Omega Products DPF718 Installation Manual
Made in China
DPF708, DPF808 Series
Flow Totalizers
CONTENTS
1. MODEL CONFIGURATION ……………...……………............................................................................................................ 3
2. TECHNICAL SPECIFICATION ……………………………………………………………………………………………………......5
3 PARAMETERS AND SETTINGS……………….….……………………………………….…………………………………………7
3.1 PARAMETER LOCK (LOC) AND FIELD PARAMETERS........................................................................................................7
3.2 THE FULL PARAMETER TABLE ...........................................................................................................................................7
4. WIRING AND REAR TERMINALS LAYOUT ………………………………………..……………………………………………. 17
5. DISPLAYS AND OPERATIONS……………………………………..………………………………………………………........... 19
5.1 FRONT PANEL DESCRIPTION …………………………………...…………………………………………………………………19
5.2 DISPLAY AND OPERATION………………………………………………………………………………………………………...20
5.2.1 DISPLAY STATUS SWITCH……………………………………………………………………………………………………….….20
5.2.2 PARAMETER SETTING………………….……………..…………………………………………………………………………….21
5.2.3 MANUALLY RESET THE ACCUMULATED VALUE…………………………………………………………………………….….21
5.2.4 POWER FAILURE MEMORY FOR ACCUMULATED VALUE………………………………………………...…………………..21
5.3 BATCH CONTROL………………………………………………………………………………………………………………..….22
6. CONFIGURATION EXAMPLES…………………………………………..……………………………………………………..……22
7. CALCULATION PRINCIPLE OF THE INSTRUMENT……………………………………………………………………………24
7.1 CALCULATION PROCEDURE OF FLOW COMPENSATION…………………………………………………………………….24
7.2 RELEVANT COMPENSATION FORMULA AND TABLE………………………………………………………………………...25
7.2.1 TEMPERATURE-PRESSURE COMPENSATION FOR COMMON AIR……………………………………………………….25
7.2.2 TEMPERATURE COMPENSATION FOR COMMON LIQUID……………………………………………………….……………25
7.2.3 COMPENSATION FOR SATURATED STEAM AND SUPERHEATED STEAM……………………………………………….25
8. SYMBOL DESCRIPTIONS………………………………………………………………………………………………………….25
1. MODEL CONFIGURATION
Model
DPF718(*)-(***)-(****)-(*****)
DPF728(*)-(***)-(****)-(*****)
DPF738(*)-(***)-(****)-(*****)
DPF748(*)-(***)-(****)-(*****)
DPF818(**)-(***)-(****)-(*****)
DPF828(**)-(***)-(****)-(*****)
DPF838(**)-(***)-(****)-(*****)
DPF848(**)-(***)-(****)-(*****)
* Specify input code from Flow Input Options table below
** Specify input code (For Temperature or Pressure Compensation) from Flow Input Options table below
*** Specify batch control code from Batch Output Options table below
**** Specify alarm code from Alarm Options table below
***** Low voltage power supply option (-LV)
Description
FLOW TOTALIZER 1/4 DIN
FLOW TOTALIZER 1/4 DIN, with Light Bar
FLOW TOTALIZER 1/8 DIN VERT
FLOW TOTALIZER 1/8 DIN HORIZ
FLOW TOTALIZER 1/4 DIN, with Temperature or Pressure compensation
FLOW TOTALIZER 1/4 DIN, with Light Bar, with Temperature or Pressure compensation
FLOW TOTALIZER 1/8 DIN VERT, with Temperature or Pressure compensation
FLOW TOTALIZER 1/8 DIN HORIZ, with Temperature or Pressure compensation
Flow Input Option (*)
Option Type
For frequency signal flow sensor, with12VDC/50mA power supply -F
For 0-5V/1-5V voltage signal flow sensor, with 12VDC/50mA power supply -V
For 4-20mA/0-20mA current signal flow sensor, with 12VDC/50mA power supply -C
Flow Input Options
Flow Input Option (**) (For Temperature or Pressure Compensation)
Option Type (For Temperature or Pressure Compensation) Input Option
Temp. and Pressure Input: Flow Input
Dual input available, suit for two-wire
re-transmitter
Thermocouple, RTD or mV signal input; or
0-5V or 1-5V pressure sensor
For frequency signal flow sensor, with12VDC/50mA
power supply
For 0-5V/1-5V voltage signal flow sensor, with
12VDC/50mA power supply
For 4-20mA/0-20mA current signal flow sensor, with
12VDC/50mA power supply
For frequency signal flow sensor, with12VDC/50mA
power supply
For 0-5V/1-5V voltage signal flow sensor, with
12VDC/50mA power supply
For 4-20mA/0-20mA current signal flow sensor, with
12VDC/50mA power supply
-FC
-VC
-CC
-FT
-VT
-CT
Batch Output Option (***)
Option Type Output
Relay -R1
DC SSR driver -DC1
Alarm Options (****)
Option Type Alarm Output
Relay -R2
DC SSR driver -DC2
Low voltage power supply option (*****)
Option Type
24V AC/DC, 50/60 Hz -LV
100~240VAC, 50/60Hz Blank
2. TECHNICAL SPECIFICATION
Frequency units: Hz
Temperature units:
Pressure units: MPa
Accumulation time:
Fixed at 1 hour for flow accumulation, and the unit can be freely set for batch control.
Momentary flow unit:
Different units can be set, like M3/hour, kg/hour, ton/hour. The decimal point can be freely set.
Accumulation flow unit:
The unit and resolution is the same as momentary flow
℃
Flow input type:
Frequency : 0-3200Hz, the low level signal is 0-1V, the high level signal is 3-24V Voltage
Voltage: 1-5V, 0-5V
Current and two wire
re-transmitter
4-20mA, 0-20mA, 0-10mA
Temperature input type:
Thermocouple
RTD
Voltage 0-20mV, 20-100mV, 0-100mV, 0-1V, 0.2-1V
Current 4-20mA, 0-20Ma
Two-wire re-transmitter Directly connect to two wire re-transmitter.
K (0-999℃), E (0-800℃), J (0-999℃)
Pt100 (-200 ~ +600℃)
Pressure input type:
Voltage : 1-5V, 0-5V
Current 4-20mA, 4-20mA
Two-wire re-transmitter Directly connect to two wire re-transmitter.
Measurement accuracy:
±0.2% FS, for temperature 、pressure 、frequency 、momentary flow without temperature- pressure compensation.
Temperature drift:
≤0.01%FS /℃ (typical value is 50ppm/℃)
Momentary flow retransmission accuracy:
14 bit output resolution and 0.2%FS
Temperature/pressure compensation method (For DPF818,DPF828,DPF838,DPF848 only):
General gas: Temperature- pressure compensation (Calculate by equation for ideal gases)
Saturated steam:
Saturated steam: Pressure compensation (Refer to table , absolute pressure range: 0.1-3.2Mpa)
Superheated steam:
General liquid: Only use temperature compensation, PA is compensation factor.
Temperature compensation (Refer to table , temperature range:100℃-276℃)
Temperature- pressure compensation (Refer to table , temperature range: 150℃-590℃ pressure
range: 0.1-22Mpa)
Calculation accuracy for temperature- pressure compensation:
The calculation error is less than 0.3% FS, and after compensation, the overall error is less than 0.5% FS.
Accumulation accuracy:
The error is less than 0.01%FS (just the frequency error produced by crystal oscillator).
Electromagnetic compatibility (EMC) :
±4KV/5KHz according to IEC61000-4-4; 4KV according to IEC61000-4-5
Isolation withstanding voltage:
Between power, relay contact or signal terminal ≥2300VDC; between isolated electroweak terminals ≥600VDC
Power supply :
100 ～ 240VAC, -15%, +10% / 50-60Hz; 120 ～ 240VDC; or 24VDC/AC, 15%, +10%.
Power consumption:
≤5W
Operating Ambient :
Temperature -10～60℃; Humidity ≤90%RH
3. PARAMETERS AND SETTINGS
3.1 Parameter Lock (Loc) and Field Parameters
In order to protect important parameters from being modified by mistake, but also offer enough flexibility for field control, parameter
lock (Loc) and field parameters are introduced.
The parameters need to be displayed and modified in the work field are called Field Parameters. The set of field parameters is a
subset of the full parameter set, and can be freely chosen by the user . User can select up to 8 filed parameters through parameter
EP1～EP8.
Loc can authorize different security privilege. For details, please read the description of parameter “Loc” in the full parameter table.
Setting Loc=808, and then pressing to confirm, can enter the full parameter table and modify all parameters.
3.2 The Full Parameter Table
Code Name Description
FHIA
FLoA
FdF
CHIA
CLoA
High limit alarm for
momentary flow
Low limit alarm for
momentary flow
Alarm hysteresis for
momentary flow
High limit alarm for
temperature
Low limit alarm for
temperature
Alarm is triggered when momentary flow >FHIA; alarm is released when momentary flow
<FHIAF-FdF; Alarm action output can be defined by parameter ALP.
Alarm triggered when momentary flow<FLoA; alarm released when momentary
flow>FLoA+FdF
Avoid frequent alarm on-off action because of the fluctuation of PV
Alarm is triggered when temperature >CHIA; alarm is released when temperature
<CHIAF-1.0℃;
Alarm triggered when temperature <CLoA; alarm released when temperature >CLoA+1.0
℃
Setting
Range
0 ～9999
units
0 ～ 9999
units
-199.9 ～
999.9℃
PHIA
PLoA
ALP
High limit alarm for
pressure
Low limit alarm for
pressure
Alarm output allocation
Alarm is triggered when pressure >PHIA; alarm is released when pressure
<PHIAF-0.010MPa;
Alarm triggered when pressure <PLoA; alarm released when pressure > PLoA+0.010MPa
ALP defines the alarm output allocation. Its value is calculated as below:
ALP=Ax1+Bx2+Cx4+Dx8+Ex16+Fx32
A=0, FHIA alarm triggers AL1 relay; A=1, FHIA triggers AL2.
B=0, FLoA alarm triggers AL1 relay; B=1, FLoA triggers AL2.
C=0, CHIA alarm triggers AL1 relay; C=1, CHIA triggers AL2.
D=0, CLoA alarm triggers AL1 relay; D=1, CLoA triggers AL2.
E=0, PHIA alarm triggers AL1 relay; E=1, PHIA triggers AL2.
F=0, PLoA alarm triggers AL1 relay; F=1, PLoA triggers AL2.
1.999 ～
30.00MPa
0～63
Act
Relay action time for
batch control
Act=0, batch control function is disabled, and the instrument is only used for flow
accumulation.
Act=1-254, when the flow accumulation for batch control gets to SV+FSb (setpoint+offset),
OP1 relay (the relay installed in OUTP socket) will be triggered. Parameter “Act”
determines the latching time of the relay, the unit of which is 0.48s. After the latching time
passed, OP1 relay will be released, the accumulator for batch control will be reset to zero,
and the accumulation start again.
You can set parameter FSb to make it equal to the flow accumulation value during the relay
latching time, this will make the actual flow accumulation equal to setpoint value SV.
0～255(x
0.48s)
When Act=255, the relay latching time is infinitely long, then after the action of batch
control relay OP1 is triggered, it will not terminate or reset automatically. At this time, you
can terminate or reset the batch control action, i.e., release the OP1 relay and start the
next batch control, by pressing key or triggering an external discrete input signal.
Loading...