Oxford Instruments Austin, Inc.

Transcription

1 Installation Data Data Sheet Sheet Oxford Instruments Austin, Inc. Issue 01 / January 2013 / Original Instructions

2 E350 Cryogenic Temperature Monitor Overview Continuous visual update using backlit LCD display Drives a single diode, intended for cryogenic temperature measurement Supports user selection from four pre-defined diode curves Description The E350 Cryogenic Temperature Monitor drives a single diode temperature sensor, and provides a visual display of the temperature on a backlit LCD module. The high resolution measurement sensing circuitry of E350 provides noise rejection to deliver precise, accurate temperature readings. The diode curve is user selectable from four (4) pre-defined curves providing an interface for common diodes. Temperature conversion is provided by a 10µA constant current source using a spline interpolation (piecewise polynomial). E350 Installation 1 1 IEC Power Entry. Universal Power input accepts 110 or 220 VAC at 50 or 260 Hz D-sub 9 Temperature Sensor. Connect temperature sensor according to the following pin out: Pin 1: Shield (GND) Pin 2: No Connect (NC) Pin 3: NC Pin 4: Diode Sensor Positive Pin 5: Diode Sensor Negative Pin 6 Pin 9: NC 2 E350 Back Panel

3 E350 User Interface The E350 provides a continuous display of the temperature measurement on a backlit 16x2 LCD character display. The top line of the display provides an indication of the temperature status. As temperature increases, the bar graph grows from left to right K Lower temperature indication (50.7 K) illustrated by fewer bars on the visual display K In addition, the front panel LED s color gives the user a visual indication of the temperature range as shown below: Red Temperature > 20 K Yellow Temperature between 15 K and 20 K Green Temperature < 15 K

4 The user can select the diode curve which corresponds to the type of the temperature diode sensor connected to the E350. To select a diode curve: 1. Press the MENU button. 2. Scroll through the standard diode options by pressing the UP and DOWN buttons. 3. When the appropriate diode curve has been selected, press MENU again. E350 supports the following four types of standard temperature sensor diodes: Austin Scientific (ASC) Temperature Diode CTI Temperature Diode DT-470 Silicon Diode DT-670 Silicon Diode The user selected diode type is stored to permanent memory to ensure the unit powers up in the same state it was powered down.

5 Technical Specifications The technical specifications for the E350 Temperature Monitor are listed in the table below. E350 Specifications Features Display Temperature Reading of 1 Diode Four Selectable Diode Curves Power 110/220 VAC 50/60 Hz (Universal Input) Connectors IEC Power Input DB9F (Temperature ( Diode Cable) Dimensions (W) x 6.20 (L) x 2.56 (H) Order Information The contact information is listed below: Sales & Marketing Technical Support or Web Information Use the following Table to determine the P/N and optional accessories when placing order with Oxford Instruments Austin, Inc. E Cryogenic Temperature Monitor Configuration Cable Type Single Cryopump or coldhead E350 kit, includes power cable and one 10ft standard single diode cable. For kit with other cable length, see below 15 Ft 20 Ft 50Ft Standard Single Diode Cable Revision History Date Reason Revision July 2008 Initial Release January 2013 Update to new corporate format