Ritron Quick Talk Owner's Manual download pdf (Page 18)

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Quick Talk Features/ Applications Manual

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1. ANALOG INPUT MODE: Voltages above High Threshold

Setpoint cause Switch 1 OPEN message to transmit.

Voltages below Low Threshold Setpoint cause Switch 1

CLOSED message to transmit. The dead zone—an area of

hysteresis provided by the difference between High and

Low Threshold Setpoints—prevents unwanted messages,

caused by noise or minor signal changes. See Fig–8.

When the input is in CLOSED condition, a change to OPEN

condition occurs only when the signal exceeds the High

Threshold Setpoint. Similarly, when the input is in OPEN

condition, the change to CLOSED condition occurs only

when the signal is less than the Low Threshold Setpoint.

To Set Analog Input Mode:

a. Pick up the telephone receiver and listen for the

acknowledge tone.

b. Dial "8162" to set Quick Talk to Analog Input Mode—

a beep indicates the command is accepted.

c. Dial "999", wait for the beep, then hang up the

telephone to complete programming.

HIGH THRESHOLD SETPOINT

NOTE:

No messages is sent until

a threshold is crossed.

LOW THRESHOLD SETPOINT

0 MIN.

MIN.

Q.T.

SWITCH

OPEN

MESSAGE

2 MIN.

Q.T.

SWITCH

CLOSED

MESSAGE

FIG–8. ANALOG INPUT MODE (EXAMPLE)

2. TERMINATED ALARM INPUT MODE: This mode is useful

in security alarm applications, where the "Secure" (Good)

condition is a range of voltages. Voltages above or below

this range represent "Alarm" (Bad) conditions. See Fig–9.

The "Secure" condition is the range of voltage between the

High and Low Threshold Setpoints. Switch 1 OPEN

message is activated in this range. Voltage above High

Threshold Setpoint, or below Low Threshold Setpoint

activates the Switch 1 CLOSED message.

To Set Terminated Alarm input Mode:

a. Pick up the telephone receiver and listen for the

acknowledge tone.

b. Dial "8163" to set Quick Talk to Terminated Alarm Input

Mode—a beep indicates the command is accepted.

c. Dial "999", wait for the beep and then hang up the

telephone to complete the programming.

Setting the High Threshold Setpoint in either Analog

Input, or in Terminated alarm Input Mode:

a. Pick up the telephone receiver and listen for the

acknowledge tone.

b. Dial "818xxx", "xxx" being the selected code from Table 1,

below. A beep indicates the command is accepted.

EXAMPLE:

185 represents a threshold of

approximately 3.6 Volts. Dial "818185" to set

3.6 Volts as the High Threshold Setpoint.

c. Dial "999", wait for the beep, then hang up the

telephone to complete the programming.

Setting the Low Threshold Setpoint in either Analog

Input, or in Terminated alarm Input Mode:

a. Pick up the telephone receiver and listen for the

acknowledge tone.

b. Dial "817xxx", "xxx" being the selected code from Table 1,

below. A beep indicates the command is accepted.

EXAMPLE:

85 represents a threshold of

approximately 1.6 Volts. Dial "817085"

to set

1.6 Volts as the Low Threshold Setpoint.

NOTE: Inserting a zero before a 2-digit number

(Example: "85"), completes the command.

Insert two zeros in front of a one-digit

number.

c. Dial "999", wait for the beep, then hang up the

telephone to complete the programming.

To revert to Contact Closure Mode, using Switch 1

as a Contact Closure Input:

a. Pick up the telephone receiver and listen for the

acknowledge tone.

b. Dial "8161"—a beep indicates the command is

accepted.

c. Dial "999", wait for the beep, then hang up the t

elephone to complete the programming.

— TABLE 10 —

THRESHOLD

VOLTAGE CODE

SETTING NUMBER

0 volts

............................

000

1 volt

.............................

051

2 volts

............................

102

3 volts

............................

153

4 volts

............................

204

5 volts

............................

255

SETTING ANALOG MODES

(continued from page 15)

HIGH THRESHOLD SETPOINT

LOW THRESHOLD SETPOINT

"SECURE"

"ALARM"

"MALFUNCTION"

FIG–9. TERMINATED ALARM INPUT MODE

(EXAMPLE)

1 2 ... 13 14 15 16 17 18 19 20 21 22 23

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