MODEL: 27HU-B
Head-mounted Two-wire Signal Conditioners
27-UNIT
[2] TEMPERATURE DRIFT
0: Standard (temp. coefficient 0.015 %/°C)
L: Ultra-low temperature drift
(temp. coefficient 0.002 %/°C typ. 0.005 %/°C max.)
2-WIRE UNIVERSAL TEMPERATURE TRANSMITTER
(HART communication, outdoor enclosure, explosion-proof)
Functions & Features
[3] LED INDICATOR
0: Without
• Universal input: DC mV, T/C, RTD and resistance
• High accuracy
1: With (SIL not available)
• HART communication
• Explosion-proof approval
[4] TERMINAL BLOCK
• 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
0: None (Output connection: Terminals on module)
(For TIIS, selectable only with ‘No indicator’ option.)
T: Incorporated
(Selectable only with the LED indicator option)
• Ultra-low temp. drift option (20 ppm/°C typ.)
• Stainless steel enclosure optional
[5] WIRING CONDUIT
Confirm selectable combinations of approval and wiring
conduit types in the table below.
0: G 1/2
1: 1/2 NPT
2: M20 × 1.5
3: PG 13.5
[6] MOUNTING BRACKET
0: Without
1: With
[7] OPTIONS
Enclosure Materials
MODEL: 27HU–B–[1][2][3][4][5][6][7]
Blank: Diecast aluminium enclosure
/S: Stainless steel enclosure
(TIIS flameproof approval not selectable)
ORDERING INFORMATION
• Code number: 27HU-B-[1][2][3][4][5][6][7]
Specify a code from below for each of [1] through [7].
(e.g. 27HU-B-0L1T01/S).
I SELECTABLE WIRING CONDUITS SPECIFIC TO EACH APPROVAL
ʻNʼ marked combinations are not selectable.
APPROVAL
Use Ordering Information Sheet (No. ESU-7652). 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 4.
0
3
4
8
WIRING CONDUIT
0
1
2
3
Y
Y
Y
Y
N
Y
N
Y
Y
N
Y
N
N
N
N
N
[1] SAFETY APPROVAL
Confirm selectable combinations of approval and wiring
conduit types in the table below.
0: None
RELATED PRODUCTS
• USB interface Bell202 modem (model: COP-HU)
Usable in ‘non-hazardous’ area only.
• Hand-held communicator
3: FM explosion-proof
4: ATEX flameproof
• PC configurator software (model: 27HUCFG)
Downloadable at M-System’s web site.
• Cable gland (model: BX-E-SXY)
8: TIIS flameproof (CE not available)
27HU-B SPECIFICATIONS
ES-7652 Rev.18 Page 1/7
http://www.m-system.co.jp/