User guide

TECHNICAL DATA 6
31
SMARTSENS PH 8570
www.krohne.com11/2013 - 4002544902 - MA SMARTSENS PH 8570 R02 en
Communication
pH range 0...14 pH
Resolution pH range 0.02 pH
Output signal 4...20 mA (passive)
Output resolution 20 µA
Field communication
HART
®
7 - FSK 1200 physical layer definition on top of the current loop
Filter adjustable 1...60 seconds
Electrical connections
Power supply 15...30 VDC loop powered
Measuring range
4...20 mA + HART
®
protocol
Load Minimum 0 Ω; maximum R
L
= ((U
ext.
- 15 VDC) / 22 mA)
Error signal Acc. to NAMUR NE 43
Upper value: ≥ 21.0 mA
HART
®
HART
®
protocol via current output
Device revision 1
Physical layer FSK
Device category Sensor, galvanically isolated
System requirements
250 Ω loop resistance for HART
®
communication
Multidrop operation 4 mA
Approvals
CE This device fulfils the statutory requirements of the EC directives. The
manufacturer certifies successful testing of the product by applying the CE
mark.
Shock resistance:
IEC 60068-2-31, Environmental testing – Part 2: Test Ec
Electromagnetic compatibility:
Acc. to EN 61326, NAMUR NE 21
Low voltage directive:
Safety requirements for electrical equipment for measurement, control, and
laboratory use in accordance with EN 61010-1:2001
Cytotoxic Cytotoxic DIN EN ISO 10993-5 and USP 31, 2008, Chapter 87,
FDA EPDM, (FDA) approved
Ex IECEx: Ex ia IIC T6, IECEx PTB 13.0022X
ATEX: II 1G Ex ia IIC T6, PTB 13 ATEX 2011X
FM/CSA: FM/CSA IS/NI Cl. I Div. 1 & 2 GP A - D (zone 0) (in preparation)
NEPSI: NEPSI Ex ia IIC T3 / T4 / T6 (in preparation)
INFORMATION!
For further information contact your local sales office.
.book Page 31 Monday, November 18, 2013 4:44 PM