Dwyer PBLT2 Series Submersible Level Transmitter Installation Guide
- June 4, 2024
- Dwyer
Table of Contents
PBLT2 Series Submersible Level Transmitter
Installation Guide
Specifications – Installation and Operating Instructions
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. The 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 Div. 1 Group E,F, G
Class III Div. 1
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: EU Type Certificate NO. DEMKO 18 ATEX 2080
ATEX STANDARDS: EN 60079-0, EN 60079-11
ATEX CLASSIFICATION: 2813 II 1 G Ex ia IIC T4 Ga (-20°C ≤ Tamb ≤ 80°C
(ETFE Cable)) (-20°C ≤ Tamb ≤ 65°C (Polyurethane Cable))
2813 II 1 D 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.
IECEx CLASSIFICATION: Ex ia IIC T4 Ga (-20°C ≤ Tamb ≤ 80°C (ETFE Cable))
(-20°C ≤ Tamb ≤ 65°C (Polyurethane Cable))
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 60079-0, EN 60079-11
UKCA Ex CLASSIFICATION: II 1 G Ex ia IIC T4 Ga (-20°C ≤ Tamb ≤80°C
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 the tank below the 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.
Use with approved safety barriers using entity evaluation.
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 angles, 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 a minimum current capability of 40 mA DC (per transducer) is required to power the control loop. See Figure A for the 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:
A shielded cable is recommended for control loop wiring.
The black wire is negative [-] and the red wire is positive [+] in Figure B.
MAINTENANCE
After the 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 the 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 INCLUDE THE SYSTEM CALCULATIONS AS SHOWN WITHIN THIS DRAWING. TOTAL CAPACITANCE IS CALCULATED BY ADDING BOTH (C PBLTX CABLE) AND (CcABLE) TO Ci, WHERE (CPBLTX CABLE) IS THE CAPACITANCE OF FACTORY WIRING PROVIDED WITH THE PBLTX AND (CcABLE) IS CAPACITANCE OF ANY ADDITIONAL END USER CABLE THAT IS WIRED TO THE PBLTX. TOTAL INDUCTANCE IS CALCULATED BY ADDING BOTH (I-PBax CABLE) AND (LIABLE) TO Li, WHERE (LPBLTX CABLE) IS THE INDUCTANCE OF FACTORY WIRING PROVIDED WITH THE PBLTX AND (LcABLE) IS THE INDUCTANCE OF ANY ADDITIONAL END USER CABLE THAT IS WIRED TO THE PBLTX. WHEN PROVIDED WITH POLYURETHANE CABLE, THE CAPACITANCE (C’Peux CABLE) IS 96 pF/FT (315pFX AND INDUCTANCE (LPBLTX CABLE) IS 346nH/FT (1.135pF/M). WHEN PROVIDED WITH ETFE CABLE, THE CAPACITANCE (CPBLJX CABLE) 162pF/FT (532 pF/M) AND INDUCTANCE (4)BLx CABLE) IS 340 nH/FT (1.116,uH/M). WHERE CABLE CAPACITANCE AND INDUCTANCE PER UNIT LENGTH ARE NOT KNOWN, THE CAPACITANCE OF 60pF/FT (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 ‘ccc’ FOR LENGTH AND ITEM ‘d’ FOR UNIT OF LENGTH. THIS LENGTH WILL NEED TO BE MULTIPLIED BY THE CORRECT PARAMETER (Cpeux CABLE) AND (-Peurx CABLE) SPECIFIED ABOVE, BASED ON THE CABLE PROVIDED, SEE NOMENCLATURE ITEM ‘e’ FOR THE DEVICE’S CABLE TYPE.
- 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.
- 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.
ASSOCIATED APPARATUS
VOC (Vo) S 28V
Is (lo) S 93mA
Po (Po) S 0.651W
Ca (Co) .? 0.037pF + (CPBLTX CABLE) + (CCABLE)
La (Lo)? 15.92,uH + (I-PEux CABLE) + (-CABLE)
ZONE AND DIVISION ENTITY PARAMETERS ARE
SHOWN AS: DIVISION (ZONE)
CD) = CRITICAL DIMENSION
STANDARD TOLERANCES UNLESS NOTED:
ALL DECIMAL DIMENSIONS ± .005
ALL ANGLES ± 1
| | | DATE
02-12-18| NAME
PBLTX
I.S. CONTROL DRAWING
ACAD2002| MATERIAL
---|---|---|---|---|---
2| UPDATING STANDARDS FOR AGENCY PER ECR-048314| KAS
12-10-21| DWN BY
AMS| FINISH
1| GENERAL REVISION AS REQUESTED BY UL PER ECR #43410| RBS
6-20-18| CHKD
DGH| DWYER INSTRUMENTS, INC.
MICHIGAN CITY,
INDIANA 46360 U.S.A.
0| INITIAL RELEASE ND-005145| AIMS
02-28-18| FR. NO.
001833-44
NO.| CHANGES| BY/DATE| AppD
LR
NOTICE: This drawing and the principles and elements of design embodied
therein are the exclusive property of DWYER INSTRUMENTS, INC. and are not to
be communicated, disclosed, reproduced, or used except as previously
authorized in writing by such corporation and must not be submitted to outside
sorties for examination without the written consent of the said corporation.
(3)
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 (Cpeiix CABLE) AND (Coal) TO Ci, WHERE (CpBux CABLE) IS THE CAPACITANCE OF FACTORY WIRING PROVIDED WITH THE PBLTX AND (Coal) IS CAPACITANCE OF ANY ADDITIONAL END USER CABLE THAT IS WIRED TO THE PBLTX. TOTAL INDUCTANCE IS CALCULATED BY ADDING BOTH (LpBux CABLE) AND (Lam“) TO Li, WHERE (LpBux CABLE) IS THE INDUCTANCE OF FACTORY WIRING PROVIDED WITH THE PBLTX AND (Lam) IS THE INDUCTANCE OF ANY ADDITIONAL END USER CABLE THAT IS WIRED TO THE WHEN PROVIDED WITH POLYURETHANE CABLE, THE CAPACITANCE (4BLI-x CABLE) IS 96 pF/FT (315pF/M) AND INDUCTANCE (Lpeux CABLE) IS 346nH/F (1.135pF/M). WHEN PROVIDED WITH ETFE CABLE, THE CAPACITANCE (CcBox cABLE) 162pF/FT (532 pF/M) AND INDUCTANCE (LPBLTX CABLE) IS 340 nH/FT (1.116pH/M). WHERE CABLE CAPACITANCE AND INDUCTANCE PER UNIT LENGTH ARE NOT KNOWN, THE CAPACITANCE OF 60pF/FT (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 lac’ FOR LENGTH AND ITEM ‘d’ FOR UNIT OF LENGTH. THIS LENGTH WILL NEED TO BE MULTIPLIED BY THE CORRECT PARAMETER (CPBax CABLE) AND (NLM CABLE) SPECIFIED ABOVE, BASED ON THE CABLE PROVIDED, SEE NOMENCLATURE ITEM ‘e’ 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 80’C.
- 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.
- THE TRANSDUCER MUST BE INSTALLED IN ACCORDANCE WITH 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 + (CPBLTX CABLE) + (CCABLE) La
(Lo) ? 15.92pH + (LPBLTX CABLE) + (LCABLE)
CD) = CRITICAL DIMENSION
STANDARD TOLERANCES UNLESS NOTED:
ALL DECIMAL DIMENSIONS ± .005
ALL ANGLES ± 1
3| UPDATING STANDARDS FOR AGENCY PER ECR-048314| | DATE
02-12- 18| NAME
PBLTX I.S. CONTROL DRAWING
ATEX/IECEX| MATERIAL
---|---|---|---|---|---
2| ADDED ATEX CONFIGURATION PER ECR #045704| KAS
12-10-21| DWN BY
AMS| FINISH
1| GENERAL REVISION AS REQUESTED BY UL PER ECR 443410| RBS
6-20-18| CHKD
DGH| DWYER INSTRUMENTS, INC.
MICHIGAN CITY,
INDIANA 46360 U.S.A.
0| INITIAL RELEASE ND-005145| AIMS
02-28-18| 001833-4 FR. NO.
NO.| CHANGES| BY/DATE| AppD
LR
NOTICE: This drawing and the principles 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
DWYER INSTRUMENTS, LLC
Postfach 373 • MICHIGAN CITY, INDIANA 46360, USA
Tel.: +1-219-879-8000
Fax: +1-219-872-9057
www.dwyer-inst.com
e-mail: info@dwyermail.com
References
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