Shanghai Liangui Technology Co., Ltd.
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PAS Acoustic Emission Preamplifier
Product description:
1.PAS AE preamplifier series are wideband models, which can match with most common sensor models and AE acquisition cards for each factory;
2.Three gain gears to choose: 20/40/60dB;
3. Two input ways: single-ended/difference;
4.Two kinds of power supply modes: phantom power supply, the power supply is carried by the signal line; or direct power supply from external power supply;
5.Built-in filter, relevant frequency are divided to four gears ;
6.Be equipped with protection capacity against electric shock and recoverability anti-blocking phenomenon;
7.AST (Automatic sensor test) function, can send out test signal resource to the sensors ( under the condition of phantom power supply);
8. Metal shell, shield electromagnetic interference ,resist shock.
| Technical Specs | |
| Gain | 20/40/60dB |
| Response frequency | 1.3kHz~1.2MHz |
| Noise | <24dB |
Filter | 20kHz-1200kHz, 100kHz-400kHz 20kHz-120kHz 1kHz-40kHz |
| Output range | ±10V(Vpp) |
| Input capacitive reactance | 15pF |
| Working voltage | 24V-32V |
| Impendence | 50Ω |
| Quiescent current | 31 mA |
| Maximum current | 100 mA |
| Working temp. | -20℃~+60℃ |
| Size | 110mm×65mm×37mm |
| Weight | 300 g |
| Protection level | IP65 |
| Shell material | Cast aluminium |
| Connector | BNC |
Note:1. The power supply should be a good match with the output impedance, otherwise it will lead to the gain of the preamplifier to deviate from the nominal gain value, resulting in signal amplitude deviation. 2. If AE board from other manufacturers are selected, a PPS preamplifier power supply is required. 3. Wiring must be correct. The following three wrong operations may lead to damage to the preamplifier: a. The input voltage is 25% higher than the power supply requirement. b. Connect the power supply to the signal input connector. c. The positive and negative terminals of the powersupply are inversely connected |
PAS preamplifier connection diagram:
1.What is the price term?
FOB Guangzhou.
2.What’s the warranty time?
12 months after shipment date
3.What’s the delivery date?
30-45 days after receiving the T/T payment.
4.How to deal with the faulty part if exceeds the warranty time?
Customer can return the faulty parts for our testing and maintaining, all the logistic cost and maintaining fee should be at customer’s cost.
Performance characteristics:
● The PAS preamplifier is a broadband universal type, which can be applied to most common types of sensors and acoustic emission acquisition cards from various manufacturers;
● The pre-amp gain has three options of 20/40/60dB;
● Two signal input methods, single-ended/differential;
● Two power supply modes are available: phantom power supply, which is carried and supplied by the signal line; or direct power supply from an external power supply.
● Built-in filter, the corresponding frequency is divided into 4 gears for selection;
● It has the ability to protect against electric shock and the ability to recover from blocking phenomenon;
● Automatic sensor test (AST) function, which can send out a test signal source to the sensor (in the case of phantom power supply);
● Metal shell, shielding electromagnetic interference, anti-shock.
Basic technical parameters:
Gain: 20/40/60 dB optional
Response frequency: 1.3kHz～1.2MHz
Noise: <24dB (40dB gain input terminal is shorted)
Built-in filter: 20kHz-1200kHz, (20kHz-630kHz at 60dB gain)
100kHz-400kHz
20kHz-120kHz
4 ranges from 1kHz-40kHz
Output range: ±10V (Vpp)
Input capacitive reactance: 15pF
Working voltage: 28V DC (24V-32V)
Rated load: 50Ω
Quiescent current: 35 mA
Maximum output current: 40 mA
Working temperature: -20℃～﹢60℃
Size: 110mm×65mm×37mm
Protection level: IP65
Shell material: cast aluminum
Interface type: 2 BNC (Q9) interfaces, differential BNC interface, power interface
Packaging Shipping:
FAQ:
Q1: What is the price term?
A1: FOB Shanghai /Guangzhou/ Shenzhen
Q2: What are your payment terms?
A2: T/T Bank Transfer, Alibaba Trade Assurance and so on. Normally 50% deposit with PO, 50% balance before shipment.
Q3: How about your specific warranty service?
A3: All our products are provided with a one-year warranty period, after-sales calls are on duty 24 hours a day, and immediate response during work
Q4: Are you a trading company or a factory ?
A4: We are a group company with 5 factories in Shanghai, Jiangsu and Guangdong. Our company has a professional foreign trade sales team and an experienced technical support team. We are an intelligent equipment & automation solution integration service provider.
Q5: Are you checking all your goods before delivery?
A5: Yes,every component of the instruments must be checked strictly before they leave the factory.
If you have any other questions please feel free to contact us.