27RS-1 [MSYSTEM]
Head-mounted Two-wire Signal Conditioners 27-UNIT;型号: | 27RS-1 |
厂家: | M-SYSTEM |
描述: | Head-mounted Two-wire Signal Conditioners 27-UNIT |
文件: | 总4页 (文件大小:160K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MODEL: 27RS
Head-mounted Two-wire Signal Conditioners
27-UNIT
RELATED PRODUCTS
• USB interface Bell202 modem (model: COP-HU)
Usable in ‘non-hazardous’ area only.
• PC configurator software (model: 27MCFG)
Downloadable at M-System’s web site.
RTD TRANSMITTER
(PC programmable)
Functions & Features
GENERAL SPECIFICATIONS
Construction: Sensor head-mounting
Connection: M3 screw terminals (torque 0.5 N·m)
Screw terminal: Nickel-plated brass
Housing material: Flame-resistant resin (black)
Isolation: Input to output
• Accepts direct input from an RTD and provides a standard
4 – 20 mA DC signal
• Suitable for Functional Safety applications up to SIL2
• I/O range programming via PC Configurator
• User’s temperature table can be used
• Self diagnostics
Function monitor LED: Input status and error status are
displayed by blinking mode.
User-configurable items: PC and the transmitter are
connected with the COP-HU.
• Input sensor type
• Low temperature drift
44 (1.73) DIA.
• Number of wires
• Input range
20.7
(.81)
• Burnout
• Output limits (Upper / Lower)
• Damping time (factory set to 0)
• Linearization
mm (inch)
• Output calibration
• Loop test output
MODEL: 27RS–[1][2]
INPUT SPECIFICATIONS
The input is factory set for use with Pt 100 (JIS ’97, IEC),
0 to 100°C.
ORDERING INFORMATION
• Code number: 27RS-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. 27RS-0/M)
■ RTD (2-wire, 3-wire or 4-wire)
Input resistance: ≥ 1 MΩ
Use Ordering Information Sheet (No. ESU-7653). 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.
Excitation: 0.2 mA
Allowable leadwire resistance: Max. 10 Ω per wire
Temperature Range
RTD
MIN. SPAN
USABLE RANGE
-200 to +850
-328 to +1562
-200 to +850
-328 to +1562
-200 to +850
-328 to +1562
-200 to +510
-328 to +950
10
18
10
18
10
18
10
18
°C
°F
°C
°F
°C
°F
°C
°F
Pt 100 (JIS '97, IEC)
[1] SAFETY APPROVAL
0: None
Pt 500
1: FM intrinsically safe
Pt 1000
(Option code /M is not selectable)
2: ATEX intrinsic safety
JPt 100 (JIS '89)
(Option code /M is not selectable)
OUTPUT SPECIFICATIONS
Output range: 4 – 20 mA DC
[2] OPTIONS
Function Monitor LED
Blank: Without
Operational range: 3.75 – 23 mA
Load resistance vs. supply voltage:
/M: With
Load Resistance (Ω) = (Supply Voltage (V) – 9 (V)) ÷ 0.023
(A) (including leadwire resistance)
Burnout: 3.75 – 3.8 mA or 21.5 – 23 mA
(factory set to 23 mA)
27RS SPECIFICATIONS
ES-7653 Rev.8 Page 1/4
http://www.m-system.co.jp/
MODEL: 27RS
Upper output limit proportional to the input:
20 – 21.5 mA (factory set to 21.5 mA)
Lower output limit proportional to the input:
3.8 – 4 mA (factory set to 3.8 mA)
Update time: 440 msec.
ATEX: Intrinsic safety
II 1G, Ex ia IIC; T4, T5 and T6
(EN 60079-0)
(EN 60079-11)
SAFETY PARAMETERS
Operating temperature
For ATEX / FM:
INSTALLATION
Supply voltage
• 9 – 35 V DC (non-approved)
T4: -40 to +80°C
T5: -40 to +60°C
T6: -40 to +45°C
Ex-data:
• 9 – 28 V DC (approved)
Operating temperature: -40 to +85°C (-40 to +185°F)
(See Safety Parameters for use in a hazardous location.)
Operating humidity: 0 to 95 %RH (non-condensing)
Mounting: Head-mounting (DIN type B head)
Weight: 50 g (1.76 oz)
• Output circuit
Ui (Vmax): 30 V DC
Ii (Imax): 96 mA DC
Pi (Pmax): 720 mW
Ci: 1 nF
PERFORMANCE
Li: 0 mH
Accuracy: ±0.15°C (±0.27°F), ±0.075 % of span or
±0.075 % of max. range, whichever is greater
(max. range = 0 % or 100 % value, absolute value of
whichever is greater.)
• Sensor circuit
Uo (Voc): 30 V DC
Io (Isc): 24 mA DC
Po: 180 mW
Temp. coefficient: 0.0075 %/°C (0.004 %/°F)
Response time: ≤ 1 sec. (2- or 3-wire; 0 – 90 %) or
≤ 2 sec. (4-wire; 0 – 90 %) with damping time set to 0
Burnout response time: ≤ 2 sec.
Co (Ca): 50 nF
Lo (La): 40 mH
Supply voltage effect: ±0.01 % of span/V
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @1 minute (input to output)
Safety integrity level according to IEC 61508: Suitable for
use in a safety instrumented system up to SIL2 (together
with sensor) if appropriate safety instructions are observed.
Consult M-System.
STANDARDS & APPROVALS
EU conformity:
ATEX Directive
Ex ia EN 60079-11
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 I, Zone 0, AEx ia IIC (US)
Class I, Zone 0, Ex ia IIC (Canada)
T4, T5 and T6
(Class 3610, ANSI/ISA 60079-11,
CAN/CSA-C22.2 No. 157,
CAN/CSA-C22.2 No. 60079-11)
27RS SPECIFICATIONS
ES-7653 Rev.8 Page 2/4
http://www.m-system.co.jp/
MODEL: 27RS
FUNCTION MONITOR LED (option /M)
Function
Monitor LED
+
–
1
4
2
3
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)
44 (1.73) dia.
33 (1.30)
20.7 (.81)
19.5 (.77)
6 (.24) dia.
16.5 (.65)
12.7 (.5)
2–4.5 (.18) dia.
MTG HOLE
+
–
1
4
7.6 (.30) dia.
2
3
6–M3 SCREW
MOUNTING REQUIREMENTS unit: mm (inch)
33 (1.30)
2–M4 SCREW
The screws are to be provided by the customer.
27RS SPECIFICATIONS
ES-7653 Rev.8 Page 3/4
http://www.m-system.co.jp/
MODEL: 27RS
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Hazardous Location Non-Hazardous Location
2
Comm.
Circuit
*
FUNCTION
MONITOR
LED
Isolation
24V DC
LOAD
Input
Computation
Output
Computation
Output
Driver
+
–
4
3
2
1
3
*
Low Drift
Amplifier
OUTPUT
1
4 – 20mA DC
*
INPUT
Safety Barrier *4
*1. Input Connection Examples
■ RTD & RESISTANCE
• Two-wire
• Three-wire
• Four-wire
4
3
2
1
4
3
2
1
4
3
2
1
B
B
B
B
B
A
A
A
A
*2. Option /M
*3. Limited to 250 – 500Ω when using the communication to configure the module.
*4. A safety barrier must be installed for the intrinsic safety.
The safety barrier must meet the Ex-data of this unit and must be approved for the hazardous location.
Specifications are subject to change without notice.
27RS SPECIFICATIONS
ES-7653 Rev.8 Page 4/4
http://www.m-system.co.jp/
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