Oxford Instrucments E1000 User manual

Oxford Instruments Austin, Inc.
1340 Airport Commerce Blvd.
Bld. 1 Suite 175
Austin, TX 78741 USA
Sales: 800-611-8871
Support: 800-404-1055
[e-mail]
[e-mail]
www.oxford-instruments.com =
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E1000
Dual Temperature Controller
Users Manual

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Oxford Instruments Austin, Inc. is a wholly-owned subsidiary of Oxford Instruments. For information about
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ow to Contact Oxford Instruments Austin, Inc. Support:
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Copyright (©) 2012 by Oxford Instruments, All rights reserved.

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Contents
ContentsContents
Contents
Overview..................................................................................................................................................................... 1
Description ................................................................................................................................................................. 1
E1000 Installation...................................................................................................................................................... 2
Setpoint Relay Pin-out ......................................................................................................................................... 3
Setpoint Relay Pin-out ......................................................................................................................................... 4
Analog Outputs (0 – 10 V) .................................................................................................................................. 5
E1000 Front Panel..................................................................................................................................................... 6
E1000 User Interface ............................................................................................................................................ 6
Manual/Auto Configuration............................................................................................................................... 6
Diode Curve Selection.......................................................................................................................................... 7
Setpoint Configuration............................................................................................................................................ 8
Example................................................................................................................................................................... 9
Serial Port Interface................................................................................................................................................ 10
Serial Port Cable.................................................................................................................................................. 10
Serial Port Protocol............................................................................................................................................. 10
Serial Port Commands........................................................................................................................................ 11
E1000 Curve Programmer ..................................................................................................................................... 13
Order Information .................................................................................................................................................. 15
Revision istory
Revision istoryRevision istory
Revision istory
Document Number 97-00041-002
Date
DateDate
Date Revision
RevisionRevision
Revision Description of Change
Description of ChangeDescription of Change
Description of Change
December 2012 1.0.2 Update Company name and address
April 2010 1.0.1 Added statement to clarify mode change sequence
March 2010 1.0.0 New Document

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E1000 Dual Channel Cryogenic Temperature
Monitor
Overview
OverviewOverview
Overview
•Continuous visual update of two temperature sensors (channels) using backlit LCD display
•Drives two temperature diodes, intended for cryogenic temperature measurement
•Diode temperature curve selection from four pre-defined curves
•Supports one user-defined, programmable diode curve
•Six programmable setpoint relays (three per sensor/channel)
•Two 0 – 10 V analog outputs for temperature monitoring (one per sensor/channel)
•Provides an RS-232 serial port for a PLC or PC digital interface
•Independent control of two outputs
Description
DescriptionDescription
Description
The E1000 Dual Channel Temperature Monitor drives two diode temperature sensors, and provides a visual
display of the temperature on a backlit LCD module. The intended applications of the E1000 include
controlling two separate cryopumps or cryocoolers simultaneously, by using one diode (channel) for each
coldhead. The E1000 also has the unique capability to control the temperature of a water pump to a user
specified temperature from90 to 130K. While in the Water pump mode, the coldhead power will be
stopped when the water pump reaches the selected off temperature and resume pumping when the upper
temperature is reached. The high resolution measurement sensors provide noise rejection to deliver precise,
accurate temperature readings. The diode curves are user selectable from four (4) pre-defined curves
providing support for common diodes. In addition, a user-programmable curve is available for non-
supported diodes. Temperature conversion is provided by a 10µA constant current source using a spline
interpolation (piecewise polynomial).

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E1000 Installation
E1000 InstallationE1000 Installation
E1000 Installation
1
–
IE
C Power Entry
. Universal Power
input accepts 110 or 220 VAC at 50 or 60
Hz
2 – Setpoint Relays. Dry contacts are
provided to trigger external equipment, or
to provide status to control electronics,
such as a PLC. Three relays are provided
for each temperature channel. The top
row connector is controlled by Channel #1
sensor, and the bottom is controlled by
Channel #2. See the setpoint table for a
detailed pin-out.
3 – D-sub 9 Female: Temperature
Sensors. 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 #1 Positive
Pin 5: Diode Sensor #1 Negative
Pin 6 – 7: NC
Pin 8: Diode Sensor #2 Positive
Pin 9: Diode Sensor #2 Negative
1
2
4
–
D
-
sub 9 Male: RS
-
232 Serial Port.
Provides serial interface to a remote serial
device. The serial port is intended to be
used with a standard “straight through”
serial cable (not NULL Modem).
Pin 1: No Connect (NC)
Pin 2: RS-232 Transmit Out
Pin 3: RS-232 Receive In
Pin 4: NC
Pin 5: GND
Pin 6 – 9: NC
5 – Analog Outputs. Analog outputs are
provided for recorder logging, or as status
to a PLC. The outputs provide 0 – 10 V for
each channel.
Pin 1: Channel #1 Voltage Output
Pin 2: GND
Pin 3: Channel #2 Voltage Output
Pin 4: GND
4
3
5 6
7
8
9

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E1000 Rear Panel cont.
E1000 Rear Panel cont.E1000 Rear Panel cont.
E1000 Rear Panel cont.
6
–
Mode Selection
. 2 miniature slide
switches allow the user to select either
Coldhead or Waterpump mode. In the
coldhead mode, the channel will provide
power to the output at all times and will
operate the relays according to the user
set temperatures. In the Cryopump mode,
power will be supplied at all times to the
coldhead, unless, the manual mode is
selected. To change the Mode of the
E1000, the power switch must be turned
off and back on after changing the
positioni of the switch.
7
–
Compressor Power in.
Input drive
power from the compressor. Requires
special drive cable.
8 – Compressor Power Out. Power out to
drive and additional E1000. The power is
fused at 3 amps.
9 – Coldhead out - Output power to the
coldhead or water pump. Uses standard
cryopump drive cable.

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Setpoint Relay Pin
Setpoint Relay PinSetpoint Relay Pin
Setpoint Relay Pin-
--
-out
outout
out
The table below describes the relay configuration. For each channel, 3 separate dry contacts are provided.
Each dry contact has three connections: Normally Open, Normally Closed, and Common.
Pin
PinPin
Pin-
--
-out
outout
out
(Left to Right)
(Left to Right)(Left to Right)
(Left to Right)
Top Row
Top RowTop Row
Top Row Bottom Row
Bottom RowBottom Row
Bottom Row Relay Position
Relay PositionRelay Position
Relay Position
Pin 1 Normally Open
Pin 2 Common
Pin 3
Channel 1 Low
Relay
Channel 2 Low
Relay Normally Closed
Pin 4 Normally Open
Pin 5 Common
Pin 6
Channel 1 igh
Relay
Channel 2 igh
Relay Normally Closed
Pin 7 Normally Open
Pin 8 Common
Pin 9
Channel 1 Spare
Relay
Channel 2 Spare
Relay Normally Closed
The dual row connector provided on the E1000 requires two male connectors for mating. The
recommended mating connector is Phoenix Contact Part Number 1803646. Note that if only one channel is
utilized, only one Phoenix Contact connector is needed.
Single Row Mating Connector (1803646)

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Analog Outputs (0
Analog Outputs (0 Analog Outputs (0
Analog Outputs (0 –
––
– 10 V)
10 V) 10 V)
10 V)
The E1000 provides an analog output for each channel. A terminal block style plug is required to connect
to the analog outputs. The recommended mating connector is Phoenix Contact Part Number 1803594. The
outputs can provide a maximum output current of 60 mA each. To convert the output voltage to
temperature, use the following formula:
Temperature (Kelvin) = 35 * Analog Output Voltage (in Volts)
Temperature (Kelvin) = 35 * Analog Output Voltage (in Volts)Temperature (Kelvin) = 35 * Analog Output Voltage (in Volts)
Temperature (Kelvin) = 35 * Analog Output Voltage (in Volts)
This formula provides a maximum range of 0 – 350.0 K. The pinout (also shown on the back panel of the
unit) is as follows:
Analog Output Pinout (Pin#1 left
Analog Output Pinout (Pin#1 leftAnalog Output Pinout (Pin#1 left
Analog Output Pinout (Pin#1 left-
--
-most)
most)most)
most)
1
11
1 Channel #1 Analog Output
2
22
2 Ground
3
33
3 Channel #2 Analog Output
4
44
4 Ground

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E1000 Front Panel
E1000 Front PanelE1000 Front Panel
E1000 Front Panel
E1000 User Interface
E1000 User InterfaceE1000 User Interface
E1000 User Interface
The E1000 provides a continuous display of the temperature measurements. The display interface also
provides diode curve selection, and setpoint configuration.
Manual/Auto Configuration
Manual/Auto ConfigurationManual/Auto Configuration
Manual/Auto Configuration
The user can manually control the operation of the coldhead by selecting the C 1 or C 2 switch from the
front panel. Pushing the cold head switch causes the respective cold head to switch off. It the switch is
pushed again the cold head is switched on. The manual mode will override the water pump control mode.
To place the E1000 back into auto mode, use the menu function. Pressing the menu
menumenu
menu button will take the
operator to the Manual/Auto selection on the first press of the button. Pressing the UP
UPUP
UP or DOWN
DOWN DOWN
DOWN keys to
change the mode.

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Austin Scientific (ASC) Temperature
Diode
CTI Temperature Diode
DT-470 Silicon Diode
DT
-
670 Silicon Diode
Diode Curve Selection
Diode Curve SelectionDiode Curve Selection
Diode Curve Selection
The user can select the diode curve which corresponds to the temperature diode sensor connected to the
E1000. To select a diode curve:
1. Press the MENU
MENUMENU
MENU button.
2. Scroll through the standard diode options by pressing the UP
UPUP
UP and DOWN
DOWNDOWN
DOWN buttons.
3. When the appropriate diode curve has been selected, press MENU
MENUMENU
MENU.
E1000 supports the following standard temperature sensor diodes:

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Setpoint Configuration
Setpoint ConfigurationSetpoint Configuration
Setpoint Configuration
The user can individually configure each setpoint relay to a unique temperature. Each channel has 3
setpoints associated with its temperature measurement – LOW, IG , and SPARE. A flow chart is shown to
aid in navigating the menus. In addition, an example is shown at the end of the section. If no buttons are
pressed for roughly 10 seconds, the display times out and returns to the main menu. NOTE: the changes
are stored and take effect if the menu times out. To configure a setpoint:
1. Press the MENU
MENUMENU
MENU button twice. The first relay is “Channel #1 LO
Channel #1 LOChannel #1 LO
Channel #1 LO”. When the temperature is below
this value, the relay is in the “Active” position. The temperature value is modified by pressing U
UU
UP
P P
P
or DOWN
DOWN DOWN
DOWN for each digit. Once the digit has been set, press ENTER
ENTERENTER
ENTER to move to the next digit.
2. Press the MENU
MENU MENU
MENU button to configure “Channel #1 I
Channel #1 IChannel #1 I
Channel #1 I”. When the temperature is above this value,
the relay is in the “Active” position.
3. Press the MENU
MENU MENU
MENU button to configure “Channel #1 SPARE
Channel #1 SPAREChannel #1 SPARE
Channel #1 SPARE”. When the temperature is above this
value, the relay is in the “Active” position.
4. Continue to press the MENU
MENU MENU
MENU button to cycle through the Channel #2 setpoints.

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Example
ExampleExample
Example
The example shown below will configure Channel #2 Low Setpoint Relay to 12 K. Begin by pressing MENU
MENUMENU
MENU
to navigate to the “Select Diode” display shown below.
The first menu is the diode selection
menu. Press MENU button to move to
the “Channel #1 Low Temperature
Setpoint.
Press MENU button to move to the
“Channel #1 High Temperature
Setpoint.
Press MENU button to move to the
“Channel #1 SPARE Temperature
Setpoint.
Press MENU button to move to the
“Channel #2 Low Temperature Setpoint.
Note that the cursor is on the
HUNDREDS digit. Press ENTER to
move to the TENS digit.
The cursor is now on the TENS digit, so
press ENTER again to move to the ONES
digit.
Once the cursor is on the ONES digit,
use the UP / DOWN keys to increment
the value under the desired value of
12K is reached.
After the value has been set, either
press MENU until the Main Display is
reached, or let the display timeout after
10 seconds.
Set SPARE #1
2 7 0 K
Set LO Temp #2
1 5 K
Set HI Temp #1
2 0 K
Set LO Temp #1
1 5 K
Select Diode
ASC Diode
Set LO Temp #2
1 5
Set LO Temp #2
1 5 K
Set LO Temp #2
1 2 K
Press MENU button to move to the
“Channel #2 Low Temperature Setpoint.

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Serial Port Interface
Serial Port InterfaceSerial Port Interface
Serial Port Interface
The E1000 provides a DB9 Male connector for serial port communications. A “straight through” serial
cable, as shown in the diagram below, is necessary for interfacing to the serial port. Only pins 2, 3, and 5
are required.
Serial Port Cable
Serial Port CableSerial Port Cable
Serial Port Cable
Pin Assignment
Pin AssignmentPin Assignment
Pin Assignment
DB9 Female (to E1000)
DB9 Female (to E1000)DB9 Female (to E1000)
DB9 Female (to E1000) DB9 (to Controller)
DB9 (to Controller)DB9 (to Controller)
DB9 (to Controller)
1
11
1 -----------
----------------------
----------- 1
11
1
2
22
2 -----------
----------------------
----------- 2
22
2
3
33
3 --
----
-----------
------------------
--------- 3
33
3
4
44
4 -----------
----------------------
----------- 4
44
4
5
55
5 -----------
----------------------
----------- 5
55
5
6
66
6 -----------
----------------------
----------- 6
66
6
7
77
7 -----------
----------------------
----------- 7
77
7
8
88
8 -----------
----------------------
----------- 8
88
8
9
99
9 -----------
----------------------
----------- 9
99
9
Serial Port Protocol
Serial Port ProtocolSerial Port Protocol
Serial Port Protocol
All commands start with ‘$’, and end with \r\n. The serial port should be configured as shown in the
following table.
Serial Port Settings
Serial Port SettingsSerial Port Settings
Serial Port Settings
Baud Rate
Baud RateBaud Rate
Baud Rate 19,200
Data Bits
Data BitsData Bits
Data Bits 8
Parity
ParityParity
Parity NONE
Stop Bits
Stop BitsStop Bits
Stop Bits 1
Flow Control
Flow ControlFlow Control
Flow Control None

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Serial Port Commands
Serial Port CommandsSerial Port Commands
Serial Port Commands
The following serial port commands are provided:
GetRev
Returns
ReturnsReturns
Returns: Revision $x.x
Example
ExampleExample
Example
SEND
SENDSEND
SEND $GetRev\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $Revision 1.0\r\n
GetTemp(channel) - Returns the current temperature in K for the selected channel.
Channel
ChannelChannel
Channel: 1 or 2
Returns
ReturnsReturns
Returns:$xxx.x or “OOR” if out of range.
Example (Get Channel 2 Temp)
Example (Get Channel 2 Temp)Example (Get Channel 2 Temp)
Example (Get Channel 2 Temp)
SEND
SENDSEND
SEND $GetTemp 2\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $21.6\r\n
GetSetp (channel,relay)
Channel
ChannelChannel
Channel: 0 or 1 (0-> Channel 1, 1-> Channel 2)
Relay
RelayRelay
Relay: 0, 1, or 2. 0->LO, 1-> I, 2->SPARE
Returns
ReturnsReturns
Returns: $xxx (integer)
Example (Get Channel 2 SPARE setpoint)
Example (Get Channel 2 SPARE setpoint)Example (Get Channel 2 SPARE setpoint)
Example (Get Channel 2 SPARE setpoint)
SEND
SENDSEND
SEND $GetSetp 1,2\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $280\r\n
SetSetp(channel,relay,temp)
Channel
ChannelChannel
Channel: 0 or 1 (0-> Channel 1, 1-> Channel 2)
R
RR
Relay
elayelay
elay: 0, 1, or 2. 0->LO, 1-> I, 2->SPARE
Temp
TempTemp
Temp: xxx (integer, no decimal point)
Returns
ReturnsReturns
Returns: $xxx\r\n (returns the new value stored)
Example (Set Channel 1 LOW setpoint to 12K)
Example (Set Channel 1 LOW setpoint to 12K)Example (Set Channel 1 LOW setpoint to 12K)
Example (Set Channel 1 LOW setpoint to 12K)
SEND
SENDSEND
SEND $SetSetp 0,0,12\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $12\r\n

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GetVolt(channel) - Returns the voltage in Volts for the selected channel.
Channel
ChannelChannel
Channel: 1 or 2
Returns
ReturnsReturns
Returns: $x.xxxx
Example (Get Channel 2 Voltage)
Example (Get Channel 2 Voltage)Example (Get Channel 2 Voltage)
Example (Get Channel 2 Voltage)
SEND
SENDSEND
SEND $GetVolt 2\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $1.2345\r\n
SetColdhead (Coldhead, on /off) Turns the coldhead on and off
Channel
ChannelChannel
Channel: 0 or 1
Returns
ReturnsReturns
Returns: $0 or $1 (0/1 for OFF/ON)
Example (Turn Channel 1 on Manual )
Example (Turn Channel 1 on Manual )Example (Turn Channel 1 on Manual )
Example (Turn Channel 1 on Manual )
SEND
SENDSEND
SEND $SetColdhead 0,1\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $0 or $1\r\n
GetColdhead x (where x is the Coldhead number, and it returns 0/1 for OFF/ON)
Channel
ChannelChannel
Channel: 0 or 1
Returns
ReturnsReturns
Returns: $0 or $1 (0/1 for OFF/ON)
Example (Get The status of th
Example (Get The status of thExample (Get The status of th
Example (Get The status of the coldead)
e coldead)e coldead)
e coldead)
SEND
SENDSEND
SEND $GetColdhead 0,1\r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $0 or $1\r\n
GetMode 0 (Channel, Mode) – Returns the mode of the selected channel, Coldhead or water pump
Channel
ChannelChannel
Channel: 0 or 1
Returns
ReturnsReturns
Returns: $0 or $1 (0 = Waterpump ,1 = Cryopump)
Example (Get the mode of the output
Example (Get the mode of the outputExample (Get the mode of the output
Example (Get the mode of the output )
) )
)
SEND
SENDSEND
SEND $Getmode 0 \r\n
RECEIVE
RECEIVERECEIVE
RECEIVE $0 or $1\r\n

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E1000 Curve Programmer
E1000 Curve ProgrammerE1000 Curve Programmer
E1000 Curve Programmer
To enter data for a user defined diode curve, the E1000
E1000E1000
E1000 Curve Programmer
Curve Programmer Curve Programmer
Curve Programmer can be used. This utility allows
the user to enter the polynomial coefficients that control the voltage to temperature conversion.
In order to determine appropriate values, several “Voltage vs. Temperature” data points should be viewed
in graph form. The graph can be broken up piece-wise into a maximum of 3 equations. For each of the
equations, a trend line should be developed using a program such as Microsoft Excel or Matlab. Up to a 6
th
order polynomial can be used for each equation to provide maximum flexibility.
Once the values have been chosen, the fields shown below should be populated.
Set the 2 voltages values that
determine the boundaries of the 3
equations.
Set all coefficient values for all 3
equations. Please ensure that each
text box is populated.
Begin by pressing “Get Values” at the
bottom of the screen. This will ensure
that communications are established.
If successful, the “Monitor Revision”
will be available.
Once all fields are populated, press
“Program Values” to permanently
program the new coefficients to the
CUSTOM curve.
An advanced feature is also provided to allow the user to write the
coefficients and setpoints to a file from the E1000 Temperature
Monitor. Select “File -> Write Values to File…” and browse to a file
location. This will create a user editable text file with the coefficients
and setpoints. Updates can be made to the file to change values,
and then downloaded back to the E1000 Monitor by selecting “File ->
Program Values From File…”.

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T
TT
Technical Specifications
echnical Specificationsechnical Specifications
echnical Specifications
The technical specifications for the E1000 Dual Channel Cryogenic Temperature Monitor are listed in the
table below.
E1000 Specifications
E1000 SpecificationsE1000 Specifications
E1000 Specifications
Display 2 Temperatures
Display 2 TemperaturesDisplay 2 Temperatures
Display 2 Temperatures
Features
FeaturesFeatures
Features Four Selectable Diode Curves
Four Selectable Diode CurvesFour Selectable Diode Curves
Four Selectable Diode Curves
Power
PowerPower
Power 110/220 VAC Input @ 50/6
110/220 VAC Input @ 50/6110/220 VAC Input @ 50/6
110/220 VAC Input @ 50/60 z
0 z0 z
0 z
(Universal Input)
(Universal Input)(Universal Input)
(Universal Input)
IEC Power Input
IEC Power InputIEC Power Input
IEC Power Input
DB9F (Diode Driver)
DB9F (Diode Driver)DB9F (Diode Driver)
DB9F (Diode Driver)
Connectors
ConnectorsConnectors
Connectors
DB9M ( Serial Connector)
DB9M ( Serial Connector)DB9M ( Serial Connector)
DB9M ( Serial Connector)
Carry AC Current
Carry AC CurrentCarry AC Current
Carry AC Current 10 A @ 250 VAC
10 A @ 250 VAC10 A @ 250 VAC
10 A @ 250 VAC
Carry DC Current
Carry DC CurrentCarry DC Current
Carry DC Current 5 A @30 VDC
5 A @30 VDC5 A @30 VDC
5 A @30 VDC
Max Switching Voltage
Max Switching VoltageMax Switching Voltage
Max Switching Voltage 400 VAC
400 VAC400 VAC
400 VAC
300 VDC
300 VDC300 VDC
300 VDC
Max Switching Current
Max Switching CurrentMax Switching Current
Max Switching Current NO: 10 A
NO: 10 ANO: 10 A
NO: 10 A
NC: 8 A
NC: 8 ANC: 8 A
NC: 8 A
Dry Contact Rating
Dry Contact RatingDry Contact Rating
Dry Contact Rating
Max Switching Power
Max Switching PowerMax Switching Power
Max Switching Power NO: 2,500 VA
NO: 2,500 VANO: 2,500 VA
NO: 2,500 VA
NC: 2,000 VA
NC: 2,000 VANC: 2,000 VA
NC: 2,000 VA
150 W
150 W150 W
150 W
Analog Output
Analog OutputAnalog Output
Analog Output 0
0 0
0 –
––
– 10 V
10 V 10 V
10 V
60mA max
60mA max60mA max
60mA max
Dimensions
DimensionsDimensions
Dimensions 8.46” (W) x 8.61(L) x 3.63” ( )
8.46” (W) x 8.61(L) x 3.63” ( )8.46” (W) x 8.61(L) x 3.63” ( )
8.46” (W) x 8.61(L) x 3.63” ( )

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Order Information
Order InformationOrder Information
Order Information
Use the following Table to determine the P/N and optional accessories when placing order with Austin
Scientific.
E1000 Dual Channel
E1000 Dual Channel E1000 Dual Channel
E1000 Dual Channel
Cryogenic Temperature
Cryogenic Temperature Cryogenic Temperature
Cryogenic Temperature
Monitor
MonitorMonitor
Monitor 93-00040-000
E1000, includes connections for dry contacts, analog output
and power cable. Order diode cable(s) separately per desired
configuration (see below).
99-00101-000 19" Rack Mount Kit
10-00001-000 E1000 Curve Programmer (to program custom diode curve)
Configuration
ConfigurationConfiguration
Configuration Cables
CablesCables
Cables 10 Ft
10 Ft10 Ft
10 Ft 15 Ft
15 Ft15 Ft
15 Ft 20Ft
20Ft20Ft
20Ft 50 FT
50 FT50 FT
50 FT
Single or Dual E1000
Compressor Input
Cable 81-00044-010 81-00044-015 81-00044-020 81-00044-050
Two Cryopumps or
coldheads
Dual Cryopump
Diode Cable 81-00038-010 81-00038-015 81-00038-020 81-00038-050