Mercoid Bulletin L-23 Series PBLTX Submersible Level Transducer Instruction Manual
- June 3, 2024
- Mercoid
Table of Contents
Bulletin L-23 Series PBLTX Submersible Level Transducer
Instruction Manual
Specifications – Installation and Operating Instructions
Bulletin L-23 Series PBLTX Submersible Level Transducer
The Series PBLTX Submersible Level Transducer is manufactured for years of
trouble free service in the harshest applications. The PBLTX measures the
height of liquid above its position in the tank referenced to atmospheric
pressure. The transducer consists of a piezoresistive sensing element, encased
in a 316 SS housing. Perfect for wastewater and slurry applications with
features to protect the unit from these demanding applications. Large diameter
316 SS diaphragm seal is non-clogging and damage resistant to floating solids.
Comes equipped with a 270-pound tensile strength, shielded, vented cable.
Ventilation tube in the cable automatically compensates for changes in
atmospheric pressure above the tank. The vent is protected with a maintenance
free filter eliminating particulate or water droplets from entering the
transducer.
Intrinsic Safety Approval Classification
The PBLTX is UL listed for use in Hazardous (Classified) Locations. The
protection method is by Intrinsic Safety, “ia”. It was investigated by UL
under UL Standard 913 8th Edition, CAN/CSA C22.2 No. 60079-0:15 and CAN/CSA
C22.2 No. 60079-11:14.
Hazardous (Classified) Location Intrinsically Safe For:
Class I, Div. 1, Groups A,B,C,D; Class II, Groups E,F,G; Class III
Class I Zone 0 AEx ia IIC T4 Ga
Zone 20 AEx ia IIIC T135°C Da
Ex ia IIC T4 Ga
Ex ia IIIC T135°C Da
Ta = -20°C to 80°C (ETFE Cable)
Ta = -20°C to 65°C (Polyurethane Cable)
Install in accordance with Control Drawing 001833-44.
See Control Drawing 001833-44 for Entity Parameters.
ATEX Certified for: II 1 G Ex ia IIC T4 Ga / II 1 D Ex ia IIIC T135°C Da
(-20°C ≤ Tamb ≤ 80°C ETFE cable) (-20°C ≤ Tamb ≤ 65°C Polyurethane cable)
ATEX EU-Type Certificate: DEMKO 18 ATEX 2080
ATEX Standards: EN IEC 60079-0, EN 60079-11
IECEx Certified for: Ex ia IIC T4 Ga / Ex ia IIIC T135°C Da (-20°C ≤ Tamb
≤ 80°C ETFE cable) (-20°C ≤ Tamb ≤ 65°C Polyurethane cable)
IECEx Certificate of Conformity: IECEx UL 18.0086
IECEx Standards: IEC 60079-0, IEC 60079-11
UKCA Ex Certified for: II 1 G Ex ia IIC T4 Ga / II 1 D Ex ia IIIC T135°C
Da (-20°C ≤ Tamb ≤ 80°C ETFE cable) (-20°C ≤ Tamb ≤ 65°C Polyurethane cable)
UKCA Ex Certificate: UL21UKEX2364
UKCA Ex Standards: EN IEC 60079-0, EN 60079-11
Install in accordance with Control Drawing 001833-47.
See Control Drawing 001833-47 for Entity Parameters.
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Body: 316 SS, 316L SS; Cable: Polyether polyurethane or
ETFE; Seals: Fluoroelastomer.
Accuracy: ±0.25% FS.
Temperature Limit: ETFE cable equipped -4 to 176°F (-20 to 80°C);
Polyurethane cable equipped -4 to 149°F (-20 to 65°C).
Compensated Temperature Range: -4 to 176°F (-20 to 80°C).
Thermal Effect: Less than ±.02%/ FS/°F.
Pressure Limit: 2X FS.
Power Requirement: 10-28 VDC.
Output Signal: 4-20 mA DC, 2-wire.
Response Time: 50 msec.
Max. Loop Resistance: 900 Ω.
Electrical Connection: Wire pigtail.
Mounting Orientation: Suspended in tank below level being measured. Can
be placed on the bottom of the tank on its side.
Weight: 3.8 lb (1.7 kg) to 4.3 lb (2.0 kg).
Compliance: CE, UKCA, See Intrinsic Safety Approval Classification.
Note: References to ATEX apply to UKCA Ex.
WARNING: Use with approved safety barriers using entity evaluation.
CAUTION: Do not exceed specified supply voltage ratings. Permanent damage
not covered by warranty will result. This device is not designed for 120 or
240 VAC operation. Use only on 10-28 VDC.
INSTALLATION
- Location: Select a location where the temperature of the transducer will be between -4 and 176°F (-20 to 80°C) for ETFE cable or -4 and 149°F (-20 to 65°C) for polyurethane cable. Distance from the receiver is limited only by total loop resistance.
- Position: The transducer is not position sensitive. However all standard models are originally calibrated with the unit in a position with the diaphragm downward. Although they can be used at other an gles, for best accuracy it is recommended that units be installed in the position calibrated at the factory.
- Mounting: The transducer can be mounted via several methods. It can be suspended from the electrical cable, it can be placed resting on the bottom of the tank in either horizontal or vertical orientation, or it can be attached to a pipe or hang wire by the 1/2˝ NPT male connection on the top of the housing.
- Wire Length: The maximum length of wire connecting the transducer and receiver is a function of wire size and receiver resistance. Wiring should not contribute more than 10% of the receiver resistance to total loop resistance. For extremely long runs (over 1000 feet), choose receivers with higher resistance to minimize the size and cost of connecting leads. Where wiring length is under 100 feet, wire as small as 22 AWG can be used.
- Wiring: An external power supply delivering 10-28 VDC with minimum current capability of 40 mA DC (per transducer) is required to power the control loop. See Figure A for connection of the power supply, transducer and receiver. The range of appropriate receiver load resistance (RL) for the DC power supply voltage available is expressed by the formula:
Shielded cable is recommended for control loop wiring.
Black wire is negative [-] and red wire is positive [+]
in Figure B.
MAINTENANCE
After final installation of the pressure transducer and its companion
receiver, no routine maintenance is required. A periodic check of system
calibration is suggested. The Series PBLTX transducers are not field
repairable and should be returned if repair is needed (field repair should not
be attempted and may void warranty). Be sure to include a brief description of
the problem plus any relevant application notes. Contact customer service to
receive a return goods authorization number before shipping.
NOTES:
- SELECTED ASSOCIATED APPARATUS MUST BE THIRD PARTY LISTED AS PROVIDING INTRINSICALLY SAFE CIRCUITS FOR THE APPLICATION, AND NOT EXCEED THE ENTITY PARAMETERS LISTED IN THIS DRAWING.
- ASSOCIATED APPARATUS OUTPUT CURRENT MUST BE LIMITED BY A RESISTOR SUCH THAT THE OUTPUT VOLTAGE—CURRENT PLOT IS A STRAIGHT LINE DRAWN BETWEEN OPEN—CIRCUIT VOLTAGE AND SHORT—CIRCUIT CURRENT.
- CAPACITANCE AND INDUCTANCE OF THE FIELD WIRING FROM THE INTRINSICALLY SAFE TRANSDUCER TO THE ASSOCIATED APPARATUS SHALL BE CALCULATED AND MUST BE INCLUDED IN THE SYSTEM CALCULATIONS AS SHOWN IN THIS DRAWING.
- TRANSDUCERS MUST BE INSTALLED TO THE MANUFACTURER’S CONTROL DRAWING AND ARTICLE 504 OF THE NATIONAL ELECTRICAL CODE (ANSI/NFPA 70) FOR INSTALLATION IN THE UNITED STATES OR SECTION 18 OF THE CANADIAN ELECTRICAL CODE (CSA C22.1) FOR INSTALLATION IN CANADA OR OTHER LOCAL INSTALLATION CODES, AS APPLICABLE.
- THE ASSOCIATED APPARATUS MANUFACTURER’S INSTALLATION INSTRUCTIONS MUST BE FOLLOWED WHEN INSTALLING THE EQUIPMENT.
- NO REVISIONS TO THIS DRAWING WITHOUT PRIOR APPROVAL BY UL.
HAZARDOUS (CLASSIFIED) LOCATION INTRINSICALLY SAFE FOR:
CLASS I DIV.1 GROUPS A,B,C,D
CLASS II DIV.1 GROUPS E,F,G
CLASS III DIV.1
CLASS I ZONE 0 AEx is IIC T4 Go
ZONE 20 AEx is IIIC 1135t Da
Ex is IIC T4 Go
Ex is IIIC T135’C Do
To= —20t TO 80t
ASSOCIATED APPARATUS
Voc (Vo)≤ 28V
Isc (lo)≤ 93mA
Po (Po) ≤ 0.651W
Ca (Co) ≥ 0.0381pF + C cable
La (Lo) ≥ 19.52pH + L cable
ZONE AND DIVISION ENTITY PARAMETERS ARE SHOWN AS: DIVISION (ZONE)
2| UPDATING STANDARDS FOR AGENCY PER ECR-048314| KAS 12-10-21| DATE 02-09-18|
NAME
IS626
I.S. CONTROL DRAWING
---|---|---|---|---
1| GENERAL REVISION AS REQUESTED BY UL PER ECR #43410| RBS 6-19-18| DWN BY AMS
0| INITIAL RELEASE ND-005145| WAS 02-28-18| CHKD DGH
NO.| CHANGES| BY/DATE| APPD LR
NOTICE: This drawing and the principles and elements of design embodied
therein are the exclu We property of DWYER INSTRUMENTS and ore not to be
communicated, disclosed, reproduced or used except os previously authorized in
writing by such compon and must not be submitted to outside parties for
examination without the written consent of said company.
CD = CRITICAL DIMENSION
STANDARD TOLERANCES UNLESS NOTED:
ALL DECIMAL DIMENSIONS ± .005
ALL ANGLES ± 1*
MATERIAL: ————-
FINISH: ————-
DWYER INSTRUMENTS, LLC.
MICHIGAN CITY, INDIANA 46360 U.S.A.
FR. NO. 001833-42
NOTES:
- SELECTED ASSOCIATED APPARATUS MUST BE THIRD PARTY LISTED AS PROVIDING INTRINSICALLY SAFE CIRCUITS FOR THE APPLICATION, AND NOT EXCEED THE ENTITY PARAMETERS LISTED ON THIS DRAWING.
- CAPACITANCE AND INDUCTANCE OF THE FIELD WIRING FROM THE INTRINSICALLY SAFE TRANSDUCER TO THE ASSOCIATED APPARATUS SHALL BE CALCULATED AND MUST INCLUDE THE SYSTEM CALCULATIONS AS SHOWN WITHIN THIS DRAWING. TOTAL CAPACITANCE IS CALCULATED BY ADDING BOTH (Cpeux CABLE) AND (Cum) TO Ci, WHERE (Cpeux CABLE) IS THE CAPACITANCE OF FACTORY WIRING PROVIDED WITH THE PBLTX AND (C(‘ ) IS CAPACITANCE OF ANY ADDITIONAL END USER CABLE THAT IS WIRED TO THE PBLTX. TOTAL INDUCTANCE IS CALCULATED BY ADDING BOTH (Lffi mu) AND (1.080 TO Li, WHERE (1.peux SEE) IS THE INDUCTANCE OF FACTORY WIRING PROVIDED WITH THE PBLTX AND (Levu) IS THE INDUCTANCE OF ANY ADDITIONAL END USER CABLE THAT IS WIRED TO THE PBLTX. WHEN PROVIDED WITH POLYURETHANE CABLE, THE CAPACITANCE (Cnux CA&E) IS 96 pF/FT (315pF/M) AND INDUCTANCE (Lpaix EASE) IS 346nH/FT (1.13551/4 WHEN PROVIDED WITH ETFE CABLE, THE CAPACITANCE (Cpeux mu) 162pF/Fr (532 pF/M) AND INDUCTANCE (LpBu cad IS 340 nH/FT (1.116pH/M). WHERE CABLE CAPACITANCE AND INDUCTANCE PER UNIT LENGTH ARE NOT KNOWN, THE CAPACITANCE OF 60pF/Ff (200pF/M) AND INDUCTANCE OF 0.2pH/FT (1.0 pH/M) MAY BE USED. PLEASE NOTE THAT THE PBLTX CABLE LENGTH IS SPECIFIED WITHIN THE NOMENCLATURE, SEE ITEM Deco’ FOR LENGTH AND ITEM ‘d’ FOR UNIT OF LENGTH. THIS LENGTH WILL NEED TO BE MULTIPLIED BY THE CORRECT PARAMETER (Cpeux CABLE) AND (Lpmix um) SPECIFIED ABOVE, BASED ON THE CABLE PROVIDED, SEE NOMENCLATURE ITEM y FOR THE DEVICE’S CABLE TYPE.
- THE ASSOCIATED APPARATUS MANUFACTURER’S INSTALLATION INSTRUCTIONS MUST BE FOLLOWED WHEN INSTALLING THE EQUIPMENT.
- WARNING — ALL FIELD WIRING SHALL BE SUITABLE FOR AN AMBIENT TEMPERATURE RANGE OF —20′ TO 80t.
- THE CABLE USED IN THIS DEVICE HAS A VENT TUBE. THEREFORE THE CABLE ATTACHED TO THE PBLTX SHALL BE TERMINATED IN THE HAZARDOUS AREA.
- NO REVISIONS TO THIS DRAWING WITHOUT PRIOR APPROVAL BY UL/DEMKO. 7. TRANSDUCER MUST BE INSTALLED IN ACCORDANCE TO IEC/EN 60079-14 OR ANY LOCAL INSTALLATION CODES/REQUIREMENTS.
ASSOCIATED
APPARATUS
Voc (Vo) ≤ 28V
Isc (10) ≤ 93mA
Po (Po) ≤ 0.651W
Ca (Co) ≥ 0.037pF + (Ceet.lx CABLE) + (Celiac)
La (Lo) ≥ 15 .92pH + (Lpeux emu) + (Lola”)
3| UPDATING STANDARDS FOR AGENCY PER ECR-048314| KAS 12-10-21| DATE 02-14-18|
NAME
PBLTX
I.S. CONTROL DRAWING ATEX/IECEx
---|---|---|---|---
2| ADDED ATEX CONFIGURATION PER ECR #045704| JEO 12-10-19| OWN BY AMS
1| GENERAL REVISION AS REQUESTED BY UL PER ECR #43410| RBS 6-20-18| CHKD DGH
0| INITIAL RELEASE ND-005145| AMS 02-28-18| APPD LR
NO.| CHANGES| BY/DATE|
NOTICE: This drawing and theprinciples and elements of design embodied
therein are the exclusive property of DWYER INSTRUMENTS and are not to be
communicated, disclosed, reproduced or used except as previously authorized in
writing by such company and must not be submitted to outside parties for
examination without the written consent of said company.
CD = CRITICAL DIMENSION
STANDARD TOLERANCES UNLESS NOTED:
ALL DECIMAL DIMENSIONS ± .005
ALL ANGLES ± 1*
MATERIAL: ————-
FINISH: ————-
DWYER INSTRUMENTS, LLC.
MICHIGAN CITY, INDIANA 46360 U.S.A.
FR. NO. 001833-47
DWYER INSTRUMENTS, LLC
P.O. BOX 373
MICHIGAN CITY, INDIANA 46360,
U.S.A.
Phone: 219-879-8000
Fax: 219-872-9057
www.dwyer-inst.com
E-mail: info@dwyermail.com
©Copyright 2022 Dwyer Instruments, LLC
Printed in U.S.A. 5/22
FR# 443549-00
Rev. 10
Documents / Resources
|
Mercoid Bulletin L-23 Series PBLTX Submersible Level
Transducer
[pdf] Instruction Manual
Bulletin L-23, Series PBLTX Submersible Level Transducer, Bulletin L-23 Series
PBLTX Submersible Level Transducer, PBLTX Submersible Level Transducer,
Submersible Level Transducer, Level Transducer, Transducer
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