trubomat GAB 1000 User manual

In-line turbidity transmitter
TRUBOMAT®GAB 1000
12-03-2015 446 M1 02 G
ME
446-02/1
NSTRUCT ONS MANUAL
TRUBOMAT® GAB 1000
In-line turbidity transmitter
From 0.1 to 1000 FNU

AFETY PRECAUTION
Only qualified person should operate, install and assure the maintenance.
All nternational and European recommendations on electrical installation should be applied.
• The device may only be connected to supply power, which complies with the specifications included in the technical data.
• The device must be disconnected from all sources of power during installation and maintenance work.
• The device may only be operated under the conditions specified in the operating instructions.
FUNCTION - DE CRIPTION
The turbidity-measuring device determines the turbidity of liquids using the light absorption and scattered light measuring method.
The inline measuring cell at the sensor set makes use of two R transmitters and one R receiver in pulsating light mode ( R mea-
suring method according SO 7027). The interconnected BAMOPHOX TUR measuring amplifier (option) analyses the 4 to 20 mA
signal generated by the sensor set.
MOUNTING
- The fixture must be installed vertically. – Best installation is the mounting in an ascending pipe with slow down section 600 mm
in front and 400 mm behind the turbidity-measuring device.
- The sensor fixture must be completely filled with liquid during the performance of measurements.
nstall to the vertical portion of a siphon trap if necessary.
- Air bubbles distort measurement results.
- Glass windows must be clean – clean them at regular intervals as required.
ET UP – DI PLAY
The sensor set consists of a receiver module with microprocessor-controlled analysis electronics and two emitter modules.
The sensor set generates a 4 to 20 mA output signal in accordance with the following diagram. Measuring ranges are selected with
the help of the D P switches on the receiver module.
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446 M1 01 G 12-03-2015
Note: The tubidity measuring instruments are calibred with the internationally
specified standard suspension Formazin.
The indication takes places thus not in form of the measured light intensity, but
as concentration of the Formazin calibration suspension.
During the measurement with any liquid, this means thus that the liquid
concerned causes the same light scattering as the standard suspension of
the indicated concentration.
Measured values of other turbidity measuring instruments, wich use other
calibration suspensions and measuring angle, cannot be compared direcly
with those with Formazin calibrated measuring instruments.
Signal 4-20 mA
FNU
Turbidité hors échelle
T
DIP-switch
range et-up
Terminals Calibration
potentiometers
Receiver module PCB
Over range
n case of measure out of
the rang, the 4-20mA signal
is froze to 22mA
Indication
Green LED = 1Hz blinking Ready, measuring in operation
Green LED = permanent ON Ready, measuring not in operation
Green LED = OFF No power supply, or defective
Fault indication
Red LED = ON Measuring circuit faulty, (short circuit, or broken)
(court circuit ou rupture)
*) DIP5 and 6 = not connected / no function
**) Armatures with nominal diameter > DN 65
Measuring range DIP1 DIP2 DIP3 DIP4 DIP5* DIP6*
MB1 = 0.1... 50 FNU OFF OFF OFF ON NC NC
MB2 = 0.1...100 FNU ON OFF OFF ON NC NC
MB3 = 0.1...200 FNU OFF ON OFF ON NC NC
MB4 = 0.1...500 FNU (**300) ON ON OFF ON NC NC
MB5 = 100...1000 FNU OFF OFF OFF OFF NC NC

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446 M1 01 G 12-03-2015
25 30
-+
Measuring signal
4-20 mA
P+
Power supply
Transmitter
S1
P-
Sensor electronics
+
-
10...30 V
AC
DC
Power
Ammeter
or
4...20 mA input
Automaton
Supervisor
+
-
+-
Red Black
Transmitter
S2
+-
Red Black
Transmitter
S1
[90°]
Scattered light
Transmitter
S2
[180°]
Direct light
25 30
P
NOTE: The measuring output “4-20 mA" is a current drain, this means, the output channel has the same electrical behaviour as
a variable resistor. An active power supply for the measuring circuit is always needed.
For connection to BAMOPHOX TUR, please see specific documentation msa436-01.
ignal in limit conditions: 0 mA = wrong connected and / or dip-switches wrong adjusted
4 mA = 0 FNU (clearest water, pipe filled)
20 mA = 100% output acc. to adjusted range (pipe filled)
22 mA = over range
21 mA = general failure on electronics
When pipe is empty: f there are no water drops on the glasses the output will be a little bit higher than 4 mA (depending on the
refraction index of air-molecules). f there are water drops on the glasses the output is higher than 4 mA, but the signal depends on size
and quantity of water drops.
o it´s important to install the turbidity measurement system always in such a way that the pipe is filled at any time (ver-
tically or with a siphon). That’s valid not only for TURBICUBE but for all systems on the market.
5 WIRING
25 30
-
Maximal load
[Ohms]
Voltage [V]
1200
1000
800
600
400
200
0
10 15 20 25 30
P
Not permissible range
Permissible range
6 TECHNICAL FEATURE
Power supply: 24 V DC rated (10...30 V DC)
Power consumption: 0,5 W
Output signal: 4-20 mA, for connection to the BAMOPHOX TUR 436
Ambient temperature +5...+45 °C
Process temperature +5...+100 °C
Material: 316L Stainless steel body / Terminal housing plastic PBT, P 65
Accuracy: ±5% reading, ±1% full scale in use
Resolution: 0,001...0,2 FNU according to measuring range
Measuring ranges
Process connections (ND25...ND 100): PN10 flanges (DIN 2633), Triclamp (DIN 11850)
L
CE Mark: n accordance with low-voltage directive (2006/95/EG), EMC directives (2004/108/CEE)
ND L: Flanges DIN 2633 L: Triclamp DIN 11850
ND 25 274 288
ND 32 252 266
ND 40 230 244
ND 50 190 202
ND 65 233 249
ND 80 208 218
ND 100 240 260
ND 25...ND65 : 0.1...50 FNU 0.1...100 FNU 0.1...200 FNU 0.1...500 FNU 100...1000 FAU
ND 80...ND 100 : 0.1...50 FNU 0.1...100 FNU 0.1...200 FNU 0.1...300 FNU 100...1000 FAU

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446 M1 01 G 12-03-2015
7 MAINTENANCE
Cleaning intervals depend upon the type of liquid medium and must be determined by the user.
Cleaning the lenses:
• Disconnect the turbidity-measuring instrument from all sources of power.
• Depressurize pipes and empty liquid medium from the device.
• Remove the transmitters and the receiver from the fixture by unscrewing the sleeve nuts.
1) Screw the compression disc 2) Remove the O-ring. 3) Remove the lens with the included suction cup,
with the included tool and and clean the lens.
remove it. Do not use abrasive cleansers
Reassemble after cleaning by following the above instructions in reverse.
Note:
• nspect the O-ring before reassembly and replace it if necessary.
• tighten the compression disc with the included tool (use the rod of the suction cup as a lever).
• Before reinstalling the transmitters and the receiver, refill the fixture with liquid medium and inspect for possible leaks.
Observe the positioning
of hole and pin.
Note for cold fluids:
• The fixture has to be installed on the piping with mounted sensors only.
• To clean the glasses, dismount the complete fixture.
After cleaning install as described above.
leeve Nut
This side has a dirt
repellent coating.
This side must face the
medium after the lens
has been mounted.
Observe the point
Observe above note if coated lenses are used.