pressure switch

E 1 8. 05 5. 5/ 03 .1 1 71 Electronic Pressure Switch EDS 1700 Description: The EDS 1700, with its integrated pressure measuring cell, 4-digit display and 4 switching outputs, offers the user all the advantages of a modern electronic pressure switch. 4 switching points and switch-back points can be adjusted very simply and independently of each other using the keypad. For optimum incorporation into monitoring systems (e.g. with PLC), an analogue output (4 .. 20 mA or 0 .. 10 V) is also available. The main applications of the EDS 1700 are in hydraulics and pneumatics. The instrument is ideal for use where frequent switching cycles (several million) require permanent switching point accuracy or simple and precise adjustment. Special features:  Integrated pressure sensor with strain gauge on stainless steel membrane  Accuracy 0.5 % or 1 % FS  4-digit display  Simple operation via key programming  4 limit relays, switching points and switch back points can be adjusted independently  Analogue output signal selectable  Many useful additional functions  Optional mounting position (pressure connection on the top/ bottom, keypad and display can be turned through 180°)  Can be set to display values in any unit of measurement e.g.: kN, kg, psi, ... Technical specifications: Input data Measuring ranges 16; 40; 100; 250; 400; 600 bar Overload pressures 32; 80; 200; 500; 800; 1000 bar Burst pressures 200; 200; 500; 1000; 2000; 2000 bar Mechanical connection Threaded port G1/4 DIN 3852 Torque value 20 Nm Parts in contact with medium Mech. connection: Stainless steel Output data Accuracy to DIN 16086, EDS 1700-P: ≤ ± 0.5 % FS max. Max. setting EDS 1700-N: ≤ ± 1 % FS max. (display, analogue output) Repeatability EDS 1700-P: ≤ ± 0.25 % FS max. EDS 1700-N: ≤ ± 0.5 % FS max. Temperature drift EDS 1700-P ≤ ± 0.02 % FS / °C max. zero point & range Temperature drift EDS 1700-N ≤ ± 0.03 % FS / °C max. zero point & range Analogue output Signal selectable 4 .. 20 mA ohmic resistance ≤ 400 W 0 .. 10 V ohmic resistance ≥ 2 kW Switching outputs Type 4 relays with change-over contacts (2 groups, common supply of each group con.) Switching voltage 0.1 .. 250 V AC / DC Switching current 0.009 .. 2 A per switching output Switching output max. 50 W / 400 VA (for inductive load, use varistors) Switching cycles 20 million at minimum load 1 million at maximum load Reaction time approx. 20 ms Ambient conditions Compensated temperature range -10 .. +70 °C Operating temperature range -25 .. +60 °C Storage temperature range -40 .. +80 C Fluid temperature range -25 .. +80 °C mark EN 61000-6-1 / 2 / 3 / 4 Vibration resistance to ≤ 5 g DIN EN 60068-2-6 (0 .. 500 Hz) Shock resistance to ≤ 10 g DIN EN 60068-2-29 (1 ms) Protection class to DIN 40050 IP 65 Other data Supply voltage 22 .. 32 V DC Current consumption approx. 200 mA Residual ripple of supply voltage ≤ 10 % Display 4-digit, LED, 7 segment, red, height of digits 13 mm Electrical connection 14-pole, terminal block Housing material aluminium, anodised Weight approx. 800 g Note: Reverse polarity protection of the supply voltage, excess voltage, override and short circuit protection are provided. FS (Full Scale) = relative to complete measuring range E 1 8. 05 5. 5/ 03 .1 1 72 E 1 8. 05 5. 5/ 03 .1 1 73 Model code: EDS 1 7 9 X – X – XXX – 000 Mechanical connection 9 = threaded port G1/4 DIN 3852 Display 1 = 4-digit bar 2 = 4-digit psi Accuracy P = 0.5 % N = 1 % Pressure ranges in bar 016; 040; 100; 250; 400; 600 Modification number 000 = standard Note: Special models on request. On units with a different modification number, please read the label or the technical amendment details supplied with the unit. Accessories: Appropriate accessories, such as mechanical adapters etc. can be found in the Accessories section. Setting options: The core of the unit is a microprocessor which provides many useful extra functions in addition to normal pressure switch operation. It is possible, for example, to activate switching delay times to prevent fast pressure peaks from triggering an unwanted switching cycle. All settings are made using the keypad. Setting ranges of the switching points:  Switching point relay 1 to 4: 1.5 % .. 100 % FS  Switch-back relay 1 to 4: 1 % .. 99 % FS or alternatively switch-back hysteresis 1 to 4: 1 % .. 99 % FS Note: FS (Full Scale) = relative to the full measuring range Setting options:  Switching direction of the relays 1 to 4 (N/C or N/O)  Switch-on delay relays 1 to 4 in the range 0.00 .. 90 seconds  Switch-back delay relays 1 to 4 in the range 0.00 .. 90 seconds  Switch-back mode (either switch-back point or switch-back hysteresis)  Display of the actual pressure, a switching point or of the peak value  Display filter (slow / medium / fast)  Display range scale individually adaptable (bar, psi, user-selectable)  Measurement unit (bar, psi) is displayed  Analogue output (4 .. 20 mA or 0 .. 10 V)  Programming disable Terminal assignment: Note: The information in this brochure relates to the operating conditions and applications described. For applications and operating conditions not described, please contact the relevant technical department. Subject to technical modifications. ElEcTrONIc GMbH Hauptstraße 27, D-66128 Saarbrücken Tel. +49 (0)6897 509-01 Fax +49 (0)6897 509-1726 E-Mail: electronic@hydac.com Internet: www.hydac.com Dimensions: Pin 1 +UB 2 0 V 3 Analogue output signal + 4 Analogue output signal - (0 V) 5 Relay 1 N/C 6 Relay 1 N/O 7 Centre relay 1 and 2 8 Relay 2 N/C 9 Relay 2 N/O 10 Relay 3 N/C 11 Relay 3 N/O 12 Centre relay 3 and 4 13 Relay 4 N/C 14 Relay 4 N/O cable gland PG 11 G1/4 DIN3852 female countersink to DIN 74-KM5