Dwyer Instruments IEFB Series, Технические характеристики - Инструкция по установке и эксплуатации, Страница: 2 / 40

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RULER
(2 PLACES)
Safety Information
• Only qualified professionals equipped with the necessary required trade skills
should install, remove or service this product. Failure to follow the
proper installation procedures could lead to death or permanent injury.
• This product is intended to be installed in pressurized pipe applications. In this
event, product will be under pressure, caution should be taken to properly vent
system prior to installation or removal of the unit. Failure to do so could result in
equipment damage and/or serious bodily injury.
• Refer to Model Chart and Specifications for the applicable options to your unit.
• Ensure the unit is solidly grounded as stated in this bulletin.
• Depressurize and vent systems without Hot-tap valve prior to installation or
removal.
• Confirm the Series IEFB wetted material is chemically compatible with process
media prior to installation and use.
• Do not exceed maximum temperature and pressure specifications.
• Wear appropriate personal protective equipment during installation, removal and or
service of the unit.
• Altering the product construction may adversely affect product operation
and voids warranty.
OPERATING PRINCIPLE
• Per Faraday’s Law of electromagnetic induction, a voltage is induced in a
conductor when the fluid passes through a magnetic field, and the induced voltage
will be directly proportional to the velocity of the conductor.
• The Series IEFB Insertion Thermal Energy Meter generates pulsating magnetic
fields in the probe to induce a voltage into a conductive fluid flowing through the pipe.
• Electrodes located on the probe measure the induced voltage. Electronics and
firmware within the enclosure convert the voltage to velocity and flow rate while
using various outputs to convey the data to connected systems (i.e. display
devices, data acquisition systems, etc.).
• The IEFB energy calculations are based on flow and temperature measurements
while compensating for density and heat content.
INCLUDED WITH THE SERIES IEFB INSERTION THERMAL ENGERY METER
• Carefully unpack the shipping container of your new Series IEFB Insertion Thermal
Energy Meter and remove the following items:
• (1) Series IEFB insertion thermal energy meter
• (2) RTDs – Temperature measuring probes (not shown)
• (1) A-IEF-INGD installation alignment kit:
◦
(1) Alignment scale with captive thumbscrews
◦ (2) Alignment rods (not shown)
• (1) 3 mm Allen wrench (not shown, located in IEFB hanging tag)
• (2) Hot tap thermowells (model dependent)
• (1) Thermal paste (not shown)
CAUTION
Figure 2: Included with IEFB
Figure 1: Typical installation
Alignment
scale (1)
Thermowells (2)
Series IEFB
WARNING
ACCESSORIES
Model Description
Thermowells
A-IEFB-THW-4
A-IEFB-THW-6
A-IEFB-THW-4-BSPT
A-IEFB-THW-6-BSPT (2) 1/2˝ NPT, 4˝ (100 mm) thermowell for 4 to 7˝ (100 to
175 mm) pipe*
(2) 1/2˝ NPT, 6˝ (150 mm) thermowell for ≥8˝ (200 mm)
pipe**
(2) 1/2˝ BSPT, 4˝ (100 mm) thermowell for 4 to 7˝ (100
to 175 mm) pipe
(2) 1/2˝ BSPT, 6˝ (150 mm) thermowell for ≥8˝
(200 mm) pipe
Hot-Tap Valves
A-IEFB-VLV-BR-1
A-IEFB-VLV-SS-1
A-IEFB-VLV-BR-1-BSPT
A-IEFB-VLV-SS-1-BSPT (2) 1˝ NPT full port isolation valve brass for temperature
sensor with 1˝ branch outlet and 1˝ nipple
(2) 1˝ NPT full port isolation valve 316 SS for
temperature sensor with 1˝ branch outlet and 1˝ nipple
(2) 1˝ BSPT full port isolation valve brass for
temperature sensor with 1˝ branch outlet and 1˝ nipple
(2) 1˝ BSPT full port isolation valve 316 SS for
temperature sensor with 1˝ branch outlet and 1˝ nipple
*4˝ (100 mm) standard thermowells for 1-1/2˝ stack height: 4 to 7˝ (100 to 175 mm)
pipe size
**6˝ (150 mm) standard thermowells for 1-1/2˝ stack height: 8 to 10˝ (200 to 350
mm) pipe size. Ideal insertion depth is 3˝ (80 mm)
MODEL CHART
Example IEFB -L N -CND -R10 -LCD IEFB-LN-CND-R10-LCD
Series IEFB Insertion thermal energy meter
Accuracy L
G
S
F
I
E
T
H
Standard accuracy <10˝ (250 mm)
pipe; 1% FS
Standard accuracy >10˝ (250 mm)
pipe; 1% FS
Standard accuracy 4 to 36˝ (100 to
900 mm) pipe; 1% FS
High accuracy 4˝ (100 mm) pipe; 1%
of reading
High accuracy 6˝ (150 mm) pipe; 1%
of reading
High accuracy 8˝ (200 mm) pipe; 1%
of reading
High accuracy 10˝ (250 mm) pipe;
1% of reading
High accuracy 4 to 10˝ (100 to 250
mm) pipe; 1% of reading
Process
Connection
N
B
1˝ Male NPT
1˝ Male BSPT
Housing
Electrical
Connection
CND
PG
10
1/2˝ female NPT
PG 16 gland without cable
PG 16 gland with (2) 10´ (3 m) plenum
rated cables
Temperature
Sensors
T10
T20
T50
R10
R20
R50
(2) 10´ (3 m) PT temperature
sensors*
(2) 20´ (6 m) PT temperature
sensors*
(2) 50´ (15 m) PT temperature
sensors*
(2) 10´ (3 m) PT temperature sensors
with hot-tap thermowells
(2) 20´ (6 m) PT temperature sensors
with hot-tap thermowells
(2) 50´ (15 m) PT temperature
sensors with hot-tap thermowells
Options LCD
COM
NIST
FC
CC
Integral LCD
BACnet or Modbus ® communications
protocol
NIST traceable calibration
certification for flow and temperature
Factory calibration certification,
±0.5% of reading at selected velocity
Custom configuration (required input)
*Thermowells not included. Refer to thermowell accessory model chart to purchase
permanent thermowells.
OUTLET
INLET
LOAD
MAX. 12˝
MIN. 3˝