GESTRA TURBISCOPE OR 52/5 User manual

ALARM
12
ppm
sec
cal
0
OIL
Test
P
E
Measuring transducer ORT 6
Measuring sensor ORG 12, ORG 22
Oil and Turbidity Detector TURBISCOPE
OR 52/5, OR 52/6
Description
Use oil and turbidity detector OR 52 only for monitoring
transparent liquids to detect any ingress of light-scattering
and insoluble foreign matter.
The oil and turbidity detector OR 52-5/-6 consists of a type
ORG 12 or ORG 22 measuring sensor and type ORT 6 meas-
uring transducer that acts as an operating and display unit.
The correct measuring sensor is selected depending on the
fluid used.
The oil and turbidity detector is used to detect impurities
in transparent liquids. The equipment is mainly employed
in industry and the food sector, in which high levels of reli-
ability and ease of maintenance are essential.
Typical applications
In steam boiler and hot water plants, the oil & turbidity
detector can monitor any ingress of oil or grease into
the condensate, the feed water or the water circuit (EN
12952-7, EN 12953-6,TRD 604 sheet 1). 2 devices are
required for 72 hrs. operation.
In addition, the oil & turbidity detector is suitable for
monitoring untreated and treated water (gravel filters,
demineralisation plants, reverse osmosis systems) as
well as waste water..
In the food sector, the oil & turbidity detector is used in
the brewing and beverage industry (filtration, monitoring
of flavouring, quality assurance, etc.) and for monitoring
filtration in the production of cooking oil.
Function
The measuring sensor is a photometric measuring device.
It consists of a light source (light emitter) and two photo-
electric cells that make up a light receiver. A constantly
maintained beam of light shines through the transparent
liquid. Undissolved foreign particles scatter the beam, which
is measured using the 15° forward-scattered light princi-
ple. This scattered light is then converted into an electrical
current and analysed to determine the content of foreign
matter.
The measuring transducer is the operating and display unit
for actuating the measuring sensor and analysing the sig-
nals. It visually displays the measurement results and is
used to set the measuring equipment. It displays the actual
value, the triggering of ALARM 1 and ALARM 2 limit alarms
and malfunctions in the measuring sensor. Limit values are
set and displayed on the measuring transducer.
Directives and Standards
VdTÜV Bulletin "Wasserüberwachung 100" (= Water
Monitoring 100)
The oil and turbidity detector OR 52-5/-6 is type-approved
for condensate and feedwater monitoring in accordance
with the VdTÜV Bulletin "Wasserüberwachung 100" (= Wa-
ter Monitoring 100)
Type approval: TÜV · WÜF · XX-009.
The VdTÜV Bulletin "Water Monitoring 100" states the re-
quirements made on water monitoring equipment.
LV (Low Voltage) Directive and EMC
(Electromagnetic Compatibility)
The equipment conforms to the requirements of Low Voltage
Directive 2014/35/EU and the EMC Directive 2014/30/EU.
Approvals for Marine Applications
The equipment is approved for monitoring condensate and
feedwater systems on board of seagoing vessels.
ATEX (Hazardous Area)
According to the European Directive 2014/34/EU the equip-
ment must not be used in potentially explosive areas. Ap-
plication in Ex zones on request.
UL/cUL (CSA) Approval
The equipment complies with the requirements of
the following standards: UL 508 and CSA C22.2 No.
14-13, Standards for Industrial Control Equipment.
File E243189.
Technical Data
Measuring sensor ORG 12, ORG 22
Service pressure
PN 10, 10 bar at max.120°C
Mechanical connections
DN 10, screwed G 3/8A, ISO 228
Flowrate
0.5 – 50 l/min
Pressure drop
5 [mbar] 1)
Fluids
Water, condensate, drinks, etc.
Max. pH value of the fluid 2)
10.5
Fluid temperature ranges
0°C – 60°C (with drying cartridge)
60°C – 120°C (with vent nipple)
Ambient temperature
0 – 60°C
Weight
approx. 6.8 kg
Materials of construction
Body
0.6025 galvanized
Cover
ORG 12: 0.6025 galvanized ORG 22: 1.4580
Data Sheet 810741-05
Issue Date: 08/17
1) At a flowrate of 2 l/min and V-shaped flow through the sensor with a pipe
length of 1 m (DN 10), 4 bends and ζ = 6.1.
2) A pH value > 10.5 will lead to wear of the glass, depending on the
temperature.

Technical Data - continued -
Measuring sensor ORG 12, ORG 22 - continued -
Wetted parts
ORG 12: 0.6025 galvanized ORG 22: 1.4580
Ball valves
ORG 12: Brass 58 ORG 22: 1.4436
Screwed unions
ORG 12: Steel ORG 22: 1.4571
Glass cylinder
Duran 50
Gaskets
Silicone
Cleaning disc
EPDM
Light emitter
Glow lamp 12 V / 10 W BA 15s
Protection IP 65
Light receiver
2 Silicon photo-electric cells
Protection IP 65
Measuring transducer ORT 6
Inputs
Directly transmitted light (D), scattered light (S)
Outputs
1 Voltage output for light emitter /,
1 – 12 V pulse-amplitude modulated
3 Volt-free change-over contacts
(alarm 1 and 2, malfunction)
Contact material AgNi 0.15
Max. contact rating for switching voltages 24 AC/DC,
115 V and 230 V AC: resistive / inductive 4 A
1 Current output 4 – 20 mA, max. load 500 ohm
Measuring range
0 – 25 ppm (ppm = parts per million)
Other ranges available on request
Actual value output
4 mA ;0 ppm, 20 mA ;25 ppm
Adjustment range, limit value for alarms 1 and 2
Adjustable between 0 and 15 ppm
Indicators and adjustors
4 membrane keys
8 LEDs for indicating operating modes and dimensions
1 three-digit seven-segment display for actual value, limit
value and fault indication
3 internal LEDs for monitoring system voltages
Adjustment range for time delays for alarm 1 and 2
0 to 20 seconds
Other ranges on request
Mains voltage
230 V +10 / –15 %, 50 – 60 Hz
115 V +10 / –15 %, 50 – 60 Hz (optional)
24 V +10 / –15 %, 50 – 60 Hz (optional)
Power consumption
25 VA
Fuse
Thermal fuse M 0.2 A 5 x 20 at 230 V
Thermal fuse M 0.4 A 5 x 20 at 115 V
Thermal fuse M 1.0 A 5 x 20 at 24 V
Housing
Field case for wall mounting
Housing material
Die-cast aluminium
Protection
IP 65 to EN 60529
Admissible ambient temperature
0 °C – 55 °C
Weight
approx. 3.6 kg
Oil and Turbidity Detector TURBISCOPE
OR 52-5
OR 52-6
Dimensions
ALARM
12
ppm
sec
cal
0
OIL
Test
PE
Measuring sensor ORG 12, ORG 22
Key
1Light emitter with tube (can be
interchanged with 4)
2G 3/8A ISO 228
3Upper flange with two
connections can be inter-
changed with lower flange
4Light receiver with tube (can be
interchanged with 1)
5G
3/8A ISO 228
6Vent nipple
7Drying cartridge
8Cable gland M 16 x 1.5
9Body made from die-cast
aluminium
140
135
78
70
135
200 175
375
≈85
∅9
54
100 ≈90≈125
315
≈336
140
160
91
240
260
285
7
1 2 3
4
5
9
8
∅ 7.5
Measuring transducer ORT 6 (field case for wall installation)
6
Scope of supply
Parts supplied OR 52/5 OR 52/6 Ref. number (230 V) Ref. number (115 V)
Measuring transducer ORT 6 ORT 6 392 099 392 106
Measuring sensor incl. ORG 12 ORG 22 385 193 385 195
Ball valves 3 3 077 135 077 135
Screwed unions 3 3 077 133 077 133
Drying cartridge (supplied but not
fitted) 1 1 077 139 077 139
Vent nipple (screwed in) 1 1 077 213 077 213
Turbidity standard 20 ppm (supplied
but not fitted) 1 1 387 369 387 369
Fig. 1
Fig. 2
Approvals
TÜV type approvals acc. to VdTÜV Bulletin "Wasserüberwa-
chung 100": (= Water Monitoring 100) Requirements made
on water level monitoring equipment Type approval: TÜV ·
WÜL · XX-009, on board of seagoing vessels: GL 94855-
94 HH

Oil/Turbidity curves
When the scattered light is measured, its intensity is used to
determine the concentration of suspended solids in the fluid.
However, where the concentration of solids is the same, the
scattered light intensity or degree of turbidity depends on:
1. the size of the particles (degree of emulsification)
2. the shape and composition of the particles
3. the optical properties of the particles
When turbidity is caused by oil and grease, the degree of
emulsification is a decisive factor.
For examples see the following chart.
0Fuel oil EL, 15°C, coarse emulsification
!Fuel oil EL, 15°C, fine emulsification
"Fuel oil EL, 80°C, fine emulsification
§Engine oil SAE15W40, 15°C, fine emulsification
$Vegetable oil, 15°C, fine emulsification
%Xylene, 20°C, fine emulsification
%Xylene, 80°C, fine emulsification
/Red berry juice, concentrated
/Black berry juice, concentrated
)Skimmed milk, fat content 0.1 %, based on fat
concentration
=Turbine oil T 68, gear oil M 68
Display [ppm]
25
20
15
10
5
Oil and Turbidity Detector TURBISCOPE
OR 52-5
OR 52-6
Installation example of condensate monitoring in steam boiler
systems
0
"
=
$
§
!
&
(
)
%
/
ALARM
12
ppm
sec
cal
0
Test
PE
OIL
ALARM
12
ppm
sec
cal
0
Test
PE
OIL
Measuring transducer ORT 6
Measuring sensor
ORG 12, ORG 22
Fig. 4
Important Notes
Condensate monitoring
Installation
In steam boilers and hot-water plants the oil and turbid-
ity detector can monitor water, condensate and feedwater
systems for the ingress of oil and grease (EN 12952-7,
EN 12953-6, TRD 604 sheet 1).
Fig. 4 shows a typical arrangement of the monitoring
equipment with flow from left to right. If there is an ingress
of oil or grease and the set limit value is exceeded, the first
oil & turbidity detector actuates a three-way switch-over
valve, to remove the contaminated water from the circuit.
In systems without continuous supervision (72 h operation),
a second oil & turbidity detector monitors any continuing flow
of water, and interrupts the system's safety circuit if the set
limit value is exceeded.
Provide a throttling point in the main line, e.g. a non-return
valve (GESTRA type RK 86 with special spring 20 mbar).Install
the measuring sensor in a bypass at a lower level than the
main line, so that any gas bubbles and flash steam are kept
away from the sensor.
Tap the main line at the side from the bottom to prevent air
and dirt particles from flowing into the bypass.
Live steam and flash steam affect measurements and must
therefore be kept away from the sensor. For more informa-
tion see installation instructions in the operating manual
for the OR.
Fig. 3
2 4 6 8 10 12 14 16 18 20
Concentration [µl/l] = [ppm]

DS
1 2 23
3
3
3
33333
L N
M 0,2A
2
2
2
2 2 2 2 2
1
1
1
1 1 1 1
S
D
L
A Z
DS
1 2 23
3
3
3
33333
L N
M 0,2A
2
2
2
22222
1
1
1
1111
S
D
L
A Z
810741-05/09-17cm (804207-08) · GESTRA AG · Bremen · Printed in Germany
Supply in accordance with our general terms of business.
Oil and Turbidity Detector TURBISCOPE
OR 52/5
OR 52/6
Important Notes
Electrical connection
To connect the light emitter/receiver, please use a screened,
multi-core control cable with a min. conductor size of 0.5
mm². For the light emitter e.g. 2 x 0.5 mm2 and for the
receiver e.g. 4 x 0.5 mm2.
Connect the screen in the measuring transducer only once.
Max. line length between light emitter/receiver and measuring
transducer 50 m.
To use alarm contact 1 for an initial alarm and alarm contact
2 for the main alarm, for instance, set two different limit
values.
For condensate monitoring, alarm contact 1 can then be
used to control a three-way valve, which will discharge
the unusable condensate if the level of turbidity is too high
(alarm caused by ingress of oil or start-up protection). Alarm
contact 2 will then trigger the main alarm.
Note that alarm contacts 1 and 2 and the three-way switch-
over valve will not be switched over in the event of a mal-
function.
However, the malfunction can be included in the control
of the three-way switch-over valve as shown in the wiring
diagram Fig. 6.
Pneumatic valves can be actuated via solenoid valves.
Valves with a single-phase AC motor and max. power rating
of 50 VA (see wiring diagram Fig.5 or Fig. 6) can also be
connected directly. Install a reversing contact in between in
the case of three-phase actuators.
Order & Enquiry Specification
GESTRA Oil and Turbidity Detector TURBISCOPE, consisting
of a measuring sensor with accessories and a measuring
transducer.
GESTRA Oil and Turbidity Detector OR 52/5, consisting of
a measuring sensor ORG 12 (grey cast iron GG-25) and
a measuring transducer ORT 6.
GESTRA Oil and Turbidity Detector OR 52/6, consisting
of a measuring sensor ORG 22 (stainless steel) and a
measuring transducer ORT 6.
Supply voltage ................................. V (230 V or 115 V).
Ancillaries
Three-way valve,
Pneumatic actuator, series 500 or
Three-way solenoid valve.
Electric actuator, series 200
Shut-off valve GAV
Non-return valve RK 86, 20 mbar opening pressure
Valve OPEN:
Fluid flows through
Valve CLOSED:
Fluid is discharged or
retained
Wiring diagram
Switch-over in the event of an alarm
Safety position
Spring to close
Wiring diagram
Switch-over in the event of an alarm or
malfunction
Malfunction
Alarm 2 Alarm 1
N
4 - 20 mA
R ≤ 500 Ω
Measuring sensor
ORG...
Measuring sensor
ORG...
Measuring transducer
ORT 6
Measuring transducer
ORT 6
Disconnecting
switch
Earthing screw in
housing
N
L
4 - 20 mA
R ≤ 500 Ω
Alarm 2 Alarm 1
Malfunction
Disconnecting
switch
Earthing screw in
housing
N
N
N
L
Safety position
Spring to close
Fig. 5
Fig. 6
Valve OPEN:
Fluid flows through
Valve CLOSED:
Fluid is discharged or
retained
GESTRA AG
Münchener Straße 77, 28215 Bremen, Germany
Telefon [phone], Telefax [phone]
E-mail [email protected], Web www.gestra.de