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Rotronic HygroLog NT Instruction Manual

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IN-E-LogNT-V1.2_11
Document code
HygroLog NT data logger version 1.2:
instruction manual
Document title
HygroLog NT Data Logger version 1.2
© 2007; Rotronic AG
Instruction Manual
Rotronic AG
Bassersdorf, Switzerland
Unit
Instruction Manual
Page
1 of 50
IN-E-LogNT-V1.2_11
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Summary of Contents for Rotronic HygroLog NT

  • Page 1 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 1 of 50 Document title HygroLog NT Data Logger version 1.2 Instruction Manual © 2007; Rotronic AG IN-E-LogNT-V1.2_11...

  • Page 2: Table Of Contents

    This manual is valid for instruments with firmware version 1.2x (see MENU - Instrument or check using the ROTRONIC HW4 software, Device Manager). Examples: 1.2a, 1.2b. Changes in the last character of the version number reflect minor changes in the internal software of the instrument that do not affect the manner in which the instrument should be operated.

  • Page 3: Overview

    (b) to configure the HygroLog NT and communicate with a PC, (c) to connect the HygroLog NT to a network and (d) to mount the HygroLog NT to a wall or to place the HygroLog NT on the optional desk-top stand.

  • Page 4: General Description

    9m / 30ft. Communication with the PC is on a one to one basis (no networking). Using either the optional Bluetooth transceiver or a network allows downloading data without removing the HygroLog NT from its location. A fail safe network is obtained by combining remote data monitoring and local data logging.
  • Page 5 HW4 to the minimum of 5 sec. Because of the requirement to keep track of the date and time, the HygroLog NT does not have a power on/off switch. Every minute, both the date and time are recorded to the internal EEPROM.

  • Page 6: Probes

    Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 6 of 50 Document title 2.2.2 Battery replacement To access the battery, remove the screw shown to the right and open the cover rubber cover.
  • Page 7 These probes permit to take full advantage of all the features and functions of the HygroLog NT. The ROTRONIC HygroClip digital probes are highly accurate and are calibrated entirely by means of software (no adjustment potentiometers). Because calibration and other data are stored in the probe non-volatile memory, the probes are fully interchangeable.
  • Page 8 Document Type Page 8 of 50 Document title The ROTRONIC HygroClip digital probes are available in different configurations so as to meet the requirements of each application: HygroClip S measurement in air max. 85°C (185°F) – wire mesh filter...

  • Page 9: Connector Identification

    Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 9 of 50 Document title Note: the above probes have a 7-pin connector. An adapter cable such as the T7-03-B5 is required for connection to inputs 2 and 3 the HygroLog NT3 or to inputs 4 to 7 of the docking station (see Accessories).

  • Page 10: Memory

    The main memory is a plug-in flash memory card. As a standard, the HygroLog NT ships with a 16 MB card. This card allows the recording of up to 400,000 values in text file format (unprotected) or up to 750,000 values in binary file format (protected).

  • Page 11: Models With Internal Bluetooth Transceiver

    (UART interface). When installed on a PC, the ROTRONIC HW4 software is used to configure the HygroLog NT, to program its logging function, to download the recorded data and to adjust the probes connected to the logger against a reference environment.
  • Page 12 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 12 of 50 Document title Docking stations with internal electronics and PC interface: ● DS-NT2: receptacle for AC adapter, one serial port (RS232) and one RS485 port (multi-drop).
  • Page 13 Installation is the same for all models of docking station. To mount the docking station to a wall, use the two holes shown on the right. The HygroLog NT can then be attached to the docking station as explained below. To attach the HygroLog NT to the...
  • Page 14 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 14 of 50 Document title 2.10.3 Connector identification DS-U1 Probe input 4 Probe input 6 Probe input 7 Probe input 5...
  • Page 15 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 15 of 50 Document title DS-U4 / DS-U4-4-20 Probe input 4 Probe input 6 RJ45 Probe input 5 RS-485...
  • Page 16 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 16 of 50 Document title DS-PT-2 Input 4: RTD Input 6: RTD Input 7: RTD Input 5: RTD RS-485...
  • Page 17 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 17 of 50 Document title DS-R-1 Relay 1 Relay 2 Not used Not used RS-485 Logical Inputs 12VDC Power...
  • Page 18 ● Third-party analog probes: single channel probes (one signal), voltage output signal within the range of 0 to 2.5 VDC, supply voltage: 7.6…9 VDC (direct from the HygroLog NT battery) or 12 VDC when using an AC adapter, maximum current consumption: 10 mA.

  • Page 19: Pin-Out Diagrams

    (global offset). 2.10.5 Logical inputs (on / off) Several models of docking station allow the HygroLog NT to process up to 2 logical inputs. Typically this is used to monitor a relay contact, a door contact, etc. 2.10.6 Relay contacts Docking station model DS-R-1 features two independent relays, each with 3 contacts: normally closed, normally open and common.
  • Page 20 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 20 of 50 Document title Remote Mode (HygroLog NT2 / NT3) - solder side of matching male connector 1: RX...
  • Page 21 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 21 of 50 Document title Logical inputs (docking station) - solder side of matching male connector 1: + 3.5 VDC...

  • Page 22: Operating Limits (Electronics Only)

    The HygroClip probes have generally wider operating limits (see individual probe specifications). 2.13 Internal firmware functions 2.13.1 Calculated parameter Using the HW4 software, the HygroLog NT can be set to compute for each HygroClip probe one of the following psychrometric parameters. Dew point (Dp)
  • Page 23 Some of the above parameters require barometric pressure as an input. If an analog pressure probe is connected to one of the HygroLog NT inputs, the logger can be set to use the measurement from this probe. When no pressure probe is being used, a fixed pressure value can be used.
  • Page 24 This value is used for both the low and the high alarm conditions. The HygroLog NT has a red LED which can be set with HW4 to flash whenever the value of any parameter corresponds to an alarm condition. The LED can be set to flash only as long as the alarm condition exits or it can be set to provide a durable alarm and, in this case, it will to keep flashing until the alarm is reset.
  • Page 25 Sleep function is effective both in the measure and in the record mode. The display of the HygroLog NT can be set to be always on. It can also be set to automatically go blank after 30 seconds, 1, 5, 10 or 20 minutes when no key is being pressed or when there is no communication with a PC.
  • Page 26 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 26 of 50 Document title - Most recent adjustment to the PC date and time: date and time, user and HW4 product ID...
  • Page 27 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 27 of 50 Document title HygroClip probe A HygroClip probe was removed from input # or the input can no...

  • Page 28: Required Accessories / Equipment

    ERES regulatory compliance In order to comply with ERES regulatory requirements (Electronic Records and Electronic Signatures), the HygroLog NT should be used together with the ROTRONIC HW4 software – Professional Edition. HW4 is designed to keep track of logger configuration changes, programming changes and of any probe adjustment.

  • Page 29: Getting Started

    Page 29 of 50 Document title If the HygroLog NT has a display and keypad, disable the MENU key (see HW4 manual - Device Manager - HygroLog NT - Keypad). Getting started Insert a 9V alkaline battery in the HygroLog NT as explained under Hardware Description - Power.

  • Page 30: Functionality And Settings Accessible Only With Hw4

    30 of 50 Document title Device Manager Configuration of the HygroLog NT data logger and docking station Data Logging Programming of the data logging function. Compared to the equivalent function available directly on models with a display and keypad, HW4 offers added functionality such as scheduled recording for each individual input at a future date / time.

  • Page 31: Stand-Alone Operation

    The HygroLog NT has two main operating modes: measure and record. ● Measure mode: the HygroLog NT defaults to this mode when it is not recording any data. What happens in this mode depends on whether or not the HygroLog NT is communicating with a When there is no communication with a PC, the model without display is in a low power consumption mode and just keeps track of the date and time.

  • Page 32: Display And Keypad

    Depending on the model, the HygroLog NT is equipped with a display and a keypad. Display The HygroLog NT uses a monochrome graphic LC display with a resolution of 128 x 88 pixels. The active area of the display measures 48 x 33 mm. The normal function of the display is to show the most recent measured values, one at a time.

  • Page 33: Display Modes

    Measured value 2 (usually temperature) Date and time Probe / input description (as entered with HW4 when configuring the HygroLog NT) Note: the bottom line of the display remains empty if no description was entered for the probe or input.
  • Page 34 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 34 of 50 Document title ● Logging functions (set individually for each input, cannot be scheduled for a future date / time):...
  • Page 35 Adjust menu item is active (exit Adjust to update the value). 7.4.5 Settings This menu item allows both to review and to modify some of the settings of the HygroLog NT and to cancel (reset) a permanent alarm condition. ● Trend: turn trend indicators on or off.
  • Page 36 Document title - Press on the ENTER key. 7.4.6 Instrument This menu item provides information on the HygroLog NT. No changes can be made from within this menu item. ● Release: firmware release ● S/N: serial number ● Address (network address of the logger) ●...

  • Page 37: Adjusting A Hygroclip Probe

    ● RefValue: Use the UP or DOWN key to change the numerical value of the reference to be used for the adjustment. For a faster change of the numerical value, keep the key pressed down. If using a ROTRONIC humidity standard (Humi RHS), use the mean value (at 23°C) written on the certificate supplied with the standard.

  • Page 38: Multi-Point

    Note: this function is not available with the HygroLog NT1 Definition The Multi-point function permits the full calibration of a ROTRONIC HygroClip digital probe against a known reference environment. This function is designed to permit calibration at 2 temperature values and at up to 4 relative humidity values.
  • Page 39 Always adjust the probe first at the low value (T-low). The HygroLog NT assumes that any temperature below 40°C (104°F) is T-low and this is used to compute the offset. The gain is computed from the high temperature value (T-high), using 20°C as a fixed pivot...

  • Page 40: Warnings And Useful Tips

    • In the case of a docking station with an internal Ethernet (TCP/IP) module, the Baud rate of the Ethernet module must be the same as the Baud rate of the HygroLog NT used with the docking station. © 2007; Rotronic AG...

  • Page 41: Ethernet Local Area Network

    Devices and internal Ethernet modules with mismatched Baud rate will not communicate together. • The Baud rate configuration of a ROTRONIC device can be changed with the Device Manager function (Digital Interface tab) available from within the HW4 software. •...

  • Page 42: Rs-485 Multi-Drop Network

    HW4 software, but each RS-485 multi-drop network is limited to 64 devices. A docking station with HygroLog NT can be used either as a slave or a master, without special configuration. The master is automatically the device that is directly connected to the PC or LAN by means of a RS- 232 port, USB port or TCP/IP port.

  • Page 43: Specifications

    - Docking stations with Ethernet (TCP/IP) interface: please note that the Baud rate of the HygroLog NT and the Baud rate of the docking station internal Ethernet module should be set to the same value The RS485 wiring can be done with a twisted pair (2-wire, telephone type) and wall mounted RJ45 receptacles (see Electrical installation guidelines in this manual).
  • Page 44 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 44 of 50 Document title Event logging Practically unlimited number of events such as configuration changes, alarm, etc. Internal Menu...
  • Page 45 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 45 of 50 Document title Docking Station Dimensions in mm © 2007; Rotronic AG IN-E-LogNT-V1.2_11...

  • Page 46: Accessories

    Probe extension cable with T7 connectors and signal amplifier, 2 to 200 meter (6 to 656 ft) – restrictions may apply, please consult factory DS-NT0 Basic docking station – used as a bracket to mount the HygroLog NT to a wall DS-NT1 Same as DS-NT0 –...

  • Page 47: Communications Protocol

    For customers who for any reason cannot use the HW4 software a description of the HygroLog NT / docking station communications protocol is available in a separate document. Document Com_NT.pdf is available directly from ROTRONIC and can also be downloaded from our web site.

  • Page 48: Electrical Installation Guidelines

    When planning an installation, the rules provided by EN 50170 should be followed under consideration of local circumstances to determine the position of machines and equipment. All ROTRONIC HygroClip products are tested for Electromagnetic Compatibility according to following European standards: EN 61000-6-3 + EN 61000-6-1 (residential)
  • Page 49 Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 49 of 50 Document title Lightning protection Cabling in areas with a risk of lightning requires a lightning protection. For cabling underground in between buildings, we recommend the use of special fiber optic cables.

  • Page 50: Document Releases

    Rotronic AG IN-E-LogNT-V1.2_11 Bassersdorf, Switzerland Document code Unit HygroLog NT data logger version 1.2: Instruction Manual instruction manual Document Type Page 50 of 50 Document title The following points should also be observed: • Close the parasitic circuit • Connect all devices to the potential equalizing cable as often as possible. Electrical conductors such as machine elements, metal tubes or supporting constructions should be integrated into the system.

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