E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 1 of 35 HygroFlex HF8 Humidity Temperature Transmitter User Guide © 2012; Rotronic AG E-M-HF8-V2_10
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title Instruction Manual Document Type Page 2 of 35 Table of contents 1 2 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 4 4.1 4.2 4.3 5 5.1 5.2 5.3 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 8 8.1 8.2 8.3 8.4 8.5 8.6 9 10 10.1 10.2 11 12 13 Overview ..................................................................................................
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title Instruction Manual Document Type Page 3 of 35 Applicability: This manual applies to all instruments of the HygroFlex HF8 series with firmware version 2.x, where 2.x can be 2.0, 2.1, etc. Changes to the last digit of the version number reflect minor firmware changes that do not affect the manner in which the instrument should be operated.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document Type Page Document title 2 Instruction Manual 4 of 35 Dimensional drawings Dimensions in mm 3 General description 3.1 Power supply options The HF8 can be ordered with different power supply options. Please verify the product identification label to determine which power supply option is installed on your transmitter.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title c) Instruction Manual Document Type Page 5 of 35 Option 3: 85 to 265 VAC, 5 Watt, 50-60 Hz, galvanically isolated As with option 2, the HF8 is equipped with an internal power module that provides galvanic isolation between power and the analog signals.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 6 of 35 Pin-Out Diagram 1: RXD (UART- digital probe) 2: GND (digital and power) 3: V+: digital pbe: 3.3 VDC nominal, analog pbe: maximum 5.0 VDC, 10 mA 4: AGND (analog ground) 5: Not used 6: 1-channel analog probe signal : + 0.0 to 3.3 VDC 7: TXD (UART – digital probe) 3.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title Instruction Manual Document Type Page 7 of 35 A custom calculation can be associated with any of the HF8 inputs. When associated with an input, the custom calculation can in turn be associated with any of the HF8 analog outputs.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 8 of 35 3.8.2 RS-485 serial interface The RS-485 interface can be used to connect together up to 64 devices in a multi-dropped arrangement. In principle, an unlimited number of such networks can be monitored with the HW4 software, but each RS-485 multi-drop network is limited to 64 devices.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title Standard o o o o %RH Temperature Date and time Probe number 3-line o o o o %RH Temperature Calculated parameter Probe number 9 of 35 Large o o o %RH or temperature or calculated parameter shown in large characters Date and time Probe number The date and time are not shown Both the parameter and probe can be chang
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document Type Page Document title 3.13 Instruction Manual 10 of 35 HW4 Software compatibility The HF8 is best used with HW4 version 3.2.0 or higher. WARNING: do not use the HF8 with any HW4 version lower than 2.4.0 as this could damage the HF8 firmware and prevent normal operation.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 11 of 35 MEASUREMENT LOOP VALIDATION Function Description ► Simulator mode Used to make the HF8 generate fixed values for the humidity, temperature and calculated parameter.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 12 of 35 Function / Setting HF8 HC2 Notes Device protection X X Individual to the HF8 and HC2 probe RS-485 address X X Individual to the HF8 and HC2 probe Device Name X X User defined description The device name of the HC2 probe is not displayed by HW4 and is replaced with the HF8 Input Name Calculation
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document Type Page Document title 5.2 Instruction Manual 13 of 35 d) Immerse as much of the probe as possible in the environment to be measured. e) Prevent the accumulation of condensation water at the level of the sensor leads. Install the probe so that the probe tip is looking downward. If this is not possible, install the probe horizontally.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Electrical installation 6.1 General wiring guidelines Document Type Page Document title 6 Instruction Manual 14 of 35 Power supply wiring Heavy machinery and instrumentation should not share the same power supply wiring. If this cannot be avoided, noise filters and surge protectors should be used. Most UPS devices have those features already integrated.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide • • direct and alternate current > 400 V (unshielded) Telephone lines lines leading into EX-rated areas Document Type Page Document title • Instruction Manual 15 of 35 in separated bundles or channels / conduits, without minimum distance Lightning protection Cabling in areas with a risk of lightning requires a lightning protection.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title Instruction Manual Document Type Page 16 of 35 HF8 analog current outputs The maximum permissible cable length, connecting the unit to other devices, is determined by the total resistance resulting from the addition of the cable resistance and that of the devices connected in series with the unit. This resistance should not exceed 500 ohms.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 17 of 35 6.4.2 Terminal block diagram (all models) Terminal Blocks K1 and K2 (analog outputs) Description K1-1: GND Output signal 1 (-) see also 6.4.3 K1-2: GND Output signal 2 (-) see also 6.4.3 K1-3: GND Output signal 3 (-) see also 6.4.3 K1-4: GND Output signal 4 (-) see also 6.4.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 18 of 35 K3-2: GND VDC (-), when HF8 is powered from RS-485 data cable K3-3: D+ RS-485 + K3-4: D- RS-485 - Terminal block K3 (RS-485): , terminals K3-1 and K3-2 can be used to power the HF8 from a 15 to 24 VDC power supply connected to the RS-485 main data line.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title Terminal Block K8 (Relay 2) Description K8-1: NC Normally closed (relay not energized) K8-2: COM Common K8-3: NO Normally open (relay not energized) 19 of 35 6.4.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 7 Operation 7.1 Analog outputs 20 of 35 Use the ROTRONIC HW4 software to configure the HF8 as desired, complete the mechanical and electrical installation, connect the probe and simply power up the HF8. 7.2 Digital interface The HF8 uses the RO-ASCII communications protocol and does not offer any other option.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document Type Page Document title 7.3 Instruction Manual 21 of 35 Optional display and keypad 7.3.1 Display modes The LC display has a backlight which can be set to be on all the time or whenever a key is pressed. The backlight can also be disabled.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 22 of 35 7.3.2 Keypad MENU Activates the internal menu.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title Main Menu Menu Items Device Settings Display Settings Submenu Items Selections or Information 23 of 35 Notes Trend ON / OFF Trend indication on the display Decimals 1 or 2 Display resolution Contrast LC display contrast adjustment Back Light Key Press/ON/OFF Display backlight mode Mode Standard H+T+Ca
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title Main Menu Menu Items Probe 1 Info (applies to HygroClip 2 probe only) Submenu Items Selections or Information Firmware version Name Acquired Points User defined (HW4) Lists the cal. points present in the probe memory (a max. of 10 points are shown) Acquire ( Ref = Probe) © 2012; Rotronic AG Clear all cal.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title Main Menu Menu Items Submenu Items Data Logging Selections or Information o o o o Recording Samples Interval Mode Start Recording Stop Recording Settings 25 of 35 Notes o o o o Recording (ON / OFF) Nbr of records Log Interval Mode: Start Stop / Loop Data logging by the HF8 (max.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title Instruction Manual Document Type Page 26 of 35 7.4.4 Select which probe and/or parameters are shown on the display Press the MENU key and select Device Settings > Display Settings > Mode. Press ENTER to activate the Mode menu item, use the [+] or [-] key to select the display mode. Press ENTER to confirm and press MENU to exit.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 27 of 35 Stop recording data: o o Press the MENU key and select Data Logging. Press ENTER to activate the Data Logging menu item. Use the + or - key to select Stop Recording. Press ENTER twice to confirm. The HF8 automatically exits the data logging function. 7.5.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title 8.3 Instruction Manual Document Type Page 28 of 35 Periodic calibration check of the HygroClip 2 probe Both the Pt 100 RTD temperature sensor used in the HygroClip 2 probe and associated electronics are very stable and should not require any calibration after the initial factory adjustment.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title Instruction Manual Document Type Page 29 of 35 8.4.2 Calibration against a reference environment The HF8 can be used to do a 1-point or multi-point calibration of up to two probes against a known reference environment. Expose the probe or probes to be calibrated to the reference environment and wait for full equilibrium with the environment.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title 8.6 Instruction Manual Document Type Page 30 of 35 Validation of the output signals transmission If so desired, transmission of the HF8 output signals can be validated by using the simulator function. The HW4 software is required to enable and configure this function.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Technical data 10.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document title © 2012; Rotronic AG Instruction Manual Document Type Page 32 of 35 E-M-HF8-V2_10
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title Configurable analog outputs HF8 Output 1 Can be made to correspond to any parameter and probe Parameter User configurable with the ROTRONIC HW4 software Scale User configurable with the ROTRONIC HW4 software Output 2 Can be made to correspond to any parameter and probe Parameter User configurable with the ROTR
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Instruction Manual Document Type Page Document title 34 of 35 Digital interface options HF8 Interface options RS-485 USB and RS-485 Ethernet (wired) and RS-485 Ethernet with PoE Service connector HF8 Interface type UART (Universal Asynchronous Receiver Transmitter) Maximum service cable length 5 m (16.
E-M-HF8-V2_10 Rotronic AG Bassersdorf, Switzerland Document code Unit HygroFlex HF8 Humidity Temperature Transmitter: User Guide Document Type Page Document title 12 Instruction Manual 35 of 35 Supporting documents Document File Name Contents E-M-HC2 Probes-V1 HygroClip 2 (HC2) Humidity Temperature Probes, User Guide E-M-HC2-accessories Accessories and parts for probes, indicators and transmitters E-T-AC3000-DF-V1 AirChip 3000 Description and Main Functions E-M-HW4v3-DIR List of the HW4
