811T Intelligent Transmitter, DC Voltage/Current Input
- ±100V or 0 to 22mA DC input ranges (AC current with optional sensor)
- 0 to 20mA DC, 0 to 10V DC output
- Mechanical relay alarm (25V @ 5A)
- 10-36V DC power
- Software configured, performs linearization, square root extraction, and optional limit alarm functions
The 811T transmitters isolate and convert sensor inputs to noise-free, proportional DC current or voltage output signals. An optional relay output adds a local limit alarm function.
Acromag's IntelliPack® series is a family of high-performance, multi-function I/O modules. IntelliPacks feature universal input/output ranges and an intelligent microcontroller to provide extreme flexibility and powerful signal conditioning capabilities. This flexibility enables a single IntelliPack to handle a broad range of applications.
As your needs change, you can easily reconfigure the unit for different ranges or functions. Setup is very easy. IntelliPack modules are quickly configured with the user-friendly Windows software program. Field adjustments are simple with the module’s front-panel push-buttons and status LEDs. Once configured, IntelliPacks operate independent of any host computer.
Setup is very easy. IntelliPack modules are quickly configured with the user-friendly Windows software program. Field adjustments are simple with the module’s front-panel push-buttons and status LEDs. Once configured, IntelliPacks operate independent of any host computer.
Analog to Digital Converter (ADC): 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: Better than 40dB @ 60Hz. Common Mode: Better than 100dB @ 60Hz.
Input Response Time (for input step change): Less than 100mS typical to 98% of final output value.
Input Overvoltage Protection: Bipolar Transient Voltage Suppressors (TVS).
DC Current Input
|DC Current Input Range (100% rangeable)|
|0 to 22mA DC||757nA|
|0 to 5mA DC||189nA|
DC Current Input Impedance: 24.9 ohms.
Excitation Supply (for 2-wire instruments): +15V DC at 24mA maximum.
DC Current Input Accuracy: Better than ±0.05% of input span.
DC Voltage Input
|DC Voltage Input Ranges (100% rangeable)|
Input impedance: Greater than 500K ohms.
DC Voltage Input Accuracy: Better than ±0.05% of input span.
AC Current Input
AC Current Input Range (optional): An optional external AC current sensor is required to monitor AC current signals (Model 5020-350).
|AC Current Range||Primary Turns|
|0 to 20A AC||1|
|0 to 10A AC||2|
|0 to 5A AC||4|
|0 to 2A AC||10|
|0 to 1A AC||20|
AC Current Input Accuracy: Better than ±0.05% of input span.
Output (DC V/mA)
D/A Converter: 16-bit Σ−Δ.
Current Output: Ranges: 0-1mA, 0-20mA, 4-20mA. Compliance: 10V minimum (500Ω load). Accuracy: 0.025% of span.
Voltage Output: Ranges: 0-5V, 0-10V. Compliance: 10mA maximum with short circuit protection. 1Ω output impedance. Accuracy: 0.025% of span.
Accuracy (overall input to output): 0.075% of span.
Relay: One SPDT electro-mechanical relay.
Relay Ratings (CSA ratings): 25V DC @ 5A. 120/240V AC @ 5A.
Relay Time Delay: Adjustable alarm delay of up to 25 seconds.
Contact Material: Silver-cadmium oxide (AgCdO).
Expected Mechanical Life: 20 million operations.
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. 110mA @ 24V. 170mA @ 15V.
Isolation (optical): 4-way (input/output/relay/power). 1500V AC for 60 seconds or 250V AC 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 (USA, Canada).
Software Configuration: Units are fully programmable via the Windows XP/Vista/7 IntelliPack Configuration Program. Configuration downloads from PC through EIA232 serial port using Acromag 800C-SIP kit.
Field Configuration: Output, zero/full-scale, relay setpoint and deadband are configurable via push-buttons and a standard calibrator.
LED Indicators: LEDs indicate power, status, calibration, and alarm.
Enclosure: Case: Self-extinguishing NYLON type 6.6 polyamide thermoplastic UL94 V-2 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.
1.05W x 4.68H x 4.35D inches.
26.7W x 118.9H x 110.5D millimeters.
1 pound (0.45 Kg) packed.
Features & Benefits
- High-resolution Sigma-Delta A/D converter delivers high accuracy with low noise.
- Advanced microcontroller provides intelligent signal processing power for linearization,averaging, and square root computations.
- Windows XP/Vista/7 software configuration speeds setup and replacement.
- Multi-purpose inputs and outputs reduce spare stock requirements.
- Relay output option provides local limit alarm capability.