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Summary of Contents for Arkon Channelmag
- Page 1 CHANNELMAG FLOWMETERS FOR OPEN CHANNELS AND NON- FULL PIPES Instruction Manual RTM- Expolink s.r.o., Prikop 8, 60200 Brno, Czech Republic...
- Page 2 Tel: +420 545 175 834. Tel/ Fax: +420 545 175 684 Email: Website: For other countries, consult your nearest ARKON representative. Simple difficulties can often be diagnosed over the phone. If it is necessary to return the equipment to the factory for service, please read our website.
- Page 3 The installation and operation of this product may put you at risk of serious injury or even death. Take whatever precautions are necessary to ensure your safety before making an installation or working on one. Never work alone or unsupervised. Install and operate this product in accordance with all applicable safety and health regulations, as well as any appropriate local ordinances.
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Page 4: Table Of Contents
2.3.2 Straight Lengths of Pipe (PM2) 2.3.3 Important Note 2.4 Installation, Dimensions and Approximate Weights 2.4.1 CM2 Sensors 2.4.2 Installation of 2 x CM2 ChannelMag Sensors 2.4.3 CM2/D Dimensions and Approximate Weights 2.4.4 PM2 Sensors in Full Pipes 2.4.5 PM2 Sensors in Non-Full Pipes 2.4.6 Installation of PM2 Sensors With Magnetic Enhancement Band... - Page 5 4.8 Erratic Signal 4.9 Signal or Indication “Swing” Section 5 Recommended Spares 5.1 Recommended Spares Table of Contents...
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Page 6: Section 1 Introduction
10” to 15 feet (250 mm to 3 m). Their purpose is to determine the distribution pattern of magnetic flux on calibration in ARKON test laboratory and to insure it is the same as the distribution on-site. In this way, the test calibration is the same as on-site. For channels less than 10”... -
Page 7: Scope: Channelmag Pm2
Section I Introduccion 1.2 Scope: The ChannelMag PM2 Series is suitable for full or partially full pipes from 20” to 120” (500 - ChannelMag PM2 3000 mm). They meet or exceed the requirements of ISO 9213 and are calibrated in a long open tank, believed to be the largest NIST traceable facility available. -
Page 8: Safety 8
The flowmeter electronics require normal AC power supply. The flowmeter and ancillary equipment produces no electro-magnetic fields that are harmful to the environment or to personnel. They are certified as such to meet European CE requirements. DANGER WARNING ChannelMag Section 1 Introduction... -
Page 9: Section 2 Installation
Make sure the pressure of the media acting on the sensor(s) and the operational temperature does not exceed that specified. For lifting the ChannelMag sensor, use the lifting brackets fixed to the sensor, as shown on the drawing in 2.1 Location and Mounting Section 2.4. -
Page 10: Straight Lengths Of Channel / Pipe
2.3. Straight Lengths of The CM2 ChannelMag must be installed in a channel with a minimum of 7 straight channel widths Channel / Pipe upstream and 4 straight channels downstream, as shown in the diagram below. For bi-directional 2.3.1 Straight Lengths... -
Page 11: Important Note
1 channel width before or after the ends of the ramps when the ChannelMag sensor lies on the channel bed. This avoids surface level drops directly above the sensors caused by sub-critical flows, or level rises caused by super critical flows. - Page 12 Note: A CM2/8” sensor is always supplied with ramps. Cables from each sensor are to run in separate conduits to the ChannelMag junction box situated above the level of the flowing media. The cable runs are omitted in the drawing for clarity.
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Page 13: Installation Of 2 X Cm2 Channelmag Sensors
ChannelMag Section 2 Installation 2.4.2 Installation of 2 x CM2 ChannelMag Sensors Adjust width before installation into channel 2.00” 50m Lifting brackets. Do not lift by the Actual CM2 Width enhancement plates. For CM2 sensors installed in a recess in the bed of the channel, the installation configuration remains the same. 1/4” (6.3mm) thick base plates with the recess must extend over the full channel width, countersunk 1/4”... -
Page 14: Cm2/D Dimensions And Approximate Weights
The recess depth must be such that the upper surface of the ChannelMag is not higher than a suggested ½”” (12mm) above the bed of the channel, but enough to avoid excessive silt Note or similar build-up. -
Page 15: Pm2 Sensors In Full Pipes
Note: CM2/8” ChannelMag sensors are normally supplied with ramps. 2.4.4 PM2 Sensors in ChannelMag PM Series sensors are used for full pipe flow measurement from 20” - 120” (500 - 3000 mm) diameter. For 20” - 47” (500 - 1195 mm) diameter a single sensor or Full Pipes double sensor is used, dependant on the number of straight lengths of pipe available. -
Page 16: Pm2 Sensors In Non-Full Pipes
The ChannelMag PM Series sensors are used in partially filled pipes from 20” - 120” (500 - 3000 Non-Full Pipes mm) diameter. For pipes 20” - 36” (500 - 915 mm) a single ChannelMag sensor is installed in a retention band at the bottom of a horizontal pipe. For larger pipes two sensors are used at the bottom of the pipe, with their center lines equally dispersed at 15 degrees from the pipe center. -
Page 17: Installation Of Pm2 Sensors With Magnetic Enhancement Band
ChannelMag Section 2 Installation 2.4.6 Installation of PM2 Sensors With Magnetic Enhancement Band Center spacer used for compound sensor installation only Outer mounting points used without center spacer Bands joined here... -
Page 18: Channelmag Pm2 Enhancement Plate Expander Mechanism 18
This makes sure there are no unequal potentials between the media and the shielding of the ChannelMag connection cables. For cable distances from the junction box to the transmitter of 100 feet (30m) further grounding requirements are not normally necessary. However, for longer cable lengths a pre-amp in the junction box is necessary. -
Page 19: Cable Types
ChannelMags are connected to a junction box normally using cables in flexible 1” (25mm) conduit. See the ChannelMag Sensor Specification for the standard cable and conduit lengths. The cables and conduit are stowed for packing against the side of the Magnetic Enhancement Plates and are marked “coils,”... -
Page 20: Channelmag Junction Box Wiring Diagram
2.6.1 ChannelMag Junction Box Wiring Diagram ChannelMag Section 2 Installation BLACK RED OR CLEAR SHIELD CAUTION ChannelMag Section 2 Installation... -
Page 21: Channelmag Entela Approval
3. All ChannelMags and junction boxes must be potted with 3M re-enterable gel type 4442 Dual ChannelMag sensors are normally supplied with a remote dual entry junction box and is wired as shown below. For single sensor ChannelMags Sensor 2 on the diagram is omitted. -
Page 22: Calibration And Range Factors
ChannelMag Section 2 Installation For multiple ChannelMag systems, the electrode and reference cables may all run in the same conduit to their respective transmitters, but separated from the exciter coil cables by a minimum of 2 feet (0.5m). Multi-exciter coil cables may all run together in a single conduit, even with other power cables. -
Page 23: Section 4 Maintenance
4.5 Effect of One Sensor If there are two ChannelMag sensors used as one flow system in a channel, the electrodes and coils are wired in parallel. Should one sensor coil become defective, then the system will continue to Of Two Inoperative operate, but there will be a small inaccuracy due to operating with only one sensor. -
Page 24: Signal Or Indication "Swing
Check if the ChannelMag sensor is correctly grounded (see Section 2.5) d) Check for loose wiring. e) Make sure cables are not too long. For multiple ChannelMag systems make sure electrode cables are separated from other cables (see Section 2.7) The ChannelMag has high insensitivity to radios and variable frequency drives. -
Page 25: Recommended Spares
Spares Make sure when ordering a new ChannelMag sensor or transmitter that the serial number found on the transmitter label is advised. When a new ChannelMag sensor is provided it has a new Calibration Certificate. Make sure the new calibration factor is entered into the transmitter in accordance with the appropriate transmitter Instruction Manual.
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