Omega Products D1000 User Manual

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 Complete Sensor

To RS-232C or RS-485 Interface

 Input Modules for

Thermocouples, RTDs, Voltages, Currents, Pulse and Frequency, and Bridge Inputs

 Isolated Inputs  RS-485 Format Permits

Remote Communications Up to Four Thousand Feet

 D2000 Series Provide

Linearization of Non-Standard Sensors

 Connect Up To 32

Modules On One Cable, Up to 124 Using a Repeater

 Alarm Outputs Standard  Continuous Self

Calibration, No Adjustment Requirements

The D1000 and D2000 Series digital transmitters are a complete family of easy to use interface modules for personal computers and other processor based equipment with standard serial I/O ports. The modules convert analog input signals to engineering units and transmit, in ASCII format, to any host computer with a standard RS-232C or RS-485 port. This modular design enables anyone familiar with a personal computer to construct a flexible and cost effective data acquisition system. These modules can measure

temperature, pressure, flow, voltages, currents and various types of digital signals. The D1000 series provide direct interface to a wide variety of sensors and perform all signal conditioning, scaling, linearization and conversion to engineering units. Each module also provides digital I/O lines for controlling devices through solid state relays or TTL signals. These digital I/O lines along with integral limit setting capability provide alarm and control outputs. With the exception of the D1400 RTD and D1500 bridge modules, every D1000 module contains an on-board event counter. The event counter will count up to ten million transitions on the digital input line. All user selectable options

(address, baud rate, alarms, etc.) are done through the communications port and stored in nonvolatile memory thereby eliminating switches or external adjustments of any kind.

The flexibility of this system allows users to mix and match the modules to fit their exact requirements. As many as 124 modules can be connected on one 4 wire cable. They can be placed remote from the host computer and from each other.

The D2000 series of userprogrammable data acquisition and control modules allow direct interface of non-linear analog sensors to computers with serial I/O ports.

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D1000 and D2000 OMEGABUS

Digital Transmitters

250

Basic Unit

Use of these modules enables downloading up to 23 breakpoints through the communications port. With these breakpoints the user can program a module to virtually any transfer function.

The ability to provide an arbitrary user programmable nonlinear transfer function is the most powerful feature of the D2000 series. Use this feature to linearize non-standard sensors or to provide outputs in engineering units, which are nonlinear to the input. The D2000 series can be programmed to approximate square law, root, log, high-order polynominal or any other non-linear function.

The D2000 may also be empirically field-programmed when the exact transfer function is unknown.

If transmitting long distances is required, selection of the RS-485 communications format is encouraged. This permits remote operation of up to four thousand feet from the host computer. For computers which do not include a RS-485 port, OMEGA offers the A1000 RS-232C signal converter.

The modules are also capable of operating in a multidrop fashion supporting up to 32 units one one cable set. The A1000 may also be used as a repeater to allow as many

as 124 modules to be joined together. A utility software package (for IBM PC or compatibles) is also available. This software eliminates the need for programming skills to easily communicate with the modules. This software package is available upon request at no charge. Request model D1000-SW, for D1000, D2000, D3000 and D4000 models. (One per order).

All modules are supplied with screw terminal plug connectors and captive mounting hardware. Their encapsulated design allows for mounting in virtually any location including explosion proof housings and DIN rails.

A/OUT

SERIAL I/O

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D1000 and D2000 Modules are Easily Arranged in Multidrop Fashion for Multiple Inputs

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Common Specifications

ANALOG

 Single channel analog input  Analog Input isolation to 500 VRMS  15-bit measurement resolution  2 samples/sec throughout  Autozero & autocalibration

DIGITAL

 8-bit CMOS microcomputer

COMMUNICATIONS

 RS-232C, RS-485  Up to 124 multidrop modules per

communications port

 ASCII Format command/

response protocol

 Can be used with ‘dumb’ terminal  Parity options: odd, even, none  All communications setups

stored in memory

 Checksum can be added to any

command or response

 User selectable channel address  Selectable baud rates: 300, 600,

1200, 2400, 4800, 9600, 19.2 K,

38.4 K

Power Requirements: +10 V to +30 Vdc, 0.75 W max.

Case: ABS with captive mounting hardware

Connectors: Screw terminal plug (supplied)

TEMPERATURE RANGE Operating: -25 to +70°C Storage: -25 to 85°C Relative Humidity: 0 to 95%

noncondensing

Specifications for Specific Modules

D1100/D2100 VOLTAGE INPUT MODULES

Voltage Ranges: ±10 mV, ±100

mV, ±1 V, ±5 V, ±10 Vdc, ±100 Vdc

Resolution: 0.01% of FS (4 digits) Accuracy: ±0.02% of FS max. Zero Drift: ±1 count max. (auto zero) Span Tempco: ±50ppm/°C max. Input Burnout Protection: 250 V ac Input Impedance: 1 MΩ min (> ±5

V input), 100MΩ min (< ± 1V input).

1 Digital Input/Event Counter, 2 Digital Outputs

D1200/D2200 Current Input Modules

Current Ranges: ±1 mA, ±10 mA

±100 mA, ±1A, 4 to 20 mA dc

Resolution: 0.01% of FS (4 digits),

0.04% of FS (4-20 mA) Accuracy: ±0.02% of FS, 0.04% of

FS (4-20 mA)

Zero Drift: ±1 count max. (autozero) Span Tempco: ±80 ppm/°C max. Voltage Drop: ±0.1 V max. 1 Digital Input/Event Counter,

2 Digital Outputs

D1300 THERMOCOUPLE INPUT MODULES

 Open thermocouple indication  Input burnout protection to 250

Vac

 User selectable °C or °F  Overrange indication  Automatic cold junction

compensation and linearization

Thermocouple Types: J, K, T, E, R, S, B, C

RANGES: J = -200 to 760°C; K = -150 to 1250°C; T = -200 to 400°C; E = -100 to 1000°C; B = 0 to 1820°C; S = 0 to 1750°C; R = 0 to 1750°C; C = 0 to 2315°C

Resolution: ±1.0° Overall Accuracy From 0 to +40°C

Ambient: ±1.0°C max. (J, K, T, E),

±2.5°C max. (R, S, B, C)

Input Impedance: 100 MΩ min. Lead Resistance Effect: <20µ V

per 350Ω

2 Digital Inputs, Event Counter, 3 Digital Outputs

D1400 RTD INPUT MODULE

 Input protection to 120 Vac  Automatic linearization and lead

compensation

 User selectable °C or °F

RTD Types: ␣ = .00385, .00392, 100 Ω @ 0°C

Ranges: .00385 = -200 to 850°C; .00392 = -200 to 600°C

Resolution: 0.1° Accuracy: ±0.3°C Input Connections: 2, 3,or 4 wire

Excitation Current: 0.25 mA Lead resistance effect: 3 wire

–2.5°C per Ω of unbalance; 4 wire – negligible

Max. Lead Resistance: 50Ω 1 Digital Output

Shown in Multidrop Fashion

D1500 Bridge Input Modules are ideally suited for most load cells. See OMEGA’s Pressure, Strain and Force Handbook for a complete line of load cells.

Input Modules

For Virtually Any Process Monitoring Application

SERIAL I/O

A/OUT

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D1450 THERMISTOR INPUT Range: 0 to 100°C

Thermistor type: 2252Ω Accuracy: ±0.2°C Resolution: 0.01°C/°F Input Protection: 30 Vdc

1 Digital Input/Event Counter, 2 Digital Outputs

D1500/2500 BRIDGE INPUT MODULE Range: ±30, ±100 mV, 1 to 6 Vdc Accuracy: ±0.05% of FS max. Resolution: 10 µv (mV spans),

0.02% FS (V span) Common Mode Rejection: 100 dB

at 50/60 Hz

Input Protection: 30 Vdc Excitation Voltage: 10 V, 5 Vdc 1 Digital Output

D1600/D2600 TIMER AND FREQUENCY INPUT MODULES

The D1600 module has two modes: frequency input with output data in hertz, or timer input with output data in seconds.

Input impedance: 1 MΩ Switching Level: selectable 0 V,

+2.5 V Hysteresis: adjustable 10 mV to

1.0 V

Input Protection: 250 Vac 1 Digital Input/Event Counters FREQUENCY INPUT Range: 1 Hz to 20 kHz Accuracy: ±0.01% of reading,

±0.01 Hz Resolution: 0.005% of reading,

+0.01 Hz

Resolution: 0.01% (4 digits) Tempco: ±20 ppm/°C

TIMER INPUT Range: 100 µs to 30 s Resolution: 0.005% of reading +10 µs Accuracy: ±0.01% of reading ±10 µs EVENT COUNTER Input Bandwidth: 60 Hz,

(optional 20 KHz max.) Up to 10 million positive transitions

D1700 DIGITAL INPUTS/OUTPUTS MODULE

D1711, D1712: 15 digital

input/output bits User can define any bit as an input

or an output Input Voltage Levels: 0 to 30 V

without damage Input Switching Levels: High, 3.5

V min., Low, 1.0 V max. Outputs: open collector to 30 V,

100 mA max. load

Vsat: 1.0 V max. @ 100 mA

Digital Inputs/Outputs

RS-232 RS-485 Output Output Price Description

D1701 D1702 $275 7 Digital in,

8 digital out

D1711 D1712 275 15 Digital

in/out

Frequency, Time and Event Inputs

RS-232 RS-485 Output Output Price Description

D1601 D1602 $250 Frequency

input

D1611 D1612 250 Timer input D1621 D1622 200 Event counter

Current Inputs

RS-232C RS-485 Output Output Price Input

D1211 D1212 $250 10 mA D1221 D1222 250 1 mA D1231 D1232 250 100 mA D1241 D1242 250 1 A D1251 D1252 250 4 to 20 mA

Thermocouple Inputs

RS-232C RS-485 Output Output Price Input

D1311 D1312 $325 J D1321 D1322 325 K D1331 D1332 325 T D1341 D1342 325 E D1351 D1352 325 R D1361 D1362 325 S D1371 D1372 325 B D1381 D1382 325 C

RTD Inputs

RS-232C RS-485 Output Output Price Input Curve

D1411 D1412 $325 0.00385 D1421 D1422 325 0.00392

Thermistor Inputs

RS-232C RS-485 Output Output Price Description

D1451 D1452 $250 2252 ohm

thermistor

Bridge Inputs

RS-232C RS-485 Output Output Price Input Excitation

D1511 D1512 $325 30 mV 5 V D1521 D1522 325 30 mV 10 V D1531 D1532 325 100 mV 5 V D1541 D1542 325 100 mV 10 V D1561 D1562 325 1 to 6 V 10 V

D1701, D1702: 7 DIGITAL INPUTS AND 8 DIGITAL OUTPUTS

Input Voltage Levels: ±30 V

without damage Input Switching Levels: high,

3.5 V min., low, 1.0 V max.

Outputs: open collector to 30 V, 30 mA max. load

Vsat: 0.2 V max. @ 30 mA Internal pull up resistors for direct

switch input Inputs/Outputs are read/set in parallel

Voltage, current and bridge input modules are readily interfaced to most pressure transducers. See OMEGA’s Pressure, Strain and Force Handbook for a complete line of pressure transducers.

Voltage Inputs

RS-232C RS-485 Output Output Price Input

D1101 D1102 $250 10 mV D1111 D1112 250 100 mV D1121 D1122 250 1 V D1131 D1132 250 5 V D1141 D1142 250 10 V D1151 D1152 250 100 V

Ordering Example: D1311 type J thermocouple input RS-232C output digital transmitter and OMEGACARESM1-year extended warranty for D1311 (adds 1 year to standard 1-year warranty),

$325 + 33 = $358

Omega Products D1000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual