Page is loading ...
Flowscale'" System
l
nstruction Manual
December
1992
Table
of Contents
1
FlowScale" System
..
..............................................................................................
1
11 General 1
1.2 Ooerational Features
..
........................................
2
1.3 Programmable Features 2
1.3.1 Front Panel Programmable Features
...............................................................................
2
1.3.2 Internally Programmable Features
.........................................................................................
3
1.3.3 Error Recovery Modes
...
3
1.4 Communication Features
............
..
.....................................................................................
4
1.5
Unit Identification
...
.........................................................................................
4
1.6 Mounting the
FlowScale Unit
.
4
2
Installation
..............
.
9
2.1 General
................................................................................................................................................
9
2.1.1 Location
..................................
..
9
2.1.2 Flow Direction
................
...
...............................................................................................
9
2.2 Mounting 11
2.2.1 General 11
2.2.2 Mounting the
D25toD600 11
2.2.3 Orientation
.........................
..
...................................................................................................
11
2.2.4 Slug Flow 12
2.2.5
LoadingIUnloading
.....................
..
......................................................................................
12
2.3 Mechanical Connections
........
..
...........................................................................................
14
2.3.1 Pipe Supports
..............................................................................................................................
14
2.3.2 Process Fittings 14
2.3.3 Downstream Valve
.....................
..
......................................................................................
15
2.4 Electrical Connections
...............
..
..........................................................................................
16
2.4.1 General
..........................................................................................................................................
16
2.4.1.1 D25 through
D300 Sensors
...............................................................................................
16
2.4.1.2
D600
Sensors
..........................................................................................................................
17
2.4.2 Installing the
Flowscale Electronics
....................................................................................
17
2.4.3 Power Connections
........
....
.............................................................................................
17
2.4.3.1 Flowscale Electronics Connectons
............................................................................
17
2.4.3.2
D600 Power Connections 18
2.4.4 Sional
W
rno: Sensor lo the FlowScale Electronics
......................................................
18
- -
.
2.4.4.1 Cable Connections 18
2.4.4.2 Conduit Connections
...........................................................................................................
19
2.5 Start-up
.........................................................................................................................................
29
2.5.1 Power
..........................................................................................................................................
29
2.5.2 Setting Zero Flow
......................................................................................................................
30
3
Operation
a
3.1 General
..............................................................................................................................................
3l
3.2 Operating Functions 31
3.2.1
ModeKey
......................................................................................................................................
3l
3.2.2 Increase Key
..............................................................................................................................
3l
3.2.3 Decrease Key
..............................................................................................................................
31
3.2.4 Clear Key
.....................................................................................................................................
32
3.3 Parameter Selection
...................................................................................................................
32
3.3.1 Transmit Receipt Ticket
.........................................................................................................
32
3.3.2
InventoryTotal 32
3.3.3 Display Units
..............................................................................................................................
32
3.3.4 Scaled Pulse Digit
....................................................................................................................
33
3.3.5 High Alarm Level
38
3.3.6 Low Alarm Level
........................................................................................................................
38
3.3.7 Low Flow Cutoff
...............................................................................
39
3.3.8 Filter Constant
39
3.3.9 Frequency Output
.............................
....
...................................................................................
40
3.3.10 Frequency Set Point
..............................................................................................................
40
3.3.11 Current Output
......................................................................................................................
40
3.3.12 Current Set Point 41
3.3.13 Communications Port 41
3.3.14 Unit ID# 41
...........
......................
3.3.15 Controller ID#
..
41
.
.
3.3.16 Cornmun~cat~onsMode
.......................................
42
3.3.17 Baud
...........................................................................................................................................
42
3.3.18 Parity
..............
..
....................................................................................................................
42
3.3.19 Error List Viewing 43
.
3.3.20 Time and Date
...............
....
.........
..
.........................................................................
43
3.4 Internal Senings. Adjustments. and Reset
...........................................................................
43
3.4.1 Secure Switch
........................................................................................................................
44
3.4.2 CommaSwitch
44
3.4.3 Set Zero Flow Switch
...........................................................................................................
44
3.4.4
LCD
Contrast Adj~stment
.....................................................................................................
44
3.4.5 Meter Factor Switches
...........................................................................................................
45
3.4.6 Meter Type Switches
.............................................................................................................
45
3.4.7 System Reset Switch
......................................................................................................
45
3.4.8 Auto-Recover Switch 49
3.4.9 Current Gain Adjustment
.....................................................................................................
49
3.5 Error Detection and
Recovery
..................................................................................................
49
3.6
Svstem Considerations 50
3.6.1 Low Flow Cutoff Selection
....................................................................................................
50
3.6.2 Filter Constant Selection
....................................................................
50
3.6.3 Setting Zero Flow
50
4
RS-232
and
RS-485
Interfaces
............
..
.........
........................................................
54
4.1 General
54
4.2 Installation and Wiring
.............................................................................................................
54
4.2.1 Installation
54
4.2.2 RS-232-CWiring
..................................................................................................................
54
4.2.3 RS-485 Wiring
54
4.2.4 RS-485 Jumpers
.....................................................................................................................
55
4.3 Parameter Selection 55
4.3.1 Communications
PorlSelection
..........
..
......................................................................
55
4.3.1.1 Unit ID# Selection 55
4.3.1.2 Controller ID* Selection
.....................
..
......................................................................
55
4.3.1.3
Communical~ons Mode Selection
-
56
4.3.1.4 Baud
Selecuon
...................
..
.........................................................................................
56
4.3.1.5 ParitySelection 56
4.4 Data Protocol
.............................................................................................................................
56
. .
4.5 Modes of DataTransmlsscon 57
4.5.1 Ticket Printer Mode 57
4.5.2 Real Time Data Mode 57
4.5.3 Command Mode 57
5
Tmuble-shooting 65
5.1 Error Codes
.................................................................................................................................
65
5.2 Fault Isolation
.-
67
5.3 Recalibration
..............
..
68
.
Appendix
I
flowScale Transmlner Cable Preparation Instructions
........................
70
Appendlx
li
RowXale Unit
Spare
Parts
Ust
....................................................................
72
Tables
Table 1 RowScale Electronics Specifications
....................
..
1
Table 2 Wire List of
FlowScale Electronics Outputs
.-
.
21
Table 3 FlowScale Electronics Parameter Selection Menu
.-
..................................................
3l
Table 4a Display Units Available by Sensor Model (English Units)
......................................
34
Table 4b Display Units Available by Sensor Model (Metric Units)
......................................
35
Table 5 Display Rate and Total Format lor Standard Pressure
Stainless
Steel Sensors
..........................
..
.........................................................................................
36
Table 6 Scaled Pulse Digit Selection by Sensor Model
.........................................................
46
Table 7 Meter Tvoe Switch Settinas
...............................................................................................
47
.
.
.
Table 6 Maximum Full Scale Flow by Sensor
..........................................................................
48
Table
9
Error Codes
..........................................................................................................................
65
Figures
Fiaure 1 Flowscale Electronics DiSDlav Face
................................................................................
4
.
.
.
Figure 2 Mounting Dimensions
..........................................................................................................
5
Fiaure
3
Mountina O~tions: Panel Mount
.......................................................................................
6
. .
.
Figure 4 Mounting Options; Walt Mount 7
Figure 5 Mounting Options; Pipe Mount 8
Figure6
Installation Flow Direction; D25
.
D600
.......................................................................
10
Figure 7 Mounting with Case Down for Liquids
....................
...
.............................................
13
Fiaure 8 Mountina with Case
UD for Gases
.................................................................................
13
.
.
Flg~re
9
Mo~nling in a Vert~cal Line
...............................................................................................
13
F~gure 10 Typical Installat~on; D25 through D600 Sensors
....................................................
15
FigJre 11 Sensor Wir ng Schematic
...........
..
............................................................................
20
F~gbre 12a FlowScale Electronics to Sensor Wiring Connections;
D6 and Dl2
...................................................................................................................
22
Figure 12b FlowScale Electronics to Sensor Wiring Connections;
025 through D300
23
Figure 12c FlowScale Electronics to Sensor Wiring Connections;
D600 24
Figure 12d FlowScale Electronics to Sensor Wiring Connections;
DL Sensors
.........................................................................................................................
25
Figure 13a Wiring Connections; FlowScale Electronics to DRT and FMS9
...................
26
Fioure 13b Wirina Connections:
Flowscale Electronics to DMS
......................................
27
~ii~re 13c wring ~onnect~ons.
.
FlowScale Electronics to NOC or NFC
..........................
28
Figure 14 Car0 Partitioning and Power Connections
51
Fiaure 15a Dl Board
.........................................................................................................................
52
-
Fgure 15b Output Board
..................................................................................................................
52
F gure 16
DDT Board
........................................................................................................................
53
F gure 17
RS.232.C Wiring Connections
....................................................................................
59
F gure 18 RS-485 Wiring Connections
....................................................................................
60
F aure
19
Flowscale Unit RS-485 Networks
...............................................................................
61
.
Figure 20 Ticket Printer Data Format
.............................................................................................
62
Figure 21 Real-Time Data Format
...............................................................................................
62
Fgure 22 Command Received Format 63
F
gdre 23 Commano Acknowledgement Format
......................................................................
64
Micro Motion is the trademark of Micro Motion
.
Inc. Boulder. CO
.
SMART FAMILY is the trademark of Rosemount Inc
..
Eden Prairie. MN
.
Hastelloy is the trademark of Cabot Corp., Kokomo. IN
.
Teflon is the trademark of E.I. Du Pont de Nemours Co
.
Inc., Wilmington
.
DL
FlowScale
System
1.1
General
The Micro Motione FlowScale system measures and displays mass flow-rate and
mass flow-total information for fluids The FlowScale system uses a non-intrusive, ob-
struction-free sensor unit in a stainless steel housing. The sensor unit installs directly
into the process. The transmitter is enclosed in a NEMA
IV housing and can
be
in-
stalled up to
1000 feet (300 meters) from the sensor unit The microprocessor-based
FlowScale electronics system is ideal for custody transfer and other similar applica-
tions. A method for sealing
(i.e. tampe~proof) the FlowScale housing is provided for
approval agencies.
Note: Throughout this manual, the term "sensor refers to a sensing element only.
The term "flowmeter" refers to a combined sensor and
transmitter package.
Table
1
Performance
FlowScale Electronics
Specifications
Unearlty:
Offset error:
Repeatability:
Alarm indicators:
Outputs
Integral display:
Frequency:
Current:
Scaled pulse:
Communications:
Environmental
Enclosure:
lransmltter
temperature:
Process temperature:
Power requirements:
f0.2% of rate over a 10:l turndown from full scale
*0.3% or rate over a 20:l turndown from full scale
*0.01% of full scale (zero set at process temperature
*18"F/*IO%).
Fault (N.O./N.C.), relay; 100 mA. 30 VDC.
High flow
(N.O.), solid-state relay; 100 mA, 30VDC.
Low flow (N.O.), solid-state relay; 100 mA, 30VDC.
Flow direction (N.O.) solid-state relay;
100
mA. 30 VDC.
4-1/2 digit rate. 10 digit total and inventory total, error
display, and parameter editing.
Optional; fully isolated, solio-state switch, supply
requirement of 5 to 30 VDC. 10.0
mA maximum; pro.
grammable from 1 to 10.000 Hz
Optional; fully isolated; 0-20 mA or 4-20 mA. 800 ohm
load max.
Fully isolated; 0 to 10 Hz. Accurate to
*1
count of the
display total. Programmable for 1 pulse per unit of
measure.
Optional; RS-232 and RS-485. DCE half-duplex.
NEMA
IV
dimensions: 7.5
W
by 11.3
L
by 8.5 inches D
(192
W
by 288
L
by 215 mm D)
Sensor dependent
115/230 VAC *20%. 50 or 60 Hz, 15 watts maximum
21
to 30 VDC. 15 watts maximum.
1
1.2
Operational Features
Display: The Flowscale electronics' displav is a two line. sixteen character. fivebv-
seven dot matrix, liquid crystal display (i~d). Normally, the display is used for mass
flow-rate and mass
fiow-total information. The display is also used for programming
parameters and to indicate error codes.
Dlsplay Modes: There are three display modes: the Owrating Disdav Mode. the
Pa-
ramelei Select~on Disp!ay Mode, and the Error Recovery
is play
ode.
In tqe Oper-
ating Display Mode, the display indicates mass flow rate and mass
flow total .n user-
selected units. In the Parameter Selection Disoiav Mode. the dis~lav indicates the oa-
rameter (variable) to be programmed. The inventory total is alsodisplayed in the
Pi-
rameter Selection Display Mode. When in the Error Recovery Display Mode, the dis-
play indicates error codes and the time and date of their occurrence.
Front Panel Push-Button Kevs: The Mode. Increase. Decrease. and Clear
kevs are
on the front panel. In the openling D splay Mode, the Clear key is
sea
to clear (re
set) the totalizer. In the Parameter
Selectton Display Mode, all lour swltches on tte
front panel are used to change parameters. In the Error Recovery Display Mode, all
four switches are used to evaluate an error and to reset an
error (see Section
3.2.
Op-
erating Functions).
Zero Adjustment:
A
single switch within the FlowScale electronics sets the system
zero. The FlowScale unit contains a circuit which
corrects for the zero shift of the el-
ectronics.
Q
Secum Switch: The SECURE switch is located within the RowScale electronics (see
figure
15a). Wnen this sw:tch is in the on or ~nsecured position, the FlowScale elec-
tronics will allow any parameter to be changed. When the $witch is in the on or se-
cure position, the FlowScale electronics will not allow changes to critical parameters.
Inventory Total: An inventory total is maintained within the FlowScale electronics
and is displayed when in the Parameter Selection Display Mode.
Dlagnostlc
Functions:
The FlowScale electronics incorporates error chec~ing tunc-
tions which routinely monitor the operation o' both the sensor and transmitter. Errors
detected are coded-and stored in a non-volatile memory. A fault alarm output pro-
vides notification of a fault condition.
Flow conditions are also monitored to ensure that thev are within the installation's in-
tended parameters. Should
the
flow rate fall outside oi a preset flow range, an alarm is
energized. When flow direction is reversed, an alarm is activated.
1.3
Rogrammable Features
The FlowScaie transmitters' oroorammable functions are partitioned into
two
areas:
1)
those that are programmable;ia the front panel push-button key switches, and
'
2)
those that are programmable via internal switches.
1.3.1
Front
Panel
The following areas are programmable from the front panel:
RWrammable
Features
Mass and Time Units: Mass and time units for the flow rate and flow total are pro-
grammable. Available mass units are ounces, pounds, tons, kilograms and metric tons.
Available time units are seconds, minutes and hours.
Scaled Pulse: The
scaled-pllse output feature generates a pulse per unit of mass
measurement at a maximum rate of
10
pulses-per-second. The unit of mass measure-
ment is selected
by the user.
High and Low Alarms: The high and low alarm levels are programmable for mass
flow rale only.
Low flow Cutoff: The amount of "cutoff' applied to the flow rate signal can
be
se-
lected by the user. The use of a low flow cutoff eliminates unwanted low-level system
noise from the rate and total at zero flow.
Fllter Constant: The amount of filtenna amlied to the mass flow-rate signal is pro-
grammable through selection of the filler constant The ab'l'ty to select the filter
constant is part'cularly helplul in noisy or pulsat~ng flow systems.
Frequency Output Parameters (optional): The frequency output generates a fre-
auency Droportional to the mass flow rate. Scaling and sDan parameters are also Pro-
grammable:
Current Output Parameters (optional): The current output is factory programmed
as current and is typically configured as a
4
to
20
mA output The scaling and span
parameters of the current output are programmable from the front panel
Communications
Parameters (optional): All communications parameters are pro-
grammable from the front panel. These include
port
selection, unit identification num-
ber
(ID#), controller ID#, mode selection, baud, and parity.
1.3.2
Internally Programmable Internally programmable functions require that the upper front cover of the FlowScale
Features
unit be removed before these functions can be programmed or changed. This pre-
vents accidental altering and provides security for the internally programmed parame
ters.
The following are internally programmable:
Meter Type and Meter Factor: The METER TYPE switches allow the FlowScale el-
ectronics to be attached to any sensor unit. The METER FACTOR switch is used to
establish the scaling of the system. The METER
TYPE
and METER FACTOR switches
are set at the factory
to
appropriate positions. These switches may be changed
if
nec-
essary for recalibration or use with a different sensor.
Securitv: The SECURE switch selects the securitv mode. When in the securitv mode.
the ~low~cale electronics will not allow changes to key parameters. The key parame
ters are mass units, time units, scale0 pulse selection, high alarm level. low a<arm ev-
el, low flow cutoff, filler constant, all communication parameters, time and date.
Declmal PolntIComma: When the COMMA switch is in the up or decimal position,
all breaks between whole numbers and fractions will be displayed with decimal points.
When the switch is in the down or comma position, all breaks between whole num-
bers and fractions will be displayed with commas.
1.3.3
Error
Recovery Modes
The FlowScale electronics contains extensive diagnostic and self-testing capabilities in
order to ensure
accJrate flow measurement and diagnostics operation. Errors are
stored in a nonvolatile memorv and the
25
most-recent errors are saved together with
the time and date of error oc&rrence. Two modes of recovery from errors ire availa-
ble and can be selected via an internal switch. The manual mode requires manual or
communications port intervention to clear an error. In the auto recovery mode, the
FlowScale
electronics
w~ll attempt to recover on its own
/
