ISR*16山岩は* 165 Supplements and Amendments to the MSR 165 User Manual Open the MSR145 user manual on the enclosed CD and read it t through. Then read the supplements set out below. Page references to the MSR145 user manual are depict- ed as follows: “-> page”.
The MSR 165 allows high frequency acceleration measurements at max. 1600 HZ (±15%) or high frequency analogue measurements at max. 1024 Hz to be made. High frequency acceleration measurements are used for shock and vibration measurements. The remaining low frequency measurement parameters are measured at max. 1 Hz and a common measurement rate is automatically used.
Conditional recording of measurement parameters
For high and low frequency measurements, recording conditions can be selected. The measurement parameters are only recorded when the recording condition has been met. The recording conditions are divided into high and low frequency measurements as fol- lows: Note: In the case of shock measurements the recording condition is known as the "Thresh- old" whilst for all other measurements the term “Record limit” is used.
a) Low frequency measurements
When one of the low frequency measurement parameters reaches its recording condition (record limit), the MSR 165 starts to record all of the activated low frequency measurement parameters. It stops recording when the record limit drops below the pre-set value. The alarm limit can be displayed in Viewer (see also ->26).
b) High frequency measurements
When one of the high frequency measurement parameters reaches its recording condi- tion (threshold, record limit), the MSR 165 starts to record all 3 acceleration axes or all 4 analogue inputs. In the case of high frequency measurements the MSR 165 also records the last 32 meas- urement parameters before the threshold value is reached. If the recording condition is no longer fulfilled the MSR 165 still records the next 100 measurement parameters (see figure on next page). IISR*165 (Recording condition) ① Recording condition (threshold) fulfilled: The last 32 measurements are saved. All subsequent measurement values are saved. ② Recording condition (threshold) no longer fulfilled: The next 100 measurement values are saved.
Shock measurements
The MSR165 shock measurement function was specially conceived for the monitoring of transportation conditions. Its power consumption when making shock measurements is lower than when measuring vibrations. In addition to registering shocks, temperature, humidity and ambient pressure can also be recorded. ISR*16 Configuring the MSR 165 for shock measurements: The MSR165 can only be configured for shock measurements using the Shock program (msr165_shock). Open the Shock program and click Open assistant. Follow the assistant's on-screen instructions. By entering the recording condition (threshold) you can define which shocks are recorded (max. +/- 15g, Shock program with the assistant open Note: Measurement of the underlying acceleration due to gravity is not taken into consid- eration.
15R*165 5 Vibration measurements The MSR 165 has been specially conceived for recording vibrations together with tempe- rature, humidity and ambient pressure. Configuring the MSR 165 for vibration measurements (->24): • Start Setup. • Change the basic settings and limits to meet your requirements. A typical measure- ment rate for vibration measurements is 1600 Hz. • Transfer the new configuration and the recording start conditions to the MSR 165 by clicking Write basic settings. Note: Measurement of the underlying acceleration due to gravity is not taken into consid- eration. ISR*16
5R*16 5R*16
With the MSR 165 high frequency analogue inputs (0-3V) including attitude, temperature, humidity and ambient pressure can be recorded. Configuring the MSR 165 for high frequency analogue measurements (->24): • Start Setup. • Change the basic settings and limits to meet your requirements. • Transfer the new configuration and the recording start conditions to the MSR 165 by clicking Write basic settings.
Special features for high frequency analogue measurements See also Notes on high frequency measurements.
The information provided by the warning lights on the top panel of the MSR 165 is dis- played on two levels (standard indication and status indication). • The information provided by the standard display appears without pressing any but- tons or setting any particular defaults. • The information provided by the status display appears at the press of a button or optionally every 5 seconds.
Standard display

Status display
Activation of the status indicator: • Manually by briefly pressing the button (see push-button control below) • Automatically every 5 seconds: to do so, activate the Status display.
5R*165
15R*165 (->40) Maximum display rate: 1/sec. Shock measurement: During data recording the measurement parameters from the ac- celeration sensors cannot be displayed via Online (see example). USR*165 Example online display of a shock measurement Online display without recording data The acceleration values are displayed ① Online display during data recording The acceleration values are not displayed ② . The message "Shock mode" ● appears. The measurement values for the low frequency measurements are displayed during data recording (in the example, humidity RH) ④.
Circular buffer mode If circular buffer mode is deactivated and the MSR memory is full, recording will be paused. In order to avoid this, activate circular buffer mode (see ->24 or Shock assistant step 4). Reader ->33 During data recording it is not possible to read measurement parameters from the MSR 165.
Limitations
Shock measurements, vibration measurements and high frequency analogue measure- ments cannot be recorded simultaneously. For simultaneous data recording multiple MSR 165 units should be used.
Problems and how to solve them

Notes on temperature measurements
In addition to pressure, the pressure sensor also records the internal temperature T(p). In addition to humidity the humidity sensor also records the internal temperature T(RH). These internal temperatures are utilised for the temperature compensation of the sensors. 5R*165 MSR Electronics GmbH
Tel.  +41 52 316 25 55 Fax +41 52 316 35 21 info@msr.ch www.msr.ch Switzerland