Bamo CNL User manual

CNL
Side level controllers
CNL 200
CNL 250
CNL 320
CNL 450
USER MANUAL
NIV
14-02-2022 M-526.01-EN-AA 526-01/1
Side level controllers
CNL
22, Rue de la Voie des Bans · Z.I. de la gare · 95100 ARGENTEUIL
Tel
Fax
[phone]
[phone]
Web
E-mail
www.bamo.eu
[email protected]
INTERNATIONAL

SAFETY INSTRUCTIONS
• The operation of the device must be in accordance with and strictly limited to the applications, as mentioned further on and on data-sheet.
• Installation, commissioning and maintenance must be carried out by qualified personnel.
• Only connect the device to the voltage specified in the technical features and on the label.
• Disconnect all power sources from the device during interventions or maintenance tasks.
• Ensure compatibility of the liquid with the chemical resistance of the controller's materials at operating pressure and temperature.
APPLICATIONS
- Level detection for liquids
DESCRIPTION
The lateral level controller CNL, consists of a float fixed to a shaft which end has a magnet on metal models or a magnetic float on PPH
models. The float is moved by the liquid and the magnet acts on a Reed contact isolated from the liquid.
Protection of the reed contact and respect of its breaking capacity can be ensured by an amplifier relay, type ES 2001
(data-sheet 530-01).
MOUNTING
The CNL 200 and CNL 250 are screwed onto the tank wall: fitting BSP-M ¾''.
- Prepare the female thread on tank wall to fix the controller
- Use PTFE ribbon or equivalent insulation to seal the fitting
- Screw the controller onto the tank
- Once mounted, the controller must be oriented so that the connector is oriented downwards (vertical tilting of the float).
The nut near the support is used to position it correctly.
In this case, the insulation will be achieved by the insulator.
CNL 320 is fixed on the tank, after drilling with proper bore
- Drill at Ø 22 mm the tank wall (thickness of the wall must not exceed 8 mm)
- Insert the controller in the desired position according to the direction of action (vertical tilting) and the direction of action (see ''contact
setting'')
- After installing the seal and the plastic washer, re-tighten the nut until the seal is crushed enough for the controller to be stuck on the tank.
In this case, the insulation will be carried out by the cylindric seal.
The CNL 450 is screwed onto the tank wall: fitting NPT-M ½''
- Prepare the female thread on tank wall to fix the controller
- Use PTFE ribbon or equivalent insulation to seal the fitting
- Screw the controller onto the tank, making sure by means of the mark of the correct float position (vertical tilting) and the direction of action
(see ''contact setting'')
In this case, the insulation will be carried out by the insulator
NIV
14-02-2022 M-526.01-EN-AA 526-01/2
Side level controllers
CNL
22, Rue de la Voie des Bans · Z.I. de la gare · 95100 ARGENTEUIL
Tel
Fax
[phone]
[phone]
Web
E-mail
www.bamo.eu
[email protected]
INTERNATIONAL

Closed contact
→ Red arrow
Open contact
→ Blue arrow
1: Factory setting
2 & 3: Threshold limits of the adjustment range
Locking screw
ELECTRICAL CONNECTIONS AND CONTACT SETTINGS
The contact is connected in series to the desired device (solenoid valve, etc.).
CNL 200 & CNL 250:
On metallic models, the threshold is adjusted by moving the contact stem. Loosen
the locking screw (hexagonal female 1.5) and move the stem until the red arrow is
visible at the entrance if closed contact is desired, and, the blue arrow if the open
contact is desired. Once the adjustment has been made, tighten the locking screw.
Fine adjustment of the switching point can be carried out between limit points 2 and
3 of the adjustment range.
Move to arrowhead (2) → The switching point is advanced.
Move to the base of the arrow (3) → The switching contact is delayed.
After adjusting the switching point, we recommend sealing the locking screw of the
stem with a suitable varnish.
CNL 320 & CNL 450:
On the PPH models, the threshold is not adjustable, in all cases, it is done when the float is in line with the controller. The threshold, or for an
increasing, or a decreasing level, is chosen according to the orientation of the controller.
In position (A): The contact detects when
level is rising.
In position (B): The contact detects when
level is going down
Mark
Mark
TECHNICAL FEATURES
Body AISI 316 Brass PPH
Float AISI 316 PVDF PPH
Minimum liquid S.G. 0.83 0.78
Seal FPM NBR for CNL 320
Maximum temperature 110 °C 80 °C
Maximum pressure 6 bar 2 bar
Switching power (resistive load)
Max. 1 A
Max. 230 V AC or 48 V DC
Max. 26 VA or 20 W
EC Conformity: The instruments meet the legal requirements of the current European Directives
NIV
14-02-2022 M-526.01-EN-AA 526-01/3
Side level controllers
CNL
22, Rue de la Voie des Bans · Z.I. de la gare · 95100 ARGENTEUIL
Tel
Fax
[phone]
[phone]
Web
E-mail
www.bamo.eu
[email protected]
INTERNATIONAL

DIMENSIONS
MAINTENANCE
When adjusting thresholds on metal versions, check that the contact support is correctly reassembled. Monitor the tightness of the sealing
over time, it is advisable to put a suitable seal on the fitting before mounting the device.
NIV
14-02-2022 M-526.01-EN-AA 526-01/4
Side level controllers
CNL
22, Rue de la Voie des Bans · Z.I. de la gare · 95100 ARGENTEUIL
Tel
Fax
[phone]
[phone]
Web
E-mail
www.bamo.eu
[email protected]
INTERNATIONAL