FFI SYSTEM OPTICAL-PNEUMATIC CONVERTER DATA SHEET ZLD···3 The optical-pneumatic converter is used for converting optical signal to pneumatic signal proportional with the set value given from master station in order to operate a pneumatic final control element such as pneumatic positioner or diaphragm valve. A fiber optical cable used for the signal transmission line forms an optical field instrumentation system together with an optical star coupler and a master station. FEATURES 1. Resistive to noise and lightning Optical signal ensures a reliable signal transmission, because it is not affected by external noise and inductive lightning. Use of a nonmetallic optical (fiber) cable prevents propagation of inductive lightning through the cable, so a signal transmission immune to lightning can be realized. 2. Reliability due to redundant configuration Host system can be duplicated by using two optical cable trunk lines (between an optical star coupler and host system). This enhances reliability of users’ systems. 3. Intrinsic safety type explosion-proof Each equipment with a built-in battery can be constructed so as to be an intrinsic safety type individually (intrinsic safety type barrier unnecessary). SPECIFICATIONS Functional specifications Input: Optical digital signal Output: Pneumatic signal within 20 to 100 kPa Air supply pressure: 140 kPa Power supply: Built-in lithium battery (2 cells), expected life; about 3 years/cell Explosion-proof: Intrinsic safety type, JIS ib IIC T3 Self-diagnosis: Displayed on indication unit (option) and transmitted to master station. Item Host system Indication unit Deviation error Detecting unit failure Amplifier abnormal Battery voltage Battery voltage low alarm – Remote control function (Items readable and setting from hand-held communicator) Item Reading Setting Output value Control constant Battery voltage Emergency operation ○ ○ ○ ○ – ○ – ○ Error indication ○ – Description Read-back value P and I parameters Voltage of built-in battery Direction of emergency operation Detector error and deviation error Emergency operation: Operating direction of output air pressure when input turns off. Selectable among the following operations. ... Refer to CODE SYMBOLS. • Holding of the latest normal value • Scale out below 0% (5 kPa or less) • Scale out above 100% (120 kPa or more) Optical cable: Code set type, silica fiber ... core/clad diameter 100/140 µm Optical connector: FC connector Transmission distance: 1.5 km max. (when transmission loss of optical cable is 4 dB/km) Ambient temperature: -20 to +60°C -10 to +60°C for intrinsic safety explosion-proof type Storage temperature: -30 to +70°C EDS9-52 Date May. 20, 2004 ZLD···3 CODE SYMBOLS Performance specifications Accuracy rating: ± 0.5% of full scale (Output ripple about ± 0.1%) Response speed:3 sec or less (90% response time at load capacity 0.5 L) Input/output characteristic: Linear Air consumption: Standard (output constant); 8 NL/min Maximum (output under sudden change); 60 NL/min Physical specifications Environmental protection: JIS C0920 splash-proof type (equivalent to IEC IP54) Air piping connection: Rc 1/4 or 1/4-18NPT Optical cable connection: G1/2 or 1/2 -14NPT Mounting method: Mounted on horizontal or vertical 50A (2B) pipe with U-bolt Finish: Epoxy-polyurethane double coat, Color: silver (blue for amplifier case cover) Mass: Approx. 5.3 kg External dimensions: See OUTLINE DIAGRAM. Optional specifications Indication unit: 5-digit LCD indication, % or real scale indication (as specified by code symbol) SYSTEM BLOCK DIAGRAM Host system Master station Control room Star coupler Field Pneumatic final control element P/P O/P SUP SUP 2 Optical-pneumatic converter ZLD 1 2 3 4 5 6 7 8 Z LD 1 F 3 9 10 11 Description Output signal/supply pressure (4th digit) 20 to 100 kPa/140 kPa 1 Air piping connection/ cable lead-in port (5th digit) Rc1/4 / G1/2 1/4-18NPT / 1/2-14NPT S T Indicator (7th digit) Not provided Digital, % indication Digital, real scale indication A L P Explosion-proof (9th digit) Non-explosion proof Intrinsic safety, JIS A G Emergency operation (when input turns off)(10th digit) Holding of the latest normal value Scale out below 0% Scale out above 100% A B C Y A Air set (11th digit) Without With air set OUTLINE DIAGRAM ZLD1 (Unit : mm) 3- Y 225 Mounting pipe JIS 50A (2B) 64.5 108 70 91 U-bolt (M8) 191 130 214 SUP OUT 25 Indicator (option) 27 64 Pressure gauge (output) B 39 47 2 air piping connections Optical cable lead-in port 15 3 ø15 D Type ZLD1S ZLD1T Air piping connections Rc 1/4 1/4-18NPT Optical cable lead-in port D G 1/2 1/2-14NPT Details of “B” 3 ZLD···3 SCOPE OF DELIVERY Instrument body and pipe fixture ORDERING INFORMATION 1. Model type 2. Indication scale for real scale specification 3. Others Caution on Safety *Before using this product, be sure to read its instruction manual in advance. Head Office 6-17, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan http://www.fesys.co.jp/eng Sales Div. International Sales Dept. No.1, Fuji-machi, Hino-city, Tokyo, 191-8502 Japan Phone: 81-42-585-6201, 6202 Fax: 81-42-585-6187 http: //www.fic-net.jp/eng Information in this catalog is subject to change without notice. Printed in Japan