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
Table of contents
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