0
04.08.09 Issued for Information
Rev.
Date
Description
KKH
KHJ
ADA
Made by
Checked by
Approved by
Approved QA
Document title:
Instrument Datasheet
DSP Leak Monitor
Document number
62.427.0004.09
Replacement for
Revision
0
Replaced by
Number of pages
2
DSP Leak Monitor, Ex ia
Instrument Datasheet INSTRUMENT DATA
GENERAL
1.0
1.1
1.2
Manufacturer
Model description
Part number
CLIENT DATA
2.0
2.1
2.2
2.3
2.4
2.5
2.6
Customer
Project title
Field / installation
P.O. number
Part number
Tag number
Document number / rev.
INSTRUMENT LAYOUT
NOTE
ClampOn AS
DSP Leak monitor, Ex ia
930-12xxx-xxx
PHYSICAL
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
Dimensions (ø x h)
Material
Weight (approximate)
Ingress protection
Operating temperature
Ambient temperature
Protective coating
Mounting
Cable entry
Cable gland
Cable
HARDWARE AND CERTIFICATION
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
Supply voltage
Power consumption
Hazardous area
Certification code
Equipment code
Ex certificate number
Signal output
Protocol
Baud rate
Microprocessor
Diagnostic features
1
80 mm x 144 mm [3.1 in x 5.7 in]
AISI 316 Stainless Steel
3 kg [6.6 lb]
IP68
-40 C to 150 C [-40 F to 302 F]
-40 C to 60 C [-40 F to 140 F]
None
Clamp on to pipe surface
1 off M20 x 1,5 ISO Metric
None*
None*
12 VDC to 25 VDC (from I.S PSU)
Typical / max: 1,5 W / 2,1 W
Zone 0, 1, 2
EEx ia IIB T2-T5
II 1 G
DNV-99-ATEX-1004X
See note
See note
See note
66 MIPS
Self-testing
NOTES
2
1
3, 4
2
3
5
4
6
5
8
3, 8
3, 8
9
9
9
6
7
10
8
OPERATION
5.0
5.1
5.2
5.3
5.4
5.5
Manner of operation
Technology
Processing
Flow conditions
Minimum detectable
leakage:
MTBF
Real-time measurement
Passive ultrasonic
DSP in sensor unit
Oil / water / gas / multiphase
Liquid: dP >3 bar [44 psi]
Gas:
dP >1 bar [15 psi]
>30 years
9
11
10
11
X notation subject to change according to signal
output, cable type/length, and coating.
Weight including mounting accessories.
ATEX-certified for pipe/valve surface temperature up
to 225 °C [437 F].Temperature class depends on
pipe/valve surface temperature. See certificate for
details.
Operating temperature stated for 15 °C [59 °F]
ambient temperature.
Delivered with mounting skid and clamping bands.
Clamping band length 2 m [6.6 ft], covering pipe OD
<600 mm DN [24 inch NPS].
Extension clamping band for larger pipe OD, ask
supplier for details.
For installation of the sensor there must be a minimum
of 30 cm [12 in] free space above the pipe. Sensor
front must have metal to metal contact with the pipe
surface. See installation instructions for further details.
Terminals inside sensor enclosure suitable for wire
2
cross section 0,14 to 1,5 mm [AWG 25 to 16].
According to ATEX-certificate the sensor has to be
powered from an intrinsically safe power supply. Use
only I.S power supply supplied or approved by
ClampOn.
Additional certification available:
CSAc&us

Certification code: Class 1 Div 1, Group C & D, T5
Ex certificate no.: 1298002
See certificate for details.
Available communication interfaces:
 RS-485 Proprietary DSP Protocol
(9 600 bps or 19 200 bps)
Internal self-testing of analogue filters, amplifiers and
flash memory.
Minimum leakage rate is 0,1 l/min [0.026 gal/min],
depending on delta pressure (dP) over the leakage
point.
*Number of cable entries and size, enclosure material, and cable/cable
gland type adaption’s available on request. Ask supplier for details.
SYSTEM DESIGN
ClampOn DSP Leak Monitor, Ex ia version (also available in Ex de/dem version), is designed to detect leakage or flow-through on pipes and valves.
The sensor is non-intrusive and clamped on the pipe surface; hence no parts are in contact with the flow. All ClampOn topside sensors have twoway communication via RS-485, can be upgraded / customized by software download, contain no moving parts and are easy to relocate. A
computer running ClampOn software must be used to handle data storage and communication to client control system. ClampOn DSP Leak Monitor, Ex ia
Instrument Datasheet 62.427.0004.09