The Optex Sensor
A Monthly Newsletter Focusing on Important Issues for the Automatic Door Industry
  Monthly Newsletter - Issue 4November 2005  
In this Issue:

  1. Multiple Sensors, One Input Circuit
  2. Creating the Delighted Customer
  3. I-Sensor Promotion
  4. Proswing Promotion

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Optex Technologies, Inc.
3882 Del Amo Blvd.
Suite 604
Torrance, CA 90503
Tel: (800) 877-6656
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  Multiple Sensors, One Input Circuit
N/O inputs (Parallel), N/C inputs (Series)

By Jim Sargeant, Optex Technologies, Inc.


Jim Sargent
Our previous article discussed the importance of understanding relay logic and terminology to troubleshoot effectively. One more related issue should be discussed to further help in effective troubleshooting.

When multiple sensors are connected into one input on an automatic door control box you must know if the input circuit requires a normally open (N/O) input or normally closed (N/C) input. When a control box requires a N/O input, commonly seen for activation, multiple sensors must be connected in parallel to the control box. When the input requires a N/C input, commonly seen on breakout circuits and some safety circuits, multiple sensors must be connected in series.

Think of it as configuring the sensors and control box as what is referred to in Boolean Logic as an OR-GATE. The symbol below illustrates a two input OR-gate. If you have an input on input 1 OR input 2, OR both, you get an output.



For example: input 1 is an interior motion sensor and input 2 is an exterior motion sensor and the output is door activation. If the interior sensor OR exterior sensor OR both sensors detect motion, you get door activation. Simple, right? Here is how the parallel and/or series connections are used to achieve the OR-Gate function.



N/O INPUT --- PARALLEL CONNECTION
The diagram below illustrates a door control with a N/O activation circuit. If a piece of wire were connected across activation to common (creating continuity) the door would activate open.



When a motion sensor is connected to the input and the sensor detects motion, a N/O relay inside the sensor closes contact and connects the door controls activation input to common. This results in activating the door open.



When connecting two or more motion sensors to the control (such as an Interior and an Exterior sensor or two-way traffic) the sensors must be connected in parallel as shown in the diagram below. This results in activation if the interior OR exterior, OR both, sensors detect motion.



When incorrectly connecting the sensors in series (as illustrated below) both sensors must be in detection to achieve continuity between the control box activation and common inputs. This means both interior AND exterior sensors must be in detection to activate the door (NOT GOOD). We do not want an AND-Gate. We want an OR-Gate.



N/C INPUT --- SERIES CONNECTION
In this example the illustration below shows a breakout circuit on a simultaneous pair of swing doors. This door control has one input for breakout and it requires a normally closed (N/C) circuit. With no continuity between breakout and common the door operation is stopped. If no breakout switches are connected, a jumper wire is required from breakout to common for the door to operate.



A breakout switch can be considered a sensor. It senses when a door panel is in the breakout position. A pair of swing doors that breakout the opposite direction of normal operation has two breakout switches (one per door panel). When the door panels are in the breakout position the N/C contact of the breakout switch is open. The two breakout switches must be connected in series (as illustrated below). When connected in series if B/O switch 1 OR B/O switch 2, OR both, are open the control will stop door operation.



When incorrectly connecting the switches in Parallel, and only one door panel is in the breakout position (only one switch open, B/O switch 1) continuity between the breakout and common input is sustained through the other switch (B/O switch 2). This would allow the door to continue operating even though one panel is in the breakout position. This means switch 1 AND switch 2 would have to be open to stop door operation (NOT GOOD). We do not want an AND-Gate. We want on OR-gate.



In review, multiple sensors or switches must be connected in Parallel for N/O inputs and Series for N/C inputs.

When working on a two way traffic door, if the door does not open unless both motion sensors are activated, check to see if they are wired in series.

When working on doors with multiple breakout switches, check each panel individually for proper operation. If the door continues to operate when only one panel is in breakout, check to see if the switches are wired in parallel.

For further information or clarification regarding this issue, contact Jim Sargent at Optex Technologies Incorporated (800) 877-6656 Ext: 330).


CORRECTION:
Thank you to Glenn Woodworth from Camden/Entrex for catching a mistake in our previous article titled Relay Logic and Terminology. The mistake was in the illustration on page 3 of the article. The Multimeters showed the incorrect readings for measuring the relay contacts (the readings are reversed). We sincerely regret the mistake.

Click here to see the corrected article.

  Creating the Delighted Customer
By Bill Byrne

We shouldn't confuse customer service with service effectiveness. In other words, our customer style can be terrific, but we may still flunk the effectiveness test if we're not offering the substance needed to meet needs or expectations.

Winning and keeping customers requires we provide value that propels the customer's life forward. That's good cause to elevate our thinking from providing mere customer service to the next higher level, customer satisfaction. At this level, the customer relationship focuses on the perspective of the customer, not the provider.

Here are the series of thoughts that lead to delighting the customer.

Focus on the customer

Stay Close to your Customers.
Salespeople too often lose touch. Stay close. Don't contact a customer only when you have something to sell. Visit in person or by phone at other times when your purpose is simply to reinforce the relationship.

Share a piece of pertinent information or just check to be sure all is going as planned. Practice the sales-stutter - one call to sell, then one to satisfy, then another to sell. A non-selling contact is important to the healthy of a delighted customer relationship.

The most important customer is the existing customer. We become so charged up opening new accounts we too often forget to serve delightfully those most important to us. It doesn't pay to build a business on the backs of your existing, loyal customers. Make your deals available to all customers - not just new ones.

Attitudes and actions

Pretend you're going to lose every customer. Imagine the positive energy put into customer delight when we assume we are at risk of losing every customer after every sale. That assumption will motivate us to delight our customers.

Promises are made to be kept.
Making promises is easy, keeping them isn't. The number of promises we make is less important that the number we keep. Relationships are built on expectations. It's far worse to make a promise and not keep it than not to have promised at all. Don't disappoint.

Don't advertise - Surprise.
You don't develop relationships with satisfied customers with fanfare and promotion, but with action. Advertising stimulates business by promising a lot, then often delivering less than promised. A delighted customer results when we determine what the customer needs, promise it, then deliver more than promised. We're besieged by advertising promises. When it comes to the delightfully satisfied customer, however, there is no room for advertising hype. What counts is delivery. Effective salespeople don't over promise when forming their delighted customer strategy. But they do over deliver.

Be Genuine.
The delightfully satisfied customer can only be served by someone genuinely wanting to help. Someone focused more on the needs of the customer than his own. Genuine, caring people are givers, and in giving they achieve - for themselves, their customers, and their organization.

Plan their satisfaction

Customer delight begins during the sale.
The signing of the agreement or writing the check doesn't end the sale. That's hen the sale begins. The customer's lasting impression begins during the sale and is molded after the sale. Follow up by phone letter, note and inquiry are critical to developing repeat business - and a delighted customer.

Plan your style.
The successful salesperson invests time in planning. Delivering customer delight requires a planned, unique style that has the potential to become a viable service trademark.

Anticipate customer needs.
Anticipating the needs of tomorrow's delighted customer requires an insight into market characteristics of your customer, as well as a willingness to change. Strategic planning and continuous customer inquiry are opportunities effective salespeople use to gain access to the leading edge of market trends.

Creating customer delight

Creating delight is unconditional.
We can't choose the circumstances we wish to exist when delivering customer delight. There are times when creating a delighted customer will come at a cost. Nonetheless, our commitment must be uninterrupted by convenience or short -term profit consideration.

Customer delight requires a good product or service.
Many salespeople have a habit of cutting corners, believing they're still capable of building strong customer relationship. It's a delusion.

Customer delight requires not only the right intent, but the right words.
We often choose harsh words when dealing with customer complaints. "You should" is better stated as "Would you consider" or "May I suggest." "Let me check" is better phrased as "May I check for you," etc.

Growth Creates Growth.
We must provide satisfaction, happiness, wealth, or self-image to have a delighted customer. We will achieve success by offering a product or service that meets needs in an extraordinary way. When that occurs, customer delight is possible. When it doesn't, it isn't.

Delightful satisfaction requires flexibility
Since the "delightful feeling" is highly personal, what pleases one customer may not thrill the next. Delivering this feeling requires a supple, athletic flexibility adaptable to each situation. Bend with the need. Agility and adaptability, combined with sincere effort, create optimum results.

Adapted from Habits of Wealty, by Bill Byrne (The Berkley Publishing Group, New York). Mr. Byrne is the founder and president of several successful corporations in the food service, personal development and publishing industries. He is also a noted speaker and authority on the topic of futuristic leadership.

  Optex Assists Professional Automatic Door Distributors By Offering a Trade-In Program For Non-Ansi Compliant Sensor Systems
A new program offered by Optex Technologies Inc. allows Professional Door Distributors to trade in older, single technology, motion only sensors for the purchase of new i-One Sensors which comply with the new ANSI standard.


Optex Technologies Inc. is now offering qualified Automatic Door Distributors the ability to trade in old, single technology motion only detectors and receive an in house credit for the purchase of ANSI Compliant i-One Sensors. Send Optex any old, motion only sensor in any condition and receive a $30 credit towards the purchase of the i-One Motion and Presence Sensor for Sliding Doors with the ability to provide Jamb to Jamb Presence. The i-Sensor is the industries first single technology motion and presence detector with the ability to provide Jamb to Jamb safety. Limited time offer. For more information, contact the Optex Technologies Sales Department at (800) 877-6656.


  Introductory ProSwingPremier Promotion

ProSwingPremier
Header Mounted Swing Door Safety Sensor


Key Features and Benefits of ProSwingPremier for Distributor:
  • Easy Adjustment (Compared with other options in the market)
  • 4 Memory Positions (eliminates re-learn cycle for “Push & Go” and other types of Low Energy Features)
  • Built-In Lockout Relay (other solutions require an additional lock-out for an extra cost)
  • Works on virtually all swing doors “out of box” without extra modules.
  • Sensor will be upgradeable to Door mount for a very reasonable price (when ProSwingElite becomes available)
  • Competitive Price: Feature for Feature, the ProSwing Premier is more cost effective than the competition.


Special Introductory Offer:
Purchase (2) ProSwingPremier Sensors at the regular price, and get (2) OA-202CBL sensors free of charge (a $240.00 value).

Limitation:

  • Limited to first 100 Distributors (promo ends when 200 Premiers have been sold).
  • Limited to a maximum of (2) free OA-202CBL Sensors per Distributor (regardless of how many Premiers are purchased).
  • Distributor must be in good standing (no old debt and good credit)
  • New customers must do COD or CC or wait until approval of Credit Line