Why does Kistler 9215A charge amplifier reach the limit during measurement?
The charge amplifier may reach its limit because the force being measured is too high for the selected measuring range. Try selecting a wider measuring range on the charge amplifier. Alternatively, the input stage of the measuring instrument could be defective, requiring the MOS-FET or operational amplifier in the measuring instrument input stage to be exchanged.
What to do if there is no measuring signal at the output of Kistler 9215A Accessories charge amplifier?
If there's no measuring signal, first check the measuring arrangement, including all connections and cables, to ensure they are properly connected. If the connections are correct, the charge amplifier may be defective or not in measurement mode; in this case, proceed according to the instruction manual for the charge amplifier. A defective Low Level Force Sensor can also cause this issue, requiring repair at the factory; proceed according to section 7.2.
How to fix quasistatic measurements not possible (signal affected by strong drift) with Kistler 9215A?
Quasistatic measurement issues with strong drift often stem from poor insulation resistance in the measuring chain. To resolve this, determine the error source in stages. Start by checking the drift with an open or shielded sensor input at the measuring instrument, then repeat the measurement with the cable connected but without the sensor. Also, check the insulation resistance of the sensor and cable using a Kistler insulation tester Type 5493. Cleaning the connectors may also help.
General| Brand | Kistler |
|---|---|
| Model | 9215A |
| Category | Accessories |
| Language | English |
Essential safety information and warnings for handling and operating the product.
Instructions for checking packaging and delivered accessories for damage or missing parts.
Guidelines for proper use, environmental conditions, and handling of the piezoelectric sensor.
Recommendations for reading and keeping the operating instructions for efficient use.
Overview of the applications and main areas where low level force sensors are utilized.
Detailed explanation of the sensor's construction and how piezoelectric crystals work for force measurement.
Information regarding the hermetic sealing of the sensor and degree of protection.
Specific technical characteristics and features of the Type 9215A miniature sensor.
Specific technical characteristics and features of the Type 9217A/A1 rugged industrial sensor.
Crucial points to ensure correct usage and handling of precision force sensors.
Detailed steps and guidelines for the correct mounting of low level force sensors.
Method for introducing force using a cap, ensuring axial force and preventing bending moments.
Method for introducing force via a fixed screw connection, with stringent parallelism requirements.
Using a coupling element to compensate for deviations and reduce parallelism requirements.
Mounting with a diaphragm to include and decouple lateral forces, requiring recalibration.
Explanation of the basic circuitry and wiring principles for the force measuring chain.
Instructions for setting sensitivity and measuring range on the charge amplifier.
Explanation of the charge signal polarity produced by compressive force and its output at the amplifier.
Definition of resolution and how it is determined by signal-to-noise ratio.
Discussion on the limitations of static measurements with piezoelectric sensors and factors causing drift.
Practical advice and best practices for obtaining accurate and reliable measurement results.
Information on when and how to recalibrate the force sensor, and Kistler's recommendation.
Guidelines for performing routine maintenance and checks on the low level force sensor.
A guide to common faults, their causes, and recommended remedies for the measuring system.
Information on cases where the low level force sensor cannot be repaired and the procedure to follow.
Detailed physical dimensions for Type 9215A and Type 9217A/A1 sensors.
Physical dimensions of various accessories like force introducing caps and coupling elements.
List of accessories supplied with each type of low level force sensor.
List of optional accessories available for the low level force sensors.
Definitions of technical terms used in the manual.
Explanation of systematic and random errors affecting measurement accuracy.
Definition and determination of linearity for piezoelectric sensors.
Information on the useful frequency range of piezoelectric sensors and factors influencing it.
Discussion of temperature effects on sensor output, including static and dynamic errors.
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