1 ZHZ8B medical pressure tester Summary
ZHZ8B Pressure test type pressure tester is applicable to all kinds of medical equipment, motors, electrical appliances, instruments, household appliances, test equipment to ensure the safety of all kinds of electrical equipment and necessary, this instrument is convenient and safe to operate on. And with automatic and manual boost in two ways, so it can be used in the production line. According to the national standard instrument GB9706.1 "General medical electrical safety requirements" and GB4706.1 "Design requirements" relevant provisions of safety of household and similar electrical appliances general in the.
2 ZHZ8B medical pressure tester Specification and technical characteristics
Two point one Technical indicators
Two point two The conditions of use
ambient temperature Zero ~ Forty C
The relative humidity is not more than Eighty %
AC power supply 220V Tolerance Ten %
Power consumption 30W
Size 370mm260mm177mm
The high voltage source voltage measurement circuit indicator
Regulator control logic
Weight: 25kg
3 ZHZ8B medical pressure tester Structure and block diagram
Three point one The instrument consists of a high voltage part and a control part . The control part is composed of power supply, logic circuit, overcurrent detection and timing part; pressure control part consists of automatic voltage rise control part. Start reset
Three point two Working principle
Instrument output AC voltage applied on the measured object, the formation of a current in the analyte in the loop I0 In the sampling resistance; R A voltage generated at both ends V0 , V0 The size and I0 Proportional, when I0 When the current exceeds the set alarm value, the instrument immediately alarm and immediately cut off the high voltage output.
Three point three The instrument function key layout, rear panel.
One Test voltage display Two Leakage current display
Three Test time display Four Status indicator
Five Set the button Six Zero indicator
Seven Start button Eight Reset button
Nine Ground terminal Ten High pressure indicator
Eleven The high voltage output end Twelve Power switch
One Power supply socket Two Fuse holder
Three Ground terminal
4 ZHZ8B medical pressure tester Use and operation
Four point one Connect the instrument power supply, open the power switch, the "power switch" lights on Ying Liang. When "back to zero" indicator "Ying Liang, voltage indicator window display value is zero. Such as "zero" indicator light does not shine, please wait! Instruments such as automatic zero return.
Four point two Click "Settings" button, the instrument enters the alarm current value is displayed on the display settings" I-- "And the current alarm value, when the clockwise rotation of the" set "button, each turn a numerical bit with a counterclockwise rotation; when the" set "button, each turn a bit value minus one. As in "rotating set" button while pressing the "reset" button, when the clockwise rotation of the "set" button, each turn style, numerical ten plus one; the counterclockwise rotation of the "set" button, each turn style, numerical ten minus one; as in the "set" button to rotate at the same time, the "start" button is pressed, the clockwise rotation of the "set" button, each turn a numerical 100 plus a counterclockwise rotation; the "set" button, each turn a numerical 100 minus one. The current alarm setting is finished, click "Settings" button to enter the test instrument, time setting, display" T-- "The test time and test time, the setting of the alarm current setting value. When the test time Zero When said the test time is infinite, the user must use the manual method to determine control testing. The test set is completed, and then click "Settings" button, the instrument enters the test voltage settings, display" U-- And the test voltage, test voltage settings with reported current value set. The test voltage setting is finished, click "Settings" button, the instrument enters the boost mode setting, display" A-- "And boost," On "On behalf of step-up mode for automatic booster," Off That way is the manual boost boost. Automatic booster, instrument start, automatic voltage rises to a predetermined voltage, and manual boost mode, the instrument is switched on, by rotating the "set" button to boost, when the clockwise rotation of the "set" button; when the voltage rises, the counterclockwise rotation of the "set" button when the voltage drop. Boost after the set, and then click "Settings" button, the instrument enters the half voltage function setting, display" H-- "And half voltage function selection," On "On behalf of half voltage mode," Off "Said the non half voltage mode. Half voltage mode, the instrument in the test qualified, do not immediately cut off the pressure, but in the back half of the voltage setting voltage after high pressure, the next test instrument from half voltage boost test. If the measured product is not qualified, the instrument directly cut off the pressure and return to zero.
Four point three High output high voltage test rod end is inserted into the instrument panel, the grounding end inserted in the grounding end of the instrument panel, and screw joint. The test rod and the other end of the analyte test end are respectively connected with the grounding end.
Four point four Check the above procedures are correct, and then click the "start" button can be tested. At this time, voltage rise slowly, when the voltage rises to the set voltage, time countdown. If the analyte is qualified, the test time is up , "Qualified" immediately bright lamp. If the measured object is not qualified, so in the process of testing the object to be measured is the breakdown of the moment, the alarm lights and buzzer alarm instrument is cut off at high pressure, automatic voltage regulator to zero instrument.
Four point five Whether the test results should be qualified or unqualified, instruments such as pressure regulator back to zero, "zero" light is zero before the demolition of connecting wire test voltage meter indicator.
5 ZHZ8B medical pressure tester Matters needing attention
Five point one The operation steps of operation personnel must be familiar with the instrument can be used.
Five point two The operation must be around the laying of high voltage insulation rubber.
Five point three When the instrument testing cannot adjust the instrument any buttons, knobs, plug and socket.
Five point four After the test instruments such as pressure regulator must return to zero, zero light, meter back to zero indicating also be removed after testing the connecting wire.
Six calibration
Six point one Output voltage:
connection , Open the power switch, the test of time" T-- "Set Zero That will boost" A-- "Set manually" Off ". The setting is finished, click "start" button, then rotate the "set" button. This test shows that the voltage at the voltage value. The voltage value from the" Zero ~ 5kV ".
Six point two The leakage current and the current alarm
connection , Open the power switch, the test of time" T-- "Set Zero That will boost" A-- "Set manually" Off ". The setting is finished, click "start" button, then rotate the "set" button. This "leakage current" at the current value. From the current value" Zero ~ 100mA ".
Seven Complete
ZHZ8B A type of pressure tester
A test bar
Use a manual
Product certificate
Eight Other
Eight point one The instrument should keep the temperature in the room Zero C ~ Forty C, relative humidity of not more than Eighty %, and in the air does not contain harmful substances to cause corrosion.
Eight point two Since the date of purchase instrument users Twelve Within a month, when users use fully comply with the rules in the specification, and the user does not attempt to change the instrument internal structure, it is found that the instrument can not work normally, the factory responsible for free to replace or repair.
Eight point three Factory has the right to make changes without notice of the instrument.
L EFUP
Poisonous and harmful substances or elements contained in the instrument is not used in the normal conditions, leakage or mutation, users use the instrument will not cause serious pollution to the environment or causing serious damage to the person and property of the period Ten Year. The poisonous and harmful substances or elements of the name and content identification.
A body of XXX, XXX
Shell plating XXX X Eighty
LCD screen X Eighty X Eighty
Circuit board X XXX, eighty
Contactor X XXX, eighty
Transformer ( Pressure regulator X) XXX, eighty
switch X XXX, eighty
Ten: the concentration of the hazardous substance in all homogeneous materials in the parts are in SJ/T11363-2006 Standard gauge The limits for the following.
X Said: this hazardous substance contained in at least one of the homogeneous materials. SJ/T11363-2006 Limit standard requirements.