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温度监视器(Temperature Monitoring & Control)

Model TM-600 Temperature Monitor

 

Features include:

    CE-Marked.

 •   Monitors resistive temperature sensors such as ruthenium oxide, platinum, and carbon.

    Simple keypad with good tactile response (no membrane switches).

   Flexible computer control via the standard RS-232 interface (IEEE-488.2 available).

   LabVIEW® drivers available at no extra charge.

 

Cryomagnetics’ Model TM-600 Temperature Monitor utilizes the latest technology to provide precision temperature monitoring at a reasonable cost. Many applications require only a precision temperature monitor – not an expensive temperature controller.

 

Many precision temperature sensor types can be monitored. Tested sensors include ruthenium-oxide, platinum, and carbon.

 

The easy to read 2-line vacuum fluorescent display clearly indicates temperature in Kelvin, Celsius, Fahrenheit, or ohms. Convenient temperature autoranging minimizes user intervention. Spline or linear interpolation provides optimal utilization of sensor calibration data.

 

High and low setpoints can be used to warn of temperatures outside a specific range. When the temperature falls outside this range, a control output signal is activated (TTL or open collector). This feature is useful for monitoring temperature of lambda plate operation, cryostat shields, closed-cycle refrigerator systems, sample temperatures, etc.

 

An audible alarm with high and low setpoints is also included. When temperature falls outside a range you set, the alarm becomes active. The audible alarm can be silenced if desired. An annunciator is displayed on the front panel whenever the alarm is active.

 

Resolution is sensor and temperature dependent. For a 100K ohm ruthenium oxide temperature sensor, resolution is 1 millikelvin in the temperature range of 1.5K to 40K. Even with inexpensive 100 ohm platinum sensors, the resolution is 10 millikelvin at 77K.

 

Two temperature sensors can be simultaneously monitored and displayed with the two-sensor option (Option 3). These sensors do not have to be of the same type because of separate current control and feedback circuitry.

 

Standard Features


Bright two line vacuum fluorescent display.

RS-232 computer interface.

Standard curves for platinum, carbon, and ruthenium-oxide temperature sensors.

Capability to store user temperature sensor curves.

Sensor calibration via front panel menu.

Temperature displayed in Kelvin, Celsius, Fahrenheit, or expressed as a resistance (autoranging).

Audible alarm

 

Optional Features


Option 001: 0-1 volt Analog Output (4-20mA current loop available).

Option 002: IEEE-488.2 Computer Interface.

Option 003: Two Sensor Readout with separate High and Low controller setpoints. Both channels can be simultaneously monitored.

Option 004: 19" Rack Mountable Cabinet. Up to (3) TM-600's or any combination of Model LM-500's, Model TM-600's, or Model GM-700's can be mounted side-by-side in one 3.5" high rack.

Option 005: Line Voltage Compatible Controller Output

 


The following specifications reflect the electronic performance of the TM-600 measuring the resistance of an RTD sensor. The accuracy of the measured temperature will be a function of the electronic accuracy, sensor accuracy, sensor calibration data, sensor sensitivity, and accuracy of the selected interpolation algorithm.

 

Technical Specifications


Resolution

24 bit analog to digital converter

Bandwidth

2.62 Hz digital filter

Averaging

0.5 Second

Reference Stability

5 ppm/°C standard, 0.2 ppm/°C optional

Electronic Noise

1 uV RMS

Interpolation/Conversions

Single precision floating point (six digit accuracy)

Current Source(s)

Programmable/Configurable 1uA to 100 mA

Current Source dependent errors

Removed by A/D reference configuration

A/D Input Current

1 nA max

A/D Gain, Drift, and Offset errors

Rem oved by A/D self-calibration

50/60 Hz Rejection

100 dB min

 

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