651 K9 RF Admittance
Two Wire Point Level Control
General Instructions
These instructions provide specific information for installation,
electrical connection, calibration and troubleshooting for the
651 K9 RF Admittance Two-Wire Point Level Control.
NOTE: If you suspect that a product is defective, contact the factory
®
or the SOR
number.
competent personnel.
Pre-Installation I/O Test and Calibration
Remove the housing cover.
Place the instrument on an insulated surface or support
so the sensor does not touch a conductive surface.
Representative in your area for a return authorization
This product should only be installed by trained and
Apply 12 to 28VDC, and observe the LED. (See on page 2)
NOTE: When the LED is on, it indicates the output is in the normal state 16-20mA.
Turn the sensitivity adjustment clockwise (up to 25 turns) to increase sensitivity until
the LED goes out.
NOTE: Do not turn the sensitivity adjustment past 25 turns! Damage to the unit could result.
Turn the sensitivity adjustment counterclockwise to decrease sensitivity until the
LED illuminates.
Table of Contents
Pre-Installation I/O and Calibration ....... 1-2
Installation .......................................3
Design and
specifications are
subject to change
without notice.
For latest revision, go to
www.sorinc.com
Electrical Connections .........................4
Post-Installation Calibration ..................4
SOR RF Probe Grounding Screen ............5
Control Drawings ............................ 6-9
Instructions for EMC .......................... 10
Spare Parts .................................... 10
Information for IEC-Listed Product ......... 10
Maintenance and Troubleshooting ......... 11
Dimensions ................................ 12-13
ATEX and IECEx Marking Details ........... 14
Declaration of Conformity ................... 15
Form 759 (03.13) SOR Inc.
Registered Quality System to ISO 9001
1/16
Turn the sensitivity adjustment slowly clockwise until LED goes off, then
counterclockwise until LED goes on to check the null position to verify that the bridge is
balanced. It is desirable to closely bracket the position where the LED came on.
Turn the sensitivity adjustment one turn counterclockwise from the null position. Next,
slowly move a hand toward the probe to touch it. The LED should stay on until the
probe is touched. If it goes out when the hand is near, turn the sensitivity control
counterclockwise so the LED stays on until the hand touches the probe. Usually,
1-2 turns will locate the new null point.
LED
Terminal Block
(opposite side)
Fail Safe
Switch
Sensitivity
Adjustment
When practical, use a small container of actual process material to calibrate the control.
Banana
Plug
Ring
Terminal
If the actual process vessel is metal, use a metal container (coffee can, etc.) and ground
it to the instrument housing. If the actual process vessel is an insulator, such as,
fiberglass, use a plastic container.
Immerse the sensor in the process material; the LED should turn off. If not, rotate the
sensitivity adjustment clockwise until the LED goes off.
To detect an interface, such as oil/water or foam/liquid, the lighter material must be in
contact with the sensor, then tuned out. Then adjust the sensitivity to detect the heavier
process material. (See
2/16
and )
Oil
Water
Form 759 (03.13) SOR Inc.
Output Signal
Failsafe Hi Lo
Absence of Process 16-20mA 4-8mA
Presence of Process 4-8mA 16-20mA
Installation
Standard con guration is a 3/4” NPT(M) pipe nipple that threads into a 3/4” NPT(F) vessel
nozzle or half coupling. Allow a 4” turn radius (See
vats, sumps or basins require a locally-made bracket mount similar to that shown in.
(See
).
Optional con guration is a raised face or flat face ANSI flange. See Form 1100 for
selection. (See
and )
and ). Sometimes open tanks,
Orientation. The control can be mounted in any position. Sensitivity is optimized when the
greatest surface area of the sensor is parallel to the process level. (See
and )
Form 759 (03.13) SOR Inc.
3/16
When the process is adhesive, i.e. it tends to coat the sensor, it may be desirable to mount
it on a 45° angle to reduce product build-up and to increase its effective surface area. (See
and )
Placement and orientation of the sensor in a vessel is frequently determined by available
nozzles. The sensor should be away from fill points to avoid false trips. The insulator
bushing on the sensor should protrude a minimum of 1” from the inner wall of the vessel.
The sensor must not touch any metal, nor should conductive product build-up be allowed
to bridge between the sensor and a grounded metal tank wall.
This product must be installed with an explosion proof breather vent per
Agency requirements and the National Electric Code-Article 501, Section F,
paragraph 3.
Electrical Connections
Electrical power must be disconnected from explosion proof/intrinsically
safe models before the cover is removed. Failure to do so could result in
severe personal injury or substantial property damage.
Remove the housing cover. Ensure that all wiring conforms to all applicable local and
national electrical codes and install unit(s) according to relevant national and local
safety codes.
Connect the positive loop power wire to the terminal marked “+”.
Connect the negative loop power wire to the terminal marked “-”.
Replace the cover.
Apply power.
Post-Installation Calibration
Units in Hazardous Locations — Prior to calibration, make certain that the
work area is declassi ed before removing the explosion proof cover to
calibrate the unit. Failure to do so could result in severe personal injury
and/or substantial property damage.
Turn the set-point adjustment to the full clockwise position. The LED should be off
(in Hi Level Fail-safe mode).
Turn the adjustment slowly counter-clockwise until the LED just changes state (on).
Raise the material level until it is above the sensing element. The LED should be off.
Turn the adjustment slowly counter-clockwise until the LED illuminates. Then turn the
adjustment 1/2 turn clockwise (LED off) to complete the calibration.
4/16
Form 759 (03.13) SOR Inc.
SOR RF Probe Grounding Scheme
Critical Grounding Path =
Power Supply
Circuit
Board
Line
Neutral
Ground
IMPORTANT! Do not
provide separate earth
grounding for the process
connection. This can create
a parallel grounding circuit
Do not provide separate
that will impair operation
and calibration.
earth grounding for the
process connection. This can
create a parallel grounding circuit
that will impair operation and calibration.
Line
Neutral
Ground
Electronics
Housing
Process
Connection
SOR Supplied
Stilling Well
(optional)
Probe Center
Conductive Element
Form 759 (03.13) SOR Inc.
5/16
Control Drawing
Drawing 9093008
6/16
Form 759 (03.13) SOR Inc.
Control Drawing
Drawing 9093010
Form 759 (03.13) SOR Inc.
7/16
Control Drawing
Drawing 9093011
8/16
Form 759 (03.13) SOR Inc.
Control Drawing
Drawing 9093009
Form 759 (03.13) SOR Inc.
9/16
Instructions for EMC
651K9
When subjected to an RF Interference, the
651K9 will maintain the +1% accuracy in
all frequency ranges. In order to achieve
the stated accuracy for the 651K9, a
shielded cable, cable gland, shield bead
and the probe should be mounted in a
metallic vessel. SOR recommends using
a shielded cable made of PVC
Insulation around a tinned copper braid
shield (Olflex CY cable or equivalent).
Refer to illustrations for installation of
shield bead onto the probe wire.
Spare Parts
Short/Fat Bead
To order a new circuit board assembly, use the following part number:
NOTE: Replacement of circuit boards not allowed on agency listed units.
99-414
Instructions for IEC-Listed Product
Certificate Number: IECEx BAS 05.0054X, Issue 2
Standards: IEC 60079-0:2011, Ed 6 and IEC 60079-11:2011, Ed 6
Listing: Ex ib IIB Tx Gb (-40°C < Ta < +80°C)
Certificate Number: Baseefa 12ATEX0084X
Standards: IEC 60079-0:2011, Ed 6 and EN60079-11:2012
Condition of Safe Use: This apparatus may not be capable of
withstanding the insulation test required by Clause 6.4.12 of
IEC 60079-11:1999. This must be taken into account when installing the apparatus.
Parameters: Ui = 28V
Ii = 100mA
Pi = 0.75W
Li = 0
Ci = 0
10/16
Form 759 (03.13) SOR Inc.
Troubleshooting
Sympton/Problem
LED stays illuminated,
even at maximum
sensitivity setting (full
clockwise 25 turns).
LED stays off, even at
minimum sensitivity
setting (full counterclockwise, 25 turns).
Device will not detect
process material.
Possible Cause Corrective Action
1. Banana plug is loose or
disconnected
2. Probe lead is shorted to
case or ground
3. Faulty sensing circuit
No power to the circuit or
excessive loop resistance.
1. Bad circuit switch
2. The oscillator is not
working
1. Plug banana plug
securely into sensor
jack.
2. Check that the bare end
of the probe is not
touching any metal
part. Clean, repair or
replace the sensor
assembly.
3. Call the factory.
Check the voltage at the
terminal block. It should
be a minimum of 12V.
Call the factory.
Calibration drifts 1. Sensitivity improperly set
2. Highly conductive
product
3. Heavy conductive
build-up on the sensor
Corroded sensor Process material has
chemically attacked sensor
Eroded or abraded
sensor
Fast flowing or agitated
process has physically
attacked sensor.
Output current exceeds
Bad current switch Call the factory.
23 mA
1. Recalibrate according to
Post-Installation
Calibration Instructions
on page 3.
2. Use sheather sensor.
3. Use sheather sensor and
periodically remove
build-up.
Use sheather sensor to
provide corrosion
resistance.
Consider other sensor
material or design,
relocating sensor or a
stilling well in liquid
process.
Output current is below
3.5 mA
NOTE: Agency certi ed units, (FM, CSA, IEC) must be returned to SOR for repairs.
Form 759 (03.13) SOR Inc.
The oscillator is not
working.
Call the factory.
11/16
Dimensions - K Housing Con guration (Explosion Proof Integral)
Dimensions are for reference only.
Contact the factory for certified drawings
for a particular model number.
Linear = mm/inches
Drawing 0390654
Process Connection
3/4” NPT(M)
1, 1-1/2, & 2” NPT(M)
Flanged
Stilling Well N/A
Dim B Dim C
Cable Probe
87.8
3.46
99.7
3.92
158.5
6.24
All Other
Probes
94.1
3.71
97.3
3.83
158.5
6.24
120.0
4.72
Cable Probe
256.0
10.08
268.0
10.56
326.8
12.87
N/A
All Other
Probes
262.4
10.33
265.6
10.46
326.8
12.87
288.3
11.35
12/16
Form 759 (03.13) SOR Inc.
Dimensions - K Housing Con guration (Explosion Proof Integral)
Dual Rigid Probe Detail
Dimensions are for
reference only.
Contact the factory
for certified drawings
for a particular model
number.
Dual Cable Probe Detail
Linear = mm/inches
Drawing 0390654
Linear = mm/inches
Drawing 0390654
Form 759 (03.13) SOR Inc.
13/16
General Information for ATEX Certi ed Models
Sample Nameplates
Manufacturer’s
Registered
Trademark
Drawing 8924119
Location of Product
Model Identification
Location of
Serial Number
(First Two Numbers
Indicate Year of
Manufacture)
Drawing 0720527
Manufacturer’s
Registered
Trademark
Location of ATEX
Listing Information
14/16
Form 759 (03.13) SOR Inc.
Declaration of Conformity
Form 1384 (09.12) ©2012 SOR Inc. (Printed in USA)
Product
Manufacturer
Date of Issue
We declare that the above
products conform to
the following specifications
and directives
Carries the marking
Reference document
ATEX Notified Body
Persons responsible
2 Wire RF Admittance Transmitter Model 651
SOR Inc.
14685 West 105
th
Street
Lenexa, Kansas 66215-2003
United States of America
July 24, 2012
ATEX Directive (94/9/EC) Equipment Intended for use
in Potentially Explosive Atmospheres
IEC 60079-0: 2011 IEC 60079-11: 2011
EN 60079-11: 2012
II 2G Ex ib IIB Tx Gb
(-40°C Ta +80°C)
EC-Type Examination Certificate
Baseefa 12ATEX0084X
IECEx BAS 05.0054X Issued August 16, 2005
Baseefa Ltd. (Notified Body No. 1180)
Rockhead Business Park, Staden Lane,
Buxton, Derbyshire SK17 9RZ
United Kingdom
Baseefa Customer Reference No. 1021
John J. Fortino (VP of Engineering)
John J. Fortino
14685 West 105th Street, Lenexa, KS 66215-2003
s53!s&!8
Engineered to Order with Off-the-Shelf Speed
EC Declaration
of Conformity
For ATEX Certi ed Models
Form 759 (03.13) SOR Inc.
15/16
Printed in USA www.sorinc.com
14685 West 105th Street, Lenexa, KS 66215 913-888-2630 800-676-6794 USA Fax 913-888-0767
16/16
Registered Quality System to ISO 9001
Form 759 (03.13) SOR Inc.
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