Performing Power Supply Integrity Test; Correcting Possible Water Problems; Silicone - IEI Technology prox.pad Installation & Programming Manual

5.4

Performing Power Supply Integrity Test

This test confirms whether or not the power source is providing sufficient amperage to support all the equipment. It indicates whether
or not a stable electrical environment exists by revealing fluctuating voltages during operations. A fluctuation in voltage exists when
the equipment draws more amperage than the power supply offers.
1. As the prox.pad unit cycles the equipment ON and OFF, power must remain constant. If a voltage fluctuation of one-quarter
volt or more occurs during testing, in either the positive or negative direction, the test results indicates a "fail" response. If the
voltage retains proper amplitude (remains constant), the test indicates a "pass" response.
2. Set the meter to read voltage and place meter probes on the red and black wires of P1, located on the prox.pad unit. You may
have to reference
located on the controller. The voltage reading is monitored throughout the entire test.
3. With power being applied to the entire prox.pad unit, enter a valid code on the prox.pad keypad. The REX input can be used
in place of a valid code; the test results remain the same. Reference the keypad circuits diagram for REX input, located in
Chapter 2 of this manual.
4. Observe the meter as the keypad cycles the system ON and OFF. The voltage must remain constant during this operation,
indicating that the electrical system is stable and adequate. Constant voltage during the test indicates a "PASS" response. If
the voltage changes more than one-quarter of a volt (.25), the test indicates a "FAIL" response.
5. If the test indicates a "FAIL" response, then there is likely and issue with your power supply. Correct the problem, then run
the test again. If the test indicates a "PASS" response, then continue troubleshooting the issue.
5.5

Correcting Possible Water Problems

prox.pad units that are mounted outdoors require certain preventive steps to avoid being damaged by water. This section discusses the
reasons water can accumulate in keypads and the steps to prevent this.
5.5.1

Silicone

1. Use silicone to seal wire runs and mounting holes.
2. Do NOT seal the cover and base together. Keypads are designed to direct any water that enters the two constituent pieces,
base and cover, towards the bottom and out a drain or weep hole.
5.5.2 Wire Run
Bend the wires before they enter the case to form a drip loop. Often water follows the wires to the connection point of the circuit board
and shorts out the terminals to which the wires are connected.
5.5.3 Lithium Battery Replacement
Replacement Battery: Panasonic BR1225, Renata CR1225 or Varta CR1225; Refer to caution below.
Document # 6055676, Rev 2.2, D4b
Figure 2 for details. If the prox.pad unit consists of two parts, a reader and a controller, the terminals are
Caution: Replace battery with types listed above only. Use
of another battery may present risk of fire or explosion.
Battery may explode if mistreated. Do not recharge,
disassemble or dispose of battery in fire.
prox.pad Installation/Programming Manual
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