Emerson

Emerson A6312/06 CSI 6500 Dual Channel Speed/ Key Monitor

SKU A6312/06

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Emerson

  • Product No.: A6312/06

  • Country of origin:United States

  • Product Type: Speed Key Module

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 450g

  • Dimensions: 30.1 mm x 128.4 mm x 160.0 mm (W x H x D)

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The Emerson A6312/06 is a Dual Channel Speed/ Key Monitor designed for measuring and conditioning shaft speeds, rotation direction, speed difference, and rotational reference marks (key-pulses) in rotating machinery. Constructed around a high-performance microprocessor, the module processes signals received from two eddy current measuring chains or hall-effect sensors (such as PR 9376). It interfaces via a 48-pin DIN 41612 (design F 48 M) backplane connector and includes front-panel SMB signal taps alongside a mini-DIN (TM 0508A/6) connector for RS 232 configuration, plus a rear-bus RS 485 interface for system integration. The module operates using two independent, galvanically isolated 0...20 mA or 4...20 mA current outputs and opto-decoupled collector/emitter function outputs, supporting machine monitoring setups within the CSI 6500 / A6000 architecture.

Features

  • Dual-channel speed, key-pulse, phase relation, rotational direction, and speed difference measurements
  • Uncoupled signal inputs compatible with eddy current systems and hall-effect sensors
  • Galvanically isolated, configurable 0...20 mA or 4...20 mA analog current outputs with 16-bit resolution
  • Opto-decoupled collector/emitter function outputs for limit alarms and channel clear status
  • Onboard RS 485 bus communication interface with selectable jumper termination
  • Front-panel SMB signal sockets and RS 232 Mini-DIN configuration port
  • Redundant +24 V DC power supply inputs with galvanic separation

Applications

  • Turbine shaft speed and key-pulse monitoring
  • Compressor speed and rotation direction detection
  • Industrial fan and gearbox shaft speed difference calculations

Technical Specifications

Parameter Specification
Manufacturer Emerson Process Management
Model A6312/06 (A 6312/06)
Input Nominal Range 0 ... 27.3 V DC
Input Limit Range 0 ... 30 V DC
Input Resistance > 100 kΩ
Sensor Signal Outputs (Front SMB) 0 ... 4.1 V; signal = 0.15 x sensor input signal
Sensor Output Precision ±1 % of f.s.d.
Frequency Range 0 ... 16 kHz (-3 dB) ±20 %
TTL Pulse Outputs 0 ... 5 V pp, 0 ... 20 kHz
Key Pulse Outputs Max. +24 V at UC, +48 V DC at collector; Max. current C-E: 100 mA
Pulse Duration 1 ms ±20 % (tooth synchronous in speed mode)
Max. Speed Limit 65535 rpm with 18 teeth (limited by 20 kHz max. signal frequency)
Max. Number of Teeth 255
Current Outputs (I1, I2) 0 ... 20 mA or 4 ... 20 mA (galvanically isolated)
Current Output Resolution / Accuracy 16 bit / ±1 % of f.s.d.
Current Output Load 500 Ω
Binary Inputs Signal Level LOW: 0 ... +3 V, HIGH: +13 ... +48 V
Alarm Reaction Time Average 2 ms
Function Output Rating C-E off: max. 48 V; C-E conducting: max. 100 mA
Communication Interfaces RS 232 (front Mini-DIN), RS 485 (rear bus pins d4, z4)
Supply Voltage Inputs Redundant +24 V DC (19 ... 31.2 V DC range)
Power Consumption Max. 6 W (max. 250 mA at 24 V)
Sensor Supply Voltage 26.75 V DC ±2 %; Max. current 35 mA
Operating Temperature (Nominal) 0 ... +45 Celsius (CSA requirement)
Operating Temperature (Max.) -10 ... +65 Celsius
Storage Temperature -30 ... +85 Celsius
Relative Humidity ≤ 95 % non-condensing
Enclosure Protection Class IP 00 open design
PCB Format Euro format (100 mm x 160 mm)
Width 6HP (approx. 30 mm)
Connector Type DIN 41612, design F 48 M
Weight Approx. 320 g (without packaging) / Approx. 450 g (with standard packaging)

Connections/Interfaces

Connector Pin Function
z2 UB+ (+24V, redundant supply input)
b2 U- (0V/Common supply)
d2 UN+ (+24V supply input)
z4 B (RS 485 bus line)
b4 GND (BP, Common, RS 485)
d4 A (RS 485 bus line)
z6 Supply1+ (sensor supply channel 1)
b6 Supply1- (sensor supply channel 1)
d6 Supply2+ (sensor supply channel 2)
z8 AIN1- (Input channel 1, SENS1-A-)
b8 Supply2- (sensor supply channel 2)
d8 AIN2- (Input channel 2, SENS2-A-)
z10 AIN1+ (Input channel 1, SENS1-B+)
b10 GND (Common)
d10 AIN2+ (Input channel 2, SENS2-B+)
z12 Test1 (internal test value activation channel 1)
b12 GND
d12 PU1 (24V pull-up pulse1)
z14 Pulse1-TTL (processed pulse output 1)
b14 Pulse1-E (emitter pulse 1)
d14 Pulse1-C (collector pulse 1)
z16 Pulse2-TTL (processed pulse output 2)
b16 Pulse2-E (emitter pulse 2)
d16 Pulse2-C (collector pulse 2)
z18 I1+ (current output CH1)
b18 I1- (current output CH1 common)
d18 PU2 (24V pull-up pulse2)
z20 I2+ (current output CH2)
b20 I2- (current output CH2 common)
d20 Reset peak value 1
z22 ES (external lock input)
b22 GND
d22 Test2 (internal test value activation channel 2)
z24 SC-D (operating principle GW1 / Out 2-1 inversion)
b24 GND
d24 SC-A (operating principle GW2 / Out 1-1 inversion)
z26 CC1-C (channel clear 1 collector)
b26 GW1-A-C (alert 1 collector / Out 1-2 collector)
d26 GW1-D-C (danger 1 collector / Out 1-1 collector)
z28 CC1-E (channel clear 1 emitter)
b28 GW1-A-E (alert 1 emitter / Out 1-2 emitter)
d28 GW1-D-E (danger 1 emitter / Out 1-1 emitter)
z30 CC2-C (channel clear 2 collector)
b30 GW2-A-C (alert 2 collector / Out 2-2 collector)
d30 GW2-D-C (danger 2 collector / Out 2-1 collector)
z32 CC2-E (channel clear 2 emitter)
b32 GW2-A-E (alert 2 emitter / Out 2-2 emitter)
d32 GW2-D-E (danger 2 emitter / Out 2-1 emitter)

Installation Guidelines

  • Mount the module into a prepared 3U slot of a 19-inch rack or Intermas-compatible enclosure featuring a DIN 41612 design F 48 M plug connector.
  • Verify slot wiring and pin allocation before inserting the card.
  • Press the card gently into the connector and hand-tighten the two front-panel anchoring screws.
  • Maintain a minimum ventilation space of 1 RU (1.75 inches) in all directions around the rack; use cooling fan racks if ambient cabinet temperatures exceed 45 Celsius.
  • Set the internal controller board jumpers (1-2, 3-4, 5-6) to enable the 120 Ω RS 485 bus line termination and pull-up/pull-down references on the first and last network devices.
  • Ensure a permanently installed system power disconnect device (switch or circuit breaker) compliant with IEC 60947-1/3 is accessible within the cabinet.

Compliance and Certifications

  • CSA Certified (when marked with CSA label)
  • DIN EN 55011 / DIN EN 61326 EMC Standards
  • IEC 61010-1 Category 2 Pollution Degree

FAQ

Which backplane slot connector is required to install the module?

The module requires a 3U slot in a 19-inch rack equipped with a 48-pin DIN 41612 design F 48 M connector.

What is the maximum signal frequency supported by the input channels?

The inputs support a maximum signal frequency of 20 kHz, enabling rotational speed measurements up to 65535 rpm.

How is the RS 485 communication bus terminated on the board?

The RS 485 bus termination is activated by shorting onboard jumpers 1-2, 3-4, and 5-6 on the controller board.

What are the primary power supply input specifications for this card?

The card accepts redundant +24 V DC inputs (19 to 31.2 V DC range) with a maximum power consumption of 6 W.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Emerson A6312/06 CSI 6500 Dual Channel Speed/ Key Monitor

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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, including rapid delivery to Saudi Arabia and UAE.

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 professional technical warranty.

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TECHNICAL SPECIFICATIONS

Color pattern
Green
Country of origin
United States

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