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Product short description:
  • 2 or 4 input channels, 0 to 20mA DC, 0 to 10V DC (selectable ranges)
  • 0 to 20mA DC, 0 to 10V DC (selectable ranges) output
  • 10-36V DC power
  • Software configured, computes arithmetic operations, evaluates conditional and Boolean arguments, executes track & hold functions

IntelliPack math modules perform complex mathematical computations and convert DC input signals to scaled DC or frequency outputs. They are ideal for isolating and interfacing analog signals to a PLC or controller as a voltage, current, or a pulsed input.

892M, 894M Math Module with DC Voltage / Current Output Description

IntelliPack math modules perform complex mathematical computations and convert DC input signals to scaled DC or frequency outputs. They are ideal for isolating and interfacing analog signals to a PLC or controller as a voltage, current, or a pulsed input. Typical applications include calculating a sum, delta’s, average, flow rate, volume, weight, power, and other scaled or computed variables.

Math modules are available with either DC voltage/current output or frequency/pulse-width modulated output. Each output (DC, frequency, and relay channels) is controlled by a unique, user defined equation.

The math/computation equations are entered into the IntelliPack configuration software in a free form format, the same as in most popular spreadsheet programs. A simulator screen provides instant feedback to test equations and see the output response before actual installation.

Performance

General

Analog to Digital (A/D) Converter: 16-bit Σ-Δ A/D converter.

Ambient Temperature Effect: Better than ±0.005% of input span per °C or ±1μV, whichever is greater.

Noise Rejection
Normal Mode: 40dB @ 60Hz, 100 ohm unbalance.
Common Mode: 100dB @ 60Hz, .100 ohm unbalance.
(49.9 ohm unbalance for process current inputs).

Response Time (for input step change): 800mS typical to 98% of final output value.

Input Over-voltage Protection: Bipolar Transient Voltage Suppressors (TVS).

DC Current Input

DC Current Input Ranges
Input Ranges          Resolution

0 to 1mA DC                   0.0370%
0 to 20mA DC                0.0025%
4 to 20mA DC                0.0025%

DC Current Input Impedance: 49.9 ohms.

DC Current Input Accuracy
Better than 0.05% of input span, typical.
Better than 0.3% of input span typ. for 0-1mA range.

DC Voltage Input

DC Voltage Input Ranges
Input Ranges          Resolution

0 to 5V DC                      0.0030%
0 to 10V DC                    0.0025%

Input impedance: Greater than 500K ohms.

DC Voltage Input Accuracy: better than ±0.05% of input span, typical.

Output (DC V/mA)

D/A Converter: 16-bit Σ-Δ.

Current Output
Ranges: 0-1mA, 0-20mA, 4-20mA.
Compliance: 10V minimum (500 ohm load).
Accuracy: 0.025% of span (0-1mA: 0.3% of span).

Voltage Output
Ranges: 0-5V, 0-10V.
Compliance: 10mA maximum with short circuit protection. 1 ohm output impedance.
Accuracy: 0.025% of span.

Accuracy (overall input to output)
Better than 0.075% of span, typical.
Better than 0.5% of span for 0-1mA, typical.

Environmental

Ambient Temperature
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).

Relative Humidity: 5 to 95%.

Power Requirements: 10 to 36V DC. 120mA @ 24V. 200mA @ 15V.

Isolation (optical)
3-way (input/output/power).
Input circuits share a common.
1500V AC peak or 250V AC (354V DC) continuous.

Radiated Field Immunity (RFI): EN61000-4-3, EN50082-1.

Electromagnetic Field Immunity (EMI): Less than ±0.25% of output span effect under the influence of electromagnetic fields from switching solenoids, commutator motors, and drill motors.

Electrical Fast Transient (EFT): EN61000-4-4, EN50082-1.

Surge Withstanding Capability (SWC): EN61000-4-5, EN50082-1.

Electrostatic Discharge (ESD): EN61000-4-2, EN50082-1.

Radiated Emissions: EN50081-1 for Class B equipment.

Approvals
UL listed, cUL listed, Hazardous Loc.: Class I; Division 2; Groups A, B, C, D.

Configuration

Software Configuration: Units are fully programmable via the Windows 7 or newer IntelliPack Configuration Program. Configuration downloads from PC through EIA232 serial port using Acromag 800C-SIP kit.

LED Indicators: LEDs indicate power and status.

Physical

Enclosure: Case: Self-extinguishing NYLON type 6.6 polyamide thermoplastic UL94 V-2, color beige; general purpose NEMA Type 1 enclosure.

Connectors (Removable terminal blocks): Wire Range: AWG #14-22 (AWG #12 stranded only).

Printed Circuit Boards: Military grade FR-4 epoxy glass circuit board.

Dimensions
1.05W x 4.68H x 4.35D inches.
26.7W x 118.9H x 110.5D millimeters.

Shipping Weight: 1 pound (0.45 Kg) packed.

  • Universal DC analog I/O ranges provide flexibility for changing application requirements.
  • Individual channel input/output scaling displays signal values in engineering units.
  • Track and hold function enables easy identification of critical events and their corresponding signal values.
  • 200-character equation fields (50-char. max. on 895/896M) support complex transfer functions.
  • Software simulation feature allows off-line testing of equations to quickly check output signal response for a variety of conditions.
  • Diagnostic LEDs provide quick, visual indication of an out-of-range input value.
  • Pulse-width modulation capability allows the user to vary the output signal’s pulse width on a user-defined carrier frequency.
  • Solid-state relays provide on/off control or local alarms with fail-safe/ non fail-safe capability

 

How to Use a Toroidal AC Current Sensor - 8401044
Using Acromag’s Toroidal AC Current Sensor Model 5020-350 Transmitters with DC current input can be used in conjunction with an external toroidal AC current sensor in order to precondition an AC current input signal. This sensor is a highly accurate toroidal instrument transformer; which converts an AC current signal to a safe, low-level, DC milliampere...
How to Calculate a V-notch Weir Discharge Rate Q (GPH) - 8401009
Defining the Need: Calculate the discharge rate Q (g.p.h.) output of a V-notch weir. Provide a 4-20mA output for flowrate and frequency output for totalization and alarm output for high-level alarm. Solution: Model 892M-0500 DC output math module Model 895M-0800 freq. output math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply  ...
How to Scale and Sum up to Four 4-20mA Signals from Flow Sensors - 8401004
Defining the Need: Scaling and summing up to four 4-20mA signals from flow sensors. Solution: Model 894M-0500 quad-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply
How to Monitor RTDs for Temperature Differential - 8401008
Defining the Need: Monitor three RTD’s on a stack and transmit two differential 4-20mA signals representing -7 to 18°F. Each RTD transmitter is calibrated -20 to 120°F. Solution: Model 892M-0500 math module (qty. 3) Model 800C-SIP software interface pkg. (qty. 1) Model PS5R-VD24 power supply (qty. 1)   Download PDF for complete application note.
How to Transmit the Dosing Percentage of an Additive Based on Total Flow of Effluent - 8401006
Defining the Need: Transmitting the dosing percentage (ratio) of an additive based upon total flow of effluent. Solution: Model 892M-0500 dual-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply
How to Take the Square Root and Sum up to Four 4-20mA Signals from Flow Sensors - 8401005
Defining the Need: Taking the square root and summing up to four 4-20mA signals from flow sensors. Solution: Model 894M-0500 quad-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply
How to Convert a 4-20mA Level Signal to a 4-20mA Signal Proportional to Volume - 8401007
Defining the Problem: Convert a 4-20mA level signal (proportional to height) to a 4-20mA signal proportional to volume. Solution: Model 892M-0500 dual-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply     Download PDF for complete application note.

Manuals

892M, 894M User Manual (Log in to download the file)

How to Use SIIG USB-to-Serial Cable With Windows Tech Note (Log in to download the file)

800C-SIP: IntelliPack Configuration Software Information Page (Log in to download the file)
IntelliPack Configuration Software 5030-881 (Log in to download the file)
  • Compare

    5020-350: Toroidal AC Current Sensor

    • AC Current Sensor to precondition an AC current input signal
    • Highly accurate toroidal instrument transformer that converts an AC current signal to a safe, low level, DC milliampere signal (0 to 11.17mA).
    Select options
  • Compare

    800C-SIP: IntelliPack Configuration Software

    • Configuration Software
    • USB-to-RS232 Adapter
    • RS232-to-RJ11 Adapter
    • Interface Cable
    Acromag’s configuration software is the key to the IntelliPack’s easy-to-use operation. The software employs the friendly Windows® interface with pull-down selection menus and fill-in-the-blank fields to speed you through a few brief configuration screens. No programming is required.
    Select options
  • Compare

    PS5R: Slim Line Power Supplies

    • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
    • Universal Input (85-264V AC / 100-370V DC)
    • Lightweight and compact size
     
    Select options

Additional information

Weight 11 oz
Dimensions 5 × 1.25 × 4.5 in
Part Number

892M-0500: two inputs, 892M-0500-C: two inputs with factory calibration, 894M-0500: four inputs, 894M-0500-C: four inputs with factory calibration

Configuration

Windows Software Configuration

Product Series

IntelliPack 800 Series

Power

DC Power, External Power

  • Description

    892M, 894M Math Module with DC Voltage / Current Output Description

    IntelliPack math modules perform complex mathematical computations and convert DC input signals to scaled DC or frequency outputs. They are ideal for isolating and interfacing analog signals to a PLC or controller as a voltage, current, or a pulsed input. Typical applications include calculating a sum, delta’s, average, flow rate, volume, weight, power, and other scaled or computed variables.

    Math modules are available with either DC voltage/current output or frequency/pulse-width modulated output. Each output (DC, frequency, and relay channels) is controlled by a unique, user defined equation.

    The math/computation equations are entered into the IntelliPack configuration software in a free form format, the same as in most popular spreadsheet programs. A simulator screen provides instant feedback to test equations and see the output response before actual installation.

    Performance

    General

    Analog to Digital (A/D) Converter: 16-bit Σ-Δ A/D converter.

    Ambient Temperature Effect: Better than ±0.005% of input span per °C or ±1μV, whichever is greater.

    Noise Rejection
    Normal Mode: 40dB @ 60Hz, 100 ohm unbalance.
    Common Mode: 100dB @ 60Hz, .100 ohm unbalance.
    (49.9 ohm unbalance for process current inputs).

    Response Time (for input step change): 800mS typical to 98% of final output value.

    Input Over-voltage Protection: Bipolar Transient Voltage Suppressors (TVS).

    DC Current Input

    DC Current Input Ranges
    Input Ranges          Resolution

    0 to 1mA DC                   0.0370%
    0 to 20mA DC                0.0025%
    4 to 20mA DC                0.0025%

    DC Current Input Impedance: 49.9 ohms.

    DC Current Input Accuracy
    Better than 0.05% of input span, typical.
    Better than 0.3% of input span typ. for 0-1mA range.

    DC Voltage Input

    DC Voltage Input Ranges
    Input Ranges          Resolution

    0 to 5V DC                      0.0030%
    0 to 10V DC                    0.0025%

    Input impedance: Greater than 500K ohms.

    DC Voltage Input Accuracy: better than ±0.05% of input span, typical.

    Output (DC V/mA)

    D/A Converter: 16-bit Σ-Δ.

    Current Output
    Ranges: 0-1mA, 0-20mA, 4-20mA.
    Compliance: 10V minimum (500 ohm load).
    Accuracy: 0.025% of span (0-1mA: 0.3% of span).

    Voltage Output
    Ranges: 0-5V, 0-10V.
    Compliance: 10mA maximum with short circuit protection. 1 ohm output impedance.
    Accuracy: 0.025% of span.

    Accuracy (overall input to output)
    Better than 0.075% of span, typical.
    Better than 0.5% of span for 0-1mA, typical.

    Environmental

    Ambient Temperature
    Operating: -25 to 70°C (-13 to 158°F).
    Storage: -40 to 85°C (-40 to 185°F).

    Relative Humidity: 5 to 95%.

    Power Requirements: 10 to 36V DC. 120mA @ 24V. 200mA @ 15V.

    Isolation (optical)
    3-way (input/output/power).
    Input circuits share a common.
    1500V AC peak or 250V AC (354V DC) continuous.

    Radiated Field Immunity (RFI): EN61000-4-3, EN50082-1.

    Electromagnetic Field Immunity (EMI): Less than ±0.25% of output span effect under the influence of electromagnetic fields from switching solenoids, commutator motors, and drill motors.

    Electrical Fast Transient (EFT): EN61000-4-4, EN50082-1.

    Surge Withstanding Capability (SWC): EN61000-4-5, EN50082-1.

    Electrostatic Discharge (ESD): EN61000-4-2, EN50082-1.

    Radiated Emissions: EN50081-1 for Class B equipment.

    Approvals
    UL listed, cUL listed, Hazardous Loc.: Class I; Division 2; Groups A, B, C, D.

    Configuration

    Software Configuration: Units are fully programmable via the Windows 7 or newer IntelliPack Configuration Program. Configuration downloads from PC through EIA232 serial port using Acromag 800C-SIP kit.

    LED Indicators: LEDs indicate power and status.

    Physical

    Enclosure: Case: Self-extinguishing NYLON type 6.6 polyamide thermoplastic UL94 V-2, color beige; general purpose NEMA Type 1 enclosure.

    Connectors (Removable terminal blocks): Wire Range: AWG #14-22 (AWG #12 stranded only).

    Printed Circuit Boards: Military grade FR-4 epoxy glass circuit board.

    Dimensions
    1.05W x 4.68H x 4.35D inches.
    26.7W x 118.9H x 110.5D millimeters.

    Shipping Weight: 1 pound (0.45 Kg) packed.

  • Features & Benefits

    • Universal DC analog I/O ranges provide flexibility for changing application requirements.
    • Individual channel input/output scaling displays signal values in engineering units.
    • Track and hold function enables easy identification of critical events and their corresponding signal values.
    • 200-character equation fields (50-char. max. on 895/896M) support complex transfer functions.
    • Software simulation feature allows off-line testing of equations to quickly check output signal response for a variety of conditions.
    • Diagnostic LEDs provide quick, visual indication of an out-of-range input value.
    • Pulse-width modulation capability allows the user to vary the output signal’s pulse width on a user-defined carrier frequency.
    • Solid-state relays provide on/off control or local alarms with fail-safe/ non fail-safe capability

     

  • Tech Papers

    How to Use a Toroidal AC Current Sensor - 8401044
    Using Acromag’s Toroidal AC Current Sensor Model 5020-350 Transmitters with DC current input can be used in conjunction with an external toroidal AC current sensor in order to precondition an AC current input signal. This sensor is a highly accurate toroidal instrument transformer; which converts an AC current signal to a safe, low-level, DC milliampere...
    How to Calculate a V-notch Weir Discharge Rate Q (GPH) - 8401009
    Defining the Need: Calculate the discharge rate Q (g.p.h.) output of a V-notch weir. Provide a 4-20mA output for flowrate and frequency output for totalization and alarm output for high-level alarm. Solution: Model 892M-0500 DC output math module Model 895M-0800 freq. output math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply  ...
    How to Scale and Sum up to Four 4-20mA Signals from Flow Sensors - 8401004
    Defining the Need: Scaling and summing up to four 4-20mA signals from flow sensors. Solution: Model 894M-0500 quad-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply
    How to Monitor RTDs for Temperature Differential - 8401008
    Defining the Need: Monitor three RTD’s on a stack and transmit two differential 4-20mA signals representing -7 to 18°F. Each RTD transmitter is calibrated -20 to 120°F. Solution: Model 892M-0500 math module (qty. 3) Model 800C-SIP software interface pkg. (qty. 1) Model PS5R-VD24 power supply (qty. 1)   Download PDF for complete application note.
    How to Transmit the Dosing Percentage of an Additive Based on Total Flow of Effluent - 8401006
    Defining the Need: Transmitting the dosing percentage (ratio) of an additive based upon total flow of effluent. Solution: Model 892M-0500 dual-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply
    How to Take the Square Root and Sum up to Four 4-20mA Signals from Flow Sensors - 8401005
    Defining the Need: Taking the square root and summing up to four 4-20mA signals from flow sensors. Solution: Model 894M-0500 quad-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply
    How to Convert a 4-20mA Level Signal to a 4-20mA Signal Proportional to Volume - 8401007
    Defining the Problem: Convert a 4-20mA level signal (proportional to height) to a 4-20mA signal proportional to volume. Solution: Model 892M-0500 dual-input math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply     Download PDF for complete application note.
  • Specs & Data Sheets

    Manuals

    892M, 894M User Manual (Log in to download the file)

    How to Use SIIG USB-to-Serial Cable With Windows Tech Note (Log in to download the file)

  • Software

    800C-SIP: IntelliPack Configuration Software Information Page (Log in to download the file)
    IntelliPack Configuration Software 5030-881 (Log in to download the file)
  • Accessories

    • Compare

      5020-350: Toroidal AC Current Sensor

      • AC Current Sensor to precondition an AC current input signal
      • Highly accurate toroidal instrument transformer that converts an AC current signal to a safe, low level, DC milliampere signal (0 to 11.17mA).
      Select options
    • Compare

      800C-SIP: IntelliPack Configuration Software

      • Configuration Software
      • USB-to-RS232 Adapter
      • RS232-to-RJ11 Adapter
      • Interface Cable
      Acromag’s configuration software is the key to the IntelliPack’s easy-to-use operation. The software employs the friendly Windows® interface with pull-down selection menus and fill-in-the-blank fields to speed you through a few brief configuration screens. No programming is required.
      Select options
    • Compare

      PS5R: Slim Line Power Supplies

      • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
      • Universal Input (85-264V AC / 100-370V DC)
      • Lightweight and compact size
       
      Select options
  • Additional information

    Additional information

    Weight 11 oz
    Dimensions 5 × 1.25 × 4.5 in
    Part Number

    892M-0500: two inputs, 892M-0500-C: two inputs with factory calibration, 894M-0500: four inputs, 894M-0500-C: four inputs with factory calibration

    Configuration

    Windows Software Configuration

    Product Series

    IntelliPack 800 Series

    Power

    DC Power, External Power