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Bently Nevada 2155/40-02 TDISecure Module
Purchase authentic Bently Nevada 2155/40-02 TDISecure Data Acquisition Modules. Brand New in original factory packaging with Original Stock and Global Shipping.
Description
Configured for multi-channel analog signal acquisition and signal conditioning in machinery monitoring platforms, the Bently Nevada 2155/40-02 (2155/40 Data Acquisition Modules) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2155/40-02 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 3.9 kg (8.6 lb) |
| Dimensions | 384 x 216 x 136 mm (15.12 x 8.50 x 5.36 in) |
| Operating Temp | -30 deg C to +65 deg C (-22 deg F to +149 deg F) |
| Power Consumption | 35 W (20-36 VDC input range) |
| Product Type | Data Acquisition Modules |
| Analog Inputs | 24 differential channels (2 groups of 12) |
| Channel Range Options | 4-20 mA, 1-5 V, 0-5 V, 0-10 V, or 2-10 V per group |
| Input Impedance | 250 ohm (4-20 mA mode), 400 kohm (Voltage mode) |
| Scan Rate | 400 ms across all 24 channels |
| Frequency Response | DC to 240 Hz @ -3 dB |
| Measurement Accuracy | 0.32% FS at 25 deg C (10 V scale), 0.64% FS at 25 deg C (4-20 mA) |
| Storage Temp | -40 deg C to +85 deg C (-40 deg F to +185 deg F) |
| Maximum Humidity | 95%, non-condensing |
Cross-Talk Suppression and Signal Conditioning
The Bently Nevada 2155/40-02 structures its 24 differential analog channels into two separate 12-channel groups, which eliminates ground loop interference and enhances cross-talk suppression during high-density signal conversion. Moreover, the hardware utilizes discrete impedance pathways (250 ohm for current loops and 400 kohm for voltage modes) alongside a low-pass filter (DC to 240 Hz @ -3 dB). Consequently, the unit captures slow-speed dynamic variables and process signals without introducing high-frequency noise or channel degradation across industrial monitoring racks.
Frequently Asked Questions
Q: How does an engineer configure individual input measurement ranges across the 24 channels?
A: Engineers adjust settings by group. Specifically, they configure each 12-channel group to process either 4-20 mA current loops or voltage ranges (1-5 V, 0-5 V, 0-10 V, or 2-10 V).
Q: What power parameters and environmental conditions govern the operation of this module?
A: The module draws up to 35 W from a 20-36 VDC supply. Meanwhile, it operates reliably in Pollution Degree 2 indoor environments up to 2000 meters altitude, spanning temperatures from -30 deg C to +65 deg C.
Field Installation Guidelines
- First, mount the 2155/40-02 unit securely into a suitable panel enclosure while ensuring ambient humidity remains below 95% non-condensing.
- Next, run dedicated power conductors from a 20-36 VDC power source directly to the DC input terminals.
- Afterward, attach field signal wiring to the designated differential pairs, verifying that selected group modes match the connected transmitter signal types.
- Finally, terminate overall signal shielding at a single instrument ground bus to maximize noise rejection and preserve channel isolation.
Additional information
| Weight | 3.90 kg |
|---|---|
| Dimensions | 384 × 216 × 136 mm |
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