The Bently Nevada 177230-00-02-05 provides accurate vibration monitoring for rotating machinery in hazardous areas. This seismic transmitter measures absolute casing vibration. It outputs a 4-20 mA current loop signal proportional to peak velocity. You can connect it directly to PLCs, DCS, or SCADA systems. Additionally, it delivers a dynamic acceleration signal on a separate pin. Furthermore, this version carries multiple global approvals for safe use in explosive environments.
Measurement Range: 0 to 12.7 mm/s (0 to 0.5 in/s) peak, ±10% accuracy
Frequency Response: 3 Hz to 1 kHz (180 to 60,000 cpm) , ±10%
Output Signal Main Loop: 4 ± 0.3 mA = 0.0 mm/s, 20 ± 2 mA = full scale
Output Type: Proportional to peak vibration levels (not RMS)
Sensitivity Dynamic Pin C: Unbuffered acceleration signal referenced to Pin B
The 177230-00-02-05 uses a ceramic shear sensing element. Its mounted resonant frequency exceeds 12 kHz. Moreover, transverse sensitivity stays below 5% of the main sensitivity.
Excitation Voltage: 12 to 30 Vdc , current limited to 40 mA
Settling Time: Less than 15 seconds within 2% of final value
Electrical Isolation: Greater than 10⁸ ohms
Isolation Breakdown Voltage: 600 Vrms with less than 1 mA leakage
This transmitter works with typical PLC and DCS internal power supplies. These supplies usually limit current between 30 mA and 35 mA. Consequently, the 177230-00-02-05 draws power safely without overloading your system.
Pin A: 4-20 mA positive loop (positive with reference to Pin B)
Pin B: 4-20 mA loop return (negative loop return for Pin A and common for dynamic signal)
Pin C: Dynamic acceleration signal (unbuffered, referenced to Pin B)
Diameter: 25.4 mm (1.00 in)
Height: 66.0 mm (2.60 in)
Weight: 0.131 kg (4.62 oz) typical
Case Material: 316L stainless steel
Connector: 3-pin MIL-C-5015, also 316L stainless steel
Mounting Hole in Body: 1/4-28 UNF
Mounting Thread Options: M6 x 1 SI, M8 x 1.25 SI, or 1/4-28 UNF
Mounting Torque: 4 to 7 N-m (35.4 to 62.0 in-lbf)
Operating Temperature: -40°C to +85°C (-40°F to +185°F)
Relative Humidity: To 100% non-submerged
Sensor Seal: Hermetically sealed
Shock Survivability: 9.810 m/s² (1.000 g peak) , maximum drop test
Magnetic Field Sensitivity: Less than 20 μm/s/gauss peak (based on 50 gauss, 50-60 Hz)
The Bently Nevada 177230-00-02-05 withstands extreme conditions. Its 316L stainless steel construction resists corrosion. Moreover, the hermetically sealed sensor prevents moisture ingress.
Approvals: Multiple Approvals - CSA/NRTL/C, ATEX/IECEx
This certification package allows global installation. You can use the 177230-00-02-05 in North American and European hazardous locations. Always check local regulations before installation. The multiple approval option saves you from buying different transmitters for different regions.
Compare this model with the 177230-00-01-CN version. The main differences are:
Frequency response: 3 Hz to 1 kHz (vs 10 Hz to 1 kHz)
Output type: Peak (vs RMS)
Approvals: Multiple international (vs country specific CN)
Therefore, choose the 177230-00-02-05 when you need lower frequency response (down to 3 Hz) and peak output measurement.
First, verify your mounting thread matches one of the three options. Next, apply 4 to 7 N-m of torque during installation. Do not exceed this value. Then, connect the 3-pin MIL connector securely. Ensure Pin A goes to positive loop, Pin B to loop return, and Pin C to your dynamic signal input. Finally, apply 12-30 Vdc excitation. Wait at least 15 seconds for the output to settle within 2% of the final value.
You can install the 177230-00-02-05 on low-speed machinery. For instance, large cooling towers, slow-speed fans, and reciprocating compressors benefit from the 3 Hz lower cutoff. The peak output suits machinery where impact events matter more than average energy. Meanwhile, the dynamic signal on Pin C helps with advanced diagnostics. The multiple approvals allow installation in refineries, chemical plants, and offshore platforms.
177230-00-02-05 seismic transmitter (one unit)
Factory packing with anti-static protection
Quick reference guide (printed)
Note: Warranty and certificates are not included in the package.
We ship all orders via FedEx, UPS, or DHL. The 177230-00-02-05 leaves our warehouse within 24 hours after payment confirmation. Tracking number provided immediately.
1. What is the difference between the 177230-00-02-05 and the 177230-00-01-CN?
The -02-05 version has a 3 Hz to 1 kHz frequency response (peak output) and multiple international approvals. The -00-01-CN has 10 Hz to 1 kHz (RMS output) with China-specific approvals.
2. Can I use this transmitter in a Zone 0 hazardous area?
Check the specific ATEX/IECEx certificate for zone classification. Most installations limit this device to Zone 1 or Zone 2. Contact us for the full certificate.
3. Why does the output use peak instead of RMS?
Peak output responds faster to impact events. It suits machinery with occasional high-amplitude spikes. RMS output better represents overall energy.
4. What happens if the vibration exceeds 12.7 mm/s peak?
The output saturates near 20 mA. The sensor will not suffer damage. However, you will lose measurement accuracy above the full scale range.
5. Is the 12-month factory warranty valid internationally?
Yes, the warranty applies globally. However, we do not include warranty documents in the package. Contact us with your proof of purchase to claim warranty service.
| Brand Name | Bently Nevada |
| Model No. | 177230-00-02-05 |
| Product Type | Seismic Transmitter |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
