TAI TIEN ELECTRIC (NANJING) CO LTD.

TAI TIEN ELECTRIC (NANJING) CO LTD.
QUARTZ WATCH ANALYZER
MODEL:QWA-5A
TAI TIEN ELECTRIC (NANJING) CO LTD.
中國江蘇省南京市江寧開發區池田路 18 號
NO 18 CHI TIEN RD.,JIANGNING ECONOMIC AND TECHNICAL
DEVELOPMENT ZONE, NANJING CITY, JIANSU PROVINCE, P.R.CHINA.
TEL: +86-25-52108713,52108714
FAX: +86-25-52102580
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QC1003-03TN-A
QUARTZ WATCH ANALYZER
QWA-5A
SECTION Ⅰ-----------
GENERAL INFORMATION
1-1 This manual contains information necessary to install, operate, test and
adjust the Model QWA-5A Quartz Watch Analyzer.
1-2 Instrument and Manual Identification.
1-3 Unpack the QWA-5A and save the packing materials for future unit
storage or transportation.
1-4 Check for the following items ,which are supplied with the QWA-5A
²
Operating Manual
²
Watch Module Test Pedestal with cable
²
QWA-5A Main Assembly
²
Power Cord
²
Set Test Probes
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COMPUQUARTZ
ANALYSIS
Item
QWA-5A
Vibrograph
Citiren CQT-201
Microprocessor Technology
Yes
No
No
Single Unit-All tests
Yes
No
No
Test to Watch Mfg .Specs.
Yes
No
No
Test to Battery Mfg. Specs.
Yes
Yes
No
Sound Monitor
Yes
No
No
Analog Watch
Yes
Yes
Yes(Time Only)
Digital Watch
Yes
Yes
Yes(Time Only)
Clock Module
Yes
Yes
NO(optional)
Crystal Test
Yes
No
No
Self Test
Yes
No
No
Limit Test
Yes
No
No
Seconds Per Day
Yes
only
only
Seconds Per Month
Yes
No
No
Parts Per Million
Yes
No
No
4sec
2,4,10,60 sec
Time Accuracy
Speed
Digital-fast/normal
0.25/1.25sec
Analog-fast/normal
2sec/10sec
Voltage Testing
Yes
Yes
No
Motor Drive Voltage
Yes
Yes
No
LCD/Display Voltage
Yes
No
No
Battery Voltage
Yes
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Yes
No
QC1003-03TN-A
Resistance Measured for:
Switch Contacts
Yes
Yes
No
Battery Contacts
Yes
Yes
No
Lamp Resistance
Yes
Yes
No
Motor Coil
Yes
Yes
No
Display Segments
Yes
Yes
No
Lamp Test
Yes
Yes
No
Pulsing Current
Yes
Yes
No
Time Based
10MHz TCXO
8.6MHz
4.32MHz
Accuracy
2*10-7(Ann1)
Current:
100-240V
1*10-9(Short
term)
2*10-8(Short
term)
220V(110 opt) 100V 10% Std
Power
50-60Hz Std
SECTION Ⅱ
----
50-60Hz Std
60Hz
INSTALLATION
2-1 Introduction
2-2 This section contain information necessary to install QWA-5A
2-3 Preparation for use
2-4 Power requirements
2-5 Connect the power cord to the main assembly, and connect plug to power
source. The power required for QWA-5A poeration is 110V/220V 50/60Hz.
Attach the Watch Module Test Pedestal cable to the connector on the Main
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Assembly.
2-6 Self Test
2-7 To turn the QWA-5A on, press the power switch. The unit will begin a self
test procedure whenever it is turned on. This procedure will illuminate the
display, provide an audible beep, and step through the function light as
follows:
+9999
-8888
+7777
-6666
+5555
-4444
+3333
-2222
+1111
-0000
ppm
s/d
s/m
Vvar
pass
fail
VΩ
k
ma
μa
2-8 When the unit completes this process it is ready to begin use for
watch/clock testing. On initial power on. The local clock should be set
using the Fast/Slow control on the rear of the Main Assembly. This clock
will continue to operate as long as the Main Assembly is connected to the
Power Source ,regardless of the Main Assembly power being On or Off.
2-9 Panel Description(Fig.3.1)
1
Sensor
This is where a clock or watch is placed for testing
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2/3 Analog/Digital Select
Switch
To test a clock or watch that has a stepping motor, the
switch is at ANALOG. To test a Digital watch,
clock/watch module, or crystal frequency 32768Hz the
switch is at DIGITAL
4
5
6
Signal Level
Indicates the signal level sufficient to assure stable
Indicator
reading
Power Indicator of
Lights when the sensor is connected properly to the
Sensor
main unit and the power switch is ON.
Power Switch
Applies power to unit
Indicator
7
PM. Indicator
ON when the clock shows PM time
8
Clock
Provides time of day reference and operates when the
power cord is connected
9
Signal Indicator
The lamp is ON when sufficient signal is detected and
received at the main unit. It will flicker as fast as the
testing speed.
10 Test Speed
There are two test speeds. FAST and SLOW, and the
lamp will be ON when the selected speed is FAST.
11 Negative Sign
Indicator
12 Positive Sign
Indicator
13 Digital Display
It indicates NEGATIVE for voltage and current, and
SLOW for timing.
It indicates POSITIVE for voltage and current, and
FAST for timing.
Displays measurement results.
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14 Voltage/Signal Test
Selects the voltage test and signals test
Key
15 Resistance Test Key
Selects the resistance and continuity test.
16 Current Test Key
Selects the current consumption test.
17 Variable Voltage
This key is timed to display the variable voltage source
Source Monitor Key
18 Sec/Month
Measurement Key
19 Sec/ Day
Measurement Key
20 PPM Measurement
Key
21 “PASS/FAIL”
Indicator
output in Volts
Selects the timed accuracy measured in the unit of
“seconds/month.”
Selects the timed accuracy measured in the unit of
“seconds/day”
Selects the time accuracy measured in the unit of “parts
par million”. It is commonly used to test watch crystals.
Indicates whether the result of limit comparison is
PASS or FAIL.
22 Function Indicator
This indicates the function selected
23 Set Keys for Limit
Used to set the limit for comparison
Comparison
24 Upper Limit Set Key
Used to display or reset the Upper Limit
25 Lower Limit Set Key
Used to display or reset the Upper Limit
26 Test Speed Select
Select the test speed
Key
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27 Polarity of Limit Set
Key
This key is used to set the polarity of both Upper and
Lower Limit
28 Voltage/Signal
These connectors are used to connect test probes for
Resistance Test
voltage signal and resistance measurement
29 1.5V Simulated
These Connectors are used to output the simulated 1.5
Battery Connector
volt battery source.
30 Variable Voltage
These connectors are used to output the variable
Source Connector
voltage source.
31 Sensor Connector
This connector is used to connect the sensor
32 Variable Voltage
This know is used to adjust the voltage , range 0~6 Vdc
Adjustment
33 Earphone Connector
This connects the earphone for signal monitoring
34 Test Socket for
This socket is for testing 32768Hz watch crystal.
Watch Crystal
SECTION Ⅲ
----
Accuracy at the load capacitance of 12pf, is 15ppm .
OPERATION
3-1 Introduction
3-2 This section contains information necessary for operation of Model
QWA-5A
3-3 Variable Voltage Test.
3-4 This test verifies watch module or clock operation before any other tests.
It also determines lowest operating voltage of the module or clock under
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test, Figure 3-2 illustrates the procedure for performing the Variable test.
Preliminary Adjustments:
a. Set the QWA-5A to Vvar (Press key 17)
b. Connect probes to terminal 30.
c. Set Variable Voltage Output to zero by turning knob 32 fully counter
clockwise
d. Open clock/watch and remove battery.
e. Connect probes to clock/watch using correct polarity.
Test Procedure
f. Increase Voltage using knob 32 until clock/watch begins to operate.
g. Note value on display. This is minimum operating voltage for the
unit under test.
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3-5 Current Measurement/Power Consumption Measurement
3-6 This test determines the Power Consumption of the unit under test. By
measuring the current consumed .one can determine the power used by
the unit . Figure 3-3 illustrates the procedure used to perform this test.
Preliminary Adjustment:
a. Set QWA-5A to Current Measurement (press key 16)
b. Connect probes to terminal 29.
c. Open back of clock/watch and remove battery.
d. Connect probes to unit observing correct polarity.
Test Procedure
e. A reading will be displayed in 15 seconds. It takes this amount of
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time since the unit samples and averages the pulsing current.
f. The units displayed will be uA for watch modules and mA for clock
module. QWA-5A automatically displays the correct units.
Test Results
g. Note the reading on the QWA-5A
Analyzer Adjustment
h. If another reading must be made the QWA-5A display can rapidly
returned to zero by depressing key 14 after removing the probes
form the unit under test. The unit will return to zero normally 15
seconds after removal of the probes.
3-7 Timing Accuracy Measurement
3-8 This test is used to determine the accuracy of the time standard in the
clock/watch module. The units displayed for this test are Parts Per
Million (ppm), Seconds Per Day (S/d),Seconds Per Month (S/m).Figure
3-4 illustrates the procedure used to perform this test.
Preliminary Adjustments
DIGITAL UNITS
a. Set Analog/Digital Switch to Digital.
b. Place unit on test pedestal and move over covered area until signal
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meter needle is in Red zone.
ANALOG UNITS
c. Set Analog/Digital Switch to Analog
d.
Place units on test pedestal and move .over covered area until there is a
steady Pulsing of the needle join the signal meter.
Measurement of Accuracy
e. Select the units desired ,is ppm(key 20), sec/day(key 19) ,or
Sec/mo(key 18)
f. Display will indicate accuracy of units selected with a “+” on the display,
meaning fast or gaining time and a”-“on the display ,meaning slow or
losing time.
NOTE:
For the Analog units, select the FAST test speed, DEPRESS KEY 26, and see that
indicator light 10 is lit, the signal light,9. should be on to indicate the main unit is
receiving a signal.
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3 —9
3 — 10
Crystal Operation/Accuracy Test
This test determines whether a crystal is functioning, and if it is
functioning ,its accuracy. Figure 3-5 illustrates the procedure used for
this test.
Preliminary Adjustments
a. Set Analog/Digital Switch to Digital
b. Insert Crystal to be tested in Socket on Pedestal.
c. If needle of Signal meter is in Red zone. The crystal is functioning, if not,
then crystal is defective.
d. If crystal is functioning, this select FAST reading, key 26.
e. Select units, ppm key 20, and read the accuracy on display.
f.
Reading greater than 100ppm indicates an out of tolerance crystal.
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NOTE: To convert readings of ppm to seconds per day use the following formula:
Reading in PPMX.0864=seconds per day .
3-11 Battery Test
3-12 This test determines whether the battery used in the clock/watch is within
tolerance. Fig.3-6 illustrates the procedures used in the test.
Preliminary Adjustment
a. Select the V (Voltage) function by pressing key 14.
b. Insert probes into V.R. terminals (28).
c. Remove battery from clock/watch and connect probes. Observing the “+”
probe is connected to “+” terminal of battery and the “-“ probe is connected
to “-“ terminal of battery.
d. Dispose of battery of value is leas than published specification.
NOTE: In general the battery is considered out of tolerance if the measured value is less
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than those indicated below.
3-13 Motor Coil, Lamp Resistance, Open/Short Measurement.
3-14 This test verifies a motor coil by determining the motor coil resistance,
and checks the lamp of a digital unit by measuring its resistance Fig 3-7
illustrates the procedure used in this test.
Preliminary Adjustment
a. Set QWA-5A to resistance measurement by pressing “R” key (15).
b. Insert probes in V.R. terminals (28).
c. Open clock/watch and remove battery.
Motor Coil Measurement
d. Place probes across motor coil, and read display.
e. A reading of 3.4-3.7k or 4.3-4.8k indicates a functioning motor coil.
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f. Overflow, very high reading, or zero, indicates a defective motor coil.
Lamp Resistance Measurement
g. Place probe across lamp terminals, and display.
h. A reading 100Ω00.10KΩ,indicates an operating lamp.
i. Open/Short Test
j. Using manufactures specifications, use probes to determine if there are
opens (high reading) or shorts (zero reading).
3-15
Integrated Circuit Test
3-16
This test is to determine whether the Integrated Circuit (I.C)used to
control the watch operation is functioning properly ,Figure 3-8 illustrates
the procedure in this test.
Preliminary Adjustment
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a. Set QWA-5A to Voltage Measurement, V(16).
b. Connect probes to V.R. terminals (28).
c. Open watch back.
d. Connect probes to module, positive probe to IC, and negative probe to
ground.
e. A regular audible sound should be heard at approximately one tone
per second.
f. If there is no sound, or it is very fast the IC. is defective and the unit
should be returned to the manufacturer.
3-17
Production/Incoming Inspection Testing
3-18 This test in used to determine whether a clock/watch module is within
the manufactured tolerance on timing accuracy ,Using the “Limit
Storage” Ability of the QWA-5A. A Pass/Fail light will indicate whether
the item being tested meets the test parameters. Fig. 3-9 illustrates the
procedure used in this test.
Preliminary Adjustment
a. Set Analog/Digital Switch to Digital.
b. Press UL. (Upper Limit) key(24). The current value will be displayed.
This value is always 9999 when the power is turned on.
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c. Enter the new value, using the data Keys(0-9), and the sign of the value ,
“+” or “-“, key 27.
d. Store the UL. value by pressing key 24.
e. Repeat the step b c and d to set LL.(Lower Limit) value by pressing key
25.
Test Procedure
f. Select units (ppm S/d, S/m)to the measured by pressing key 18,19 or 20.
g. Place unit to be tested on covered area on pedestal. When needle is in
RED zone either the PASS light or the FAIL light will come on, indicating
the status of unit under test.
PASS light on = unit within tolerance
FAIL light on = unit outside tolerance
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