Arkon Channelmag - Manuals

5 Table of Contents 4.8 Erratic Signal 24 4.9 Signal or Indication “Swing” 24 Section 5 Recommended Spares 5.1 Recommended Spares 25 24 24 25

6 ChannelMag Section 1 Introduction The ChannelMag CM2 is suitable for open channels having diverse cross sectional shapes from 6” to 200 feet (150 mm to 60 m). 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...

7 Chanel Mag Section I Introduccion The ChannelMag PM2 Series is suitable for full or partially full pipes from 20” to 120” (500 - 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. ChannelM...

8 ChannelMag Section 1 Introduction Before installation, make sure the operating environments of the flowmeter and ancillary equipment are consistent with appropriate national approvals such as USA UL or NEC, Canadian CSA, European CE. The installation must be carried out by qualified personnel only...

9 ChannelMag Section 2 Installation The ChannelMag is suitable for such media as water, raw sewage, slurries, algae laden river water, and similar. The minimum media conductivity is 0.5 microS/cm for operation with pulsed AC transmitters. Most water based media has a conductivity of 200 – 800 microS...

10 Channel / Pipe ChannelMag Section 2 Installation the electrode cables and the energizer coil cable within the junction box. Do not use silicone rubber (RTV) for potting, since it contains acetic acid which can corrode the junction box terminals. Make sure the serial number of the ChannelMag senso...

11 ChannelMag Section 2 Installation 2.3.3 Important Note 2.4.1 CM2 Sensors Nominal CM2 Width Actual CM2 Width L S R H M Weight Each in. mm. in. mm. in. mm. in. mm. in. mm. in. mm. in. mm. lb kg. 8.0 200 10.0 254 40.0 1016 8.0 203 14.5 370 2.50 64 6.0 152 55 25 24.0 600 26.0 660 60.0 1520 25.0 610 1...

12 ChannelMag Section 2 Installation The height “E” of the magnetic enhancement plates is custom made and normally extends 2” (50mm) below the top of the channel. The width W is adjustable to fit the channel width. W includes the mounting brackets. 1/4” (6.3mm) thick base plates with countersunk 1/4...

13 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 co...

14 ChannelMag Section 2 Installation The CM2/D is normally used with a FMX167 hydrostatic level transducer and installed as shown below. A 2-part re-enterable gel type 4442, manufactured by 3M Company, St. Paul, Minnesota, is normally supplied to retain the CM2/D in the hole made for it. The 2-part ...

15 ChannelMag Section 2 Installation step should be cemented with an approach angle of not more than 15 degrees. The recess must extend over the full width of the bed of the channel to accommodate the Magnetic Enhancement Plates. Note: CM2/8” ChannelMag sensors are normally supplied with ramps. Chan...

16 ChannelMag Section 2 Installation 2.4.5 PM2 Sensors in Non-Full Pipes The ChannelMag PM Series sensors are used in partially filled pipes from 20” - 120” (500 - 3000 mm) diameter. For pipes 20” - 36” (500 - 915 mm) a single ChannelMag sensor is installed in a retention band at the bottom of a hor...

17 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

18 Enhancement Plate Expander Mechanism The CM2 ChannelMag is equipped with a grounding plate, normally manufactured from AISI 316 stainless steel. This makes sure there are no unequal potentials between the media and the shielding of the ChannelMag connection cables. For cable distances from the ju...

19 ChannelMag Section 2 Installation 2.6 Cable Types Exciter Coils Electrodes Reference Coils Black to 4 Black to 24 Black to 31 White to 5 White to 25 White to 32 Shield to 6 Shield to 26 Shield to 19 The junction box is submersible and is potted with a re-enterable gel, but is not intended to be i...

21 The Junction Box The cable ends and the junction box supplied for multi-Channel Mag systems are to NEMA 6 and IP68 for permanent submersion to 30 feet (10m) water column. As such, the cable ends are supplied with shrink-fit sleeves. It is important not to cut these sleeves off during storage, as ...

22 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 sin...

23 ChannelMag Section 4 Maintenance 4.1 Cleaning 4.2 Zero Span Checking 4.3 Effect of Moisture 4.4 Effect of a 4.5 Effect of One Sensor Of Two Inoperative Under typical operating conditions the ChannelMag sensor requires no maintenance. Due to the uniquely high signal to media noise ratio, the affec...

24 ChannelMag Section 4 Maintenance 4.6 Transmitter Fault 4.7 All Checks Good, But No Signal 4.8 Erratic Signal 4.9 Signal Or Indication “Swing” Should the resistances referenced above be correct, but the zero and span cannot be achieved, then the fault lies with the transmitter. Check wiring in tra...

25 ChannelMag Section 5 Recommended Spares 5.1 Recommended Spares Since the ChannelMag sensor is a solid state sensor, completely encapsulated, there are no recommended spares. Make sure when ordering a new ChannelMag sensor or transmitter that the serial number found on the transmitter label is adv...