Contrec 414L Reference manual

414L-M-V3
BATCH CONTROLLER
MODEL 414L
September 2013

414L-M-V3

414L-M-V3
CONTENTS
1. Introduction 3
1.1 Model Number Designation 5
2. Specification 6
3. Operation 9
3.1 Front Panel Operation 11
3.2 Batch Operations 15
3.2.1 Control Relay Outputs 17
3.2.2 Signal Timeout 18
3.2.3 End of Batch 19
3.2.4 Auto Restart 20
3.2.5 Automatic Overrun Compensation 21
3.3 Single and Quadrature Inputs 22
3.4 Calculation of Rate and Total 23
3.4.1 Frequency Input 23
3.4.2 Analog Input 24
3.4.3 Filtering 25
3.5 Total Conversion 27
3.6 Non-Linearity Correction 28
3.7 The Output Pulse and Flow Alarm 30
4. Temperature Compensation 32
4.1 Temperature Input (RTD or 4-20mA) 32
4.2 Volume Correction for General Liquids 34
4.3 Density Correction for General Liquids 36
4.4 Compensation for Petroleum Liquids 38
4.5 Compensation for Liquefied Petroleum Gas (LPG) 40
4.6 Density Correction 41

414L-M-V3
5. Options 42
5.1 The RS232/422/485 Interface Option 42
5.1.1 Hardware 42
5.1.2 Multipoint Communication 43
5.1.3 Communication Protocol 45
6. Calibration 47
6.1 Programming the Setup Parameters
49
6.2 Entering the Batch Parameters 55
6.3 Programming Options 57
6.4 Checking the Input Signal 59
7. Input Circuits 61
7.1 Flow Inputs 61
7.1.1 Frequency Inputs 61
7.1.2 Analog Flow Inputs 67
7.2 Temperature or Density Input 68
7.3 Remote RUN and STOP Switches 70
8. Installation 71
8.1 General 71
8.2 Wiring Designations for the Model 414L 73
8.3 Ex 410 Enclosure Dimensons 74
9. Trouble Shooting 75
9.1 Error Codes 78
Index 79

414L-M-V3
1. INTRODUCTION
The Model 414L Batch Controller uses temperature correction to calculate
the volumetric flow for liquids at standard reference conditions and to
batch liquids using one or two stage valve control.
Mass flow can also be calculated from the temperature input and the
volumetric flow input. Therefore, the Model 414L Batch Controller will
enable relatively low cost mass flow measurement and control using positive
displacement or turbine flowmeters and an RTD.
The Model 414L is ideally suited to custody transfer applications and includes
the API/ASTM equations covering general petroleum products and LPG.
Quadrature signal inputs are provided, where it is required to ensure the
integrity of the flow signal, or to measure bi-directional flow.
Two versions of the instrument are available; the Model 414LR with direct
RTD input and the Model 414LA with a 4-20mA temperature input. Both
have two relay outputs capable of handling up to 5 Amps.
The Model 414L offers the following temperature compensation:
1. Density Correction
A five point temperature-density curve can be programmed and
the mass flow calculated.
2. Volume Correction for General Liquids
The thermal coefficient of expansion of the liquid can be
programmed and a reference temperature defined for volume
correction to that reference.
3. Petroleums
Volumetric correction to 15°C or 60°F for Crude, Oils, Jet Fuel and
Gasoline as determined by API/ASTM Table 54A, 54B and 54D for
metric units and Tables 24A, 24B and 24D for US units.
Introduction 3

414L-M-V3
4. Liquid Petroleum Gas
Volumetric correction to 15°C or 60°C for LPG as determined by
Tables 54 and 34 of the API/ASTM standards.
In addition, the Model 414LA will accept a 4-20mA signal from a Density
Meter and use this input to calculate mass flow.
As well as pulse inputs, the Model 414LA will also accept a 4-20mA from
volumetric flowmeters such as vortex, magnetic or turbine flowmeters
with a frequency to current converter on the output. The instrument
will also operate with differential pressure devices used to measure flow,
but the compensation is limited to density correction using a temperature
input, or to a direct input from a density meter. Volume correction is
not possible with a differential pressure device.
This instrument conforms to the EMC-Directive of the Council of
European Communities 89/336/EEC and the following standards:
Generic Emission Standard EN 50081-1 Residential, Commercial & Light
Industry Environment.
Generic Emission Standard EN 50081-2 Industrial Environment.
Generic Immunity Standard EN 50082-1 Residential, Commercial & Light
Industry Environment.
Generic Immunity Standard EN 50082-2 Industrial Environment.
In order to comply with these standards, the wiring instructions in Section
7.1 must be followed.
4 Introduction

414L-M-V3
1.1 MODEL NUMBER DESIGNATION
The Model number of an instrument describes which input and output
options are installed and the AC mains voltage rating.
Model 414 L R. 1 0 E B C
B for Backlight
E for 220/240 VAC
A for 110/120 VAC
D for DC Power Only
Temperature Options
R for RTD input 0 for no option
A for 4-20mA 2 for RS232/422/485
Mounting
1 for panel
mounting
2 for field mounting
3 for explosionproof
The Model Number of the instrument is displayed on first entering
the Calibration Mode (see Section 6).
Introduction 5
C for Conformal Coating

414L-M-V3
2. SPECIFICATION
General
Display: 6 digit LCD. 0.7" (17.8mm) high digits.
Display Update Rate: 0.25 seconds.
Transducer Supply: 8-24VDC field adjustable.
50mA maximum.
Power Requirements: 11.5 to 28.5 volts DC.
130mA typical current (no options).
AC Mains: Set internally to 95 - 135 VAC or
190 - 260 VAC.
Operating Temperature: 0 to 55°C standard.
Dimensions: 5.7" (144mm) wide x 2.8" (72mm) high x
7.0" (178mm) deep.
Cutout:5.5" (139mm) wide x 2.6" (67mm) high.
Frequency Input
Frequency Range: Minimum: 0.25Hz on Rate.
0Hz on Total.
Maximum: 10KHz for a single input.
2.5KHz for a quadrature
input.
Input Circuits: Will accept most sine logic and proximity
switch inputs (see section 7.1.1).
Scaling Range: 0.1000 to 50,000.
RTD Input (Model 414LR)
Temperature Measurement
Range: -100°C (-148°F) to 200°C (392°F).
Measurement Accuracy: 0.1°C
RTD Type: Platinum PT100.
Linearity Correction: Internally Compensated.
6 Specification

414L-M-V3
4-20mA Inputs
Measured: Flow, temperature or density.
Input Impedance: 250 ohms.
Measurement Accuracy: 0.05%
Isolation: Inputs are not isolated.
Relay Outputs
Maximum Switching Power: 1250VA.
Maximum Switching Voltage: 250VAC, 30VDC.
Maximum Switching Current: 5 Amps.
Pulse Output
Pulse Width: 10mSec (negative going pulse).
Maximum Duty Cycle: 49 pulses per second.
Scaling: The pulse output is scaled and outputs
one pulse each time the accumulated
total increments.
Non-linearity
Number of Points: 10 correction points maximum.
Correction between Points: Linear interpolation used.
Specification 7

414L-M-V3
Temperature Correction
Density Correction for
General Liquids: A five point temperature density table can
be programmed.
Temperature Range: -273°C to 200°C.
(-459°F to 392°F).
LPG: To API/ASTM Tables 34 and 54
Accuracy: 0.04% for metric.
0.12% for US.
Temperature Range: -45°C to 60°C.
(-49°F to 140°F).
Volume Correction for
Petroleums: Correction to API/ASTM Tables as follows;
Crude: Tables 24A and 54A.
Gas, Jet, Oils: Tables 24B and 54B.
Lube Oil: Tables 24D and 54D.
Accuracy: 0.075%
Temperature Range: -100°C to 200°C.
(-148°F to 392°F).
Volume Correction for
General Liquids: Correction to any base temperature using a
constant co-efficient of volume expansion.
Accuracy: 0.05%
Temperature Range: -273°C to 200°C.
(-459°F to 392°F).
Density Meter Input A density meter with 4-20mA output can
be connected, in place of a temperature
sensor, to provide a mass flow reading.
(Model 414LA only.)
8 Specification

414L-M-V3
3. OPERATION
The Model 414L uses a low power CMOS microprocessor to perform all
control functions and calculations.
The instrument is fully programmable with all operating parameters
and calculation constants user programmable. (See Section 6 entitled
"Calibration" for information on programming.) All parameters and
constants are stored in a non-volatile memory which retains data
without battery backup for a minimum of 10 years.
Two versions of the instrument are available and have the following features:
Model 414LR
Temperature Input directly from a PT100 RTD.
Frequency Input from a single flowmeter with a single or dual
frequency output.
The dual frequency unit (termed "Quadrature") is often required
in custody transfer applications to ensure the integrity of the
flow signal and to measure bi-directional flow.
Operation 9
RS232/4 2 2
Op t i o n R S 2 3 2 / 4 2 2
Output
E O B
Co n t r ol
Relay Outputs (2)
Pul s e
Output
F l o w A l a r m
DC Input Power
DC Power Output to Sensors
DC P o we r Gr oun d
110/2 2 0 V
A C M a i ns
R T D
(PT100)
Pulse Input
Channel 2
Si g na l
C o m m o n
Pulse Input
Channel 1
Rel ays
Model 414LR

414L-M-V3
Model 414L
Temperature Input from a temperature transmitter (4-20mA).
Either a Frequency Input (Single or Quadrature) or Analog
(4-20mA) from a single flowmeter.
On the Model 414L a DIL switch on the rear panel enables the frequency
input circuit to be set to interface with a wide range of flowmeters,
including turbine flowmeters and flowmeters with Namur type sensors.
10 Operation
RS232/4 2 2
Op t i o n
Rel ays
RS232/4 2 2
Output
P C / E O B
Co n t r ol
Relay Outputs (2)
Pul s e
Output
F l o w A l a r m
DC Input Power
DC P o we r Gr oun d
DC Power Output to Sensors
110/2 2 0 V
A C M a i ns
4 - 2 0 m A
4 - 2 0 m A
Temperature
Input
A n a l o g
Flow Inpu t
Pulse Input
Channel 2
Sig n a l
C o m m o n
Pulse Input
Channel 1
Model 414LA

414L-M-V3
3.1 FRONT PANEL OPERATION
The four key operation makes the operation of the Batch Controller very easy.
SETTING THE BATCH QUANTITY
The Batch quantity is programmed as follows:
Switch Action Display Comments
Press BATCH SET Batch "Batch" is displayed for one second
followed by the batch quantity last
entered. The Batch Set LED lights.
"1"2345 The most significant digit flashes
indicating that it can be changed.
Press "2"2345 Pressing the DISPLAY key will
increment the digit. The up arrow on
the Display key indicates to increment
digit.
Press 2 "2"345 Pressing the RUN key will change digit
and enable the next digit to be
incremented. The right arrow on
the
RUN key indicates to change digit.
Press BATCH SET Set Once the desired number is entered,
press the BATCH SET key to return to
the Run mode. The Batch Set LED will
extinguish.
Once programmed, the Batch quantity will be retained in the non-
volatile memory and will not alter until changed by the user.
Operation 11

414L-M-V3
The Batch quantity can only be set while the instrument is in non-
operational state such as when the batch is complete, or if the batch
process has been interrupted. However, the Batch key can be pressed
while in the run state and the Batch quantity checked. All digits will flash
to signal the quantity cannot be changed.
STARTING A BATCH
To start the process the RUN key is pressed. The Run LED will light and the
instrument will begin to totalise from zero or, if programmed for the count
down mode, the display will decrement from the batch quantity.
The batcher has two output relays and these are energised and de-
energised as described in section 3.2.
STOPPING
The process can be stopped at any time by pressing the STOP switch. Once
the process has been interrupted in this way it can be continued by pressing
the RUN switch or the process can be aborted and the instrument reset by
pressing the STOP switch a second time.
When the process is interrupted, the STOP LED will flash to prompt
the operator to either restart or abort the batch.
RESETTING
The instrument can be programmed to reset in one of two ways.
ŸAt the end of a batch, the STOP key must be pressed to reset the
Batch Total. If the instrument is programmed to count down, the
Batch Total will then revert to the preset quantity. If it is
programmed to count up, the Batch Total will clear to zero.
Ÿ If Auto Reset is programmed, the Batch Total will automatically
reset when the RUN key is pressed and then commence the next
batch.
12 Operation

414L-M-V3
BATCHING ON GROSS OR NET TOTAL (MASS)
The Batch Controller can be programmed to batch on either the Gross
Total (uncompensated) or the compensated Net Total or Mass Total.
Care should be taken when batching in Net or Mass units, so that a
vessel cannot be accidentally overfilled.
Note that the Gross Total is the total without temperature compensation
and the Net Total is the total after temperature compensation. Both totals
are reset on each batch.
DISPLAYED INFORMATION
The display will normally show the Batch Total, which is the total count for
the current batch. The Batch Total can be either the Gross, Net or Mass
depending on which value is programmed to control the batch.
The DISPLAY key can be used to display the following additional information:
Rate
On the first press of the DISPLAY key, the display shows RATE for
one second followed by the net flowrate (or MASS Flowrate).
Gross or Net Total
Since the batch can be controlled via the Gross or Net Total
(or MASS), the next value displayed on pressing the DISPLAY
key will depend on which value is used. If the batch is
controlled via the Gross Total, the Net Total (or MASS Total)
will be displayed. If the batch is controlled via the Net Total
(or MASS Total) the Gross Total will be displayed.
Operation 13

414L-M-V3
Accumulated Total
On the next press of the DISPLAY key, the display shows ACC for one
second followed by the actual total. The Accumulated Total is
temperature compensated and cannot be reset during normal
operation.
Temperature
If temperature compensation is selected, the next press of
the DISPLAY key will show the product temperature as:
xxx F or xxx C
If the instrument is programmed for a Density Meter input, the
density (and not temperature) will be displayed. The displays will
read "DNS" for one second followed by the actual density value.
If the DISPLAY key is again pressed, the display will revert to the
Batch Total display. In any display function, if the DISPLAY key has
not been pressed for 5 seconds, the display will automatically go
back to the Batch Total display.
LIMIT ON BATCH SIZE
To prevent accidental entry of large batch quantities, a maximum batch limit
can be programmed during calibration. The operator is then prevented from
entering a batch quantity which exceeds this value.
14 Operation

414L-M-V3
3.2 BATCH OPERATIONS
The Batch Control functions can be programmed, during Calibration, to
operate in one of two ways.
1. At the end of the batch, the STOP key must be pressed to reset
the Batch Total. (This must be done before another batch can
be started.)
Operation 15
Re l ay 1
Re l ay 2
E n d o f
B a t c h
S t a r t T i m e P r e s t o p
Q u a n t i t y
E n d o f B a t c h
R u n S t o p R u n
P A U S E B a t c h
Q u a n t i t y
R e a c h e d R es et Ru n
C o u n t D o w n
C o u n t U p

414L-M-V3
2. If Automatic Reset is programmed, a new batch is commenced
each time the RUN key is pressed.
The Batch Controller can also be programmed, during Calibration, to
either count up from zero on each batch, or to count down from the
preset batch quantity.
16 Operation
Re l ay 1
Re l ay 2
E n d o f
B a t c h
S t a r t T i m e P r e s t o p
Q u a n t i t y
E n d o f B a t c h
R u n S t o p R u n
P A U S E B a t c h
Q u a n t i t y
Reached
C o u n t D o w n
C o u n t U p
R u n
Aut o Res tart
T i m e

414L-M-V3
3.2.1 Control Relay Outputs
The two output relays can be set up to a control single valve or a dual valve
with slow stop and/or slow start. Alternatively, the second relay can be used
to control a pump.
The relay operation is shown on the previous two pages.
A time delay between the Start and the time when relay 2 energises can
be programmed to provide a soft startup. The delay can range from 0
(no delay) to 79 minutes and 59 seconds.
A Prestop quantity (ie. the quantity to the end of the batch) can also
be programmed to provide a slowdown of flow at the end of the batch,
thereby enabling precise quantities to be batched.
The process can be stopped at any time by pressing the STOP key, whereby
both relays will immediately de-energise. The process can then be aborted
and the batcher reset by pressing the STOP key again, or the process
continued by pressing the RUN key.
If the process is continued and the instrument was previously in the slow
start or main control phases (ie. not the prestop phase), the timer will be
reset and a slow start will occur with a full time delay to ensure a correct
start up. The totals will not be reset and the batch quantity will remain
unchanged.
Operation 17

414L-M-V3
3.2.2 Signal Timeout
The Signal Timeout period defines a time interval which is used to detect if
the flow has stopped. If there is no signal input for a time greater than the
Signal Timeout period the flow is deemed to have stopped. A Signal
Timeout period has two functions:
ŸTo detect the loss of signal midway through a batch when the
relays are energised. In this case, the Batcher will enter a Flow
Alarm condition and de-energise the relays.
ŸAfter the preset batch quantity has been reached and the
relays de-energised, some overrun of flow may occur due to
slow valve closure, etc. In this case, the Signal Timeout is
used to determine when the flow has ceased and thereby
accurately determine the amount of overrun.
It is recommended that Signal Timeout periods are kept fairly short, but
long enough such that the period is significantly longer than the time
period between successive input pulses from the flowmeter at the
minimum flowrate.
The instrument enables the user to program a time interval of up to 99
seconds to detect an absence of signal input. If the Signal Timeout is set to 0,
this function is disabled.
Flow Alarm
If a Signal Timeout is set at greater than zero and loss of signal is
detected midway through a batch, a Flow Alarm signal is output on
terminal 7. In ddition, both relays are de-energised. The Flow Alarm
output and condition is maintained until acknowledged by pressing the
STOP switch. The alarm condition is also signalled to the operator by the
flashing STOP LED. Once acknowledged, the process can then be reset via
the STOP switch or continued by pressing the RUN key.
18 Operation