Model 2000 Flow Computer Instruction Manual
2.0 GENERAL DESCRIPTION
Model 2000 issue 21 Page No
3
l) Station Controller. stn
Device to calculate Station Flow values from up to 5 individual flow computers and to distribute gas
data information to those flow computers.
m) Wet Gas Venturi 1 Stream WGV1
Steam flow computer 1 measurement stream using Venturi measurement as the primary flow
measurement device and Pressure, Temperature and Compressibility for flow correction. This flow
computer is for Wet Gas measurement only.
n) Wet Gas Venturi type 2 flow line Stream WGV21
Flow line Steam flow computer measurement stream using Venturi measurement as the primary flow
measurement device Mass flow transmitter incorporating measurements for Differential Pressure,
Pressure, Temperature and Compressibility for flow correction. This flow computer is for Wet Gas
measurement only.
o) Liquid Coriolis Meter 1 Stream or 2 Stream. lc1, lc2
Liquid flow computer 1 or 2 measurement streams using Micro Motion type Coriolis Meter
measurement as the primary flow measurement device and Density measurement device. Optional
Pressure and Temperature measurement for flow correction.
The basic type selected must be configured into the M2000 using the set-up software, this will then determine the circuit
boards required and inputs and outputs to be configured.
The Model 2000 will calculate the volume of gas or liquids using pre-set or active gas data and active input signals for
pressure and temperature and either inputs from pulse generating turbine meters, a high frequency pulse input used for flow
calculation and a low (or reference) frequency input from the index or from an Instromet type Ultrasonic gas meter or from
the differential pressure measurement across an orifice plate. The function and correction of all types of available input is
described in section 2.3 of this manual.
The flows calculated are displayed on the LCD display as a 12 digit number (8 digits- decimal- 4 digits) with the scaling
factor, units and symbol.
e.g. +Vn1 = 12345678.1234 X 100 m3
The scaling factor (symbol twf) is entered via the keyboard. The Model 2000 can be selected to total the flow on a separate
counter when an alarm condition occurs.
2.1.2. FLOW COMPUTER OPERATING MODES
The security, set-up and operational modes of the Model 2000 is initiated by the setting of mode switches located under an
access hole on the side of the Model 2000 the access hole is normally covered by a plastic cover and can also be sealed
using a self adhesive security label (See figure 16 for details) .
The designation and function of the mode switches is as follows:-
Normal RUN mode:-
Switch No. ON OFF
1
Security 1 Off Security 1 On
2
Security 2 Off Security 2 On
3
Run Mode
4
Backup Battery On Backup Battery Off
Programming Boot mode:-
Switch No. ON OFF
1
Security 1 Off Security 1 On
2
Irda Infra Red or Front Panel USB
Connector
Rear Connector Skt 1
3
Boot Mode
4
Backup Battery On Backup Battery Off
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