Liquid Controls IT200N User Manual
INSTALLATION & OPERATION
MANUAL
IT200N REV. D
Remote Rate Indicator
DOC#: MN-200N-D.doc
Sponsler, Inc.
IT200N Remote Rate Indicator
pg.
2
DOC#: MN-200N-D.DOC
Figure 6 – Dimensional Information .........................................................................................12
TABLE OF CONTENTS
PAGE #
SPECIFICATIONS ........................................................................................................................... 3
INTRODUCTION ............................................................................................................................. 4
General .................................................................................................................................... 4
Theory of Operation.................................................................................................................. 4
Calibration ................................................................................................................................ 4
INSTALLATION .............................................................................................................................. 5
Installation ................................................................................................................................ 5
Physical .................................................................................................................................... 5
Electrical ................................................................................................................................... 5
Signal ....................................................................................................................................... 5
CALIBRATION ................................................................................................................................ 6
Sensitivity ................................................................................................................................. 6
Calibration Factor ...................................................................................................................6,7
Change of Calibration Engineering Units ................................................................................7,8
Field Correction of Calibration Factor .....................................................................................8,9
Rate Display Considerations ..................................................................................................... 9
FUNCTION SELECTION ................................................................................................................10
Reset Function ........................................................................................................................10
MISCELLANEOUS .........................................................................................................................10
Factored Digital Pulse Output ..................................................................................................10
Battery Replacement ...............................................................................................................11
% of Flow Display ....................................................................................................................11
LIST OF ILLUSTRATIONS
Figure 1 – Mounting P.C.B. ...................................................................................................... 5
Figure 2 – Input & Digital P.C.B. ............................................................................................... 6
Figure 3 – Factoring P.C.B. ...................................................................................................... 7
Figure 4 – Resetting the Display ..............................................................................................10
Figure 5 – Board Stack Removal .............................................................................................11
Sponsler, Inc.
IT200N Remote Rate Indicator
pg.
3
DOC#: MN-200N-D.DOC
INPUT VOLTAGE:
Internal AA Lithium Battery
LCD, 6 Digit .35” characters
OUTPUT:
Factored pulse output via open drains @ 1A
ACCURACY:
Rate Indicator +/- 1%
Mounts directly on flowmeter
Weight @ 2. 5 lbs.
SPECIFICATIONS
TEMPERATURE:
Operating -40 to 85°C
Storage –65 to 125°C
Battery Operating Life –
Rate Function: 3 years typical
(Assuming 24 hr. operation at max. flowrate)
INPUT SIGNAL:
DISPLAY:
FEATURES:
ENCLOSURE:
Frequency 0-2500 Hz
Amplitude 25 mV – 36V sine or squarewave
Sensitivity field adjustable
Impedance 10K
Rate Indicator – 5 Digit
Leading zero blanking on rate display
Engineering units – Input f actoring 1 – 99,999
Pulse width 2ms
Reset externally initiated
FM Approved, C.S.A. Certified
Class I, Groups B,C,D
Class II, Groups E,F,G
Nema 4
Sponsler, Inc.
IT200N Remote Rate Indicator
pg.
4
DOC#: MN-200N-D.DOC
INTRODUCTION
General
The Model IT200N Industrial Remote Rate Indicator is a battery powered device that provides flow rate
in any engineering unit. Rate is displayed via a 6-digit liquid crystal display. Selection of the reset
function is accomplished externally by a magnetic field. T his par ticular feature retains the unit's int egrity
permitting complete operational contr ol in hazardous environments.
Negatives previously associated with LCD’s – poor cold temperature perform ances, 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 t o 125
In addition, the IT200N 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. The output is a 2ms
negative pulse for each unit of displayed rate.
Theory of Operation
The IT200N amplifies and shapes the incoming pulses generated by the turbine's response to f low. The
amplified pulse train is then divided, factored by a phase locked loop ( PLL) and co m bined with a
timebase circuit for absolute accur acy.
Calibration
Field Calibration is accomplished by incorporating a calibration factor based on the turbine K-Factor.
Divider switches provide divisional increments of 1-99,999. The calibration fact or is entered via 5 BCD
switches.
(SPONSLER, INC. ST RONGLY RECOMMENDS THOROUGH REVIE W AND
UNDERSTANDING OF THIS MANUAL PRIOR TO INSTALLATION)
o
C). All monolithic and discrete devices of the IT200N have
o
C.
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