Myers-Vacuum - GTC-395
The GTC-395 thermocouple vacuum gauge is a microprocessor controlled single station thermocouple type gauge controller housed in a 1/8th DIN case.
The GTC-395 gauge supplies a constant current source to the heating element of the GTC-036 sensor. The thermocouple junction in the sensor generates a voltage signal that varies with the temperature of this heating element. A decrease in pressure reduces the number of gas molecules available to transfer heat away from the heating element, resulting in a temperature rise and an increased output from the sensor. This signal is filtered and amplified, and then sent to an analog to digital converter. The microprocessor reads this signal, does further filtering and uses the result as an index into a lookup table for pressure. This value is written to the display and to a digital to analog converter that generates the analog voltage output. The set points are implemented in software and their values are stored in nonvolatile memory on the microprocessor.
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Features of GTC-395
- Easy to read pressure display * Measures from of 1 m Torr to 3000 m Torr * Two relay output adjustable from the front panel * RS-232 serial interface * Analogue output for remote display/monitoring * Front panel LED’s for relay output status * Panel mountable or beach top use * Uses the rugged and proven GTC-036 senor
General Specifications
There are no General Specifications available.
Additional Specifications
Power Input:
100-120 VAC 50/60 Hz 40 watts or 9-12 VDC 6 watts
Pressures Scales:
1 mTorr to 3,000 mTorr with atmosphere indication of “ATM”
Number of Sensing Stations:
One
Pressure Sensing Tube:
Type GTC-036 with 1/8” pipe thread or 0.406” diameter O-Ring sealing surface.
Tube Cable:
10 ft length standard with both 9-pin gauge and octal sensor connector
Cabinet Dimensions:
3.78” wide 5.1” deep 1.89” high
Mounting Hole Dimensions:
3.64″ wide x 1.75” high (allow 8” for mounting depth)
Relay Connections:
One removable six position terminal block with common, normally closed, normally open
connections for each set point.
Relay Trip Points Adjustments:
Entire range of gauge
Relay Types:
SPDT 5 Amp 250 VAC Max
RS-232:
RX, TX, and COM (9600 Baud)
Analog Output:
0-3 Volt, 1 mV per 1 mTorr (COM and OUT)