Test Unit Du line Type GHTU8 Fieldbus Installationbus Portable test unit Designed as part of the Dupline /Hi-Line irrigation concept Monitoring of Hi-Line channel status LCD-display 12-key tactile keyboard Supplied by Hi-Line Transmission latch Dual-group reading Analog BCD reading Product Desciption Ordering Key GHTU 8 Test unit for Hi-Line modules Highly recommended for Hi- Type: Hi-Line and networks. Monitoring/con - Line system start-up, trou ble - Type no. trol unit with LCD-dis play. shoot ing and main te nance. Type Selection Supply Specifications Supply Ordering no. Power supply Supplied by Hi-Line Test unit Reverse-polarity protection Yes Rated operational current < 4.0 mA Supplied by Hi-Line GHTU8 Product Specifications General Specifications Input Hi-Line Environment Connection 3 mm Jack socket Degree of protection IP 40 Pollution degree 3 (IEC 60664) Display 2 x 16 characters Operating temperature 0 to +50C (+32 to +122F) Type LCD Storage temperature -20 to +60C (-4 to +140F) Height of dots 5 mm Humidity (non-condensing) 20 to 80% Keyboard Tactile keys No. of keys 12 Mechanical resistance Channel keys 1-8 Shock 15 G (11 ms) Command keys (scroll up/down) Vibration 2 G (6 to 55 Hz) MODE , ENTER Dimensions (l x w x d) 145 x 90 x 28 mm Cable 1 GTU8 to Hi-Line Material ABS, grey GTU8 connector 3 mm Jack plug Weight 250 g Dupline connector 2 mini grips Signal Red Common Black Cable 2 GTU8 to ASIC module Wiring Diagram GTU8 connector 3 mm Jack plug Dupline connector 1 6/6 modular plug BUS+ BUS- Red Black Additional Information Scope of supply 1 x Test unit GHTU8 1 x Cable 1 (mini grips) GTU8 - GRIP - CAB 1 x Cable 2 GTU8 - ASIC - CAB Supplied by Hi-Line BUS+: Signal wire Specifications are subject to change without notice (07.06.2007) 1 Dupline is a registered trademark. A product of the CARLO GAVAZZI GroupGHTU8 Du line Fieldbus Installationbus Mode of Operation 128-channel portable trans - group in the upper row of the show the analog value trans - channel is selected. mit ter/receiver unit supplied display. mit ted on the selected chan - 3. When the channel has by Hi-Line. The GHTU8 can nel groups disregarding the been selected, an intermedi- be used an y where along the multiplex address. Edit Tx-latch ate state is entered: two Hi-Line wires to monitor PRESS ENTER TO In this mode it is possible to and control the status of theOF should be selected CALIBRATE latc the ac ti va tion of one or Press enter to start Calibrat- chan nels. This unit is highly when the analog trans mit ters more channels. This means ing. recommended for start-up are used in non-multiplexed that the GTU8 will continue and main te nance work on mode. transmitting on the channel(s) 4. When enter is pressed the systems. even though the cor re spond - calibration is started and a If a specific analog trans mit ter progress bar is shown in the ing transmission but ton is The GHTU8 can operate in 6 is to be tested, it is pos si ble display: re leased. 0%:************ different modes: to set up its multiplex ad dress ************:100% Digital 1 group inTx-latc mode and then To cancel the transmission on Dont press anything the Digital 2 groups go back to theAnalog BC a channel, press the cor re- GHTU8 will change state Edit Tx-latch mode to monitor the value. spond ing transmission but ton automatically. Analog BCD again. Split I/O Split I/O 5. When calibration is finished The latched transmission will the following will be shown in Sensor Calibration In this mode it is possible to continue even if the channel the display: see the status of split I/O group or mode is changed. In FINISHED PRESS The start-up mode isDigital channels. order to change the status of MODE TO EXIT 1 grou. The upper row in the display a latched transmission, it is shows the output from the Pressing the mode button is nec es sary to re-enter the the only way to restart calibra- To change mode: master generator.Edit Tx-latc mode. tion or entering a new mode 1. Press Mode The lower row in the display of operation 2. Shift between mode op- shows inputs from Dupline All the latched channels are tions by pressing either units to the master generator. reset to normal Dupline op - Warnings: or . er a tion whenever the GTU8 Do not plug or un plug the 3. Select mode by press- By pressing or the becomes disconnected from Jack con nec tor when the ing Enter . group ad dress es can be the Dupline . GHTU8 is connected to Hi- changed. Line. This will cause a short- Digital 1 group Analog BCD circuit of the two wires. Pressing 1, 2 ... 8 will Once connected to the Hi- In this mode it is possible to activate the corresponding Line, the display shows the monitor values from analog Do not connect a standard Dupline channel in the se lect - status of channel group A. transmitters that use the mul- GTU8 test unit to Hi-Line. It ed channel group. Active channels are in di cat ed tiplexed 3 1/2-digit BCD for- will cause immediate damage by their numbers. Pressing mat. The analog values are to the unit. Note: If the bus signal is 1, 2 ... 8 will activate the shown as BCD numbers with - missing, the display will not corresponding Dupline chan- in the range of -1999 to 1999. Note: The GHTU8 will not turn on. work on a normal Dupline net. nel in the se lect ed channel Sensor Calibration group. By pressing or the The Sensor Calibration func- Pressing or chang - group ad dress es can be tion is carried out as a es the channel group shown changed. By keeping Enter sequence of steps. The func- in the display. pressed while ac ti vat ing tion controls one channel on or , the multiplex ad dress the Dupline bus to tell the Digital 2 groups will change instead. attached sensors to calibrate. When the modeDigital 2 1. Enter this function and group is selected, the user The display will showWai select the decided Dupline may select an additional until the selected multiplex group: chan nel group for permanent address has been present on SELECT SENSOR monitoring on the bottom line chan nels A1-A4. CALI GROUP: X of the display. The channel (X is the group number). Press enter when the want- status of the two selected If no analog value is trans mit - ed group is selected. groups can now be mon i - ted on the selected address, tored, but changing the chan - the display will show:Non. 2. When Group is selected the nel sta tus through the keys channel within the group must 1 ... 8 only affects the If the analog value on the se - be selected. SELECT SENSOR channels displayed in the lect ed address is not valid, CALI CHANNEL: XY upper row of the display. Even the display will show:Erro. (X = Group number, so, pressing the or If the multiplex addressOF Y = Channel in group X). key only changes the channel is selected, the display will Press enter when the wanted 2 Specifications are subject to change without notice (07.06.2007) Dupline is a registered trademark. A product of the CARLO GAVAZZI Group