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NIVELCO MicroTREK HT-700 Manual

2-wire guided microwave level transmitter
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Summary of Contents for NIVELCO MicroTREK HT-700

  • Page 1 htk701en21p02 ♦ 1/56...
  • Page 2 LEVEL MEASUREMENT TECHNICAL CONCEPTS htk701en21p02 ♦ 2/56...
  • Page 3 Certificates Reference document number ATEX, Certificate No.: BKI22ATEX0003 X htk701hu21p02-b IECEx, Certificate No.: htk701en21p01-b htk701en21p02 ♦ 3/56...

  • Page 4: Table Of Contents

    C O N T E N T S 1.INTRODUCTION ..................6 4.INSTALLING ................... 21 2.ORDER CODES ..................7 4.1. Handling and Storage .............. 21 2.1. MicroTREK H–700 with cable probe.......... 7 4.2. Mounting on Containers ............22 2.2. MicroTREK H–700 with rod probe ..........8 4.2.1.General mounting instructions ..........
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  • Page 6: Introduction

    Thank you for choosing a NIVELCO instrument. 1. INTRODUCTION Application The MicroTREK 2-wire guided microwave level transmitter measures the distance to the surface of liquids, solids, and granules, from which the device calculates and transmits the level, volume, or mass values as required.

  • Page 7: Order Codes

    2. ORDER CODES NOT ALL COMBINATIONS POSSIBLE 2.1. M TREK H–700 – ICRO WITH CABLE PROBE MicroTREK H Probe Probe Type Code Probe / Process connection Code Housing Code Code Code Output Code length length Transmitter 1" BSP + HART Aluminum ®...

  • Page 8: Microtrek H-700 With Rod Probe

    2.2. M TREK H–700 – ICRO WITH ROD PROBE MicroTREK H – – Probe Probe Type Code Probe / Process connection Code Housing Code Code Code Output Code length length Transmitter 1" BSP + HART Aluminum ® Mono rod, Transmitter high- 1"...

  • Page 9: Microtrek H-700 With Rod Or Coaxial

    2.3. M TREK H–700 – ICRO WITH ROD OR COAXIAL MicroTREK H – – Probe Probe Type Code Probe / Process connection Code Housing Code Code Code Output Code length length Transmitter 1½" BSP + HART Aluminum ® Mono rod Transmitter high- 1½"...

  • Page 10: Technical Data

    3. TECHNICAL DATA 3.1. G ENERAL With plastic housing With aluminum housing With stainless steel housing H–8–4 H–7–4, 5, 6, 8 H–9–4, 5, 6, 8 Measured values Distance between the reference point and the plane of the reflection (surface of the material); derived values: level, volume or weight Input data Measuring range...

  • Page 11: Probe Properties

    3.2. P ROBE PROPERTIES HK–– HA–– HL–– HR–– HS–– HN–– HT–– HD–– HB–– Type HV–– HP–– HZ–– HJ–– HU–– HE–– HC–– HW–– HH–– 4 mm cable 8 mm cable 4mm dual cable Version Dual rod Coaxial (0.15") (0.3") (0.15") Maximum measuring 30 m (100 ft) 3 m (10 ft) 6 m (20 ft)

  • Page 12: Coated Probe Properties

    3.3. C OATED PROBE PROPERTIES HF–– Type HX–– HY–– HM–– HQ–– HO–– HI-- HG–– ∅4 mm (0.15") Fully PP-coated Version ∅4 mm (0.15") FEP-coated cable fully FEP / PFA- Fully PFA-coated rod coated cable Maximum measuring range 30 m (100 ft) 3 m (10 ft) Minimal measuring range ε...

  • Page 13: Dimensions

    3.4. D IMENSIONS HTK–– HTA–– HTL–– HTR–– HTS–– HTN–– HTT–– HTD–– HTB–– HTV–– HTP–– HTZ–– HTJ–– HTU–– HTE–– HTC–– HTW–– HTH–– HTF–– HTX–– HTY–– HTM–– HTQ–– HTI–– HTG–– htk701en21p02 ♦ 13/56...

  • Page 14: Explosion Protection, Designation, Limit Values

    3.5. E XPLOSION ROTECTION ESIGNATION IMIT ALUES 3.5.1. ATEX Intrinsically safe protection (Ex ia) – ATEX Certificate No.: BKI22ATEX0003 X Metal housing High-temperature version with metal housing with SAP display without SAP display with SAP display without SAP display HB––6, 8 Ex HT––6, 8 Ex HP––6, 8 Ex HH––6, 8 Ex...

  • Page 15: Atex Combustible Dust Protection (Ex T)

    3.5.2.2 For high- temperature transmitters AZARDOUS GAS ATMOSPHERES XPLOSIVE DUST ATMOSPHERES HH/P–7–8 Ex HH/P–7–6 Ex Temperature data HH/P–9–6 Ex HH/P–9–8 Ex Ex ia IIC, Ex ia IIB Ex ia IIIC +80 °C +90 °C +100 °C +180 °C +80 °C +90 °C +100 °C +180 °C...

  • Page 16: Temperature Limit Data For Ex T Models

    3.5.4. Temperature limit data for ATEX (Ex t) approved models 3.5.4.1 For standard temperature transmitters Explosive dust atmospheres HT/B–7–9 Ex HT/B–7–5 Ex Temperature data HT/B–9–9 Ex HT/B–9–5 Ex Ex ta IIIC Ex ta/tb IIIC Highest process temperature +65 °C (149 °F) +80 °C (+176 °F) +90 °C (+194 °F) +100 °C (+212 °F)

  • Page 17: Iecex Intrinsically Safe Protection (Ex Ia)

    3.5.5. IECEx Intrinsically safe protection (Ex ia) – IECEx Certificate No.: Metal housing High-temperature version with metal housing with SAP display without SAP display with SAP display without SAP display HB––6, 8 Ex HT––6, 8 Ex HP––6, 8 Ex HH––6, 8 Ex Ex ia IIB T6…T4 Ga Ex ia IIC T6…T4 Ga Ex ia IIB T6…T3 Ga...

  • Page 18: Iecex Combustible Dust Protection (Ex T)

    3.5.6.2 For high- temperature transmitters Hazardous gas atmospheres Explosive dust atmospheres HH/P–7–8 Ex HH/P–7–6 Ex Temperature data HH/P–9–6 Ex HH/P–9–8 Ex Ex ia IIC, Ex ia IIB Ex ia IIIC +80 °C +90 °C +100 °C +180 °C +80 °C +90 °C +100 °C +180 °C...

  • Page 19: Temperature Limit Data For Ex T Models

    3.5.8. Temperature limit data for IECEx (Ex t) approved models 3.5.8.1 For standard temperature transmitters Explosive dust atmospheres HT/B–7–9 Ex HT/B–7–5 Ex Temperature data HT/B–9–9 Ex HT/B–9–5 Ex Ex ta IIIC Ex ta/tb IIIC Highest process temperature +65 °C (149 °F) +80 °C (+176 °F) +90 °C (+194 °F) +100 °C (+212 °F)

  • Page 20: Conditions For Safe Use

    FORM) must be filled and enclosed in the parcel. Download it from our website www.nivelco.com. The device must be sent back with a declaration of decontamination. A statement must be provided in the declaration that the decontamination process was successfully.

  • Page 21: Installing

    4. INSTALLING 4.1. H ANDLING AND TORAGE Lift the instrument using both hands, or if necessary, use a hoist. Do not lift the instrument Protect the instrument from mechanical impacts and falling. The electronics by the probe. It is a critically sensitive part. is a sensitive and fragile unit.

  • Page 22: Mounting On Containers

    1½" NPT threaded hole h ≤ Ød, where = nozzle height Ød = nozzle diameter The nozzle must not extend into the tank, Consult NIVELCO if the above condition cannot be as the protruding part interferes with the met! measurement! htk701en21p02 ♦...
  • Page 23 Mounting two devices Effects of material influx Using a protective tube Do not place the nozzle near the material inlet If two devices have to be mounted on one The floating lid is a common solution for petrochemicals. In pipe connector. tank, they must be spaced at least 2 m such cases, the use of a damping tube is recommended.
  • Page 24 Straightness and contact of measuring probes Using a stirrer with other fittings and distance from the bottom of the tank. After installation, the cable probes and the associated tensile weight There is no radiation cone along the probe. must be straight, tensioned, and away from other fittings (e.g., When measuring liquids, the use of a reference chamber or damping tube is mixer).

  • Page 25: Installing The Device For Measuring Solids

    4.2.2. Installing the Device for Measuring Solids False readings Coning and strong tensile force on the probe Do not let the probe touch the side of the Strong tensile force. The cable rope must not nozzle. be anchored when measuring solids. The device is mounted at a distance of half the radius of the tank from the top of the tank with a minimum lift nozzle height.

  • Page 26: Wiring

    4.3. W IRING Wiring in non-explosive environments 1. Take the device’s lid off. 2. Put the cable through the cable gland (½" NPT) to the terminal block. 3. Remove the outer insulation for ~80 mm (~3.15″) from the cable so the wires can be accessed, then strip the wires for 4 mm.
  • Page 27 Design of the measuring network in non-explosive environments Power supply Nominal voltage 24 V DC Maximum voltage (U 36 V DC Minimal voltage (U Depends on the impedance. (See diagram) Loop resistance, R loop HART cabel ammeter Minimum R 0 Ω HART Maximum R 750 Ω...

  • Page 28: Bus (Hart ® ) Communication

    N AND OMMISSIONING The MicroTREK 2-wire device is supplied by NIVELCO with the technical specifications requested by the customer, so it is ready for operation immediately after installation and wiring up. Measuring starts less than 20 seconds after switching on. Attention! The initial current consumption of the device is 3.5 mA right after switching on! If there is a change in the installation data due to shortening a cable probe, the set parameters must be changed according to the application before starting the measurement.

  • Page 29: Programming

    5. PROGRAMMING There are two ways to program the MicroTREK. Programming with the EView2 software − Programming with the SAP–300 display unit − 5.1. P ROGRAMMING WITH 5.1.1. Installing and Running EView2 If necessary, install the “EView2 HART Configuration Software” (hereafter EView2 ) according to Chapter 3 of the program manual. ®...
  • Page 30 Adjustable value range Name (number), function Description Default value Minimum measuring distance… probe The dead zone is the distance between the plane of the lower sealing surface of the mechanical length (P03) connection (the lower plane of the flange in the case of the flanged version) and the highest level in the Minimum measuring distance tank.
  • Page 31 Adjustable value range Name (number), function Description Default value System of measurement units, Path of parameters: units of measurement: “Settings” / Application” tab Selectable values: The units that can actually be used (length, volume, weight) change according to the unit system set according to this parameter.
  • Page 32 Adjustable value range Name (number), function Description Default value The unit of the transmitter number if the device is set for weight measurement. The device converts the Selectable values measured level into weight. Metric (EU): It is done by using a level-dependent (non-linear) function. −...
  • Page 33 Adjustable value range Name (number), function Description Default value The distance in "custom unit" is the distance in meters multiplied by P07 to get. The corresponding setting field only appears or is active if "custom unit" is selected in the unit system. 0.001…100 The reference of the multiplier is meter, the value of the conversion factor must always be given in Custom Unit multiplier (P07)
  • Page 34 Adjustable value range Name (number), function Description Default value This parameter determines the state that the current loop output draws in the event of a fault. For “Hold,” Selectable values: it keeps the last measured value (4… 20 mA), for “3.8 mA” and “22 mA” it keeps the indicated value until Hold −...
  • Page 35 Adjustable value range Name (number), function Description Default value Path to parameters: Special, identifying data “Device programming window (Advanced mode) / Special” tab Unique device address based on which the device can be identified and managed via the HART bus. ®...
  • Page 36 Adjustable value range Name (number), function Description Default value In the event that the PV measured value has reached the lower or upper switching value or an error 0…999 sec signal has occurred in the event of an error, the RELAY is activated and a change is visible on the relay output after this time delay.
  • Page 37 Standing cylindrical tank with dome Standing cylindrical tank with Standing rectangular tank Lying cylindrical tank Spherical tank bottom conical bottom 0…999 999 Typical dimensions in units of length for the tank type set in parameter P40 for volume calculation. Tank dimensions (P41…P45), for EView2 setting: “Device settings”...
  • Page 38 0.7…10 Adjusts the transmitted quantity by distance. If the value measured by the device differs from the value under real conditions, this multiplier can be used to adjust the result. The output value is User defined multiplier (P22), multiplied by the number set here. The default multiplier is 1, which does not change the output. Correction factor (measured/actual) EView2 setting: “Device settings”...
  • Page 39 5.1.2.4 Device “Echo Diagram” (Oscilloscope Function) Open the “Echo Diagram” window to display the device echo diagram. The “Device Echo map” window will appear. The diagram shows the reflection curve measured by the device. Press the “Refresh” button in the bottom row of the window (or press the F4 button while in the window) to refresh the chart or read the data. After a successful reading, a curve corresponding to the image below will appear on the graph (see Figure 1).

  • Page 40: Programming Example 1 (Using Eview2 )

    5.1.3. Programming Example 1 (Using EView2 ): Changing the actual tank height (10.000 m [33.000 ft]). To the probe (cable) length L (9.000 m [29.500 ft]) configured by the manufacturer, and saving the new parameter. Step Operation Entered data / value Open the “Device Setup”...
  • Page 41 Creating a volume table – (EView2 OC-table (OCT)) A conversion table has to be created using EView2 to measure volume. The volume values in the table are assigned to the measured levels. For asymmetrical and irregularly shaped containers, the accuracy of the volume measurement depends on the number of pairs of values associated.

  • Page 42: Programming With The Sap−300 Display Unit

    Housing material PBT fiberglass, plastic (DuPont  The plug-in module containing the SAP–300 LCD display (universal - can also be used in other NIVELCO devices, provided the device software supports SAP–300). Warning! The SAP–300 uses an LCD, do not expose the SAP–300 to prolonged exposure to strong heat or sunlight as the display may be damaged.

  • Page 43: The Behavior Of The Microtrek While Programmed Manually

    5.2.2. The Behavior of the MicroTREK while Programmed Manually By default, MicroTREK displays the main measurement data on the SAP–300 display (hereafter referred to as display). Enter the programming menu by pressing the button. Use the buttons to navigate through the menu items. Enter the selected menu item with the button.
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  • Page 45: Properties Of Microtrek Microwave Level Transmitter

    5.3. P TREK 2-W ROPERTIES OF ICRO ICROWAVE EVEL RANSMITTER This chapter discusses the following topics: - How does the transmitter measure the level, what factors play a role? - Setting up and illustrating the measuring scale of the device in five possible ways. - The role of gain adjustment in measurement.

  • Page 46: To Illustrate The Five Possible Configurations, The Following Fluid Level Measurement Settings Are Assumed

    5.3.2. To illustrate the five possible configurations, the The cases outlined on the right side of the figure above: 1. The “current output” range is shorter than the max. possible measuring following fluid level measurement settings are assumed range: The 4 and 20 mA adjusters are located inside the near and far dead - To illustrate the five possible configurations, the following fluid level zone on the probe, within the limits measurement settings are assumed:...
  • Page 47 Indications: “Echo lost”: echo is lost, “E”: tank is empty, “F”: tank is full, “Echo in blocking” is also passed. The same is true if the echo of the level is transferred to near blocking” in the nearby zone, “Echo in far blocking” in the remote zone. this range from the actual measurement zone.
  • Page 48 Signal gain example (automatic by default): Threshold line The threshold line is used to filter out interference. The principle of operation is as follows: Reflections in the area below the line: noise and disturbance signals must • not be selected as the echo peak of the measured level. However, as soon as the level reaches the interference, the amplitude of •...
  • Page 49 The Main threshold is defined by “1.”, “2.”, “3.” Adjustment is only permitted in justified cases: e.g.: elevated baseline, signal level, strong noise conditions close to the level transmitter! • Signals in the area below the two extremes and below the line are not selected. •...

  • Page 50: Typical Signal Forms

    Typical Signal Forms 5.3.4. The following diagrams show typical waveforms recorded in Echo diagram mode. Emitted pulse Emitted pulse Emitted pulse Emitted pulse Level signal Flange Flange Level signal Level signal Level signal Rod or cable probe in stage 1 gain Rod or cable probe in stage 2 gain Coaxial probe in stage 1 gain Coaxial probe in stage 2 gain...

  • Page 51: Troubleshooting

    *, display freezes (ESD). If the display remains frozen, the device may be damaged due to an ESD discharge and will need to be replaced. Contact NIVELCO! “Flange not found” state * The instrument is incorrectly programmed for a cable or rod Contact NIVELCO to address the fault.
  • Page 52 “Delay out of limits” state *, display The transmitted measurement signal freezes cannot be detected. The device may need to be replaced. Contact NIVELCO! The device will not operate as long as this error persists. “Negative voltage error” * Occurs when there is a problem with the time base of the measurement card circuit.
  • Page 53 Check the connection between the device and the power supply. The output current setting is incorrect. Perform the calibration if you have permission to do so, or contact NIVELCO. Display says the current output value This occurs when 4…20 mA / error 22 mA are programmed.
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  • Page 56 June 2022 NIVELCO reserves the right to change anything in this manual without notice! htk701en21p02 ♦ 56/56...

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