Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613666033393 | ||
| +8613666033393 | |||
| 13666033393 | |||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China |
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 3500/77M-03-00 (Part Number 176449-07) |
| Channels | 4 channels |
| Input Signal | Bently Nevada approved pressure transducers (positive voltage, psia) |
| Frequency Response | 0 to 5.5 kHz |
| Measured Variables | Discharge Pressure, Suction Pressure, Maximum Pressure, Minimum Pressure, Compression Ratio, Peak Rod Compression, Peak Rod Tension, Degree of Rod Reversal |
| Pressure Accuracy (at 25°C) | ± 0.5% of transducer full-scale (0.5 to 10.0 Vdc) |
| Pressure Accuracy (–30°C to +65°C) | ± 1.0% of transducer full-scale |
| Scale Factor (Examples) | 95,000 mV/psi (100 psia), 38,000 mV/psi (250 psia), 19,000 mV/psi (500 psia), 9,500 mV/psi (1000 psia), 3,800 mV/psi (2500 psia), 1,900 mV/psi (5000 psia), 950 mV/psi (10,000 psia) |
| Signal Input Impedance | 50 kΩ |
| Power Consumption | 7.8 Watts (with full load transducers) |
| Transducer Power Supply | +23.0 Vdc ±0.8 Vdc, 24.5 mA current-limited per channel |
| Output Impedance | 550 Ω |
| Buffered Transducer Outputs | 1 coaxial connector per channel (short-circuit protected) |
| Operating Temperature | -30°C to +65°C (-22°F to +150°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 95% RH non-condensing |
| Dimensions (Monitor Module) | 241.3 x 24.4 x 241.8 mm |
| Weight (Monitor Module) | 0.91 kg |
| Dimensions (I/O Module) | 241.3 x 24.4 x 99.1 mm |
| Weight (I/O Module) | 0.20 kg |
| Rack Space Requirements | 1 full-height front slot (monitor), 1 full-height rear slot (I/O module) |
FAQ
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the 3500/77M Recip Cylinder Pressure Monitor?
A1: The monitor continuously evaluates cylinder pressure in reciprocating compressors to provide machinery protection and essential diagnostic data by comparing measured parameters to user-configured alarm setpoints.
Q2: How many channels does the 3500/77M module support?
A2: The module supports up to 4 channels, each capable of processing input from approved pressure transducers.
Q3: Which pressure measurements does each channel provide?
A3: Each channel can output Discharge Pressure, Suction Pressure, Maximum Pressure, Minimum Pressure, and Compression Ratio. Additionally, derived values such as Peak Rod Compression, Peak Rod Tension, and Degree of Rod Reversal are computed.
Q4: What kind of transducers are compatible with this monitor?
A4: Only Bently Nevada approved third-party positive voltage pressure transducers are compatible.
Q5: What is the pressure measurement accuracy of the monitor?
A5: At 25°C, the accuracy is within ±0.5% of the full-range transducer voltage; over a –30°C to +65°C range, it is within ±1.0%.
Q6: Does the monitor provide real-time transducer output access?
A6: Yes, it includes buffered transducer outputs through front-panel coaxial connectors that are short-circuit protected.
Q7: Can this monitor be used in hazardous environments?
A7: Yes, it is certified for use in hazardous areas with approvals such as ATEX, IECEx, cNRTLus, and meets Class I Division 2 and Zone 2 requirements.
Q8: What are the power supply requirements for the transducers?
A8: Each channel supplies +23.0 Vdc ±0.8 Vdc with current limiting at 24.5 mA.
Tags
Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
