·Some details are not shown. Please refer to specification sheets for all information.
B6U-B
Field-mounted Two-wire Signal Conditioners
B6-UNIT
2-WIRE UNIVERSAL TEMPERATURE TRANSMITTER
(HART communication, intrinsically safe/explosion-proof)
Functions & Features
• Universal input: mV, V, T/C, RTD, resistance and potentiometer
• High accuracy
• HART communication
• Intrinsically safe and explosion-proof approval
• Optional stainless steel enclosure
• Programming via hand-held communicator or via PC
• A wide variety of T/C and RTD types
• User’s temperature table can be used
• Self diagnostics
• Input-output isolated
MODEL: B6U–B–[1][2][3][4][5]
ORDERING INFORMATION
・Specify code number: B6U-B-[1][2][3][4][5]
Specify a code from below for each [1] through [5].
(e.g. B6U-B-4121).
Use Ordering Information Sheet (No. ESU-7451). Factory
standard setting will be used if not otherwise specified.
Specify the country in which the product is to be used with
the Safety Approval code 2 or 4.
[1] SAFETY APPROVAL
0
: None
1
: FM intrinsically safe
2
: IECEx/ATEX intrinsic safety
3
: FM explosion-proof
4
: IECEx/ATEX flameproof
5
: FM nonincendive
7
: TIIS intrinsic safety (CE not available)
8
: TIIS flameproof (CE not available)
Confirm selectable combinations of approval and wiring conduit types in the table.
[2] LCD DISPLAY
0:
Without
1:
With
[3] WIRING CONDUIT
0
: G 1/2
1
: 1/2 NPT
2
: M20 × 1.5
3
: PG 13.5
Confirm selectable combinations of approval and wiring conduit types in the table.
[4] MOUNTING BRACKET
0
: Without
1
: With
[5] OPTIONS
Enclosure Materials
Blank
: Diecast aluminium enclosure
/S
: Stainless steel enclosure
(TIIS flameproof approval not selectable)
RELATED PRODUCTS
• USB interface Bell202 modem (model: COP-HU)
Usable in ‘non-hazardous’ area only.
• Hand-held communicator
• AMS (version 6.0 or higher)
• PC configurator software (model: B6UCFG)
Downloadable at M-System’s web site.
• Cable gland (model: BX-E-SXY)
PACKAGE INCLUDES...
•
Cable gland:
Two provided for TIIS flameproof type
Model No.:
BX-E-SXY
Cable entries:
Elastomeric sealing rings
Wiring conduit size:
G 1/2
Material:
Chrome-plated brass (entry)
CR (sealing ring)
Applicable wire size:
8 – 12 dia.
•
Mounting bracket assembly
(option)
:
Stainless steel 304
Applicable pipe
: 1 1/2” min.; 2” max.
Mounting screws
(4)
GENERAL SPECIFICATIONS
Degree of protection
: NEMA 4X, IP66/IP67
Wiring conduit:
See ‘Ordering information.’
Electrical connection:
M3.5 screw terminals (torque 0.8 N·m)
Materials
Transmitter housing:
Flame-resistant resin (black)
Screw terminals:
Nickel-plated brass
Enclosure:
Diecast aluminium standard; stainless steel
casting optional (equivalent to type 316);
silver color, epoxy resin coated
Isolation
: Input to output to outdoor enclosure
Burnout (T/C, RTD, Potentiometer & Resistance):
Upscale, downscale or no burnout selectable (standard: upscale);
Also detects wire breakdown and overrange input exceeding the electrical design limit for DC input.
Cold Junction Compensation (thermocouple input)
: CJC sensor incorporated
User-configurable items:
· Input sensor type
· Number of wires (RTD & resistance)
· Input range
· Inverted output
· Burnout
· Damping time (via HART only, standard: 0)
· Sensor calibration (via HART only)
· Output calibration
· Special linearization data (via HART only)
· HART communication mode
HART COMMUNICATION
Protocol
: HART communication protocol
HART address range
: 0 – 15 (factory set to 0)
Transmission speed
: 1200 bps
Digital current
: Approx. 1 mAp-p when communicating
Character format
: 1 Start Bit, 8 Data Bits, 1 Odd Parity Bit,
1 Stop Bit
Distance
: 1.5 km (0.9 miles)
HART communication mode
: Master-Slave Mode and Burst Mode (factory set to Master-Slave)
HART network mode
: Point-to-Point Mode and Multi-drop Mode; automatically set to Multi-drop Mode when the address is set to other than 0.
LCD DISPLAY (option)
Features
:
· Indicates and setts input signal, engineering unit and transmitter status.
· Removable while the module is powered.
Display size
: 36 × 20 mm (1.41” × 0.79”)
Characters
Color
: Black
Format
: 2 rows of 5 alphanumeric characters;
Top: 7.4 mm high
Bottom: 6.5 mm high
6 status characters, 1.9 mm high
Display range
: -99999 to 99999
Decimal point
: In top row
Read rate
: 150 msec.
Back light
: None
INPUT SPECIFICATIONS
The input is factory set for use with K thermocouple, 0 to 100°C.
See Table 1 for the available input type, the minimum span and the maximum range.
■ DC mV & V
Input resistance:
≥ 1 MΩ
■
Thermocouple
Input resistance:
≥ 1 MΩ
Burnout sensing:
130 nA ±10 %
■ RTD
(2-wire, 3-wire or 4-wire)
Input resistance:
≥ 1 MΩ
Excitation:
0.2 mA ±10 %
Allowable leadwire resistance:
Max. 20 Ω per wire
■
Resistance
(2-wire, 3-wire or 4-wire)
Excitation:
0.2 mA ±10 %
Allowable leadwire resistance:
Max. 20 Ω per wire
■ Potentiometer
Excitation:
0.2 mA ±10%
Allowable leadwire resistance:
Max. 20 Ω per wire
OUTPUT SPECIFICATIONS
Output range:
4 – 20 mA DC
Operational range:
3.8 – 21.6 mA
Load resistance vs. supply voltage:
Load Resistance (Ω) = (Supply Voltage (V) – 12 (V))
÷ 0.024 (A) (including leadwire resistance)
INSTALLATION
Supply voltage
· 12 – 42 V DC (non-approved)
· 12 – 28 V DC (approved)
Operating temperature:
-40 to +85°C (-40 to 185°F) Electronics
(See Safety Parameters for use in a hazardous location.)
-30 to +80°C (-22 to 185°F) Display (full visibility)
Weight
:
· Unit
Approx. 1.3 kg (2.9 lb), aluminium
Approx. 4.0 kg (8.8 lb), stainless steel
Approx. 2.0 kg (4.4 lb), TIIS flameproof
· Mounting bracket assembly (option)
Approx. 0.78 kg (1.72 lb)
PERFORMANCE
Accuracy
: See Table 1 and ‘Explanations of Terms.’
Cold junction compensation error:
±0.5°C or ±0.9°F
Temp. coefficient
: ±0.015 %/°C (±0.008 %/°F) of max. span at -5 to +55°C [23 to 131°F]
Start-up time
: Approx. 8 sec.
Response time
: ≤ 2 sec. (0 – 90 %) with damping time
set to 0 and when not communicating via HART.
Supply voltage effect
: ±0.003 % × [Output Span] / 1 V
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1500 V AC @1 minute
(input to output to outdoor enclosure)
EXPLANATIONS OF TERMS
■
ACCURACY
This transmitter’s accuracy is theoretically defined as the addition of A/D and D/A conversion errors:
Accuracy = A/D Conversion Error + D/A Conversion Error
The A/D conversion error means that measured as HART signal which is A/D converted from the analog input signal.
The D/A conversion error of this transmitter is relatively very small so that it does not really affect the unit’s overall performance.
The “Accuracies” given in Table 1 therefore equals the A/D conversion error.
The temperature drift (coefficient) or the cold junction compensation error is not included in the “Accuracy.”
■
CALCULATION EXAMPLES OF OVERALL ACCURACY IN %
•
DC Voltage
1) 0 – 200 mV
Absolute value accuracy (Table 1): 40 μV
40 μV ÷ 200000 μV × 100 = 0.02 % < 0.1 %
➠ Overall accuracy = ±0.1% of span
2) 0 – 4 mV
Absolute value accuracy (Table 1): 10 μV
10 μV ÷ 4000 μV × 100 = 0.25 % > 0.1%
➠ Overall accuracy = ±0.25 % of span
•
Thermocouple
1) K thermocouple, 0 – 1000°C
Absolute value accuracy (Table 1): 0.25°C
0.1% × 1000°C = 1°C > 0.25°C
CJC error (0.5°C) added: 1 + 0.5 = 1.5°C
1.5°C ÷ 1000°C × 100 = 0.15 %
➠ Overall accuracy including CJC error = ±0.15 % of span
2) K thermocouple, 50 – 150°C
Absolute value accuracy (Table 1): 0.25°C
0.1 % × (150 – 50)°C = 0.1°C < 0.25°C
CJC error (0.5°C) added: 0.25 + 0.5 = 0.75°C
0.75°C ÷ (150 – 50)°C × 100 = 0.75 %
➠ Overall accuracy including CJC error = ±0.75 % of span
•
RTD
1) Pt 100, -200 – 800°C
Absolute value accuracy (Table 1): 0.15°C
0.15°C ÷ (800 – -200)°C × 100 = 0.015 % < 0.1 %
➠ Overall accuracy = ±0.1 % of span
2) Pt 100, 0 – 100°C
Absolute value accuracy (Table 1): 0.15°C
0.15°C ÷ 100°C × 100 = 0.15 % > 0.1 %
➠ Overall accuracy = ±0.15 % of span
STANDARDS & APPROVALS
EU conformity
:
ATEX Directive
Ex ia EN 60079-11 (for ATEX intrinsic safety)
Ex d EN 60079-1 (for ATEX flameproof)
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
EN 50581
Safety approval
:
FM: Intrinsically safe
Class I, Division 1, Groups A, B, C and D
Class II, Division 1, Groups E, F and G
Class III, Division 1
Class I, Zone 0, AEx ia IIC
T4, T5 and T6
(Class 3600)
(Class 3610)
(ANSI/ISA 60079-0)
(ANSI/ISA 60079-11)
FM: Explosion-proof and Dust-ignition proof
Class I, Division 1, Groups B, C and D
Class II, Division 1, Groups E, F and G
Class III, Division 1
T6
(Class 3600)
(Class 3615)
FM: Nonincendive
Class I, Division 2, Groups A, B, C, and D
Class II, Division 2, Groups F and G
Class III, Division 1
Class I, Zone 2, Group IIC
T4, T5 and T6
(Class 3600)
(Class 3611)
IECEx intrinsic safety
EX ia IIC T4, T5 and T6 Ga
(IEC 60079-0)
(IEC 60079-11)
IECEx flameproof
EX d IIC; T4, T5 and T6 Gb
(IEC 60079-0)
(IEC 60079-1)
KOSHA: flameproof (Occupational Safety and Health Act)
Ex d IIC T6
(Only available for Model: B6U-B-41****)
TIIS: Intrinsic safety
Ex ia IIC T5 X
TIIS: Flameproof
Ex d IIC T5
SAFETY PARAMETERS
Operating temperature
For IECEx, ATEX and FM
:
T4: -40 to +80°C
T5: -40 to +65°C
T6: -40 to +50°C (-40 to +80°C for FM explosion-proof)
For TIIS
:
T5: -20 to +60°C
Ex-data
:
• Output circuit
Ui (Vmax): 30 V
Ii (Imax): 96 mA
Pi (Pmax): 720 mW
Ci: 0 μF (TIIS Intrinsic Safety: ‘Negligible value')
Li: 0 mH (TIIS Intrinsic Safety: ‘Negligible value')
• Sensor circuit
Uo (Voc): 6.4 V (TIIS Intrinsic Safety: 6.0 V)
Io (Isc): 30 mA
Po: 48 mW
Co (Ca): 20 μF
Lo (La): 10 mH
INPUT TYPE, RANGE & ACCURACY
DIMENSIONS unit: mm (inch)
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
MG Co., Ltd.