Micronics U1000MKII-FM User Manual Download

Page: 37 / 56

Micronics

U1000MKII User Manual

Issue 3.1 July 19

Page 33

The following registers are available.

Register

Offset

Type

Typical

Contents

Meaning

Notes

n/a

Byte

0x01

Instrument Address

n/a

Byte

0x03

Instrument Command

n/a

Byte

0x40

Number of bytes to

read

Int-16

0x00

Device ID

0xAC

U1000MkII-FM/HM

0xac

Int-16

0x00

Status

0x0000 OK

Not[0x0000] Fault

0x00

Int-16

0x00

System Type

U1000MkII-HM only

0x04 Heating system

0x0C Chiller system

0x04

Int-16

0x00

Serial Identifier

0x01

Int-16

0x23

0x45

Int-16

0x60

0x00

IEEE754

float

0x40

Measured Velocity

Units in m/s

0x1f

0x67

0xd3

IEEE754

float

0x41

Measured Flow

Units in m

/hr for Metric

Units in US Gal/m for

Imperial

0x8c

0xd8

0xb0

IEEE754

float

0x42

Calculated Power

(U1000MkII-HM only)

Units in kW for Metric

Units in BTU/s for

Imperial

0x1c

0x2e

0x34

IEEE754

float

0x44

Calculated Energy

(U1000MkII-HM only)

Units in kWh for Metric

Units in BTU for

Imperial

0x93

0xc6

0xe8

Summary of Contents for U1000MKII-FM

Page 1: ...eter U1000MKII HM Clamp on Ultrasonic Heat Meter User Manual U1000MKII HM shown Micronics Ltd Knaves Beech Business Centre Davies Way Loudwater High Wycombe Bucks HP10 9QR Telephone 44 0 1628 810456 E...

Page 2: ......

Page 3: ...Connections if fitted 8 2 2 5 M Bus Connections if fitted 10 2 2 6 Temperature Sensor Probes U1000 HM only 12 2 3 Switch On 14 2 3 1 U1000MkII FM 14 2 3 2 U1000MkII HM 15 2 4 Adjust Flow Sensor Separ...

Page 4: ...itted 32 4 4 M Bus if fitted 35 4 4 1 Acknowledge Function 35 4 4 2 Select Slave Function 36 4 4 3 Data Transfer Functions 36 4 4 4 REQ_UD2 REQUEST DATA 37 4 4 5 RSP_UD2 RETURN DATA 38 4 4 6 Switch Ba...

Page 5: ...System BEMS The electronics and sensor housings form an integral unit which attaches to the pipe using the supplied hose clips Power to the unit is provided by an external 12 24V DC 24V AC power supp...

Page 6: ...nt from the upstream transducer red to the downstream transducer blue as shown in the lower half of Figure 1 The speed at which the ultrasound is transmitted through the liquid is accelerated slightly...

Page 7: ...aptors for fixing sensor assembly to pipes with an OD less than 60mm 2 p n 225 5005 U1000 SMALL PIPE V CLAMP p n 225 5009 U1000 VERY SMALL CIRCLE PIPE CLAMP 5 U1000MkII HM only Non releasable stainles...

Page 8: ...requency or Alarm functions are enabled Select Selection key Choose between options on the display Decrease Down Decrement the value of each digit in numeric entry fields Increase Up Increment the val...

Page 9: ...the adaptors provided see page 17 f Remove the sensor holding screws See page 18 4 Connect the two wires from the Sensor Assembly to the Electronics Module see page 19 DO NOT CLIP THE ELECTRONICS MODU...

Page 10: ...BSTRUCTION THAT DISTORTS THE UNIFORMITY OF THE FLUID FLOW PROFILE SEE PAGE 46 MICRONICS LTD ACCEPTS NO RESPONSIBILITY OR LIABILITY IF PRODUCT HAS NOT BEEN INSTALLED IN ACCORDANCE WITH THESE INSTRUCTIO...

Page 11: ...2 Connect Power and Signal Cables This section explains how to connect power and signal cables to the Electronics Module 2 2 1 Power Supply The U1000MKII will operate within the voltage range 12 24V D...

Page 12: ...ly The isolated 4 20mA is a current source and can drive into a maximum load of 620 The 4 20mA current output is available at the Red and Black wires The polarities are shown in Figure 6 The alarm cur...

Page 13: ...ISH BETWEEN THE BLACK WHITE AND BROWN WHITE PAIRS For reliable operation of a Modbus network the cable type and installation must comply with requirements in the Modbus specification document MODBUS o...

Page 14: ...N 2 OPTIONAL GND SCREEN 3 M BUS BOTH WHITES 4 Figure 10 M Bus Connector Cable Part Binder 99 9210 00 04 Front View V 5V or 12V RS485 RS485 GND 0V 120 270 270 for 5V 1K for 12V Screen U1000 Mk2 Brown W...

Page 15: ...CK SLEEVE TO DISTINGUISH BETWEEN THE BLACK WHITE AND BROWN WHITE PAIRS For reliable operation of a M bus network the cable type and installation must comply with requirements in the M bus specificatio...

Page 16: ...he Temperature Sensor Probes connections These plug into the right hand side of the Electronics Module U1000 Mk2 M Bus Master Brown White Black U1000 Mk2 Spur Length Cables of any specified length can...

Page 17: ...U1000MKII User Manual Issue 3 1 July 19 Page 13 Figure 13 U1000 HM Temperature Probe Wiring U1000 HM COLD HOT White White Red Red White White Red Red U1000 HM Temperature Probe Wiring 4 3 1 2 Solder...

Page 18: ...t the pipe material by using the and keys to scroll through the list Press to confirm the material Select the fluid using the key Press to confirm the fluid name The unit now shows the correct flow se...

Page 19: ...ns Press to confirm the setting Select which side the electronics unit is installed using The unit is preconfigured for Flow Press to confirm the setting Select the fluid using Press to confirm the fl...

Page 20: ...s indicated on the display e g D5 3 With the flow sensors in the correct positions tighten the sensor holding screws so that the sensors are secure 2 4 Apply Gel Pads 1 Apply a gel pad centrally onto...

Page 21: ...its underneath the pipe as shown below IMPORTANT DO NOT USE THESE ADAPTORS IF THE PIPE HAS AN OUTSIDE DIAMETER GREATER THAN 60MM Figure 16 Pipe adaptors in position 40 60mm OD left less than 40mm OD r...

Page 22: ...46 This minimises the effect of any flow turbulence resulting from entrained air along the top of the pipe and sludge at the bottom Figure 19 Sensor Assembly clamped at 45 2 6 Remove Sensor Holding Sc...

Page 23: ...URE DESCRIBED BELOW AND USED WITH THE CABLE LENGTH SUPPLIED EXTENDING OR SHORTENING THE CABLES WILL NEGATE THE CALIBRATION OF THE SENSORS The temperature sensors must be located at the input and outpu...

Page 24: ...t Yes and press the Enter key to display the Attach Sensors screen 5 Press the Enter key again and wait for instrument to return to the Zero Temp Offset screen 6 Switch off the power to the Electronic...

Page 25: ...or reliable operation 2 9 2 U1000MkII HM Press The unit checks for a valid flow signal If a valid signal is found signal strength and flow rate are displayed The signal strength should be at least 40...

Page 26: ...amation mark and no pulses will be generated If the flow value is displayed as this indicates that there is no usable signal from the flow sensors The cause of this could be Incorrect pipe data Sensor...

Page 27: ...r Total Flows screens see page 29 3 1 Accessing the Menus Ensure that the instrument is in Flow Reading Total Flow Temperature dT Total Energy Instant Power or Total Flow modes then press Enter 71360...

Page 28: ...its gal min gal h Inches Invalid mm Invalid Valid Valid Vel m s m3 Select Select Valid Flow USgal Impgal Vel ft s Pipe Material M Steel Plastic Copper S Steel Set Separation B 3 Instrument Fluid Glyco...

Page 29: ...dbus Menu 3 4 M Bus Menu Modbus Address 103 Modbus Baud 38400 19200 9600 4800 2400 1200 Range 1 0 to 126 0 103 Invalid Valid Modbus Comms 8 None 2 8 None 1 8 Odd 1 8 Even 1 Select Select M Bus Pri Add...

Page 30: ...U1000MKII User Manual Micronics Page 26 Issue 3 1 July 19 3 5 Current Output Menu U1000MkII FM only Select 4 20mA ON OFF Flow 20mA 1000 0 Flow 4mA 0000 0 OFF ON Valid Valid...

Page 31: ...press V or to generate a 20ms pulse Invalid Select Level Pulse Type Volume Energy HM only Frequency Flow Alarm Range 3 99 50 ms Range 1 200 200 Invalid Off Energy Pulse 1 10 100 kWh or 1 Mwh 1 10 100...

Page 32: ...ELS 3 8 Volume Total Menu Damping Time s 10 20 30 50 or 100 Zero Offset 0 000 m s Range 0 00 0 50 0 02 m s Done 71360 Zero Offset Averaging 9 To Clear V To Set Valid Invalid Calibrat Factor 1 000 Rang...

Page 33: ...ignal Loss Alarm On 500 0 l min Alarm Off Signal Loss Frequency 100 00 Hz This screen will display the Errors A number between 0 255 will be displayed If no errors reported None is displayed The flow...

Page 34: ...ed for most mechanical counters Formula to obtain Volume per Pulse based on a default 50ms pulse width Volume per Pulse maximum flow rate in litres per minute 600 Example for maximum flow rate of 500...

Page 35: ...pen but the user can select between N O and N C There is a 2 5 hysteresis on the switching of the output Once the low flow alarm is activated the flow rate must rise by 2 5 more than the set value to...

Page 36: ...le operational while the flow reading volume total energy total power or temperature screens are displayed The instrument responds to the read holding registers request CMD 03 If the flow reading is i...

Page 37: ...m Type U1000MkII HM only 0x04 Heating system 0x0C Chiller system 0x04 3 Int 16 0x00 Serial Identifier 0x01 4 Int 16 0x23 0x45 5 Int 16 0x60 0x00 6 IEEE754 float 0x40 Measured Velocity Units in m s 0x1...

Page 38: ...Degrees Celsius for Metric Units in Degrees Fahrenheit for Imperial 0x00 19 0x00 0x00 20 IEEE754 float 0x60 Measured Volume Total Units in m3 for Metric Units in US Gal for Imperial 0xef 21 0x3c 0x1c...

Page 39: ...it and the following bit rates are supported 300 2400 and 9600 baud The U1000 MKII will only respond to M Bus requests while operational while the flow reading volume total energy total power or tempe...

Page 40: ...16 C FIELD INITIALISE SLAVE 0x73 A FIELD USE SECONDARY ADDRESSING 0xFD CI FIELD INITIALISE SLAVE 0x52 M Bus IIN BYTE 1 0xXX M Bus IIN BYTE 2 0xXX M Bus IIN BYTE 3 0xXX M Bus IIN BYTE 4 0xXX MANF ID BY...

Page 41: ...0x73 C FIELD SEND_UD 0x73 A FIELD SLAVE PRIMARY ADDRESS 0xXX A FIELD USE SECONDARY ADDRESSING 0xFD CI FIELD SEND DATA TO SLAVE 0x51 CI FIELD SEND DATA TO SLAVE 0x51 DIF REQUEST ALL DATA 0x7F M Bus IIN...

Page 42: ...Bus IIN BYTE 1 12 BYTE FRAME HEADER 1 0xXX M Bus IIN BYTE 2 1 0xXX M Bus IIN BYTE 3 1 0xXX M Bus IIN BYTE 4 1 0xXX MANF ID BYTE 1 1 0xCD MANF ID BYTE 2 1 0x54 VERSION NUMBER 1 0x01 DEVICE TYPE ID 1 0x...

Page 43: ...CONTROL LONG FRAME PRIMARY ADDRESSING SECONDARY ADDRESSING NAME CODE NAME CODE START 0x68 START 0x68 LENGTH 0x03 LENGTH 0x0B LENGTH 0x03 LENGTH 0x0B START 0x68 START 0x68 C FIELD SEND_UD 0x73 C FIELD...

Page 44: ...ME PRIMARY ADDRESSING SECONDARY ADDRESSING NAME CODE NAME CODE START 0x68 START 0x68 LENGTH 0x03 LENGTH 0x0B LENGTH 0x03 LENGTH 0x0B START 0x68 START 0x68 C FIELD SEND_UD 0x73 C FIELD SEND_UD 0x73 A F...

Page 45: ...ME PRIMARY ADDRESSING SECONDARY ADDRESSING NAME CODE NAME CODE START 0x68 START 0x68 LENGTH 0x03 LENGTH 0x0B LENGTH 0x03 LENGTH 0x0B START 0x68 START 0x68 C FIELD SEND_UD 0x73 C FIELD SEND_UD 0x73 A F...

Page 46: ...06 LENGTH 0x0E START 0x68 START 0x68 C FIELD SEND_UD 0x73 C FIELD SEND_UD 0x73 A FIELD SLAVE PRIMARY ADDRESS 0xXX A FIELD USE SECONDARY ADDRESSING 0xFD CI FIELD 0x51 CI FIELD 0x51 DIF 8 BIT INTEGER 0x...

Page 47: ...me end of the Electronics Module as shown below 4 The opposite end of the Electronics Module can now be released from the Sensor Assembly Figure 24 Separating Sensor Assembly and Electronics Module 5...

Page 48: ...s l min m3 min m3 hr Volume litres m3 Selectable units for Imperial inches Velocity ft s Flow rate gal min gal hr USgal min USgal hr Volume gals USgals Totaliser 14 digits with roll over to zero Lang...

Page 49: ...IP54 Not verified by UL Flammability Rating UL94 V 2 HB Dimensions 250mm x 48mm x 90mm electronics module sensor assembly Weight 0 5kg Environmental Maximum Pipe temperature 0 C to 85 C Operating tem...

Page 50: ...the results should not be considered more than an approximation as The fluid speed of sound can vary between 1480ms and 1578ms No temperature compensation curve is available for water glycol mixes Th...

Page 51: ...possibly sludge at the bottom of the pipe Experience has shown that the most consistently accurate results are achieved when the sensors are mounted at 45 with respect to the top of the pipe In chill...

Page 52: ...U1000MkII HM only 1 2 RTD Tcold failed U1000MkII HM only 1 4 TOFM signal lost 1 8 TOFM board failed 1 16 TOFM window failed 1 32 TOFM sensor type failed 1 64 TOFM I2C failed 1 128 6 5 2 Example Error...

Page 53: ...byte 1 byte 2 bytes 0x01 0x03 None n a n a Example of a good message 0x01 0x8C 0x01 0x85 0x00 ILLEGAL FUNCTION the only acceptable command is 0x03 0x01 0x83 0x02 0xC0 0xF1 ILLEGAL DATA ADDRESS incorre...

Page 54: ...ure the temperature sensors are correctly plugged in and are both at the same temperature When programming a Frequency Pulse output the frequency is limited to the range 1 to 200 Hz When programming a...

Page 55: ...Micronics U1000MKII User Manual Issue 3 1 July 19 Page 51 7 DECLARATION OF CONFORMITY...

Page 56: ......

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