INSTALLATION & OPERATION
MANUAL
IT150N
Remote Totalizer
DOC #: MN-150N-B.DOC
Sponsler, Inc.
IT150N Remote Totalizer
pg
2
DOC# MN-150N-B
PAGE #
TABLE OF CONTENTS
SPECIFICATIONS .......................................................................................................................... 3
INTRODUCTION ............................................................................................................................ 4
General ...................................................................................................................................... 4
Theory of Operation ................................................................................................................... 4
Calibration .................................................................................................................................. 4
INSTALLATION.............................................................................................................................. 5
Inspection .................................................................................................................................. 5
Physical ..................................................................................................................................... 5
Electrical .................................................................................................................................... 5
Signal ......................................................................................................................................... 5
CALIBRATION ............................................................................................................................... 6
Sensitivity ................................................................................................................................... 6
Calibration Factor .................................................................................................................... 6,7
“0-1” Function............................................................................................................................. 7
Change of Calibration Engineering Units .................................................................................... 8
Field Correction of Calibration Factor ......................................................................................... 9
FUNCTION SELECTION .............................................................................................................. 10
Reset Function ......................................................................................................................... 10
MISCELLANEOUS ....................................................................................................................... 10
Factored Digital Pulse Output ................................................................................................. 10
Battery Replacement ........................................................................................................... 10,11
LIST OF ILLUSTRATIONS
Figure 1 – Mounting P.C.B. ........................................................................................................ 5
Figure 2 – Input & Analog P.C.B. ............................................................................................... 6
Figure 3 – Factoring P.C.B. ........................................................................................................ 7
Figure 4 – Resetting the Display .............................................................................................. 10
Figure 5 – Board Stack Removal.............................................................................................. 11
Figure 6 – Dimensional Information .......................................................................................... 12
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
TEMPERATURE:
INPUT VOLTAGE:
Internal AA Lithium Battery
INPUT SIGNAL:
Frequency 0-2500 Hz
DISPLAY:
LCD, 8 Digit .3” Characters
OUTPUT
Factored pulse output via Open Drain @ 1A
ACCURACY:
Totalizer +/- 1 Count
FEATURES:
Mounts directly on flowmeter
ENCLOSURE:
FM Approved, C.S.A. Certified
Weight 2.5 lbs .
SPECIFICATIONS
Operating -40 to 85°C
Storage -65 to 125°C
Battery Operating Life – 4 years
Amplitude 25 mV – 36 V sine or square wave
Sensitivity field adjustable
Impedance 10K
Totalizer – 8 Digit
Totalizer Reset Externally Initiated
Input factoring .00000001 – 1.9999 allows totalization in any
engineering unit
Display Reset Externally Initiated
Class I Groups B, C, D
Class II Groups E, F, G
Nema 4
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
INTRODUCTION
General
The Model IT150N Industrial Remote Totalizer is a battery powered device that provides flow totalization
in any engineering unit. Total is displayed via an 8 digit liquid crystal display. Reset of the totalizer is
accomplished externally by a magnetic field. This particular feature retains the unit’s integrity permitting
complete operational control in hazardous environments.
Negatives previously associated with LCD’s – poor cold temperature performances, condensation which
is a byproduct of heaters and display ghosting have all been eradicated by incorporating a low
temperature coefficient LCD (-35
temperature specs of –40 to 125
In addition, the IT150N provides 1 digital interface output. The scaled pulse output is an open drain
configuration in which the pulse amplitude assumes the level of the host device. One pulse is generated
for each increment of the totalizer.
Theory of Operation
The IT150N amplifies and shapes the incoming pulses generated by the turbines response to flow. The
amplified pulse train is then scaled and divided to produce a totalized display in the desired engineering
unit.
Calibration
Field calibration is accomplished by incorporating a calibration factor based on the turbine K-Factor. A
divider switch provides divisional increments of 10X from 1 to 10,000. The calibration factor is entered
via 4 BCD switches, a divider switch, and a 0-1 dip switch. The calibration factor range is 0.00000001 –
1.9999.
(SPONSLER, INC., STRONG LY RECO MMENDS T HOROUGH REVIEW AND UNDERSTANDING OF
THIS MANUAL PRIOR TO INSTALLATION)
o
C). All monolithic and discrete devices of the IT150N have
o
C.
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
INSTALLATION
Inspection
All units are completely assembled, tested & inspected at the factory prior to shipment. Upon receipt of
the unit a visual inspection should be conducted to detect any impropriety or damage that may have
occurred during shipment. Report any discrepancy to the factory immediately.
Physical
The IT150N Remote Totalizer is meter mounted and should be positioned as practically as possible
taking into account display visibility, accessibility, etc. The IT150N enclosure is rated Class 1, Groups B,
C, D; Class II Groups E, F, G and Class III Nema 4 and will withstand the harshest environment.
Electrical
The IT150N Remote Totalizer is designed to operate with a single internal AA battery and requires no
external wiring for power. Wiring of the digital output can be accomplished in a couple of different
methods to fit the application. Shielded cable (Alpha 1710) is recommended to insure adequate noise
immunity for the digital signal output.
Signal
A 2 wire twisted pair with molex and tinned terminations are standard. Pin orientation of the molex
connector or the tinned terminations is negligible.
FIGURE 1
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
Engineering units
K-Factor
F x T x C.F.
D
Frequency =
K-Factor x Flowrate
60
Formula #1
CALIBRATION
Sensitivity
The sensitivity adjust R1 is located on the IT150I (Input and Analog) P.C.B. The amplitude of the signal
generated by the turbine is proportional to the rate of flow; therefore, sensitivity should be adjusted at the
lowest usable flow rate. Rotate R1 completely counterclockwise then slowly rotate R1 clockwise until the
display correctly responds then increase R1 slightly clockwise. The nominal R1 position is with the arrow
indicating 11 o’clock.
FIGURE 2
Calibration Factor
The calibration factor is derived from the turbine’s K-Factor (Pulses per gallon or other desired
engineering unit).
C.F. =
EXAMPLE 1: K-Factor = 250 pulses per gallon
Engineering Units = gallons
∴ C.F. = 1/250 = .004000
On the Factoring P.C.B.:
Set S6 #3 ‘ON’ (↓ Position) for ÷ 100 (moves decimal point right 2 places)
Set S2@4, S3, 4, 5@0 (.4000)
Set S1 in ‘0’ position (.4000) (On the IT150I P.C.B.)
The electrical accuracy can be verified by injecting a stable frequency @ TB2-1,2 on the Mounting
P.C.B. and incorporating the following formula:
Total =
Where F = Frequency in Hz ( )
T = Time (Duration) of test in seconds
C.F. = Calibration Factor as entered in S1-S5
D = Divider as entered in S6
Formula #2
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
41,381,600 x 1.2566
100
500 x 60 x .4000
30,000 x .400
12000
100
100
100
41,381,600 x .1257
10
EXAMPLE #2: F = 500 Hz T = 1 minute (60 sec) C.F. = .4000
Total Displayed =
=
=
= 120 in 1 minute
FIGURE 3
Calibration ‘0-1’ Function
The ‘0-1’ function provides enhanced accuracy when totalization encompasses a large quantity or an
extended period of time such as SCF produced in a 24 hour period.
The ‘0-1’ function should be incorporated only when both the conditions listed below are met:
1) C.F.’s 1
2) C.F.’s 5
st
digit right of decimal is 1
th
digit right of decimal is not 0
Example #3 Assume a turbine has a K-Factor of 79.58 pulses per SCF and the customer product
demand is 520,000 SCF a day
C.F. = 1/79.58
= .0125659 = .12566 ÷10 Note: Both conditions are met
Without the ‘0-1’ function:
Set S6 #2 ‘ON’ (↓ Position) for ÷ 10 (moves decimal point right 1 place)
Set S2@1, S3@2, S4@5, S5@7 (.1257 rounding fourth digit)
Set S1 in ‘0’ Position (0.1257) on the IT150I P.C.B.
A usage of 520,000 SCF = 41,381,600 total pulses (520,000 x 79.58) and using the C.F. of S1-S6
the displayed quantity is 520,166 SCF ( )
rather than 520,000 for a difference of 166 SCF.
With the ‘0-1’ function:
Set S6 #3 ‘ON’ (↓ Position) for ÷ 100 (moves decimal right 2 places)
Set S2@2, S3@5, S4@6, S5@6 (.2566)
Set S1 in ‘1’ Position (1.2566) on the IT150I P.C.B.
As stated above the 24 hr usage is 520,000 SCF. The displayed quantity is now 520,001 SCF
( ) for a difference of 1 SCF.
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
Units per Gallon
Pulses per Gallon
Formula #3
Change of Calibration Engineering Units
Assume that liters rather than gallons is the desired engineering unit.
Example # 4 K-Factor = 250 pulses per gallon
Liters = 3.785 per gallon
C.F. =
C.F. = 3.785 / 250
C.F. = .01514 for display of liters
On the Factoring P.C.B.:
Set S6 #2 ‘ON’ (↓ Position) (moves decimal point right 1 place)
Set S2@1, S3@5, S4@1, S5@4 (.1514)
Set S1 in ‘0’ Position (0.1514) on the IT150I P.C.B.
Note: The ‘0-1’ function was not incorporated because only 1 of the 2 conditions was met C.F.’s 1
Example #5: The Engineering unit is pounds in 10 K-Factor = 250 pulses per gallon Pounds of CO
In order to establish 10
C.F. = 84.7/250
C.F. = .3388
On the Factoring P.C.B.:
Set S6 #1 ‘ON’ (↓ Position) (does not move decimal)
Set S2@3, S3@3, S4@8, S5@8 (.3388)
Set S1 in ‘0’ Position (0.3388) on the IT150I P.C.B.
Note: If the gallons per unit volume such as 7.48 gallons per FT
gallon as required to calculate calibration factor; take the reciprocal of gallons per unit volume to
derive the unit volume per gallon; i.e. 7.48 gallons per FT
Example #6: The engineering unit is ACF (FT
K-Factor = 250 pulses per gallon
ACF = .13369 per gallon
C.F. = .13369 / 250
C.F. = .00053476
On the Factoring P.C.B.:
Set S6 #4 ‘ON’ (↓ Position) (moves decimal point right 3 places
Set S2@5, S3@3, S4@4, S5@8 (.5348 rounding fourth digit)
Set S1 in ‘0’ Position (0.5348) on IT150I P.C.B.
Example #7: Desired Engineering Unit is ACF x 10
K-Factor = 250 pulses per gallon
ACF = .13369 per gallon
In order to establish x 10, decrease ACF/gal by a factor of 10
st
digit right of decimal is 1
= 8.470 per gallon
2
th
s, increase lbs./gal. by a factor of 10
th
s CO2
3
is known, but not the unit volume per
3
- 1/7.48 = .13369 FT3 per gallon.
3
)
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
Actual Quantity
Displayed Quantity
Formula #4
C.F. = .013369 / 250 = .000053476
On the factori ng P.C.B.:
Set S6 #5 ‘ON’ (↓ Position) (moves decimal point right 4 places
Set S2@5, S3@3, S4@4, S5@8 (.5348 rounding fourth digit)
Set S1 in ‘0’ Position (0.5348) on the IT150I P.C.B.
Field Correction of Calibration Factor
To adjust the calibration factor to reflect the turbine’s actual response to the operating conditions,
incorporate the following formula:
New C.F =
Example #8: Actual = 50
Displayed = 52
C.F. = .4000
New C.F.= 50/52 x .4000
= .9615 x .4000
= .3846
On th e factoring P .C.B.:
Set S2@3, S3@8, S4@4, S5@6
In the above example, .9615 denotes that the meter is operating 4% fast. Multiplying by the present C.F.
(.4000) by the Actual : Displayed Ratio (.9615) effectively reduces the error by decreasing the C.F. 4%.
Example #9: Actual = 52
Displayed = 50
C.F. = .4000
New C.F. = 52/50 x .4000
= 1.04 x .4000
= .4160
On the Factoring P.C.B.:
Set S2@4, S3@1, S4@6, S5@0
In the above example, 1.04 denotes that the meter is operating 4% slow. Multiplying the present C.F.
(.4000) by the Actual : Displayed Ratio (1.04) effectively reduces the error by increasing the C.F. 4%.
x Present C.F.
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
IT150M
SIGNAL OUT +
SIGNAL OUT –
V+
TB1-3
TB1-4
RL
FUNCTION SELECTION
Reset Function
Reset is incorporated to set the Display to 00000000.
Reset is initiated externally by placing a magnet in the proximity of reset S7 located on the Display
P.C.B. and indicated on the enclosure label as ‘RESET’.
FIGURE 4
MISCELLANEOUS
Factored Digital Pulse Output
This signal is an open drain configuration which can sink 1A continuously. The maximum drain voltage
should not exceed 150VDC (V+). A pull-up resistor must be in series with V+ and TB1-3. The output is
a 2ms negative pulse for each increment of the totalizer; i.e. 1 pulse for each count on the LCD.
Typical Configurat ion-
Battery Replacement
The battery is located on the Mounting P.C.B. and inserts into 2 sockets. When installing the battery, it is
imperative to OBSERVE POLARITY. Simply pull the 3-board stack (See Figure #5) out of the enclosure,
install the battery and reinsert the board stack. The display will be all zeros.
(V-)
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IT150N Remote Totalizer
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DOC# MN-150N-B
FIGURE 5
This figure illustrates the removal of the 3 board stack from the condulet. Note that the mounting board
is not removed.
CAUTION: Do not use the LCD model or S7 as grip points to remove the board stack. Use the
extended screw mounts provided.
To put the 3 board stack back in the condulet, align as illustrated and push down.
Sponsler, Inc.
IT150N Remote Totalizer
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DOC# MN-150N-B
Dimensional Information
FIGURE 6
©2009
Pub. No. MN-150-N
(09/09)
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