INSTALLATION & OPERATION
MANUAL
SP711-3 REV. A
3-Wire Analog Transmitter
DOC#: MN-711-3-A.doc
Sponsler, Inc.
SP711-3 3-Wire Analog Transmitter
pg
2
DOC#: MN-711-3-A
12-28VDC 50mA min.
Signal Input:
Frequency 0-10KHz
Analog Output
0V @ 0Hz, 5 or 10V @ desired full scale frequency
Features:
Switch selectable output range
FM Approved, CSA Certified
Weight 1.7 lbs.
SPECIFICATIONS
Temperature:
Input Voltage:
Operating -40 to 85°C
Storage -65 to 125°C
Protected against polarity reversal
Amplitude 20mV - 35V sine or square wave
Sensitivity field adjustable
Impedance 10K
Full scale range - 75Hz-10KHz selectable
Consult factory for other ranges
Response time - 95% of change in 1 second
Linearity - .3% F/S
Tempco - < 2% of reading over entire temperature range
Minimum load resistance 250 ohms
Mounts directly on flowmeter
Enclosure:
Class I Groups B, C, D
Class II Groups E, F, G
The SP711-3 is a meter mounted 3-wire analog transmitter designed to linearly convert a
frequency input to an equivalent voltage output whose level is switch selectable @ 0-5V/0-10V.
When incorporated with a turbine flowmeter a voltage representation proportional to flow is
obtainable.
A full-scale frequency range of 75Hz – 10KHz is jumper selectable. The span adjustment
establishes the frequency point at which the full-scale voltage output (5V or 10V) is achieved.
The sensitivity adjustment permits the SP711-3 to discriminate between a signal input or noise
by increasing (CCW) or decreasing (CW) the input signal amplitude necessary to be processed
as a valid signal. This in conjunction with direct meter mounting allows the SP711-3 to operate
effectively in noisy environments.
Sponsler, Inc.
SP711-3 3-Wire Analog Transmitter
pg
3
DOC#: MN-711-3-A
A)
Connect DMM positive & negative leads to J1-3,4 respectively & set DMM function
to DC Volts
B)
Connect power supply positive & negative leads to J1-5,4 respectively
Connect frequency generator positive & negative leads to J1-1,2; respectively.
Set output to sinewave & amplitude to zero
D)
Install jumper @ JU2-4 for desired full-scale frequency range, set S1 to 0-5V or
0- 10V for desired output level.
E)
Set ‘Sensitivity’ adjust (R1) fully clockwise
F)
Turn power supply & frequency Generator ‘ON’, DMM should indicate 0VDC
G)
Adjust ‘ZERO’ (R10) for DMM indication of .000V
H)
Adjust signal amplitude of frequency generator to 20mV & frequency to maximum
desired point (full scale frequency)
I)
Adjust ‘SPAN’ (R8) for 5.00V or 10.00V DMM indication
J)
Reduce signal amplitude of frequency generator to zero, adjust ‘ZERO’ (R10) for
DMM indication of .000V if necessary
Adjust signal amplitude of frequency generator to 20mV, adjust ‘SPAN’ (R8) for
5.00V or 10.00V DMM indication if necessary
L)
Adjust frequency of frequency generator to exactly 50% of maximum frequency
point in step H, DMM should indicate 2.50V or 5.00V + .02V.
10 X .375 = 3.75 DMM should indicate 3.75V + .03V
BENCH TEST CALIBRATION PROCEDURE
Required Equipment: Power Supply 12-28VDC, Digital Multimeter (DMM), Frequency
Generator, & Frequency Counter
Refer to Figure
Test Procedure:
C)
K)
To check linearity @ any frequency point, incorporate the following formula:
(F/F
X full scale output) = Volts
max
Ex. Assume maximum frequency point = 2000Hz & full scale output
Voltage = 10V
Check for linearity @ 750Hz point
750/2000 = .375
Sponsler, Inc.
SP711-3 3-Wire Analog Transmitter
pg
4
DOC#: MN-711-3-A
2.40 DP.
3.75 DIA.
5.60
3.00 DIA.
1.40
3/4-14 FNPT
5-5-97
TN
EM SP711-3-A
SP711-3 REV. A TRANSMITTER
\ELECT\SP711-3.DWG
NONE
DRAWING NUMBER
MATERIAL
SPONSLER, INC.
SCALE
DRAWN BY
DATE
APPR. BY
DATE
REVIEWED BY
DATE
DESCRIPTION
REV. #
FILE NAME
CODE
REVCKDR
AUTH
REVISION RECORD
DATE
SIGNAL IN +
SIGNAL IN –
ANALOG OUT +
ANALOG OUT –
DC INPUT –
DC INPUT +
1
2
3
4
5
TERMINAL LOCATION
SENSITIVITY
ANALOG
OUTPUT
SELECT
NOTE: DIMIENSIONS ARE IN INCHES
.90
RL
F/S FREQUENCY RANGE SELECT
JU1: 1875-10,000 Hz
JU2: 350-1950 Hz
JU3: 75-375 Hz
©2009
Pub. No. MN-711-3A
(09/09)
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