
Calibration lockout OFF
int
Can be viewed at any time
Press both buttons briefly, press OK 2x
Change with UP/DOWN button. OK=Accept
Filter Jump percentage
Press both buttons >3 secs, press OK 1x
Change with UP/DOWN button. OK=Accept
Filter time constant
Press both buttons >3 secs
Change with UP/DOWN button. OK=Accept
Hardware & Software summary
Press both buttons >3 secs
Language& Boot-up mode
Press both buttons briefly
Change with UP/DOWN button. OK=Accept
Last digit round-up
Press both buttons >3 secs, press OK once
Change with UP/DOWN button. OK=Accept
Linearisation
Press both buttons briefly, press
Change with UP/DOWN button. OK=Accept
Menu timeout delay
Press both buttons briefly, press OK 3x
Change with UP/DOWN button. OK=Accept
Reset Peak & Valley memories
Press min/max briefly then reset for 3 sec.
L
ui eng
Calibration lockout OFF
lSt
1
Calibration lockout OFF
linon
Calibration lockout OFF
dlay10
Calibration lockout OFF
888888
Calibration lockout ON
Link terminals 7, 9 and 10
13
Button Functions- ‘Quick-Step’ - Page 3
Functions
Buttons Conditions
Reset Tare
888888
Press buttons briefly
Reverse / Mirror display
Press both buttons briefly, press OK 5x
Change with UP/DOWN button. OK=Accept
Serial Comms setup
Press both buttons briefly
Tare display to 0
Press button briefly. Display shows 0 and the
button LED will illuminate to show you are tared.
Tare Storage
Press both buttons briefly, press OK once
Change with UP/DOWN button. OK=Accept
Valley & Peak (Max. & Min.)
Press button briefly, once for peak, next for
valley.
14
Calibration lockout ON
Link terminals 7, 10 and 8
rEv d1
Calibration lockout OFF
888888
Calibration lockout OFF
888888
tare S
888888
Calibration lockout ON and
Link terminals 7 and 8
Calibration lockout OFF
Calibration lockout ON
Link terminals 7 and 9
Filter settings
You can use the filter to improve display stability. This is useful if your signal is unstable. Bigger
time constants give more stability but slower response.
Filter time constant
Press both buttons >3 secs
Change with UP/DOWN button. OK=Accept
Fil. 0.0
Calibration lockout OFF
Default
The Time constant of this digital filter is very similar to the time constant of an RC filter where
T=RC . The time constant is the time it takes for the display to reach 63 % of its final reading
value, after a step change on the input.
You will see that if you select a 1 second filter time, it will take several seconds for the meter to
reach its final value.
To give improved response to large step changes, we can momentarily cancel the filter action
with the ‘Filter Jump’ feature
Filter Jump percentage
Press both buttons >3 secs, press OK 1x
Change with UP/DOWN button. OK=Accept
Fil.J.10
Calibration lockout OFF
Default
How does the Filter Jump feature work?
First, make a note of the range you calibrated your meter over (not the full dynamic range of the
meter, just the the difference between the maximum and minimum display values you set, in
either direct or theoretical calibration) Let’s assume you calibrated the meter for a 250 range.
If you set the filter jump percentage to 25%, any sudden change in input of less than 25% of 250
will be included in the averaging calculation.
However, a jump of greater than 25% will cause the filter to be ignored and the meter will
immediately jump to that new value.
If you set a jump of 0%, filtering will always be overridden (never any filtering)
If you set a jump of 99%, filtering will always be present, so long as the input signal doesn’t jump
more than 99% of the calibrated range.
15
Calibration Methods - introduction
There are two ways you can calibrate your display, and each way can be done with 2 points
only, or up to 10 linearisation points.
A.
Direct connection of real-time low and high input signal levels, which you
scale the display against. (Zero and Span)
B.
Theoretical scaling, where you use the keyboard to enter expected zero and
full scale sensor signals, and the measurement amounts these relate to .
Calibration lockout switch must be OFF to view
and/or change calibration.
Press Set1 and Set2 buttons at the same time...
Shortly after CAL.SrC appears, the
display will change to show either dIrECt
or tHEor as below.
888888
After a couple of seconds,
display shows...
Examples of Direct Calibration...
Examples of Theoretical Calibration...
1. If you want to calibrate a weighing system by
loading it with known calibration weights.
1. If you do not yet have your sensor, but know what
its published calibration settings are.
For example, you plan to use a pressure sensor,
which will give 4-20mA for 0-250 Bar. You can
enter the input range of 4-20mA and the
measurement range of 0-250.
2. If you want to calibrate a straight-sided tank
gauging system by filling the tank with a known
amount of liquid.
3. If you are performing a calibration check against
a calibration reference, such as humidity cells, pH
buffers etc.
2. If you are a distributor, supplying a transmitter to
an end user who will be buying his sensor from
another source. He has told you on his order what
he would like the scaling to be.
Press UP or DOW N arrow to change
Press UP or DOW N arrow to change
direct
Press
button
to toggle
theor
Default
Press OK to choose.
Press OK to choose.
When you have chosen the Calibration type, it will be saved in your display’s memory, so you
will not need to repeat the procedure.
You may now calibrate your display using your preferred method, on the following pages...
16
Direct Calibration, no linearisation
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
Set your calibration method to DIRECT - see previous page.
Assume we want to calibrate a weighing platform, rated at 250kg. We have a 200kg calibration
weight. (Use at least 60% rated load for calibration. 100% ideally)
First, calibrate the full scale (SPAN) reading. We do SPAN first, because in the SPAN procedure we
can set the decimal point position of our measurement, to set resolution.
SPAN Calibration . Apply your calibration load and press the Set2 button for 3 seconds.
Display will show ‘direct’ , ‘set HI’ . Press OK. You will see that one digit is brighter than the others.
Enter your calibration weight value.
Example only
200.0
Press OK
when done.
You can edit the value of a brightened digit with the UP/DOWN buttons.
You can brighten other digits with the DIGIT button.
Go through each digit in turn, to set the desired value of your calibration load.
Press OK when done.
To set the decimal point position, press the Set2 button for 3 seconds whilst in the numeric
setting stage . You’ll see all decimal points light, with one brighter than the rest. Use UP or DOWN
buttons to move the brightest decimal point and press OK when in the desired position.
ZERO Calibration. Remove your load and press the Set1 button for 3 seconds.
Display will show ‘direct’ , ‘set LO’ . Press OK. You will see that one digit is brighter than the others.
Example only
0000.0
You can edit the value of a brightened digit with the UP/DOWN buttons.
You can brighten other digits with the DIGIT button.
Go through each digit in turn, to set all digits to 0. Press OK when done.
17
Theoretical Cal., no linearisation - page 1
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
Set your calibration method to THEORETICAL - see previous pages
As an example, let us assume we want to calibrate the display for a loadcell input.
Let us also assume that we know from the calibration sheet which came with the loadcell, that it
has a sensitivity of 0 to 2.2451mV/V and a rated capacity of 0 to 5000kg
The Display generates 10 V of excitation for the loadcell. So we can simply mutiply the mV/V
figure by 10 to get our full scale mV value.
Most loadcells are balanced to give 0mV at 0 load.
This means that for a load range of 0 to 5000 kg we expect a signal range of 0 to 22.451mV
We need to enter these figures into the transmitter...
Start with the full scale SPAN setting...
Press the Set2 button for around 3 seconds.
theor
The display will briefly show theor, to confirm that we
are in the theoretical setup mode.
Choose with the up or down arrows and press OK.
In HI will appear briefly, followed by a numeric
value, which you can set...
The numeric value will need to be the High
input signal level ...
in hi
Set to highest input signal level which was
22.451mV, according to the sensor
calibration sheet in our example.
You can change the value of the brightest
digit with the UP or DOWN buttons.
Brighten other digits with the DIGIT button.
22.451
Press OK when done...
18
Theoretical cal., no linearisation - page 2
....Continued from previous page
rd HI will appear briefly, followed by a
numeric value, which you can set...
The numeric value will need to be the High
display reading value ...
rd hi
To change decimal point poition, press the Set2
button for around 3 seconds while you’re in the rdHI
setup...
05000
Set to highest reading value, which was
5000 according to the sensor calibration
sheet in our example.
You can change the value of the brightest
digit with the UP or DOWN buttons.
Brighten other digits with the DIGIT button.
Press OK when done...
5000
You can change the position of the decimal point,
relating to rd HI (and rd LO)
This may be useful if you want to increase the
resolution of the display.
The resolution affects several of the display’s
important functions, such as ....
...the resolution of the analogue output signal
...the resolution of your alarm relay action.
...the resolution of the serial data output value.
As an example, assume you have a sensor with 10
tonne capacity.
If you scale the display for 0 to 10, the resolution will
only be 1 part in 10
Use the UP arrow button to move the decimal point to
your desired position.
Press OK when done.
5000
Your analogue output will change in 10% steps.
Your precision of alarm setting would be to within 1
tonne.
The resolution of serial data would be within 1 tonne.
However, if you include a decimal point you could
control the resolution, as in these examples :0-10.0 which gives 1% resolution
0-10.00 which gives 0.1% resolution
0-10.000 which gives 0.01% resolution
You cannot get more resolution than 1 part in 60000.
This is the limit of resolution in the A/D converter.
Note: If you change the decimal point position, you
must reset the rdLO and rdHI values also.
Next .... how to set the theoretical ZERO calibration...
19
Theoretical cal., no linearisation - page 3
Continued from previous pages. ZERO setting ...
Press the Set1 button for around 3 seconds.
theor will appear briefly, to confirm that you
are in the theoretical calibration mode.
The numeric value will need to be the low
input signal value ...
Next, In Lo will appear briefly. Set to the
low input value, which was 0mV according
to the sensor calibration sheet in our
example.
You can change the value of the brightest
digit with the UP or DOWN buttons.
Brighten other digits with the DIGIT button.
Press OK when done...
theor
rd LO will now appear briefly, followed by a
numeric value, which you can set...
The numeric value will need to be the low
reading value ...
000000
Set to the low reading value, which was
0kg according to the sensor calibration
sheet in our example.
You can change the value of the brightest
digit with the UP or DOWN buttons.
Brighten other digits with the DIGIT button.
Press OK when done...
rd lo
000000
This completes the Theoretical calibration routine. Please remember to switch the Calibration
Lockout switch ON
20
Linearisation - theoretical scaling
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
Choose THEORETICAL Calibration method - See the Calibration methods page.
LinOFF
LinOFF
Lin ON
Default
Press both left buttons briefly
You can now choose to have the
lineariser on or off
In 10
In 08
In 09
In 07
In 06
In 05
In 04
06
05
03
01
00
In 03
rd
rd
rd 04 rd
rd 02
rd
rd
In 02
Confirms DC voltage
range.
If DC current, this display
will show DC A
rd 07
In 01
Confirms you are in
Theoretical Cal mode
rd 10
rd 09
rd 08
In 00
dc v
Displayed value
theor
Press OK to select
Input signal
in 00
rd 00
Set Value for input
signal at point 0.
Press OK when
done
Set Value for
display at point 0.
Press OK when
done
IMPORTANT : In0 < In1 ..... In9 < In10
Press OK if you want
to add another point
Press OK if you want
to quit / abort.
Press OK if you want
to finish and save.
add pt
quit
save
Press OK to select
You can set as many or few points
as you wish. 11 points are available,
You must ensure that the 1st point sets the
lowest weight you want to measure and the
final point sets the maximum weight you wish
to measure.
in 10
rd 10
Set Value for input
signal at point 10.
Press OK when
done
Set Value for
display at point 10.
Press OK when
done
Press OK if you want
to quit / abort.
Press OK if you want
to finish and save.
quit
save
Press OK to select
21
Linearisation - Direct scaling
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
Choose a DIRECT Calibration method - See the Calibration methods page.
LinOFF
LinOFF
Default
Default
Press both left buttons briefly
You can now choose to have the
lineariser on or off
direct
dc v
SET 00
rd 00
LinON
Press OK to select
Confirms you are in
Direct Cal mode
Apply several
known loads
and tell the
meter what it
should read
Confirms DC voltage
range.
If DC current, this display
will show DC A
Apply input for
known value 00.
Press OK when
done
Set Value for
display at point 0.
Press OK when
done
Press OK if you want
to add another point
Press OK if you want
to quit / abort.
quit
add pt
Press OK if you want
to finish and save.
save
Press OK to select
You can set as many or few points
as you wish. 11 points available.
You must ensure that the 1st point sets the
lowest weight you want to measure and the
final point sets the maximum weight you wish
to measure.
SET 10
rd 10
Apply input for
known value 10.
Press OK when
done
Set Value for
display at point 10.
Press OK when
done
IMPORTANT : Set0 < Set1 ..... Set9 < Set10
Press OK if you want
to quit / abort.
quit
Press OK if you want
to finish and save.
save
Press OK to select
22
Zero Drift Compensation
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
If your application means the display is normally showing 0, for example a weighing platform
which only occasionally carries a load, you can set the meter to constantly check the zero
calibration.
It does this by comparing readings every 30 seconds, and if the reading should wander off 0
by a small amount, the meter will re-zero the display.
It will not re-zero if the reading goes above 8 counts, or below -8 counts, as we consider that
this may be a true measurement value.
AL1
AL2
AL3
AL4
0%
100%
OUTPUT
ALARMS
OK
DIGIT
Press together briefly (will show “UI ENG”)
Now press 2 times until you see
something like ...
AL1
AL2
AL3
AL4
DIGIT
0%
100%
OUTPUT
ALARMS
OK
Use the UP/DOWN buttons to choose drift.0 to disable the drift correction or
drift.1 to enable it. Press OK when done.
23
Post Calibration Scale and Offset
After you have calibrated your meter to your sensor, you may later want to trim the reading or
convert it to different units of measure, for example from kg to pounds or Nm, from Degrees C to
Degrees F etc., without going throught the whole calibration procedure again.
You can do this with the SCALE and OFFSEt functions, which are normally set to 1.0000 and
0.0000 respectively.
New display = (Existing display x Scale) + Offset
scale
Default = 001.000
offset
Calibration lockout OFF
Press both middle buttons >3 seconds.
Repeatedly press OK until Scale or Offset appears.
Default = 0000.00
Examples.
1. Correcting fror gravitational variance
Your weighing system was calibrated where gravitational acceleration = 9.812m/s2 (London)
You then move the system to Bankog where gravitational acceleration is reduced to 9.782m/s2
You can correct for this difference by setting Scale = 9.812 / 9.782 = 1.0031, so that a given
mass in Bangkok will show the same weight as it did in London.
Set Offset = 0.0000
See http://en.wikipedia.org/wiki/Earth%27s_gravity
2. Converting from DegC to Deg F
Your system was calibrated to show Deg C but you want to change it to Deg F without altering
the calibration.
Set Scale = 1.8000 and Offset = +32.0000
3. Converting from DegF to Deg C
Your system was calibrated to show Deg F but you want to change it to Deg C without altering
the calibration.
Set Scale = 0.5556 and Offset = -32.0000
4. Converting from kg to Pounds
Your system was calibrated to show kg but you want to change it to Pounds without altering the
calibration.
Set Scale = 2.205 and Offset = 0.0000
24
How to install option boards
!
Where the product is intended for “UL” installations
removal or addition of option boards is not permitted.
Warning:
Disconnect
all power before exposing
the rear of the meter
If you want to open your meter to install or modify option boards, follow these steps...
1)
Switch off power to the meter and unplug all connectors.
2)
Unclip the front bezel. This is easier if you squeeze the top and bottom of
the case, near the front.
3)
Remove the small screws shown in the diagram. If the meter doesn’t yet
have an output option board, the top screw may not yet be fitted.
4)
Slide the electronic boards out throught the front of the case. You can easily
separate the upper option board from the
main board. We strongly suggest that you
use anti-static precautions to prevent
damage to the semiconductors.
The board assemblies will look something like this...
Main board
Upper option board
RS232, RS422
RS485
plug-in option
Alarm relays.
Depending on
the option, there
will be none, 2 or
4 relays fitted.
Analogue
output
plug-in option
The analogue output and RS232 or RS422 plug-in option boards are fixed to the upper option
board with white plastic pillars. You must apply a firm force when fitting or removing these options.
Always be careful to connect the pins to sockets accurately. When reassembling, make sure
option boards are firmly fixed to the upper option board. When the boards are replaced in the
case, secure them again with the two small black screws.
25
Analogue Output - page 1
!
Where the product is intended for “UL” installations
removal or addition of option boards is not permitted.
Warning:
Disconnect
all power before exposing
the rear of the meter
The analogue output board plugs onto the 0, 2 or 4 alarm upper option board.
It plugs onto a pair of connectors and is secured by two snap-pillars.
Check that the unit is set for voltage or current output, to suit your application.
Warning:
Disconnect all cables from
option board before adjusting
Current
0-20mA & 4-20mA
Voltage
0-10V
NOTE: If you have the bipolar -10 to
+10V output analogue option (ANB)
there are no configuration jumpers.
AL1
AL2
AL3
AL4
Analogue
Output
Option
Serial Data
Comms Option
Re-assemble the meter, apply power and follow the Analogue Output Settings procedure on the
next page.
You can set the analogue output to operate over a display range of your choice, to
create 0-20mA, 4-20mA or 0-10V, or, with the ANB version, -10V to +10V, fully isolated.
Default=4-20mA
Please see the following page for a guide how to do this.
Handy Feature
You can tell if an analogue output is fitted to your meter, and if it has been set for voltage or
current, by viewing the ‘Summary’ display.
To see this, press the two outer buttons of the display for 3 seconds. You will also see the
summary when you first switch on your meter.
26
Analogue Output - page 2
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
Your analogue output can cover 0-100% of its range over a display range which you can set.
For example, you might want 4-20mA output, for a display range of 500 to 1000.
You would press the Analogue O/P button for 3 seconds, and select 4-20mA
Then set 0% = 500
Then set 100% = 1000
AL1
AL2
AL3
AL4
0%
100%
OUTPUT
ALARMS
OK
DIGIT
Press the OUTPUT button for 3 seconds. If an output board is fitted, the display will confirm this
and confirm the range chosen by the jumpers on the previous page.
Zero Setting
The 0% LED will flash. Select the Output range you want. Then select net or gross.
Use the DIGIT,
output.
and
Press OK when done.
buttons to set the display value at which you want 0% analogue
Default = 4-20mA, Net, 0000.00
Span Setting
The 100% LED will flash.
Use the DIGIT,
output.
and
Press OK when done.
buttons to set the display value at which you want 100% analogue
Default = 0100.00
When you have finished setting the meter, put the lockout switch in its ON position now, to prevent
your settings from being changed.
27
Alarm Board Configuration
!
Warning:
Disconnect
all power before exposing
the rear of the meter
Where the product is intended for “UL” installations
removal or addition of option boards is not permitted.
You can have 3 types of alarm board:a)
An alarm board with no relays, which will simply allow you to fit analogue and/or
serial output options.
b)
An alarm board with 2 relays, to which you can also fit analogue and/or serial
output options.
c)
An alarm board with 4 relays, to which you can also fit analogue and/or serial
output options.
For failsafe operation (where contacts open on alarm or when power is lost to the meter) set the
jumpers for OPEN CONTACTS as shown below, and DE-ENERGISE on alarm, in the alarm
setup menu. To access the alarm board, remove power from meter, including any power which
might be on the alarm output board.
Look on the top and bottom surfaces of the case, near the rear. You will see two small screws,
one on each surface. Remove both screws. Now, clip off the front bezel and slide the meter
assembly carefully out via the front of the case. The relay board plugs into the main board. Gently
separate the two boards.
Warning:
Disconnect all cables from
option board before adjusting
Warning:
All switched power must
come from the same phase.
Open Contacts
Closed Contacts
Default
AL1
AL2
AL3
AL4
Analogue
Output
Option
Serial Data
Comms Option
Select relay output contact
status, when relays are
de-energised (power removed
from meter) by placing these
jumpers. Each relay has a snubbing
network to minimise contact sparking.
Relay
2n2
100R
When you have set the jumpers, refit the board to the meter and carefully slide the
assembly back into the case.
Fit the two small screws to the top and bottom surfaces of the case.
28
Alarm Programming
Lockout notes: Alarm Lock switch = OFF when changing. Switch Alarm Lock to ON after changing
Alarm lockout switch must be OFF. Press alarm button briefly to choose an alarm channel The AL1, AL2, AL3 or AL4 leds tell you which channel is selected.
Press the alarm button for 3 seconds to show the Setpoint window - you can now edit the
setpoint value with the DIGIT, UP and DOWN buttons. Press OK when done.
SET pt
3 seconds, change setpoint only
al cfg
If you want to change the function of an
alarm channel, keep your finger on the
alarm button for a further 3 seconds after
you see the Set.pt prompt, which will bring
up the AL CFG (alarm configure) prompt.
6 seconds, change alarm function and setpoin, or only 3 seconds if the alarm is currently set OFF
Inactive
off
High Alarm
hi
Low Alarm
lo
FL hi In-flight, high alarm
fl lo In-flight, low alarm - manual
fl hi A In-flight, high alarm - automatic
fl lo A In-flight, low alarm - automatic
inbnd In band alarm
outbnd Out band alarm
Default
Choose whether the alarm will
operate on Gross or Nett value.
gross
net
Default
Setpoint
If mode = Hi or Lo
Set pt
Setpoint
If mode = FL_Hi,
FL_Lo, FL_Hi_A or
FL_Lo_A
Set Pt
High band limit
If mode = in_bnd
or out_bnd
hi
Hysteresis
Hyst
In-flight amount
flight
next page
Low band limit
lo
29
Alarm Programming
From previous page
Relay coil state during alarm.
Relay de-energised *
Relay energised
rly de
rly en
* Use rLY dE for failsafe applications.
This will cause the alarm contacts to go
into alarm status if power is lost to the
meter.
Default
On.tr
On trip delay
seconds
On.tr
Relay status
Input signal
Setpoint
Can be used alone, or combined
with Off_tr to give a delay on alarm
and at end of alarm, or tout to give
arepeating on/off variable cycle
Default =00.0
Example of a HIGH alarm relay, with delayed trip action
On.tr
On.tr
t.out
t.out
Time out
seconds
t.out
Relay status
Input signal
Setpoint
To be used with On_tr to cycle the
output relay with independantly
settable on and off duration
Default =00.0
Example of a HIGH alarm relay, with cyclic trip action
Relay status
Off Trip delay
seconds
off.tr
Off.tr
Input signal
Setpoint
Can be used alone, or combined
with On_tr to give a delay on
alarm and at end of alarm
Default =00.0
Example of a HIGH alarm relay, with delayed trip reset
End
See the alarm board configuration page also, for details on selecting normally open or
normally closed contact outputs.
See the following pages for more detailed descriptions of how each alarm mode operates.
Remember to put the alarm lock switch ON when finished, to keep your settings safe.
30
Hi Alarm relay action, no Hysteresis
Alarm tripped
Alarm reset
The alarm relay will activate when the measured value is at or above the setpoint value.
The alarm relay will reset whe you fall below the setpoint value
Set.Pt Value
Alarm = Hi
Setpoint = 69
Hysteresis = 0
Hi
Mode
Set pt
Setpoint value
Hyst
Hysteresis = 0
Default =0
Hi Alarm relay action with Hysteresis
Alarm tripped
Alarm reset
The alarm relay will activate when the measured value is at or above the setpoint value.
The alarm relay will reset whe you fall below the setpoint value by the hysteresis amount
Set.Pt Value
20 Hyst value
Alarm = Hi
Setpoint = 69
Hysteresis = 20
Hi
Mode
Set pt
Setpoint value
Hyst
Hysteresis
Default =0
31
Lo Alarm relay action, no hysteresis
Alarm tripped
Alarm reset
The alarm relay will activate when the measured value is at or below the setpoint value.
The alarm relay will reset whe you rise above the setpoint value
Set.Pt Value
Alarm = Lo
Setpoint = 43
Hysteresis = 0
LO
Mode
Set pt
Hyst
Setpoint value
Hysteresis = 0
Default =0
Lo Alarm relay action with Hysteresis
Alarm tripped
Alarm reset
The alarm relay will activate when the measured value is at or below the setpoint value.
The alarm relay will reset whe you rise above the setpoint value by the hysteresis amount
30 Hyst value
Set.Pt Value
Alarm = Lo
Setpoint = 43
Hysteresis = 30
LO
Mode
32
Setpt
Setpoint value
Hyst
Hysteresis
Default =0
InFlight Hi Alarm relay
The In-Flight alarm modes are used in applications where you want to
accurately fill one container from another.
If you were to simply close the shutoff valve when the weight reaches
your desired amount, you would find thet the weight is higher than you’d
hoped for.
This is because some material is still in mid-flight when you send the
alarm signal to shut the valve, and the valve will take some time to fully
close.
The load measured on the loadcell platform will continue to increase
after the alarm signal is sent to the shutoff valve.
Which mode should I use?
If your loadcells are mounted
under the container being
filled, as shown here, you
should use the InFlight HI
mode, as the weight is
increasing on the loadcell
platform during
filling.
The InFlight modes subtract or add this “In-Flight” amount from the
setpoint to ensure that your final fill amount is as close as possible to
your desired value.
In automatic mode, the unit will note the error after the first fill and try to
correct for it on the next fill by moving the trip point by all the error amount
on the 2nd fill and by half the subsequent error amount on each
following fill. It will constantly monitor the error and correct by half that
amount, to ensure a smooth trend towards accurate filling.
Shutoff Valve
Default =0
Inflight material
Loadcell platform
Manual or Automatic ?
You can set a manual value for the Inflight amount, if you know how much in-flight material will continue to fall into the
container after the shutoff valve has been triggered, and if this value is likely to remain consistent from fill to fill.
If you don’t know the inflight amount or if the material flow properties may change from batch to batch, you can use the
automatic mode.
To set, press the alarm button until you illuminate the alarm LED channel you want to change. Press the alarm button
again for around 6 seconds, you will see “Set.Pt” followed by “AL CFG”. Use the Digit, UP/Down buttons and OK to set.
Manual Mode
FL HI
SetPt
Automatic mode
FLH A
Desired Setpoint
This is the amount
you want to fill.
flight
Inflight amount
You can set a best
guess for automatic
mode, to speed the
correction.
33
InFlight Lo Alarm relay
The In-Flight alarm modes are used in applications where you want to
accurately fill one container from another.
If you were to simply close the shutoff valve when the weight reaches
your desired amount, you would find thet the weight is higher than you’d
hoped for.
This is because some material is still in mid-flight when you send the
alarm signal to shut the valve, and the valve will take some time to fully
close.
The load measured on the loadcell platform will continue to increase
after the alarm signal is sent to the shutoff valve.
Which mode should I use?
If your loadcells are mounted
under the container being
emptied, as shown here, you
should use the InFlight LO
mode, as the weight is
decreasing on the loadcell
platform during
filling.
The InFlight modes subtract or add this “In-Flight” amount from the
setpoint to ensure that your final fill amount is as close as possible to
your desired value.
Loadcell
Loadcell
Shutoff Valve
Inflight material
In automatic mode, the unit will note the error after the first fill and try to
correct for it on the next fill by moving the trip point by all the error amount
on the 2nd fill and by half the subsequent error amount on each
following fill. It will constantly monitor the error and correct by half that
amount, to ensure a smooth trend towards accurate filling.
Manual or Automatic ?
You can set a manual value for the Inflight amount, if you know how much in-flight material will continue to fall into the
container after the shutoff valve has been triggered, and if this value is likely to remain consistent from fill to fill.
If you don’t know the inflight amount or if the material flow properties may change from batch to batch, you can use the
automatic mode.
To set, press the alarm button until you illuminate the alarm LED channel you want to change. Press the alarm button
again for around 6 seconds, you will see “Set.Pt” followed by “AL CFG”. Use the Digit, UP/Down buttons and OK to set.
Manual Mode
Automatic mode
34
FL LO
FL LOA
Set Pt
flight
Desired Setpoint
This is the amount
you want to fill.
Inflight amount
You can set a best
guess for automatic
mode, to speed the
correction.
In-Band Alarm relay
Alarm tripped
Alarm reset
The alarm relay will activate when the measured value is below the HI value and above the LO value
HI Set.Pt Value
LO Set.Pt Value
Alarm = In.Bnd
Hi = 69
Lo = 35
in bnd
Mode
lo
hi
HI Setpoint value
LO Setpoint value
Out-Band Alarm relay
Alarm tripped
Alarm reset
The alarm relay will activate when the measured value is above the HI value or below the LO value
HI Set.Pt Value
LO Set.Pt Value
Alarm = Out.Bnd
Hi = 69
Lo = 35
OUTbnd
Mode
hi
HI Setpoint value
lo
LO Setpoint value
35
Serial Output - page 1
!
Warning:
Disconnect
all power before exposing
the rear of the meter
Where the product is intended for “UL” installations
removal or addition of option boards is not permitted.
The serial output board plugs onto the 0, 2 or 4 alarm upper option board.
It plugs onto a pair of connectors and is secured by a snap-pillar.
OPEN
RS232 board
No jumpers needed
Analogue
Output
Option
AL1
AL2
AL3
AL4
OPEN
RS485 board
If fitted, connects 120 Ohm terminator
If fitted, sets a bias of +0V on Sig A
If fitted, sets a bias of +5V on Sig B
Serial Data
Comms Option
Warning:
Disconnect all cables from
option board before adjusting
Typical UART output
S
0
0
1
1
0
1
0
0
S
S
0
0
1
1
0
1
0
0
S
A(+)
B(-)
A(+)
B(-)
RS485 data line levels
The 120 Ohm termination resistor should be fitted to only the last display on an RS485 data link,
to improve noise immunity. A terminator should also be fitted on the sending device.
The bias jumpers are not normally fitted, but are available if your system needs biasing, to keep
it in a valid idle state when data is not present.
Re-assemble the meter, apply power and follow the Serial Output Settings procedure on the
next page.
Handy Feature
You can tell if a serial output is fitted to your meter by viewing the ‘Summary’ display. Press the
two outer buttons of the display for 3 seconds. You will also see the summary when you first
switch on your meter.
36
Serial Output - page 2
Lockout notes: Cal Lock switch = OFF when changing. Switch Cal Lock to ON after changing
AL1
AL2
AL3
AL4
0%
100%
OUTPUT
ALARMS
OK
DIGIT
Briefly press together
Baud :- Select from 300,600,1200,2400,4800,9600,19200,38400, 57600,115200 Default =9600
dF = Data Format = 8n1, 7n1, 7E1, 701 Default =8n1
Prot = P1 (polled ASCII), P2 (Polled Modbus ASCII), C1 (Continuous), H1 (GPS) Default =P2
Addr = Address = 00 to FF Default =F7
t.rEP = Reply Delay time in milliseconds 00 to 99 Default =05
t.Chr = Character space timing in milliseconds 00 to 99 Default =00
Protocol C1 – Continuous output
(Enable line to common gives output)
Meter sends: 8 characters<CR>
e.g.
20
20
20
20
20
20 20 20 20 2D 31 37 0D
20 20 20 2D 31 2E 36 0D
20 20 20 20 31 2E 38 0D
20 20 20 20 20 4F 52 0D
20 20 20 20 20 55 52 0D
(-17)
(-1.6)
(+1.8)
(OR)
(UR)
decimal position = 0
negative value
positive value
over range
under range
Protocol H1 - GPS clock data format for use with our ASR-GPS
Protocol P1 – Polled ASCII
Controller sends: <STX> ADDRH:ADDRL r <ETX> e.g. 02 46 37 72 03 ( to device F7)
Meter replies <STX> 8 characters <ETX>
e.g.
02 20
02 20
02 20
02 20
02 20
20 20 20 20 2D 31 37 03
20 20 20 2D 31 2E 36 03
20 20 20 20 31 2E 38 03
20 20 20 20 20 4F 52 03
20 20 20 20 20 55 52 03
(-17)
(-1.6)
(+1.8)
(OR)
(UR)
decimal position = 0
negative value
positive value
over range
under range
Protocol P2 – Polled ASCII Modbus - See next page
When you have finished setting the meter, put the lockout switch in its ON position now, to prevent
your settings from being changed.
37
Modbus ASCII
Select protocol P2, using the previous page.
The displayed value is available as a 32 bit 2’s compliment signed integer in registers
0x0000 and 0x0001
Register 0x0000 Display value low word
Register 0x0001 Display value high word
The decimal point position is available in the low byte of register 0x001E.
The high byte is not currently used, but should be masked off to guarantee compatibility with
future firmware releases.
Some examples:If meter shows 9
If meter shows 9.9
If meter shows 9.99
If meter shows 9.999
38
Display value reads 9
Display value reads 99
Display value reads 999
Display value reads 9999
Decimal position reads 0
Decimal position reads 1
Decimal position reads 2
Decimal position reads 3
Real Time Clock settings
An optional real time clock module may be fitted to the display. Most often, this is to allow
date and time stamps to be included in serial data transmissions.
Real Time Clock board
Press
To access the settings, you
will need to move the lockout
switch to its OFF position
Press the 3 left buttons
together for 3 seconds
Then use UP or DOWN
buttons to set the date and
time, press OK to accept.
yr = year 10=2010 etc
m = month 01 = January
dt = day of month 01 to 31
XX:XX = hour 00 to 23
XX:XX = minutes 00 to 59
Then you will see XX:XX with
4 x flashing LEDs
Press OK at the exact time
you set.
Lockout switch
Mode Settings
Press > 3sec.
to set modes
1. 12/24 hour : Use UP/DOWN button to choose, then press OK.
2. Daylight saving Off, EU, US: Use UP/DOWN button to choose, then press OK.
Choose to suit your location.
3. Sync. ON/OFF: Use UP/DOWN button to choose, then press OK .
Choose ON if using an ASR-GPS master.
39
Logic input connections and functions
Warning:
Disconnect all
power before
exposing the
rear of the meter
5
6
7
8
9
10 11
CC.3
4
CC.2
3
CC.1
2
Alarm Lock
Calib’n Lock
1
Common
Logic Inputs
12
13
Warning:
Logic inputs are
NOT isolated
from input signal
Remote The open circuit voltage
contact is 5V and the contact
closures current is 1mA DC
Logic 1 = Contact Closed
You can choose the function of each of the three Contact Closure logic inputs. Set the calibration lockout switch in its
upper position. Then press the Output and Alarms buttons together for approx 1/2 second. Press OK button until you
see CC.1. Press the UP or DOWN button to choose the function of CC.1, then press OK.
Now you can set CC.2 and CC.3 in the same manner.
Contact Closure Connector
CC.1
CC.2
CC.3
= Factory default
Chosen connector function
Tare
Tare
Tare
Tare display to 0
PV
PV
PV
View Peak or Valley memory
rSt
rSt
rSt
Reset tare, peak, valley, alarm latch
hold
hold
hold
Freezes display
net.gro
net.gro
net.gro Toggles between nett & gross
If the MEM08 multi-page memory option
has been installed, the following options
will also be available ...
PA.1
PA.1
PA.1
Page Address 1 (binary)
PA.2
PA.2
PA.2
Page Address 2 (binary)
PA.4
PA.4
PA.4
Page address 4 (binary)
COP.1 = Copy these settings to all other page addresses. Set this before you set up your first page, so that all
other pages will share the same contact closure functions.
COP.0 = Do not copy these settings to all other page addresses. Use this after you have set any global
parameters, and now wany to make unique settings for each page.
Example:- if you want 4 pages of memory plus a tare control for each page, set COP.1 , set CC.1=PA.1,
CC.2=PA.2 and CC.3=Tare
When you have finished setting the functions of the contact closure terminals, Set COP.0 and return the
lockout switch to its DOWN position, to prevent accidental alterations.
40
Peak, Valley, Tare, Hold, Net/Gross and Reset
By default, CC.1 input acts as a Tare input.
By default, CC.2 input acts as a Peak/Valley view input.
By default, CC.3 input acts as a Reset input.
These contact closures will only be active if the calibration lockout switch is in its ON position (down)
You can also have Tare, Peak/Valley view, Net/Gross, and Reset on the front panel of the meter. To activate these
functions, you must connect the Common terminal of the Logic Input connector to the CC terminal function you want
available on the front panel. If you want to connect remote pushbuttons to the logic inputs AND use the front panel
pushbuttons, you must use normally closed pushbuttons.
If your meter has the MEM-08 option installed, you will not be able to use all the rear contact closure Peak, Valley, Tare
and Reset functions, but you will be able to use the front panel buttons for these functions
Optional MEM-08 option functions
If your meter has had the MEM-08 option installed, you can allocate up to 8 individual pages of different setup data.
You don’t need to enable all pages, however. For example, if you wanted only 2 pages, perhaps to allow you to switch
between DegC and DegF, you need only set CC.1=PA1, CC.2=PV and CC.3=rST
The logic map for the full page selection is....
CC.3
CC.2
CC.1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
In this example, CC.1, CC.2 and CC.3 are each set with individual page
addresses, PA.1, PA.2 and PA.3
Page
Page
Page
Page
Page
Page
Page
Page
0
1
2
3
4
5
6
7
0 = Contact open
1 = Contact connected to common
CC.3
CC.2
CC.1
X
X
X
X
0
0
1
1
0
1
0
1
In this example, CC.1 and CC.2 are each set with individual page
addresses, PA.1 and PA.2. CC.3 can be used for Tare, PV or Reset
Page
Page
Page
Page
0
1
2
3
0 = Contact open
1 = Contact connected to common
CC.3
CC.2
CC.1
X
X
X
X
0
1
In this example, only CC.1 is set with an individual page address, PA.1
CC.2 and CC.3 can be used for Tare, PV or Reset
Page 0
Page 1
0 = Contact open
1 = Contact connected to common
41
Reverse/Mirror/Heads-Up display
The INT2 display can be ‘mirror-imaged’ to allow it to be viewed as a reflection in a rear-view
mirror, windscreen or other reflective surface.
This can be useful for creating ‘heads-up’ displays, for some test installations where the display will be veiwed in a mirror, as a display for drivers reversing large vehicles, etc.
Reverse / Mirror display
Press both buttons briefly, press OK 5x
Change with UP/DOWN button. OK=Accept
Choose Rev.d 0 for normal display
Choose Rev.d 1 for reflected display
42
rEv.d 1
Calibration lockout OFF
Equipment Specifications
Bezel size
Panel Cutout
Case Depth
Weight
Case Material
Connectors
48mm high by 96 mm wide (1/8 DIN)
45 mm high by 92 mm wide
125 mm including connectors
300 grammes
Black polycarbonate
Detachable Screw Terminal connectors
Environmental
Storage Temperature range -20 to +70C, non condensing
Operating temperature range 0 to 50C, non condensing
Front sealed IP65.
Power
Burden
100-240 VAC, 45 to 60Hz or 11-30 VDC optional
10VA maximum
Input Signals (bipolar)
Input Resistance
Accuracy
Span tempco
Zero Tempco
Excitation voltage
Excitation Sense
Filtering / smoothing
A/D conversion
4 or 6 wire loadcell up to +/-40mV
>10 Megohms
+/-0.05% of range
25 ppm/Degree Celsius
30 ppm/Degree Celsius
10VDC nominal rated at 120mA. Must connect to Sense.
Ratiometric, 4V absolute minimum allowed after line drops
Selectable time constants of 0 to 5 seconds.
Sigma-Delta 10 conversions per second, 50/60Hz rejection
Resolution 1 in 400 000 max. over full range
10 readings per second.
-199999 to +199999, depending on available signal level.
Display update rate
Display Range (max)
Plug-In Output Options
Analogue O/P
Drive capacity
Isolation
Accuracy
Linearity
Resolution
Scaling
0-10VDC
-10 to +10V
0-20mA
4-20mA
>1K Ohms
>1K Ohms
<500 Ohms
<500 Ohms
250 VAC Optically isolated
+/-0.1% range, +/-10mV for ANV, +/-10uA for ANI, 50ppm/C stab.
+/-0.02% of range
better than 0.2mV for 10v, 0.4uA for 20mA range
Fully adjustable, direct or inverse
Alarm Relay O/P
2 or 4 alarms SPST rated 2 Amperes at 250 VAC,
resistive load. All relays must switch power from the same phase.
Selectable normally open or normally
closed by on-board
switches.
Selectable energise or de-energise on trip by menu
Independant hysteresis on each alarm relay.
ASCII Data O/P
Format
Isolation
RS232 or RS485
Selectable continuous or polled modes. Baud rates 300 to 115200
250 VAC optically isolated
Calendar/Clock option
Accuracy better than +/- 10 seconds per month (DS3231SN)
Battery backup during power loss. Battery = CR1620 3V Lithium
43
Record of revisions
1 May 2007
22 May 2007
22 August 2007
2 October 2007
6 May 2008
27 May 2008
26 June 2008
8 Oct. 2008
28 Oct. 2008
13 Nov. 2008
21 Nov 2008
9 Dec 2008
15 Dec 2008
5 March 2009
30 June 2009
13 Nov. 2009
11 Feb. 2010
26 April 2010
44
Released with F00.001 software
Added RS485 logic level diagram
Added Zener barrier application notes.
F00.006 software. Linearisation added. Inflight compensation and band alarms added.
Brightness setting added, Menu timeout delay added.
Added ‘General Description’ page. Added power frequency spec.Mounting & Installation page
added. Wiring Advice page added
Added UL label sample to front page. Added ClassII connection details.
Added Bootup option menu, screw torque, AWG wire gauges
Software version 11 released. Filter Jump Percentage added. Serial protocol H1 added for GPS
time synchronisation. 4 char. prompt library included for use on 4 digit Fusion displays.
Described software update method via front panel port. Added Reverse/mirror display for headsup applications.
Version 12 software released. Includes enhancements for the counter version of the meter.
Amended VA ratings and added UL listed graphic.
Version 14 software released, upgrading version 12 (no version 13). Corrects reset bug on
totaliser and variable brightness bug.
Added requirements for cULus fuse type and removed front panel programming reference.
Added warning not to alter option boards in UL listed applications
Connections page changed logic input labels to CC.1 to CC.3. Added MEM08 details
Address update
Version F00.16 Software released
Added Hold and Nett/Gross logic inputs
Added Real time clock settings
Added terminal numbering
Added Modbus ASCII page
Added relay timers
Added Default setting notes
Added factory default setting method
Added notes on connection page for millivolt-only input signals - adding a 1/2 bridge to ensure
the input stage remains central in its dynamic range.
Added note to say that if you are using the lineariser, be sure that the lowest weight you want to
measure is calibrated with the first point, and the highest weight is set with the last lineariser
point.
Waste Electrical and Electronic Equipment
(WEEE)
In Europe, this equipment must be disposed of in accordance with European
Parliamentary Directive 2002/96/EC
This directive encourages recycling and the reduction of waste materials in the
environment.
This means it must be sent to an approved recycling plant if you want to dispose of it.
It must not be thrown away in general rubbish.
If you are unable to dispose of this item locally, you may send it to us for recycling.
Conditions:
1. We will only accept items of our manufacture.
2. You must pay for the transport of the goods to us.
3. We will only accept items if they include a signed declaration by an authorised
person in your organisation, stating that :i.
ii.
The item is safe to handle and has no contaminants which may be
harmful to health.
You wish us to dispose of or destroy the item(s)
45
Application Notes
Zener Barriers:
Here are some typical zener barrier arrangements using MTL barriers.
!
You must ensure that the barriers you choose for an installation are suitable
for the hazardous area conditions on site.
You should seek advice from your preferred barrier supplier to help you choose
suitable types. Suppliers include MTL and Pepperl & Fuchs
When using Zener barriers, connect terminal 7 (Common) of the meter to ground, to ensure
that the signals are all kept below the Zener conduction voltage. We provide 10V DC excitation at up to 120mA.
Because the loadcell will draw some current, and the zener barrier is resistive, less than 10V
will be present across the loadcell. You must ensure that the barrier scheme you choose will
allow at least 4V to exist across the loadcells, or your display will not function properly.
1 or 2 x 350 Ohm
loadcells in parallel
3
4
766P
1
2
Exc+
Exc -
3
4
761P
1
2
Sense +
Sense -
3
4
761P
1
2
Sig +
Sig Terminal 7
Note that we have added an extra barrier when using 3 or 4 loadcells in parallel, to reduce the
volts drop, to ensure we have at least 4V across the loadcell...
3 or 4 x 350 Ohm
loadcells in parallel
3
4
766P
1
2
Exc+
3
4
766P
1
2
Exc -
3
4
761P
1
2
Sense +
Sense -
3
4
761P
1
2
Sig +
Sig Terminal 7
46
Application Notes
Creating a different excitation voltage for your sensor.
The meter generates 10V DC excitation, which suits most bridge-type strain and
load sensors.
If your sensor needs a different voltage, between 5V and 10V, you can add an
external resistor to achieve this. Because the meter uses a ratiometric
measurement system, the meter will compensate for any resistor inaccuracies,
thermal drift etc.
The meter is not designed to operate with excitation voltages less than 5V
Step 1. Calculate the resistor value Radd you will need.
(or use our online calculator at http://www.london-electronics.com/excitation.htm)
What is your sensor resistance? For example 350 Ohms, or if 4 x 350 Ohm
loadcells in parallel = 350/4 = 87.5 Ohms
Sensor Resistance = Rsensor
Radd= ([(10-Vdesired)/Vdesired] x Rsensor) Ohms
Step 2. Calculate the resistor’s power rating you will need
(or use our online calculator at http://www.london-electronics.com/excitation.htm)
Power rating = at least (2 x [(10-Vdesired)2/Radd] ) Watts
1
2
3
4
5
6
Sense-
Sig-
Sig+
Sense+
Excitation +
Signal I/P & Excitation
Excitation -
Step 3. Connect the resistor into your circuit.
Radd
47
Declaration of Conformity
Declaration Reference
Issue Date
Products Covered
Title
: INTUITIVE Mk2
: 30 April 2007
: INTUITIVE Mk2 series
: DOC-INTUITIVE2
This is to confirm that the Product covered by this declaration have been designed and
manufactured to meet the limits of the following EMC Standard :
EN61326-1:1997
and has been designed to meet the applicable sections of the following safety standards
EN61010-1:2001
Conditions
The meters are permitted a worst case error of 1% of A/D range during electro-magnetic
disturbance, and must recover automatically when disturbance ceases without the need for human
intervention, such as resetting, power-down etc.
The meters covered by this certificate must be installed in adherence to the following conditions
:Signal cabling shall be routed separately to power carrying cabling (includes relay output wiring)
All signal cabling shall be screened. The screen shall only be terminated to the power earth
terminal
Declared as true and correct, for and on behalf of London Electronics Ltd.
J.R.Lees
48
Director
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