27HU-0/L [MSYSTEM]

Head-mounted Two-wire Signal Conditioners 27-UNIT;


型号：	27HU-0/L
厂家：	M-SYSTEM
描述：	Head-mounted Two-wire Signal Conditioners 27-UNIT
文件：	总5页 (文件大小：156K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MODEL: 27HU

Head-mounted Two-wire Signal Conditioners

27-UNIT

RELATED PRODUCTS

• USB interface Bell202 modem (model: COP-HU)

Usable in ‘non-hazardous’ area only.

• Hand-held communicator

2-WIRE UNIVERSAL TEMPERATURE TRANSMITTER

(HART communication)

• PC configurator software (model: 27HUCFG)

Downloadable at M-System’s web site.

Functions & Features

• Universal input: DC mV, T/C, RTD and resistance

• High accuracy

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

• HART communication

• Intrinsically safe approval

• Suitable for Functional Safety applications up to SIL2

• 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

User-configurable items:

• Input sensor type and numbers

• Number of wires (RTD & resistance)

• Input range (inverted range selectable)

• Burnout

• Ultra-low temp. drift option (20 ppm/°C typ.)

• CE marking (conforms to ATEX and EMC)

• Output limits (Upper / Lower)

• Damping time (factory set to 0)

• Cold junction compensation (T/C; internal or external

sensor selectable)

44 (1.73) DIA.

• Linearization

20.7

(.81)

• Sensor calibration

• Output calibration

mm (inch)

• HART communication mode

Refer to the HART setup manual or the PC configurator

users manual for the detail.

MODEL: 27HU–[1][2]

HART COMMUNICATION

Protocol: HART communication protocol

HART address range: 0 – 15 (factory set to 0)

Transmission speed: 1200 bps

ORDERING INFORMATION

• Code number: 27HU-[1][2]

Specify a code from below for each of [1] and [2].

(e.g. 27HU-2/L)

Digital current: Approx. 1 mAp-p when communicating

Character format: 1 Start Bit, 8 Data Bits, 1 Odd Parity Bit,

1 Stop Bit

Use Ordering Information Sheet (No. ESU-7651). 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.

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.

[1] SAFETY APPROVAL

0: None

1: FM intrinsically safe

2: ATEX intrinsic safety

INPUT SPECIFICATIONS

The input is factory set for use with K thermocouple, single

input, 0 to 100°C, internal CJC sensor.

See Table 1 for the available input type, the minimum span

and the maximum range.

[2] OPTIONS

Temperature Drift

Blank: Standard (temp. coefficient 0.015%/°C)

/L: Ultra-low temperature drift

■ DC mV (dual input available)

Input resistance: ≥ 1 MΩ

(temp. coefficient 0.002%/°C typ., 0.005%/°C max.)

■ Thermocouple (dual input available)

27HU SPECIFICATIONS

ES-7651 Rev.17 Page 1/5

http://www.m-system.co.jp/

MODEL: 27HU

Input resistance: ≥ 1 MΩ

STANDARDS & APPROVALS

EU conformity:

Burnout sensing: 33 μA

External CJC sensor type: Pt 100

■ RTD (2-wire, 3-wire or 4-wire)

Input resistance: ≥ 1 MΩ

ATEX Directive

Ex ia EN 60079-11

EMC Directive

Excitation: 0.2 mA

EN 61326-1

Allowable leadwire resistance: Max. 10 Ω per wire

■ Resistance (2-wire, 3-wire or 4-wire)

Input resistance: ≥ 1 MΩ

RoHS Directive

EN 50581

Safety approval:

Excitation: 0.2 mA

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

Allowable leadwire resistance: Max. 10 Ω per wire

OUTPUT SPECIFICATIONS

Output range: 4 – 20 mA DC

(Class 3610, ANSI/ISA 60079-11,

CAN/CSA-C22.2 No. 157,

CAN/CSA-C22.2 No. 60079-11)

ATEX: Intrinsic safety

II 1G, Ex ia IIC; T4, T5 and T6

(EN 60079-0)

Operational range: 3.75 – 23 mA

Load resistance vs. supply voltage:

Load Resistance (Ω) = (Supply Voltage (V) – 8 (V))

÷ 0.023 (A)

(including leadwire resistance)

Burnout: 3.75 – 3.8 mA or 21.5 – 23 mA

(factory set to 23 mA)

(EN 60079-11)

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)

SAFETY PARAMETERS

Operating temperature

For ATEX / FM:

Update time: 440 msec. (660 msec. with dual input)

Output characteristics for dual input:

Average or Differential selectable

T4: -40 to +80°C

T5: -40 to +60°C

T6: -40 to +45°C

Ex-data:

INSTALLATION

• Output circuit

Ui (Vmax): 30 V DC

Ii (Imax): 96 mA DC

Pi (Pmax): 720 mW

Ci: 1 nF

Supply voltage

• 8 – 35 V DC (non-approved)

• 8 – 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)

Li: 0 mH

• Sensor circuit

Uo (Voc): 30 V DC

Io (Isc): 24 mA DC

Po: 180 mW

PERFORMANCE

Accuracy: See Table 1.

Co (Ca): 50 nF

Lo (La): 40 mH

Cold junction compensation accuracy: ±0.5°C (±0.9°F) with

internal CJC sensor

Response time: ≤ 2 sec. (0 – 90 %) with damping time

set to 0 and when not communicating via HART.

Supply voltage effect: ±0.005 % 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.

27HU SPECIFICATIONS

ES-7651 Rev.17 Page 2/5

http://www.m-system.co.jp/

MODEL: 27HU

INPUT TYPE, RANGE & ACCURACY

TEMPERATURE DRIFT

MINIMUM MAXIMUM ACCURACY

INPUT TYPE

STANDARD

DRIFT *²

ULTRA-LOW

DRIFT *³

SAPN

SPAN

DC mV

Resistance

°C

4 mV

25 Ω

-100 to +800 mV

0 to 4 kΩ

°F

10 μV

0.1 Ω

1.5 μV/°C

15 mΩ /°C

0.5 μV/°C

5 mΩ /°C

TEMPERATURE DRIFT

Thermocouple

MINIMUM MAXIMUM ACCURACY MINIMUM MAXIMUM ACCURACY STANDARD

DRIFT *²

ULTRA-LOW

DRIFT *³

SAPN

RENGE

SAPN

RENGE

K (CA)

E (CRC)

J (IC)

-180 to +1372

-100 to +1000

-100 to +1200

0.5

-292 to +2501

-148 to +1832

-148 to +2192

0.9

0.075°C/°C

0.025°C/°C

T (CC)

B (RH)

-200 to +400

400 to 1820

0.5

-328 to +752

752 to 3308

0.9

1.8

0.075°C/°C

0.3°C/°C

0.025°C/°C

0.1°C/°C

100

180

-50 to +1760

-58 to +3200

100

-50 to +1760

0 to 2300

180

-58 to +3200

32 to 4172

1.8

0.3°C/°C

0.1°C/°C

C (WRe 5-26)

D (WRe 3-25)

-180 to +1300

-200 to +600

-100 to +900

0.5

-292 to +2372

-328 to +1112

-148 to +1652

0.9

0.075°C/°C

0.025°C/°C

°C

°F

TEMPERATURE DRIFT

RTD

MINIMUM MAXIMUM ACCURACY MINIMUM MAXIMUM ACCURACY STANDARD

ULTRA-LOW

DRIFT *³

DRIFT *²

SAPN

RENGE

SAPN

RENGE

Pt 100 (JIS '97, IEC)

Pt 200

Pt 500

-200 to +850

0.1

-328 to +1562

0.18

0.015°C/°C

0.005°C/°C

Pt 1000

JPt 100 (JIS '89)

Ni 100 (DIN 43760 '87)

-200 to +850

-200 to +510

-60 to +250

0.1

0.2

-328 to +1562

-328 to +950

-76 to +482

0.18

0.36

0.015°C/°C

0.005°C/°C

*1. DC mV:

Or 0.05 ꢀ oꢁ aꢂsolute range (greater oꢁ 0 ꢀ and 100 ꢀ range values), whichever is greater.

Or 0.2 ꢀ oꢁ aꢂsolute negative range ꢁor two inputs including negative ranges, whichever is greater.

Or 0.05 ꢀ oꢁ aꢂsolute range (greater oꢁ 0 ꢀ and 100 ꢀ range values), whichever is greater.

Resistance:

Thermocouple: Or 0.05 ꢀ oꢁ span, whichever is greater. Add cold junction compensation error.

RTD: Or 0.05 ꢀ oꢁ maꢃ. range (greater oꢁ 0 ꢀ and 100 ꢀ range values converted into °C), whichever is greater.

(For 2- or 3-wire RTD, the value is valid ꢂy the sensor caliꢂration aꢁter wiring is complete.)

*2. Or 0.015 ꢀ oꢁ aꢂsolute range/°C (greater oꢁ 0 ꢀ and 100 ꢀ range values), whichever is greater.

*3. Or 0.005 ꢀ oꢁ aꢂsolute range/°C (greater oꢁ 0 ꢀ and 100 ꢀ range values), whichever is greater.

*4. Conꢁormance range: 50 to 1760°C or 122 to 3200°F

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

–

7.6 (.30) dia.

6–M3 SCREW

27HU SPECIFICATIONS

ES-7651 Rev.17 Page 3/5

http://www.m-system.co.jp/

MODEL: 27HU

MOUNTING REQUIREMENTS unit: mm (inch)

33 (1.30)

2–M4 SCREW

The screws are to be provided by the customer.

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

Hazardous Location Non-Hazardous Location

HART

Comm.

Isolation

24V DC

Input

Computation

Output

Computation

Output

Driver

–

Low Drift

Amplifier

OUTPUT LOAD

4 – 20mA DC

INPUT *¹

Safety Barrier *³

CJC

Sensor

*1. Input Connection Examples

■ DC MILLIVOLT

■ THERMOCOUPLE

• Internal CJC

■ RTD & RESISTANCE

• Two-wire

comp. leadwire

–

INPUT

• Two Inputs

• External CJC

• Three-wire

–

comp. leadwire

–

INPUT 2

INPUT 1

• Two Inputs, Internal CJC

• Four-wire

–

SENSOR 2

SENSOR 1

–

comp. leadwire

• Two Inputs, External CJC

–

SENSOR 2

SENSOR 1

–

comp. leadwire

*2. Limited to 250 – 1100Ω for HART communication.

*3. 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.

27HU SPECIFICATIONS

ES-7651 Rev.17 Page 4/5

http://www.m-system.co.jp/

MODEL: 27HU

Specifications are subject to change without notice.

27HU SPECIFICATIONS

ES-7651 Rev.17 Page 5/5

http://www.m-system.co.jp/

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