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Model M1713B Maxiflex 4PI Module0 pages
Maxiflex 4PI Pulse Integrity Module
Model M1713B 4 Channel Meter Pulse Integrity Module.
DATASHEET
FEATURES
•
4 dual-channel or 8 independent meter pulse inputs
•
Provides ISO 6551 Level A pulse security.
•
Detects and corrects both missing and added pulses
•
Totalises corrected meter pulses from each channel
•
Outputs a secondary single pulse stream from the selected
input.
•
Accepts a wide range of turbine meter output signals
•
Fits in any MAXIFLEX base I/O slot
•
1500V rms Isolation to logic.
The primary function of the Maxiflex M1713B 4PI
Module is to monitor dual inputs from up to four oil/gas
turbine flow meters and to detect and correct errors in
the input pulse streams, and totalise the pulses.
The module meets the Level A security requirements of
specification ISO 6551 “Petroleum liquids and gases Fidelity and security of dynamic measurement – Cabled
transmission of electric and/or electronic pulsed data.”
ISO6551 recommends specific techniques to be
employed in the quantitative measurement of petroleum
products when royalty, fiscal and custody transfer
accounting is required. Five levels of security are
specified by this standard, with level A being the most
stringent. When configured for Level A security, The
Maxiflex M1713B 4PI module will continuously verify and
correct pulse counts received from the flow meters. This
module uses sophisticated correlation techniques in real
time to compare the pulse streams and detect missing or
added pulses, and accumulates all errors detected and
corrected for reporting to the Maxiflex CPU.
This module also provides a pulse output signal
selectable from any of the nput pulse streams for use
i
with the Maxiflex M1714A Meter Prover module.
A wide range of turbine meter inputs can be
accommodated, with any phase.
When used with 90 degree phase shifted dual pulse
streams, forward and reverse flow is totalised
separately.
SPECIFICATIONS
Inputs
Number
Input Pulse Types
8 Pulse Inputs
(configurable as 4 dual pulse inputs
or 8 independent pulse inputs)
Three types of electrical pulse signal
from the flow meter (including preamplifier) are catered for:
Single-ended Voltage: 0 to 12V
Differential Voltage: -6 to +6V
Single-ended current: 4-16mA
Electrical Specifications
6Vdc minimum at 5mA
100 microseconds minimum
Field Termination
Type
Screw Terminal Wire Size
Screw clamp Plug-in Terminal
Blocks
2.0mm2 maximum
For manageable wiring to the module, 0.5
2
mm is recommended with 2mm overall
outside diameter
Environmental
Operating Temperature
3.5V minimum
2.5V maximum
5mA minimum
Input “OFF” current
Maximum Input Voltage
Input Indication
(Green LED per channel)
0.3mA maximum
30Vdc
LED ON when input is ON
LED OFF when input is OFF
Input Pulse Frequency
Minimum Pulse Width
0 - 4kHz
100 microseconds
-25°C to +60°C (-13°F to +140°F)
Storage Temperature
Input “ON” voltage
Input “OFF” voltage
Input “ON” current
-40°C to +70°C (-40°F to +158°F)
Humidity
Protection
95% max. at 40°C (104°F) non-condensing.
Electronics conformally coated
Logic Power Consumption
From Logic Power Supply
60mA from 5Vdc max.
Mass
Excluding Packaging
ISO 6551 Levels A and B
IP 252/76, Part XIII, Level A and B
API Chapter 5.5 Level A and B
320g (11.3oz)
Including Packaging
Pulse Counting Security
Standards Compliance
Output Voltage
Pulse Width
410g (14.5oz)
Ordering Information
Description
Maxiflex 4PI Module
Order Code
M1713B
Output
Type
Sourced voltage output pulses
- 1 -Copyright Omniflex ♦ Subject to change without notice
Datasheet DSM1713BR03 sheet 1 of 2
http://www.omniflex.com
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