Related Manuals for Nivetec U1000MKII-HM
Summary of Contents for Nivetec U1000MKII-HM
- Page 1 Micronics U1000MKII -HM Clamp O n Ultrasonic Heat M eter User Manual Issue 1.3 Apr 19 Page 1...
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Page 2: Table Of Contents
Key Switches ............................6 Installing The U1000MKII-HM ........................7 Preparation ............................8 Sensor Separation ..........................8 Attaching The U1000MKII-HM To The Pipe ..................10 Adaptors For Small Pipes ........................11 Attaching The Temperature Sensors ....................12 U1000MKII-HM Interface Cables ....................... 13 Connecting The U1000MKII-HM To The Supply ................ -
Page 3: General Description
(0.8”) to 165mm (6.5”) depending on product purchased • Simple to install temperature sensors • Compact, rugged and reliable, the U1000MKII-HM has been designed to provide sustained performance in industrial environments U1000MKII HM standard features include: ▪ 2 line x 16 character LCD with backlight ▪... -
Page 4: Quick Start Procedure
U1000MKII-HM User Manual 2 Quick Start Procedure The following procedure details the steps required to set up the heat meter. See the sections referred to if you are unsure about how to install the instrument. 1. Wire the electronics up to a 12 to 24V ac or dc power supply (7VA minimum per instrument) via the Blue and Brown wires. -
Page 5: How Does It Work
U1000MKII-HM User Manual 3 How Does It Work? The U1000MKII-HM is a clamp-on, ultrasonic flowmeter that uses a cross correlation transit time algorithm to provide accurate flow measurements. Figure 1 Principle of Transit-Time operation An ultrasonic beam of a given frequency is generated by applying a repetitive voltage pulse to the transducer crystals. -
Page 6: User Interface
U1000MKII-HM User Manual 4 User Interface Figure 2 illustrates the U1000MKII-HM user interface comprising:- • One 2 line x 16 character LCD with backlight • Four tactile key switches • Two LEDs Figure 2 U1000MKII-HM User Interface 4.1 Key Switches >... -
Page 7: Installing The U1000Mkii-Hm
Experience has shown that the most consistently accurate results are achieved when the transducer guide rails are mounted at 45°with respect to the top of the pipe. The U1000MKII-HM equipment expects a uniform flow profile, as a distorted flow will produce unpredictable measurement errors. Flow profile distortions can result from upstream disturbance such as bends, tees, valves, pumps and other similar obstructions. -
Page 8: Preparation
U1000MKII-HM User Manual 5.1 Preparation 1. Before attaching the transducers, first ensure that the proposed location satisfies the distance requirements shown in Figure 3 otherwise the resulting accuracy of the flow readings may be affected. The unit is preconfigured for the application as follows :-... - Page 9 U1000MKII-HM User Manual The diagram below shows how to adjust the separation of the sensors Figure 5 Separation Setting NOTE. When the sensors have been moved to the correct setting and the guide rail is attached to the pipe REMOVE the sensor holding screws, which will allow the spring loaded transducers to make contact with the pipe.
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Page 10: Attaching The U1000Mkii-Hm To The Pipe
Figure 6 simple steps to attaching the U1000MKII-HM on the pipe Note…The locking screws and washers should be kept in case it is necessary to change the location of the guide rail and sensors. See the relocation section (section 10) for the procedure to do this. -
Page 11: Adaptors For Small Pipes
U1000MKII-HM User Manual 5.4 Adaptors For Small Pipes Guide rails for small pipes are supplied with adaptors. The diagram below show how these are fitted around the pipe. The top part of the pipe adaptor clips into the ends of the guide rail. -
Page 12: Attaching The Temperature Sensors
U1000MKII-HM User Manual 5.5 Attaching The Temperature Sensors The temperature sensors must be located at the input and output of the system that is being monitored. The area of pipe where they are to be attached must be free of grease and any insulating material. -
Page 13: U1000Mkii-Hm Interface Cables
5.7 Connecting The U1000MKII-HM To The Supply The U1000MKII-HM will operate within the voltage range 12 - 24V ac/dc. The supply must have a minimum rating of 7VA per instrument. Connect the external power supply to the Brown and Blue wires of the six core cable. -
Page 14: Pulse Output Connection
U1000MKII-HM User Manual 5.8 Pulse Output Connection The isolated pulse output is provided by a SPNO/SPNC MOSFET relay which has a maximum load current of 500mA and maximum load voltage of 48V AC. The relay also provides 2500V isolation, between the sensor’s electronics and the outside world. -
Page 15: Cable Screen
U1000MKII-HM User Manual 5.10 Cable Screen For full immunity to electrical interference the screen of the power/pulse output cable and modbus cable should be connected to Earth. Issue 1.3 Apr 19 Page 15... -
Page 16: Powering Up For The First Time
U1000MKII-HM User Manual 6 Powering Up For The First Time Powering up for the first time will initiate the sequence shown in Figure 10: Λ Λ Λ Λ Select the option required by pressing the keys Figure 10 initial power up screens Issue 1.3 Apr 19... - Page 17 1. The Micronics start up screen is displayed for 5 seconds. 2. The user enters the pipe ID and selects the material (refer to section 6.1). 3. On pressing Enter in response to the Set Separation screen, the U1000MKII-HM then checks for a valid signal.
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Page 18: How To Enter The Pipe Id
U1000MKII-HM User Manual 6.1 How To Enter The Pipe ID Figure 11 shows the Enter Pipe ID screen after an initial power up. Figure 11 Enter Pipe ID Screen (Metric) Initially, the hundreds unit (050.0) will blink. Press the key to increment the hundreds digit (050.0) in the sequence 0, 1. -
Page 19: Pulse Output
U1000MKII-HM User Manual Pulse Output Pulse output can be set up to operate in four modes: Volume, Frequency, Energy or Flow Alarm. 6.2.1 Volumetric Mode In Volumetric mode, each pulse output represents a measured volume of 10 litres (default value). In Volumetric mode, with the Vol per Pulse set to 1 and the pulse width set to 50ms, the maximum number of pulses that can be output (without storage) is 1/(0.05*2) = 10 pulses per second. -
Page 20: Modbus
U1000MKII-HM User Manual Modbus (if fitted) The Modbus RTU interface is configured via the Modbus sub menu in the password controlled menu. The data rate can be selected in the range 1200 to 38400 baud. The address can be set in the range 1 to 126. - Page 21 U1000MKII-HM User Manual 0x41 40015 Units in Degrees Celsius for 0x98 iee754 Measured Temperature (Hot) Metric Units in Degrees 0x00 Fahrenheit for Imperial 40016 0x00 0x41 40017 Units in Degrees Celsius for 0x88 iee754 Measured Temperature (Cold) Metric Units in Degrees...
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Page 22: Subsequent Power-On Sequence
U1000MKII-HM User Manual 7 Subsequent Power-ON Sequence If the power supply is cycled OFF then ON after the pipe data has been entered, all subsequent start-ups will use the same configuration as was previously entered. If the configuration needs to be changed for any reason, the user can make use of the password-controlled menu as described in section 7. -
Page 23: Password Controlled Menus
U1000MKII-HM User Manual 9 Password Controlled Menus The password controlled menu allows the user some flexibility to change the default settings: User Password (71360): • Setup Menu • Comms Menu • Pulse Output Menu • Calibration Menu • Totaliser Menu 9.1 General Procedure For Changing Menu Settings... - Page 24 U1000MKII-HM User Manual PASSWORD CONTROLLED MENUS NOTE: FROM FLOW SCREEN PRESS ENTER, ENTER PASSWORD THEN SCROLL Total Energy: 606.64 kWh Invalid & OR No Enter Password: input for 10 seconds ***** Setup Menu User Menu: Setup Λ...
- Page 25 U1000MKII-HM User Manual SETUP MENU Range 0.79 – 4.33 Range 0.79 – 6.50 2.000 inches 1.969 inches Select Dimensions: Select Dimensions: Inches & mm | inches mm | inches Invalid & mm & Invalid & Enter Pipe ID: Range 20 –...
- Page 26 U1000MKII-HM User Manual MODBUS SETUP MENU Invalid & Range 1.0 to 126.0 Modbus Address: Valid & Modbus Baud: 38400/19200/9600/4800/ 2400/1200 Select & Modbus Comms: 8-None-2/8-None-1/ 8-Odd-1/8-Even-1 Select & Figure 17 Modbus menu Issue 1.3 Apr 19...
- Page 27 U1000MKII-HM User Manual PULSE OUTPUT MENU Select Pulse: Off & OFF | ON Λ Test mode press V or generate a 20ms pulse On & Pulse Type: Flow Alarm press > to select Volume/Energy/Frequency & /FlowAlarm Energy & ...
- Page 28 U1000MKII-HM User Manual CALIBRATION MENU Damping Time [s]: Invalid & Range 0.00 – 0.50 Zero Cut-off: 0.02 m/s 0.02 m/s V To Set Valid & Zero Offset: Zero Offset Averaging…9 0.000 l/min To Clear Done Invalid & ...
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Page 29: Diagnostics Menu
U1000MKII-HM User Manual 10 Diagnostics Menu The diagnostics menu provides some additional information about the heat meter and its setup. The > menu can be accessed by pressing the key from flow reading screen. The menu shown below describes the various diagnostics items. - Page 30 U1000MKII-HM User Manual Gain – a decibel number between -5dB and 80dB – lower is better, should be around 40dB or below. Above 60dB need to Gain 81dB SNR 11dB question the installation. DT 135.818 ns Signal/Noise ratio in dB, scale is 0 to 80dB –...
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Page 31: Relocation Of Guide Rail
U1000MKII-HM User Manual 11 Relocation Of Guide Rail If it is necessary to relocate the guide rail and sensor assembly use the following procedure. 1. Remove complete assembly from the pipe. 2. Undo the screw at the end of the guide rail and gently lift the same end as shown. -
Page 32: Appendix I - U1000Mkii-Hm Specification
U1000MKII-HM User Manual 12 Appendix I – U1000MKII-HM Specification Table 1 lists the U1000MKII-HM Product Specification. General Measuring Technique Transit time Measurement channels Timing Resolution ±50ps Turn down ratio 200:1 Flow velocity range 0.1 to 10m/s bidirectional Applicable Fluid types Clean water with <... - Page 33 90% RH at 50°C Max Display 2 line x 16 characters Viewing angle Min 30° Active area 58mm (W) x 11mm(H) Keypad Format 4 key tactile feedback membrane keypad Table 1 (cont.) U1000MKII-HM Product Specification. Issue 1.3 Apr 19 Page 33...
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Page 34: Appendix Ii - Default Values
U1000MKII-HM User Manual 13 Appendix II – Default Values The settings will be configured at the factory for either metric or imperial units. Parameter Default Value Parameter Default Value Dimensions Calibration Factor 1.000 Flow Rate l / min Zero Cut-off 0.02 m / s... -
Page 35: Appendix Iii - Error And Warning Messages
U1000MKII-HM User Manual 14 Appendix III – Error and Warning Messages Error Messages Error Messages are displayed as a number in the diagnostics menu. Contact Micronics if other messages appear. Common Error Message Error Message Error Meaning None or 0... -
Page 36: Declaration Of Conformity
U1000MKII-HM User Manual Modbus Error Messages (if modbus fitted) Transmitter Length (no of Test case CRC-16 Address Command Start Register registers) [2 bytes] [2 bytes] [1 byte] [1 byte] [2 bytes] No error 0x01 0x03 0x00 0x00 0x00 0x20 0x44... - Page 37 U1000MKII-HM User Manual 2. When programming a Frequency Pulse output the frequency is limited to the range 1 to 200 Hz. If an invalid value is entered then the following warning message is displayed. Range 1 - 200 3. When programming a Volume Pulse output the pulse width is limited to the range 3 to 99ms. If an invalid value is entered then the following warning message is displayed.
- Page 38 U1000MKII-HM User Manual Issue 1.3 Apr 19 Page 38...
- Page 39 Micronics U1000MKII-HM User Manual Issue 1.3 Apr 19 Page 39...