JP2002342853A - Diagnosing device for fire receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a diagnosing device for a fire receiver capable of being easily carried, easily handling a test apparatus, and minimizing the misconnection. SOLUTION: This diagnosing device for the fire receiver is provided with a common connection terminal connected to a common terminal of the fire receiver, plural line connection terminals connected to plural line terminals of the fire receiver, three dummy resistors connected to one of the common connection terminal and the line connection terminals, a load test change-over switch selectively connecting one of three dummy resistors and connected to the other of the common connection terminal and the line connection terminal, and a case for storing three dummy resistors and the load test change-over switch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a diagnostic apparatus for a fire receiver.

[0002]

2. Description of the Related Art Since a P-type fire receiver is used for a long period of time, for example, 20 years or more, it is considered that the function of the P-type fire receiver is deteriorated due to aging, and it is necessary to check whether or not the fire receiver is normal. There is.

[0003] For example, when checking the impressed current value of the relay of the fire receiving circuit, the charging current value of the spare battery charging circuit, and the indicated value of the continuity test circuit, open the door of the fire receiver, and check the ammeter and the voltage. A plurality of test instruments such as a meter, a variable resistor, and a resistor are connected in a panel, a circuit is assembled, and then a check operation is performed.

[0004]

However, in the above-mentioned conventional example, when the measurement on the first line is completed and the operation is shifted to the second line, first, the recovery switch on the panel of the fire receiver is pressed, and the fire is stopped. Release the fire reception holding state of the receiver, and
The external line of the line is disconnected from the terminal with a driver, and instead of the external line of the second line, the crocodile clip removed from the terminal of the first line is connected to the terminal of the first line where the measurement is completed. , Attach the first line external line removed before the measurement,
This mounting part is fixed with a screwdriver. These series of operations need to be executed every time measurement is completed for one line, and this operation is complicated.

[0005] Further, the above-mentioned conventional method requires the above-mentioned plurality of test instruments, so that it is troublesome to carry the plurality of test instruments, and the circuit is assembled in the air in the panel. Therefore, there is a problem that it is difficult to handle the test instrument, and furthermore, there is a possibility that the circuit assembly may be erroneously connected and the operation is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a diagnostic apparatus for a fire receiver, which is easy to carry, easily handles test equipment, and has a very low possibility of erroneous connection. is there.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a common connection terminal connected to a common terminal of a fire receiver, a plurality of line connection terminals connected to a plurality of line terminals of the fire receiver, Three dummy resistors connected to one of the common connection terminal and the line connection terminal;
A fire that selectively connects one of the three dummy resistors, and that is connected to the other of the common connection terminal and the line connection terminal, a load test changeover switch; and the three dummy resistors. It is a diagnostic device for a receiver.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view and a front view of a fire receiver diagnostic apparatus 100 according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram showing a diagnostic apparatus 100 for a fire receiver.

The fire receiver diagnostic device 100 includes a common connection terminal t11 connected to a common terminal of a P-type fire receiver RE and a common connection terminal t11 connected to a plurality of arbitrary line terminals of the fire receiver RE. Connection terminals t12 and t13, a first oscilloscope connection terminal t16 connected to the common connection terminal t11, a second oscilloscope connection terminal t17, a charge current test terminal t14, and a charge current test terminal t15.

Note that three or more line connection terminals may be provided instead of the line connection terminals t12 and t13.

The fire receiver diagnostic device 100 has three
Three dummy resistors R1, R2, R3, three dummy resistors R4, R5, R6, and resistors R7, R9, R10
, A variable resistor R8, and switches SW1, SW2, SW
3, SW4, SW5, SW6, meter M1, and case CS1.

The three dummy resistors R1, R2, R3 are:
This is an example of three dummy resistors connected to one of the common connection terminal t11 and the line connection terminal t13.

The resistor R7 is connected to a charging current test terminal t14.
And t15. The variable resistor R8, the resistors R9 and R10 are connected in series with each other. Note that the variable resistor R8 is connected to the alert current confirmation volume VR1.
Adjusts the resistance value.

The switch SW1 is connected to a line connection terminal t1.
This is a switch for selecting one of T2 and t13. The switch SW1 selects one of the plurality of line connection terminals and connects the variable resistor R8 and the ammeter M1 between the selected line connection terminal and the common connection terminal t11. Are examples of line switching switches that connect series circuits connected in series.

The switch SW3 has three dummy resistors R
1, R2, R3 and three dummy resistors R4, R
This is a switch for selecting a fire receiver type for selecting one of the sets of R5 and R6.

The changeover switch SW2 is a switch for selecting whether to connect the line connection terminal selected by the switch SW1 to the switch SW3 or to the variable resistor R8 and the switch SW6.

The switch SW4 is connected to the dummy resistors R1, R
2, one of the resistors R3 and a dummy resistor R4,
This is a switch for selecting one of R5 and R6. The switch SW4 selectively connects one of, for example, three dummy resistors R1, R2, and R3, and is used for a load test connected to the other of the common connection terminal t11 and the line connection terminals t12 and t13. It is an example of a changeover switch.

The switch SW5 is a switch in which two switches are linked, and is a switch for selecting one of the terminals A, B, and C as a terminal to which the terminal of the meter M1 is connected. On the side of the first switch SW5 (the lower switch SW5 in FIG. 2), the terminal A is connected to the terminal t17, the terminal B is connected to the connection point between the resistors R9 and R10, and the terminal C is It is connected to the terminal t14 via the fuse F.

In the second switch SW5 (the upper switch SW5 in FIG. 2), the terminals A and B are connected to the resistors R1 to R1.
The terminal C is connected to the terminal on the opposite side of the switch SW4 of R6, and the terminal C is connected to the terminal t15.

The switch SW6 is connected to series resistors R8, R9,
It is connected between one end of R10 and terminal t11.

When measuring the line voltage of the line, the meter M1 is connected to the first oscilloscope connection terminal t1.
6 is an example of a voltmeter connected to the second oscilloscope connection terminal t17, and a case CS1 is a case for storing the components shown in FIG.

Next, the operation of the above embodiment will be described.

First, in the above embodiment, the fire receiver R
The operation when testing the line continuity detection circuit in E will be described.

FIG. 3 is an equivalent circuit diagram of the diagnostic device 100 when testing the line continuity detecting circuit in the fire receiver RE.

First, before the test, as shown by the mark x in FIG. 3, the external line of the line to be tested is disconnected from the line terminal of the receiver RE, and the common terminal of the receiver RE and the common connection terminal t11 are connected. And the line connection terminal t12 is connected to the line terminal of the line previously disconnected. And the variable resistor V
R (in FIG. 2, a circuit indicated by a switch SW4 and resistors R1 to R6) is changed to a predetermined value,
The fire receiver RE is diagnosed by looking at the continuity meter M2 provided in the fire receiver RE.

That is, the state of the three resistance values between the detector connection terminals of the fire receiver RE, that is, the maximum load of the detector circuit (the maximum number of smoke detectors S that can be connected to one line (for example, 30 ) And the specified terminating resistor are connected in parallel), when only the specified terminating resistor is connected, and when the maximum number of detectors S is connected (no terminating resistor), a corresponding dummy resistor is given and the Check that the indicated value of the continuity test meter M2 on the panel of the receiver RE is in the continuity range in the case of, in the case of, in the design standard range, and in the case of, in the disconnection range. A diagnosis is made as to whether disconnection and continuity are correctly determined.

First, it is confirmed that the voltage in the state of use between the sensor connection terminals of the fire receiver RE is within a normal range. This step is unnecessary if the voltage has already been confirmed by another diagnosis.

Next, one external line is disconnected from an arbitrary line terminal at the sensor connection terminal (common terminal, line terminal) of the fire receiver RE, and the diagnostic device 100 is connected to this line terminal.
The crocodile clip from the line connection terminal t12 of the diagnostic device 100 is connected to the common terminal.
Connect the alligator clip from Step 11. 1 and 2, the switch SW1 is selected on the G side (terminal t12 side in FIG. 2), the switch SW2 is selected on the I side (continuity test), and the switch SW3 is set on the fire receiver to be diagnosed. Select the dummy resistor group corresponding to the type, for example, the K side (10 kΩ type).

Then, first, the switch SW4 is switched to the D side (terminal only), and it is confirmed that the indication on the panel of the fire receiver RE, that is, the continuity test meter M2 of the door is within the set reference range. Similarly, the switches SW4 are sequentially switched to the terminals E and F connected to the dummy resistors R2 and R3 corresponding to the above, and it is confirmed that each of them is within a predetermined instruction range.

Similarly, a line to be sequentially tested may be selected, and the test may be sequentially performed by the above-described method.

In the above-described embodiment, R1 and R4 are defined terminating resistors, R2 and R5 are resistors in which the designated terminating resistance and the equivalent resistance corresponding to the maximum number of smoke detectors connected are connected in parallel, R3 , R6 are set to resistance values indicating the equivalent resistance when the maximum number of smoke detectors are connected.
In the above embodiment, it is not necessary to sequentially attach / detach three small resistors to / from the sensor connection terminal, or if a variable resistor VR is used, it is set by a resistance meter (not shown) that the set resistance value is correct. Since it is not necessary to measure the variable resistor VR every time, the diagnostic operation is easy. Although the combination of the resistors differs depending on the type of the fire receiver RE, a plurality of the combinations of the resistors (two in the above embodiment) are arranged by the number of the types of the fire receiver RE, and the switch SW3 is switched. In this case, there is no need to carry various types of resistors, there is no risk of losing the resistors, and there is no possibility of connecting unsupported resistors.

Next, in the above embodiment, the fire receiver R
A description will be given of a case where the moving current value of the receiving relay in E is measured, that is, an operation in the fire receiving circuit diagnosis.

FIG. 4 is an equivalent circuit diagram of the diagnostic device 100 in the case of measuring the moving current value of the receiving relay in the fire receiver RE.

First, before the test, as shown by crosses in FIG. 4, the outer lines of the two lines to be tested are disconnected from the line terminals of the receiver RE, and the common terminal and the common connection terminal of the receiver RE are disconnected. t11, and line connection terminals t12, t13
And the line terminal of the receiver RE removed earlier, respectively. 1 and 2, the switch SW1 is connected to the G side (see FIG. 2) when the sensing current value of the receiving relay connected to the line connection terminal t12 is measured.
Switch t2 side), switch SW2 selects J side (report current check), and switch SW5 selects B side (report current).
Is selected. Then, the variable resistor R8 is adjusted to a larger resistance value so as to have a current value smaller than the moving current value of the reception relay RY, and the resistance value is gradually reduced. Since the receiving relay operates on the way and the fire indicator lights up, the current value at that time is read by the meter M1. This read value is the moving current value.

Next, the switch SW1 is switched to the H side (terminal t13 in FIG. 2) to select another line connection terminal t13, and the variable resistor R8 is adjusted in the same manner as described above.

The current (sensing current value) flowing when the sensor of the circuit connected to the fire receiver RE issues an alarm is measured, the minimum sensing current value of the activated receiving relay is measured, and the measured minimum sensing value is measured. It can be determined whether the current value exists in the design reference range.

In the above embodiment, a desired line is selected by switching the line changeover switch SW1 of the diagnostic device 100. Therefore, when the test of the fire receiving circuit is completed, these terminals t12 and t13 are removed at once. And the terminal can be easily removed.

Note that instead of the terminals t12 and t13, 3
If more than two terminals are provided, three or more lines can be inspected sequentially by one setting.

Next, the operation in the case of measuring the voltage between the connection terminals of the sensor S in the above embodiment will be described.

FIG. 5 is an equivalent circuit diagram of the diagnostic device 100 when measuring the voltage between the connection terminals of the sensor S.

First, the terminal t11 and the common terminal of the fire receiver RE are connected to the terminal t12 and the line terminal of the line to be diagnosed, respectively, with the sensor connected. The connection relationship will be described with reference to FIGS.
1 selects the G side (terminal t12 in FIG. 2) and switches SW2
Selects the I side (line voltage), the switch SW5 selects the A side (line voltage), and the oscilloscope connection terminals t16 and t16.
An oscilloscope probe is connected to 17. Then, only the ripple (unstable swing width) in the line is measured using the oscilloscope 10, and the voltage between the lines is calculated as
It is read from the meter M1 of the diagnostic device 100.

It is measured whether the ripple in the voltage applied between the smoke sensor connection terminals and the voltage waveform is within the design reference range. This measurement is performed both in a normal monitoring state and in a state in which a plurality of other lines issue a fire and hold a fire reception. By this measurement, it can be confirmed that the operation is not affected by the operation status of the other line.

In the normal monitoring state, the diagnostic device 100
And read the voltage and ripple with an oscilloscope. Next, in the alarm holding state, the user turns the rotary switch for the line test on the panel of the fire receiver RE to specify another line. For example, the oscilloscope turns the fire receiver RE on.
If it is connected to the first line, the sixth line to the tenth line are designated at the same time (if no recovery is made, the alarm is automatically held), and the diagnostic device is Read the voltage and ripple with 100 and an oscilloscope.

By the way, in the above embodiment, the fire receiving circuit diagnosis is performed in the previous stage, and subsequently, the fire detector S
When measuring the voltage between the connection terminals, the oscilloscope connection can be obtained by simply switching the switch SW2 without the troublesome attachment / detachment work of attaching / detaching the inspection terminal to / from the line terminal in the panel of the fire receiver RE. Since the oscilloscope 10 can be easily connected to the terminals t16 and t17 and the oscilloscope 10 can be connected, the connection operation of the oscilloscope 10 is easy.

Next, in the above embodiment, the fire receiver R
The operation of measuring the charging current of the spare battery BT built in E will be described.

FIG. 6 is an equivalent circuit diagram of the diagnostic device 100 when measuring the charging current of the spare battery BT incorporated in the fire alarm device RE.

First, confirm that the AC power supply has the rated voltage. Also, press the standby power switch on the panel of the fire receiver RE to confirm that the voltage is within the specified voltage range and that the standby battery BT is normal.

Then, the fuse is removed from the terminals FH1 and FH2 of the fuse holder connected in series with the spare battery BT built in the fire receiver RE, and the diagnostic device 1
The charging current test terminals t14 and t15 of 00 are respectively connected to the terminals FH1 and FH2 of the fuse holder.
In FIG. 2, the switch SW5 selects the C side (charging current).

By doing so, the spare battery B
The charging current of T flows through the resistor R7, and the voltage across the resistor R7 is measured by the meter M1.
The value of the charging current of T is displayed.

FIG. 7 shows the backup battery B in the above embodiment.
FIG. 4 is a diagram showing a charging current test adapter 20 used when measuring a charging current of T;

The charging current test adapter 20 includes a first electric wire 21, a second electric wire 22, and terminals t14 'and t15'.
And a T-shaped support 23, which has a support branch 24.

The first electric wire 21 is an electric wire whose one end is connected to one terminal of the ammeter M1.
Reference numeral 2 denotes an electric wire having one end connected to the other terminal of the ammeter M1.

The terminal t14 'is connected to the other end of the first electric wire 21 and is fixed to one end of the T-shaped support 23.
The terminal t15 'is connected to the other end of the second electric wire 22,
It is fixed to the other end of the character-shaped support 23. Also, the terminal t
The distance L between 14 'and t15' is the same as the distance L between the terminals FH1 and FH2 of the glass tube fuse holder.

The T-shaped support 23 has a shape similar to that of a glass tube fuse, and the support branch 24 is protruded from the body of the T-shaped support 23 in a branch shape, and is wound with a binding material. To fix the electric wires 21 and 22. T-shaped support 23
Is an example of an interval fixing means for fixing the interval between the first terminal and the second terminal to the same length as the terminal interval between the terminals FH1 and FH2 of the glass tube fuse holder.

As long as the charging current test adapter 20 is fitted into the terminals FH1 and FH2 of the glass tube fuse holder, the charging current of the spare battery BT can be measured, and the operation of measuring the charging current of the spare battery BT is easy. is there. That is, the terminals FH1 and FH of the two glass tube fuse holders
2 can be executed with one touch. In addition, since the charging current test adapter 20 is a terminal substantially similar to a glass tube fuse, it can be easily connected and detached by replacing the glass tube fuse with the glass tube fuse. Since it has a function as a part, it is extremely easy to attach and detach in this respect as well.

FIG. 8 shows the backup battery B in the above embodiment.
FIG. 4 is a diagram showing a charging current test adapter 30 used when measuring a charging current of T;

The charging current test adapter 30 is connected to the electric wire 3
1, 32, a resin clip 33, terminals t14 ″, t
15 ″.

The first electric wire 31 is an electric wire whose one end is connected to one terminal of the ammeter M1.
Reference numeral 2 denotes an electric wire having one end connected to the other terminal of the ammeter M1.

The terminal t 14 ″ is connected to the other end of the first electric wire 31 and is fixed inside one end of the resin clip 33. The terminal t15 ″ is connected to the other end of the second electric wire 32 and is fixed inside the other end of the resin clip 33. Further, the interval L between the terminals t14 ″ and t15 ″ is
It is the same as the distance L between the terminals FH1 and FH2 of the glass tube fuse holder.

Since the terminals t14 "and t15" are fixed inside the holding portion of the wide resin clip 33, the connection operation between the terminals FH1 and FH2 of the glass tube fuse holder can be executed with one touch. Can be.

FIG. 9 shows that the diagnostic device 100 is a
It is a perspective view showing the example attached to.

A magnet 71 is fixed to the surface (side or back) of the case CS1 of the diagnostic device 100, and the fire receiver R
When testing E, the magnet 7 is attached to the side wall 51 of the fire receiver RE.
1, the door 52 of the fire receiver RE is opened, and an electric wire from the diagnosis device 100 is connected to a required portion such as the terminal block 61 of the fire receiver RE.

In this case, on the side wall 51 of the fire receiver RE,
Since the case CS1 of the diagnostic device 100 is magnetically attracted,
The operator can use both hands freely, thus improving workability. In addition, 62 is an outside line entrance.

FIG. 10 is a perspective view showing a diagnostic apparatus 200 according to a second embodiment of the present invention.

The diagnostic device 200 is basically the same as the diagnostic device 100,
Is different from the diagnostic device 100 in that the locking means 72 is fixed to the case CS2 of the diagnostic device 200 instead of the diagnostic device 100.

A string or a band is provided as the locking means 72,
By lowering these straps or sashes on the neck or shoulders, the operator can carry easily, and both hands are free during testing.
Workability is improved.

FIG. 11 is a perspective view showing a diagnostic apparatus 300 according to a third embodiment of the present invention.

The diagnostic device 300 is basically the same as the diagnostic device 200 except that the hook 73 is fixed to the case CS3 of the diagnostic device 300 instead of the locking means 72 in the diagnostic device 200. It is different from the diagnostic device 200.

By providing the hook 73, the hook 73 can be hooked on or under the door 52 or the main body of the fire receiver RE, so that both hands are free at the time of the test and workability is improved.

FIG. 12 is a perspective view showing a diagnostic apparatus 400 according to a fourth embodiment of the present invention.

The diagnostic device 400 is basically the same as the diagnostic device 200 except that the clip 74 is fixed to the case CS4 of the diagnostic device 400 instead of the locking means 72 in the diagnostic device 200. It is different from the diagnostic device 200.

By opening the door 52 of the fire receiver RE and holding the side wall 51 with the clip 74,
0 can be fixed, so that both hands are free at the time of a test, and workability is improved.

Incidentally, in addition to the above-mentioned system stopping means, a suction cup may be provided on the surface of the case.

[0075]

According to the present invention, the diagnostic device for a fire receiver can be easily carried, and the diagnostic device for a fire receiver can be easily handled. There is an effect that the possibility of erroneous connection is extremely small.

[Brief description of the drawings]

FIG. 1 is a plan view and a front view of a fire receiver diagnostic device 100 according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram showing a diagnostic apparatus 100 for a fire receiver.

FIG. 3 is an equivalent circuit diagram of the diagnostic device 100 when testing a line continuity detection circuit in the fire receiver RE.

FIG. 4 is an equivalent circuit diagram of the diagnostic device 100 when measuring a moving current value of a receiving relay in the fire receiver RE.

FIG. 5 is an equivalent circuit diagram of the diagnostic device 100 when measuring a voltage between connection terminals of the sensor S.

FIG. 6 shows a spare battery BT built in the fire receiver RE.
FIG. 2 is an equivalent circuit diagram of the diagnostic device 100 when measuring a charging current of the diagnostic device 100.

FIG. 7 shows a charging current test adapter 20 used for measuring the charging current of the spare battery BT in the above embodiment.
FIG.

FIG. 8 shows a charging current test adapter 30 used for measuring the charging current of the spare battery BT in the above embodiment.
FIG.

FIG. 9 is a perspective view showing an example in which the diagnostic device 100 is attached to a fire receiver RE.

FIG. 10 shows a diagnostic apparatus 200 according to a second embodiment of the present invention.
FIG.

FIG. 11 shows a diagnostic apparatus 300 according to a third embodiment of the present invention.
FIG.

FIG. 12 shows a diagnostic apparatus 400 according to a fourth embodiment of the present invention.
FIG.

[Explanation of symbols]

100, 200, 300, 400 ... fire receiver diagnostic device, t11 ... common connection terminal, t12, t13 ... line connection terminal, t14 ... charge current test terminal, t15, charge current test terminal, t16 ... 1, an oscilloscope connection terminal; t17, a second oscilloscope connection terminal; R1, R2, R3, R4, R5, R6, a dummy resistor, R8, a variable resistor, M1, a meter, CS1, CS2, CS3, CS4: Case, 71: Magnet, 72: Locking means, 73: Hook, 74: Clip.

Claims (6)

[Claims] A connection terminal connected to a common terminal of the fire receiver; a plurality of connection terminals connected to a plurality of line terminals of the fire receiver; a connection terminal for the common; 3 connected to one of the connection terminals
And a load test change-over switch for selectively connecting one of the three dummy resistors and connected to the other of the common connection terminal and the line connection terminal. A diagnostic device for a fire receiver, characterized in that: 2. A connection terminal for common connected to a common terminal of a fire receiver; a plurality of connection terminals for lines connected to a plurality of line terminals of the fire receiver; and a variable resistor and an ammeter. A series circuit connected in series; and selecting one line connection terminal from the plurality of line connection terminals;
A line switch for connecting the series circuit between the selected line connection terminal and the common connection terminal. 3. The oscilloscope connection terminal connected to the common connection terminal; a changeover switch for selecting and switching one of the plurality of line connection terminals; A second oscilloscope connection terminal connected to the line connection terminal selected by the switch; and a voltmeter connected to the first oscilloscope connection terminal and the second oscilloscope connection terminal. A diagnostic device for a fire receiver, characterized in that: 4. An ammeter; and one terminal of the ammeter,
A first wire having one end connected thereto; a second wire having one end connected to the other terminal of the ammeter; a first terminal provided at the other end of the first wire. A second terminal provided at the other end of the second electric wire; and a distance between the first terminal and the second terminal fixed to the same length as a terminal distance of the glass tube fuse holder. Diagnosing apparatus for a fire receiver, comprising: 5. The fire receiver according to claim 1, further comprising: a case accommodating the diagnostic device; and a magnet fixed to a surface of the case. Diagnostic device. 6. The fire receiver according to claim 1, further comprising: a case accommodating the diagnostic device; and locking means for locking the case. Diagnostic device.