D1000-Series

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

Ranges for D1000 Modules

Digital Inputs/Outputs RS-232 Output RS485 Output Description D1701 D1702 7 Digital in 8 digital out D1711 D1712 15 Digital in/out

Frequency, Time and Event Inputs RS-232 Output RS485 Output Description D1601 D1602 Frequency input D1611 D1612 Timer input D1621 D1622 Event counter

Thermocouple Inputs RS-232 Output RS485 Output Input D1311 D1312 J thermocouple D1321 D1322 K thermocouple D1331 D1332 T thermocouple D1341 D1342 E thermocouple D1321 D1322 K thermocouple D1351 D1352 R thermocouple D1361 D1362 S thermocouple D1371 D1372 B thermocouple D1381 D1382 C thermocouple

RTD Inputs RS-232 Output RS485 Output Input Curve D1411 D1412 0.00385 D1421 D1422 0.00392 Thermistor Inputs RS-232 Output RS485 Output Description D1451 D1452 2252 ohm thermistor

Current Inputs RS-232 Output RS485 Output Input D1211 D1221 10 mA D1221 D1222 1 mA D1231 D1232 100 mA D1241 D1242 1 A D1251 D1252 4 to 20 mA

Voltage Inputs RS-232 Output RS485 Output Input D1101 D1102 10 mV D1111 D1112 100 mV D1121 D1122 1 V D1131 D1132 5 V D1141 D1142 10 V D1151 D1152 100 V

Bridge Inputs
RS-232 Output	RS485 Output	Description
D1511	D1512	30 mV input, 5V excitation
D1521	D1522	30 mV input, 10V excitation
D1531	D1532	100 mV input, 5V excitation
D1541	D1542	100 mV input, 10V excitation
D1561	D1562	1 to 6V input, 10V excitation

Ranges for D2000 Modules

Bridge Inputs RS-232 Output RS485 Output Description D2511 D2512 30mV input, 5V excitation D2521 D2522 30mV input, 10V excitation D2531 D2532 100mV input, 5V excitation D2541 D2542 100mV input, 10V excitation

Frequency, Time and Event Inputs RS-232 Output RS485 Output Description D2601 D2602 Frequency input D2611 D2612 Timer input D1621 D1622 Event counter

Current Inputs RS-232 Output RS485 Output Input D2211 D2221 10 mA D2221 D2222 1 mA D2231 D2232 100 mA D2241 D2242 1 A D2251 D2252 4 to 20 mA

Voltage Inputs RS-232 Output RS485 Output Input D2111 D2112 100 mV D2121 D2122 1 V D2131 D2132 5 V D2141 D2142 10 V

Software
A utility software package is available at no additional charge for the D1000 and D2000 family of products. This software provides program examples and a simple data logging program. The software may be downloaded from this web site from the "Software" link in the "Related Links" section at the bottom of this page.