Digital Gage Transmitter GAGE-4000
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The GAGE-4000 is an integrated unit, used for reading of many sensor types, frequency, voltage, current, resistance and digital I/O pins. The unit may also output analog voltage, control I/O pins or PWM signals.

Various types of sensors may be read by the GAGE-4000:
Thermocouples, Pressure transducers, RTD temperature sensors, Force and weight transducers, resistive sensors (Thermistors, LDRs etc.). The unit reads the sensor output, converts it to Engineering units (using an internal user's programmed calibration curve) and transmits the results (in ASCII format) via a standard RS-232 or RS-485 interface line to the host computer.

The GAGE-4000 contains an innovative A/D converter, with an adaptive resolution of up to 20 bits, designed especially for infield measurements. It's low current consumption and the ability to connect up to 128 unit on one communication line, makes the GAGE-4000 a perfect choice for making infield measurements, using battery power only. Its communication line can go to distances of up to 1.2 Km without any performance penalty or up to 20 Km, using relay units.

point   Reading of J,K,R,S,T,B,C thermocouples, and detection of an unconnected sensor.
point  Reading of bridge type sensors with an excitation of ±8V.
point  Isolation of 500V between sensor inputs and digital interface / Power supply.
point  Linearization of sensor reading using a polynomial fit.
point  Zero reading for all analog inputs.
point  Simultaneous sampling of up to 128 units.
point  Cold junction compensation .
point  RS-232 or RS-485 communication.
point  Nonvolatile memory retains setup and sensor calibration.
point  Low current consumption.
point  Power save mode.

GAGE-4000 models

Standard (GAGE 4000)
GageIncludes one Thermocouple input, one RTD or resistance input, One differential (mV) input or two single ended millivolts inputs (configured by software), 3 low-resolution (8 bit) A/D, 3 Digital I/O pins capable of being Input, Output or Open Collector type (one of the I/O pins can be configured as a frequency / event counting input), one PWM (analog) output and ± 5V excitation outputs.

GAGE-4001 Digital I/O
Includes 5 digital I/O pins (Input, Output, Open collector), 3 output pins, 3 Input pins (one of inputs may be configured as a frequency / event counting input), one PWM output and one +5V output for driving dry contact sensors/switches.

GAGE-4002 Special Units Gage
Capable of reading voltages of up to 220V, current of up to 20A, Humidity, pH and other physical parameters. These units are manufactured per request, and a minimum order is required.

GAGE-4003 LCD Display

Display-4001May be connected to any of the above units. Capable of displaying the measured parameters configured for this unit. (up to 4 measurements simultaneously), print messages created by the user and read the status of 4 keyboard keys on the unit.

All units are software programmable via any standard communication software and can be chained using a standard 4-wire telephone line cable.
Any unit may be configured separately to read any of the connected sensors, or all of them together.

Drivers available for LABVIEW, GENNIE, etc.

point   Process control for factories and laboratories.
 Sensor reading in noisy environment.
point  Long time data acquisition, using battery power.
point  Process control and product inspection.
point  Measurement of various physical parameters.
point  Simultaneous measurements in separated locations.
point  Heating / cooling energy control.
point  Multi station control.
point  Remote operation of relays, valves etc.
point  Frequency or event counting.
point  Low volume, low weight, low cost measurements.

Technical Specifications
Reading accuracy of J,K,R,S,T,B,C thermocouples: ± 0.5 deg.C.
point  Excitation Voltage:
± 8V.
point  Isolation between sensor inputs and digital interface / Power supply: 500V.
point  RS-232/RS-485 Transfer Rate: 19,200 bps.
point  Environmental Conditions:
- Temperature Range: -20 to +60 deg.C,
- Relative Humidity: 5 - 95%, non-condensing.
point  Current consumption:
- In normal operation: 35 mA.
- In Power Save mode: 8 mA only.

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