731 Relay Box Manual 8.731.
Metrohm AG CH-9100 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com 731 Relay Box Manual 8.731.1003 05.
Teachware Metrohm AG CH-9100 Herisau teachware@metrohm.com This documentation is protected by copyright. All rights reserved. Although all the information given in this documentation has been checked with great care, errors cannot be entirely excluded. Should you notice any mistakes please send us your comments using the address given above. Documentation in additional languages can be found on http://documents.metrohm.com.
Contents 1 Overview _____________________________________________ 1 1.1 Range of applications ________________________________ 1 1.2 Possible applications _________________________________ 1 1.3 Instrument description________________________________ 2 1.3.1 Front view .................................................................................... 2 1.3.2 Rear view.....................................................................................
1.1 Range of applications 1 Overview 1.1 Range of applications The Metrohm 731 Relay Box is a versatile auxiliary instrument which can be used in may different ways for switching various peripheral devices in complex automated systems. It has been designed specially for factory and laboratory use and makes a wide range of applications possible.
1. Overview 1.3 Instrument description 1.3.
1.3 Range of applications 1.3.
2. Installation 2 Installation 2.1 Instrument setup Packaging The 731 Relay Box is supplied together with the specially packed accessories in packaging containing shock-absorbing foam which provides excellent protection. Please store this packaging as it guarantees damage-free transport of the instrument. Checks Please check immediately on receipt whether the shipment is complete and undamaged (compare with delivery note and list of accessories in section 6).
2.1 Instrument setup page) corresponds to the local line voltage. If this is not the case then the correct line voltage must be set as follows: Pull out line cable • Pull the line cable out of the line connector of the 731 Relay Box. Remove fuse holder • Use a screwdriver to loosen the fuse holder beside the line connector and pull it out completely.
2. Installation Checking and replacing the AC fuses Line voltage outputs AC1 and AC2 have their own fuses. Fuse 5A(T) AC 1 Fuse holder AC1 • Use a screwdriver to press down strongly the affected fuse holder and turn it counterclockwise through 90°. Carefully remove the fuse holder. • Carefully remove the fuse from the fuse holder and check its specifications: 220…250 V 5A (slow-blow) Metrohm no. U.600.
2.2 Safety information 2.2 Safety information General: This instrument left our factory in perfect condition from a safety consideration point of view (see Technical specifications, Safety specification). To maintain this condition and for danger-free instrument operation the following instructions should be carefully observed. Line connection: The line cables supplied with the instrument have three leads and are fitted with a plug having an earthing pin.
2. Installation When replacing fuses care must be taken that the voltage, amperage and type have been correctly selected (see Technical specifications, Fuses, page 23). WARNING! Short-circuiting fuses or the temporary use of incorrect fuses is forbidden. Static electricity: The circuits contain components that may be destroyed by electrostatic charges or whose functions may be affected by them. Work on open instruments should only be carried out in ESD-protected surroundings. Suitable measures: 1.
2.3 Setting the DC output voltage 2.3 Setting the DC output voltage The common output voltage for the direct current outputs (DC1 and DC2) is set inside the Relay Box housing. • Switch off the instrument and pull out the line plug. Loosen the four knurled screws of the protective cover and remove them. Right-hand side of housing without protective cover Rear view of housing without protective cover • The screws marked with an arrow in the diagram must be loosened.
2. Installation 2.4 Connections Metrohm automated systems with the 731 Relay Box 711 Liquino Titrino family 726 Titroprocessor 702 716 718 719 720 736 751 758 726 730 730 Sample Changer 691 692 712 713 Remote In pH Meter / Conductometer 731 Relay Box Remote Out AC1 AC2 717 717 Sample Changer DC1 DC2 Dosimat other devices Pumps Heaters ... 665 715 725 765 775 776 Valves 772 Pump Unit 2.4.
2.4 Connections 2.4.2 The Metrohm remote socket Particular instrument functions can be triggered by activating the individual pins (connection pins) of a remote socket. The instrument itself activates certain pins according to the instrument’s condition and transmits signal pulses when particular events occur. The functions which are used for remote control in an automated system are allocated to logical remote lines. They are subdivided into input lines (signal inputs to trigger functions, e. g.
2.
2.4 Connections 2.4.3 The 731 Relay Box and remote lines Linear 1:1 cable 6.2125.100 One instrument (Master) sets output lines via remote socket Output 0 Output 1 Output 2 ... ... Input 2 Input 1 Input 0 Remote cable e. g. 6.2141.020 Remote In AC1 AC2 Remote Out Output 0 Output 1 Output 2 ::: ... Input 2 Input 1 Input 0 DC1 DC2 e.g. 6.2141.020 One instrument receives input signals via remote socket. The remote signals are not influenced by the 731 Relay Box.
2. Installation Linear 1:1 6.2125.100 cable (25-pin) Output 0 (Pin 5) Output 1 (Pin 18) ... Input 0 (Pin 21) Input 1 (Pin 9) … 0 V (Pin 14) 0 V (Pin 25) +5 Volt (Pin 15) (Pin 5) Output 0 (Pin 18) Output 1 ... (Pin 21) Input 0 (Pin 9) Input 1 … 0 V (Pin 14) 0 V (Pin 25) +5 Volt (Pin 15) Remote cable e.g. 6.2141.
2.4 Connections 2.4.5 Application examples The 731 Relay Box is controlled via remote lines which can be freely selected in many Metrohm instruments and set to be operationcontrolled. On the 731 Relay Box an output line must be set for each switchable output; this then controls the corresponding output. This is done with the remote address selection disk on the front of the relay box. Use a screwdriver to set the corresponding number of the output line. See also page 21.
2. Installation 726 Titroprocessor – 731 Relay Box – 2x hotplates/stirrers Control of hotplates/stirrers for titrations with the 726 Titroprocessor. 6.2125.
2.
2. Installation 751 Titrino , control commands: TIP mode Switch on pump: >sequence x.step x.output L4: output L4 active Switch off pump: >sequence y.step y.output L4: output L4 inactive PC-controlled titration system with the 731 Relay Box – 772 Pump Unit – aeration valve – 2 x Titrino For determinations under an inert gas atmosphere an aeration valve can be switched on and off. In larger analytical systems instruments can be switched on and off selectively. Solenoid valve 6.2726.
2.4 Connections Control commands in Tinet 2.x: In a sequence for 730 Sample Changer Switch on aeration valve: Switch off with bit pattern: 0************* Switch 772 Pump Unit: Bit pattern: *1************ (=on) Bit pattern: *0************ (=off) Switch Titrinos: Bit pattern: **1*********** (=on) Bit pattern: **0*********** (=off) The output line can be selected freely. Avoid conflicts with other instruments which may be connected. ... – 731 Relay Box – 665, ...
2. Installation Settings for the 731 Relay Box: Dosimats connected to AC1 (or AC2) Important! The cable strands (with banana plugs) must be connected crosswise to the Dosimats (at the dosing contact), i.e. red plug in black socket and vice versa.
3.1 Possible settings 3 Settings 3.1 Possible settings Output status (LED) DC 1 Marking field Remote address selection disk Control button For each switchable output (DC1, DC2, AC1, AC2) the operating and control items represented above are available. • Marking field With the 731 Relay Box two magnetic shields are provided. Use scissors to adapt these to the desired length. Use the shields to mark each output, e.g. with the designation of the device that is attached to the corresponding output.
3. Settings 3.2 Inverting For each switchable output a DIP switch is available, with which the circuit logic can be inverted. INVERT DC 1 DC 2 AC 1 AC 2 OFF ON If a DIP switch is thus switched 'INVERT ON ' (to the right) by means of a screwdriver, the appropriate output (DC1, DC2, AC1 or AC2) is switched on if the output line is inactive . The relationship remote 'active' ⇒ output 'off' is then observed, and vice versa. The inverting circuit can also be useful to, e.g.
3.2 Inverting 4 Technical specifications Dimensions Weight Housing Width: 102 mm, height: 225 mm, depth: 191 mm 4.5 kg without accessories metal case, multiple stove-enamel DC-Sockets Output voltage, adjustable 0, 5, 10, 18, 24 V Max. load: 1 A each output AC-Sockets Output voltage = supply voltage Max.
4. Technical specifications Safety specifications Constructed and tested according to : IEC 1010/EN 61010/UL 3101-1 Safety class I, EN 60 947-1 degree of protection IP2L1. The instruction manual contains information and warnings which the user should follow to guarantee the safe operation of the instrument. Electromagnetic Compatibility (EMC) Emitted interference Standards met: EN50081-1 01.92, EN55011 (class B), EN55022 (class B) and NAMUR Immunity to interference 24 Standards met: EN50082-1 01.
5.1 Warranty 5 Warranty and certificates 5.1 Warranty The warranty regarding our products is limited to rectification free of charge in our workshops of defects that can be proved to be due to material, design or manufacturing faults which appear within 12 months from the day of delivery. Transport costs are chargeable to the purchaser. For day and night operation, the warranty is valid for 6 months. Glass breakage in the case of electrodes or other glass parts is not covered by the warranty.
5. Warranty and certificates 5.2 EC Declaration of Conformity The METROHM AG company, Herisau, Switzerland hereby certifies, that the instrument: 731 Relay Box meets the requirements of EC Directives 89/336/EWG and 73/23/EWG. Source of the specifications: EN 50081-1 01.92 EN 50082-2:1995 Electromagnetic compatibility, basic specification. Emitted Interference Electromagnetic compatibility, basic specification.
5.3 Certificate of Conformity and System Validation 5.3 Certificate of Conformity and System Validation This is to certify the conformity to the standard specifications for electrical appliances and accessories, as well as to the standard specifications for security and to system validation issued by the manufacturing company. Name of commodity: 731 Relay Box Name of manufacturer: Metrohm Ltd.
6. Accessories 6 Accessories 731 Relay Box includes the following accessories: 2.731.0010 Cable DB25 m/m (1:1), shielded, 2 m 1 Line cable with cable socket, type CEE(22), V Cable plug to customer's specifications type SEV 12 (Switzerland...) type CEE(7), VII (Germany...) type NEMA/ASA (USA...) Magnetic labels, 20 x100 mm, 2 x Adhesive labels, 2 x Instructions for use of 731 Relay Box 6.2125.100 6.2122.020 6.2122.040 6.2122.070 6.2248.000 S.211.3000 8.731.
7 Index 7 Index 1:1 cable ..................... 13; 14 711 Liquino ....................... 16 726 Titroprocessor ........... 16 772 Pump Unit ...... 15; 16; 17 accessories ...................... 28 AC-sockets ....................... 23 adhesive labels ................... 9 aeration valve ................... 18 automated systems .......... 10 auxiliary dosing devices ... 19 banana plugs .................... 20 cable 6.2125.100 ........ 13; 14 cable strand ................ 20; 28 certificate ................
