1 / 3

Bently Nevada

Bently Nevada 125800-01 3500/25 Keyphasor I/O Module

SKU 125800-01

Disponibile

12-month warranty
Free returns within 30 days

Manufacturer: Bently Nevada
Product No.: 125800-01
Origin United States
Product Type: Keyphasor I/O Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 0.46 kg
Dimensions: 241.3 mm x 24.4 mm x 103.1 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Quantità

Call sales Contact

Product Description

Description

The Bently Nevada 125800-01 is an internal termination Keyphasor I/O module designed for use with the 3500/25 Enhanced Keyphasor Module within a 3500 Machinery Protection System rack. The 125800-01 receives input signals directly from proximity probes or magnetic pickups and delivers phase and speed timing signals to monitor modules across the rack system. Installed in a full-height rear slot, this non-isolated I/O module provides direct internal wiring terminal connections and rear buffered Keyphasor signal outputs for machine diagnostics and TSI monitoring applications.

Features

Direct internal termination connections using Euro-style/screw terminal blocks for transducer field wiring
Dual-channel transducer input handling for proximity probe and magnetic pickup signals
Rear-panel buffered Keyphasor signal outputs via terminal headers
Seamless integration with 3500/25 main half-height cards across legacy and current 3500 system racks

Applications

Machinery protection systems requiring once-per-turn or multi-event timing reference signals
Shaft rotative speed and phase angle (1X vibration amplitude/phase) tracking
Turbine, compressor, and large rotating equipment condition monitoring

Technical Specifications

Parameter Category	Specification Details
Manufacturer	Bently Nevada
Part Number	125800-01
Input Signal Range	+0.8 V to -21.0 V
Input Impedance	21.8 kOhm minimum
Speed/Frequency Signal Range	Input: 1 to 1,200,000 cpm (0.017 to 20 kHz); Output: 1 to 99,999 cpm (0.017 to 1667 Hz)
Frequency Signal Accuracy	0.017 to 100 Hz: +/-1 cpm; 101 to 500 Hz: +/-8 cpm; 501 to 20 kHz: +/-1% of cpm
Transducer Power Supply	-24 Vdc, 40 mA maximum per channel
Buffered Output Impedance	504 Ohm maximum
Slot Requirement	1 full-height rear slot
Operating Temperature	-30 degC to +65 degC (-22 degF to +150 degF)
Storage Temperature	-40 degC to +85 degC (-40 degF to +185 degF)
Relative Humidity	95%, non-condensing
Dimensions (H x W x D)	241.3 mm x 24.4 mm x 103.1 mm (9.50 in x 0.96 in x 4.06 in)
Weight	0.46 kg (1.01 lbs)

Connections/Interfaces

Connector Pin	Function
CH 1 - PWR	Transducer Power (-24 Vdc) Channel 1
CH 1 - COM	Transducer Power Common Channel 1
CH 1 - KPH	Keyphasor Signal Input Channel 1
CH 1 - SHLD	Transducer Cable Shield Channel 1
CH 2 - PWR	Transducer Power (-24 Vdc) Channel 2
CH 2 - COM	Transducer Power Common Channel 2
CH 2 - KPH	Keyphasor Signal Input Channel 2
CH 2 - SHLD	Transducer Cable Shield Channel 2
BUF 1	Buffered Keyphasor Output Channel 1
COM (BUF)	Buffered Keyphasor Common Channel 1
BUF 2	Buffered Keyphasor Output Channel 2
COM (BUF)	Buffered Keyphasor Common Channel 2
SHIELD	System Ground/Shield Connection

Installation Guidelines

Rack Slot Placement: Mount the I/O module in the full-height rear slot directly behind the corresponding 3500/25 main half-height module position.
Wiring & Shielding: Connect transducer field wiring to the internal terminal blocks (PWR, COM, KPH, SHLD). Ensure shield wires are properly landed at the assigned SHLD terminals to prevent signal noise.
External Termination Compatibility: Do not attempt to connect External Termination (ET) blocks or cables to this internal termination module.

Compliance and Certifications

EMC Directives: European Community Directive 2014/30/EU; Standards EN 61000-6-2, EN 61000-6-4
Electrical Safety: European Community Directive 2014/35/EU; Standard EN 61010-1
Hazardous Area (cNRTLus): Class I, Zone 2: AEx/Ex nA nC ic IIC T4 Gc; Class I, Zone 2: AEx/Ex ec nC ic IIC T4 Gc; Class I, Division 2, Groups A, B, C, and D (T4 @ Ta = -20 degC to +65 degC)
Hazardous Area (ATEX/IECEx): Ex nA nC ic IIC T4 Gc; Ex ec nC ic IIC T4 Gc (T4 @ Ta = -20 degC to +65 degC)
Maritime Approvals: DNV GL rules for classification (Ships, offshore units); ABS Rules for Condition of Classification Part 1
Environmental Compliance: RoHS Directive 2011/65/EU; China RoHS SJ/T 11364-2024

Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

FAQ

What is the primary function of the I/O module?

The device accepts signals from proximity probes or magnetic pickups and routes timing signals to 3500/25 monitor modules for shaft speed and phase angle measurements.

Does this module support external termination blocks?

No, external termination blocks cannot be used with internal termination I/O modules.

What physical slot does this module occupy in a 3500 rack?

The module occupies one full-height rear slot located directly behind the 3500/25 main card.

Reviews

125800-01

Stock & lead time on request

Call

1 3