druck- und temperaturmesstechnik testing procedure mh-2 mobile hydraulic testing procedure 1...
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Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mobile HydraulicTesting Procedure
1
Pressure Transmitter MH-2
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mobile Hydraulic Testing Procedure
2
passing fields & sites dirt
hydraulics, engine vibration moisture water holes, rain, cleaning operations
cavitation, micro diesel effects internal stresses pressure peaks, changing loads
shock ground waves
weather conditions, hydraulics temperature
electromagnetic interference EMI
Mobile Hydraulic Conditions
Product is extensively tested for mobile hydraulic
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mobile Hydraulic Testing Procedure
Qualification tests
Load cycles
Shock
Vibration
Temperature
EMC
Ingress Protection
…
3
Verify specifications
80 Mio.
500 g
20 g
- 40 … 125 ºC Tamb
CE - Conformity
IP 67 / IP 69K
…
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mobile Hydraulic Testing Procedure
simulate operating conditions
Pressure Transmitter goes through a sequence of tests
3 sequences of mechanical tests
7 sequences of environmental tests
2 sequences of electrical tests
Market specific tests
4
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mobile Hydraulic Testing Procedure
Market Specific Testing Procedure 80 test objects initial test
functionality test
mechanical tests environmental tests electrical tests
10 test objects 5 test objects 5 test objects 5 test objects 5 test objects 10 test objects 10 test objects 10 test objects 5 test objects 5 test objects 5 test objects 5 test objects
connector accuracy
housing stability
impact resistance
transport / storage
load change test
ice-water testvibration duration
UV resistance
freezing test dry heat testreset
behaviourradiates
fields
connector insertion cycles
functionality test
functionality test
functionality test
humid heatfunctionality
testfunctionality
testfunctionality
testfunctionality
testfunctionality
testovervoltage resistance
functionality test
broad-band
noisefunctionality
testvibration
short time
rapid change of
temperature load dump
torque housing
functionality
test
functionality test
dewing test slow load
dump
torque connector
continuous
shocks
resistance to chemicals
freefall
functionality test
functionality
test
functionality test
functionality
test
single shock high pressure cleaner test
functionality
test
functionality test
salt spray
test
functionality
test
5
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mechanical Tests
Connector accuracy
for connectors with connection thread
Insertion cycles
for mating connectors
Torque housing
(torque < 6 Nm)
Torque connector
(torque < 2,5 Nm)
Housing stability – shear test
Impact resistance
6
Market Specific Tests
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Environmental tests- Temperature tests
Temperature shock test
Dry heat test
Dewing test
Humid heat test
Rapid change of temperature
Freezing test
7
Environmental Tests
transmitter at ice water (0 ºC) into boiling water (100 ºC C) 10 cycles
21 h at 100 ºC
-10 … 60 ºC, 80 … 95 % rel. humidity
500 h at 45 ºC and 85% rel. humidity
90 min at -40 ºC -> 90 min at 100 ºC, 30 cycles
transmitter being sprayed with water at -4 ºC -> cooling down to -5 ºC, duration 22 h, 10 cycles
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Shock and Vibration
Vibration tests
Broad-band noise including temperature superposition
(10 … 2000 Hz, -40 … 85 ºC, 6 g, 32 h, 3 axis)
Vibration short time (20 … 2000 Hz, 20 g, 2 h, 3 axis)
Vibration duration (10 … 300 … 10 Hz, 10g , 150 h, 3 axis)
Shock test
Continuous shock (40 g, 6 ms, 50 times)
Single shock (100 g, 11 ms, 10 times)
Drop test (2 m free fall; 2 times per axis)
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Environmental Tests
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Load cycles
Pressure cycles at nominal pressure
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P [bar]
t [s]
Tamb = 20 ºC, > 8 mio cycles
Tamb = -40 ºC, >1 mio cycles
Tamb = 120 ºC, >1 mio cycles
Environmental Tests
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Ingress protection
IP69K:
High pressure cleaner
Pressure: 150bar, Distance: 10cm, Duration: 10sec
IP67:
Water resistance
(Submerging in 1 m deep water; duration 30 min)
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Environmental Tests
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Resistance
Salt spray test
(Test solution = 5% NaCl, at 35°C, duration = 96h)
Chemical resistance test
(Hydraulic oil; Petrol; Diesel; Brake fluid;
Ethyleneglycol solution (50/50); Phosphatising material)
UV resistance test
(5h of dry phase, 1h of irrigation; 50°C +/- 3°C; Humidity =
10%)
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Environmental Tests
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Mobile Hydraulic Testing Procedure
Noise resistance test (Fields 100V/m 80…1000MHz / 60V/m 1000…2000 MHz)
Overvoltage resistance
(Supply voltage: 48 V; test duration: 10 min)
Reset behavior
(20 supply voltage drops 95 % … 0 % VDDmin)
Load dump
(Voltage impulse: 46.5V and 66.5V; 400 ms; 5 impulses)
Slow load dump
(reduce VDDmax to 0% and then increase again to 100%.
Change speed 0.5V/min; VDDmax = maximal supply
voltage)
Electrical tests
12
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Environmental test sequence
80 test objects
initial test
functionality test
mechanical tests environmental tests electrical tests
10 test objects 5 test objects 5 test objects 5 test objects 5 test objects 10 test objects 10 test objects 10 test objects 5 test objects 5 test objects 5 test objects 5 test objects
connector accuracy
housing stability
impact resistance
transport / storage
load change test
ice-water testvibration duration
UV resistance freezing test dry heat testreset
behaviourradiates fields
connector insertion cycles
functionality test functionality testfunctionality
testhumid heat
functionality test
functionality test
functionality test
functionality test
functionality test
overvoltage resistance
functionality test broad-band
noisefunctionality
testvibration short
time
rapid change of temperature
load dump
torque housing functionality
test
functionality test
dewing test slow load
dump
torque connector
continuous
shocks
resistance to chemicals
freefall
functionality test functionality
test
functionality test
functionality
test
single shock high pressure cleaner test
functionality
test
functionality test
salt spray test
functionality
test
13
Market Specific Testing Procedure
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
ExampleEnvironmental test sequence
14
Initial test Ice water test Functionalitytest
Vibration test
Functionalitytest
Chemical resistance testFunctionalitytest
High pressure cleaner test
Functionalitytest
Market Specific Testing Procedure
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Initial Test
3 h at 125 ºC
48 h at 110 ºC
24 h at -40 ºC
2 h at 20 ºC
15
initial testfunctionality
test
ice-water test
functionality test
vibration short time
functionality test
resistance to chemicals
functionality test
high pressure cleaner testfunctionality
test
Market Specific Testing Procedure
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Ice-Water Test
Temperature shock test
Immersion in ice water (0 ºC) for 5 min
Immersion in boiling water (100 ºC) for 5 min
10 cycles
16
initial testfunctionality
test
ice-water test
functionality test
vibration short time
functionality test
resistance to chemicals
functionality test
high pressure cleaner testfunctionality
test
Market Specific Testing Procedure
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Vibration short time
Frequency range = 20 .. 2000 Hz
Acceleration = 20g
Test duration per axis = 2h
Axes = 3
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initial testfunctionality
test
ice-water test
functionality test
vibration short time
functionality test
resistance to chemicals
functionality test
high pressure cleaner testfunctionality
test
Market Specific Testing Procedure
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
Resistance to Chemicals
hydraulic oil
Fuel
Diesel
brake fluid
…
Test duration: 3 days
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Initial testfunctionality
test
ice-water test
functionality test
vibration short time
functionality test
resistance to chemicals
functionality test
high pressure cleaner testfunctionality
test
Environment Test Example
Druck- und Temperaturmesstechnik
Testing Procedure MH-2
High pressure cleaner test
Spray angle = 0°, 30°, 60°, 90°
Water pressure = 150bar
Water temperature = 60 ºC
Test duration = 10s from all directions
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initial testfunctionality
test
ice-water test
functionality test
vibration short time
functionality test
resistance to chemicals
functionality test
high pressure cleaner testfunctionality
test
Market Specific Testing Procedure