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Summary of Contents for Electronic Designs E40MH1
- Page 1 INSTALLATION, OPERATION & MAINTENANCE MANUAL MODEL E40MH1 DESCRIPTION 40-POSITION TIMER WITH LED NUMERIC DISPLAY ELECTRONIC DESIGNS INC. 1683 Rock Hill Highway Lancaster, SC 29720 Phone: 704-545-1439 • Fax: 704-545-8345 Website: www.edi-usa.com E-mail: info@edi-usa.com...
- Page 2 TABLE OF CONTENTS Page Subject General Description Summary of Operating Modes • 4-20 ma Cycle Mode • Hold-OFF Mode • Continuous Cycle Mode Remote Control Input Pulse Output Features Mounting & General Wiring Electrical Wiring for 4-20 ma Mode Electrical Wiring for Hold-OFF Model Electrical Wiring Continuous Cycle Mode Warranty &...
- Page 3 Position #1 through the programmed number. The LED display indicates the next output to fire. The E40MH1 is equipped with dual functions, allowing the customer a choice of operating modes. The timer can operate in response to a 4-20 ma signal from the Differential Pressure Transmitter or it can operate as a Hold-Off timer with the off-time set on the timer.
- Page 4 REMOTE CONTROL INPUT: TB 1 (located on upper board) also has provisions for 120 VAC Remote Control Signal. This input enables the timer to be switched remotely between the 4-20 mA mode and the continuous cycle mode. PULSE OUTPUT: TB 2 (located on lower board) provides a 120 VAC signal every time an output is pulsed. This can be used to monitor timer operation or count pulses.
- Page 5 ELECTRICAL WIRING FOR TIMER USED IN 4-20 ma MODE: 1. Connect 120VAC supply to NEUTRAL and HI (TB 1) (located on lower board). 2. Connect TRANSMITTER’S 4-20 ma Transducer output to TIMER 4-20 ma input terminal block. Connect Plus to Plus (+) and Minus to Minus (-). (TB 1) (located on upper board). 3.
- Page 6 WARRANTY & REPAIR: All EDI products come with a one year warranty against parts and/or manufacturing defects. Please see our terms & conditions or contact us for additional details. On all products that are over a year old, EDI offers a full test and repair facility at our Lancaster, SC.
- Page 7 PULSE OUTPUT SW HI NEUT Lower Board Upper Board 4-20 mA INPUT FROM Δ P SOLENOID HOLD-OFF COMMON H2O OFF ADJ ON ADJ 120 VAC - INPUT (120 VAC N) NEUT SW 1 REMOTE CONTROL 120 VAC 60 HZ 120 VAC - INPUT INPUT POWER NEUT PROGRAM WIRE...
- Page 8 PULSE OUTPUT SW HI NEUT Lower Board Upper Board 4-20 mA INPUT FROM Δ P SOLENOID HOLD-OFF COMMON H2O OFF ADJ ON ADJ 120 VAC - INPUT (120 VAC N) NEUT SW 1 120 VAC 60 HZ REMOTE CONTROL 120 VAC - INPUT INPUT POWER NEUT PROGRAM WIRE...
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