Fluid Components International MT91 Delta R Parameters

APPENDIX D - MT91 DELTA R PARAMETERS FLUID COMPONENTS INTL

Appedix D. MT91 Delta R Parameters

For each instrument there are “MT91 Delta R Parameters” sheets and a 4-20mA look up table inserted in the rear
page protector. Appendix D explains the codes found on the Delta R Parameters sheets. A sample of both the Delta
R Parameter sheet and the 4-20mA look up table follow the explanations.

Above each column is a menu level code. When verifying parameters, access the menu level and then scroll down
through the menu until the value in question appears on the screen. For example, to view the parameter “dRmin 1”,
press HOME, 5, 2, 3, and 1. (VerifyÞ Verify CalÞ FlowÞ Limits). Scroll down by pressing ENTR until “dRmin 1”
appears on the screen.

The instrument uses internal units of Standard Feet per Second and degrees Fahrenheit. Therefore, all values on this
sheet are in Standard Feet per Second. Refer to "Verify Standard vs. Actual Conditions" in Chapter 5 to convert
actual readings to standard readings.

In menu levels 5.1.1 and 5.1.3 active sensing points are designated by hexadecimal notation. Use the following
diagram and table to decipher which sensing points are active. For example, the number 0003 in hexadecimal
notation means sensing points 1 and 2 are active.

This hexidecimal

notation is found on the

Delta R Parameter Sheet

and on the Display.

This code indicates that

sensing points

1,5,6,7,8,10,11, and 16

are active.

0=Off
1=On

Group 1
Group 2
Group 3
Group 4

represents sensing points 1,2,3, and 4.
represents sensing points 5,6,7,and 8.
represents sensing points 9,10,11, and 12.
represents sensing points 13,14,15, and 16.

Sensing
Point 16

1000

Group 4

8 6 F 1

0110 1111

Group 3 Group 2

Explanation of Parameters and Code

5.1.1 Verify Setup Flow

Flow Units Customer Specified Unit
Flow Heads Hexadecimal Notation
Area Unit Customer Specified Unit
Area Area of Customer Pipe or Duct
TC Ena Temperature Compensation Enabled
Corr Ena Correction Enabled
Offset Ena Offset Enabled
Filter Filter Strength (See Chapter 3)
Density Standard Density of Customer Media in LBM per

cubic feet.

Flow Fac Flow Factor

0001

Group 1

Sensing

Point 1

Group

Code
'0000 0 1000 8
'0001 1 1001 9
'0010 2 1010 A

Hex#Group

Code

Hex

#

'0011 3 1011 B
'0100 4 1100 C
'0101 5 1101 D

C00298-1

'0110 6 1110 E
'0111 7 1111 F

5.1.3 Verify Setup Outputs

[1] = Channel 1 [2] = Channel 2

PortUnit[1] 0 = Flow 1 = Temperature
PortUnit[2] 0 = Flow 1 = Temperature
Out Head[1] Hexadecimal Notation
Out Head[2] Hexadecimal Notation
Zero[1] Zero output setting at either zero (0) or minimum

flow. (e.g. 4mA represents either 0 or minimum

flow)
Zero[2]
Span[1] High point of output signal.(e.g. 20mA represents

high point)
Span[2]

5.1.2 Verify Setup Temperature

Temp Type Units used during calibration.
Temp Heads Hexadecimal Notation

Doc. No. 003185 Rev. B D - 1

5.1.4 Verify Setup Communication

Comm Mode0 = EIA-232C 1 = EIA-422 2 = EIA-485
Comm Rate 0 = 4800 1 = 9600 2 = 19.2K
Comm Prot 0 = Protocol 1 1 = Protocol 2 2 = Protocol 3
485 Addr

Model MT91 Multipoint Flowmeter

FLUID COMPONENTS INTL APPENDIX D - MT91 DELTA R PARAMETERS

5.2.1 Verify Cal Inputs

URRG1 Unipolar Reference R Gain Channel 1
URRG2 Channel 2
URRO1 Unipolar Reference R Offset Channel 1
URRO2 Channel 2
UDRG1 Unipolar Delta R Gain Channel 1
UDRG2 Channel 2
UDRO1 Unipolar Delta R Offset Channel 1
UDRO2 Channel 2
BRRG1 Bipolar Reference R Gain Channel 1
BRRG2 Channel 2
BRRO1 Bipolar Reference R Offset Channel 1
BRRO2 Channel 2
BDRG1 Bipolar Delta R Gain Channel 1
BDRG2 Channel 2
BDRO1 Bipolar Delta R Offset Channel 1
BDRO2 Channel 2
RxAdj1 Reference Adjust Output Board 1

(sensing points 1 through 8)

RxAdj2 Reference Adjust Output Board 2

(sensing points 9 through 16)
HtAdj1 Heater Adjust Sensing Point 1
HtAdj2 Sensing Point 2
HtAdj3 Sensing Point 3
HtAdj4 Sensing Point 4
HtAdj5 Sensing Point 5
HtAdj6 Sensing Point 6
HtAdj7 Sensing Point 7
HtAdj8 Sensing Point 8
HtAdj9 Sensing Point 9
HtAdj10 Sensing Point 10
HtAdj11 Sensing Point 11
HtAdj12 Sensing Point 12
HtAdj13 Sensing Point 13
HtAdj14 Sensing Point 14
HtAdj15 Sensing Point 15
HtAdj16 Sensing Point 16

5.2.2 Verify Cal Outputs

Zero[1] A to D Values
Zero[2] A to D Values
Span[1] A to D Values
Span[2] A to D Values
Slope[1] A to D Values
Slope[2] A to D Values
Off[1] A to D Values
Off[2] A to D Values
CorrF[1] Correction Factor 1
CorrF[2] Correction Factor 2
CorrF[3] Correction Factor 3
CorrF[4] Correction Factor 4

5.2.3.1 Verify Cal Flow Limits

FlowMin Customer specified and factory calibrated value

for minimum flow.

FlowMax Customer specified and factory calibrated value

for maximum flow.

TempMin Customer specified and factory calibrated value

for minimum temperature.
TempMax Customer specified and factory calibrated value
RRmin Reference R minimum Calibration Value
RRmax Reference R maximum Calibration Value
dRMin 1 Delta R minimum Calibration Value

Sensing Point 1
dRMin 2 Sensing Point 2
dRMin 3 Sensing Point 3
dRMin 4 Sensing Point 4
dRMin 5 Sensing Point 5
dRMin 6 Sensing Point 6
dRMin 7 Sensing Point 7
dRMin 8 Sensing Point 8
dRMin 9 Sensing Point 9
dRMin 10 Sensing Point 10
dRMin 11 Sensing Point 11
dRMin 12 Sensing Point 12
dRMin 13 Sensing Point 13
dRMin 14 Sensing Point 14
dRMin 15 Sensing Point 15
dRMin 16 Sensing Point 16
drMax 1 Delta R maximum Calibration Value

Sensing Point 1
drMax 2 Sensing Point 2
drMax 3 Sensing Point 3
drMax 4 Sensing Point 4
drMax 5 Sensing Point 5
drMax 6 Sensing Point 6
drMax 7 Sensing Point 7
drMax 8 Sensing Point 8
drMax 9 Sensing Point 9
drMax 10 Sensing Point 10
drMax 11 Sensing Point 11
drMax 12 Sensing Point 12
drMax 13 Sensing Point 13
drMax 14 Sensing Point 14
drMax 15 Sensing Point 15
drMax 16 Sensing Point 16

Model MT91 Multipoint Flowmeter D - 2 Doc. No. 003185 Rev. B

APPENDIX D - MT91 DELTA R PARAMETERS FLUID COMPONENTS INTL

5.2.3.2 Verify Cal Flow Coefficients

H01C1 Sensing Point 1 Coefficient 1
H01C2 Coefficient 2
H01C3 Coefficient 3
H01C4 Coefficient 4
H01C5 Coefficient 5
H02C1 Sensing Point 2 Coefficient 1
H02C2 Coefficient 2
H02C3 Coefficient 3
H02C4 Coefficient 4
H02C5 Coefficient 5
H03C1 Sensing Point 3 Coefficient 1
H03C2 Coefficient 2
H03C3 Coefficient 3
H03C4 Coefficient 4
H03C5 Coefficient 5
H04C1 Sensing Point 4 Coefficient 1
H04C2 Coefficient 2
H04C3 Coefficient 3
H04C4 Coefficient 4
H04C5 Coefficient 5
H05C1 Sensing Point 5 Coefficient 1
H05C2 Coefficient 2
H05C3 Coefficient 3
H05C4 Coefficient 4
H05C5 Coefficient 5
H06C1 Sensing Point 6 Coefficient 1
H06C2 Coefficient 2
H06C3 Coefficient 3
H06C4 Coefficient 4
H06C5 Coefficient 5
H07C1 Sensing Point 7 Coefficient 1
H07C2 Coefficient 2
H07C3 Coefficient 3
H07C4 Coefficient 4
H07C5 Coefficient 5
H08C1 Sensing Point 8 Coefficient 1
H08C2 Coefficient 2
H08C3 Coefficient 3
H08C4 Coefficient 4
H08C5 Coefficient 5

H09C1 Sensing Point 9 Coefficient 1
H09C2 Coefficient 2
H09C3 Coefficient 3
H09C4 Coefficient 4
H09C5 Coefficient 5
H10C1 Sensing Point 10 Coefficient 1
H10C2 Coefficient 2
H10C3 Coefficient 3
H10C4 Coefficient 4
H10C5 Coefficient 5
H11C1 Sensing Point 11 Coefficient 1
H11C2 Coefficient 2
H11C3 Coefficient 3
H11C4 Coefficient 4
H11C5 Coefficient 5
H12C1 Sensing Point 12 Coefficient 1
H12C2 Coefficient 2
H12C3 Coefficient 3
H12C4 Coefficient 4
H12C5 Coefficient 5
H13C1 Sensing Point 13 Coefficient 1
H13C2 Coefficient 2
H13C3 Coefficient 3
H13C4 Coefficient 4
H13C5 Coefficient 5
H14C1 Sensing Point 14 Coefficient 1
H14C2 Coefficient 2
H14C3 Coefficient 3
H14C4 Coefficient 4
H14C5 Coefficient 5
H15C1 Sensing Point 15 Coefficient 1
H15C2 Coefficient 2
H15C3 Coefficient 3
H15C4 Coefficient 4
H15C5 Coefficient 5
H16C1 Sensing Point 16 Coefficient 1
H16C2 Coefficient 2
H16C3 Coefficient 3
H16C4 Coefficient 4
H16C5 Coefficient 5

Doc. No. 003185 Rev. B D - 3

Model MT91 Multipoint Flowmeter