| Inputs |
Two
Multipurpose Sensor Inputs |
| Type |
Front
panel select any supported sensor. |
| Constant-Voltage
Excitation |
User
selections of 1.0V, 10mV and 1mV RMS. Excitation current is autoranged
from
1mA to 32nA in 5% of power steps. Excitation is a 1.25Hz
bipolar square wave. |
| Constant-Current
Excitation |
DC
current excitations available are 1mA, 100µA or 10µA. |
| Supported
Sensors |
Range |
Excitation |
Example Sensors |
| Ruthenium
Oxide |
200mK
to 273K |
Constant-Voltage |
Cryo-con
R400, R500. |
| Cernox™ |
300mK
to 420K |
Constant-Voltage |
Lakeshore
CX-1020, CX-1080 |
| Germanium |
0.3K
to 100K |
Constant-Voltage |
Lakeshore
GR-200A |
| Carbon
Glass™ |
1.0K
to 325K |
Constant-Voltage |
Lakeshore
CGR-1-500 |
| Platinum
RTD |
14K
to 1200K |
1mA
or 100uµA |
Cryo-con
CP-100, XP-100, XP-1K |
| Silicon
Diode |
1.4K
to 475K |
10µA |
Cryo-con
S800 , Scientific Inst. SI-410,
Lakeshore DT-470, DT-670. |
| Rhodium-Iron |
1.4K
to 800K |
1.0mA |
Oxford
PHZ 0002, Lakeshore RF-100 |
| Sample
Rate |
10Hz
per channel in all modes. |
| ADC resolution |
24
Bits. |
| Sensor
Connection |
4-wire
differential. Connector: DB-9 Receptacle. |
| Measurement
Drift |
Less than 15ppm
per degree Celsius |
| Measurement
Filter |
0.5,
1, 2, 4, 8, 16, 32 and 64 Seconds |
| Calibration
Curves |
Built-in
curves for most industry standard sensors plus four user curves
with up to 200 entries
each. Interpolation is performed using a Cubic Spline algorithm
for highest possible accuracy. |
| User
Interface |
 |
| Display Type |
20 x 2 character
Blue graphics VFD, 9mm and 4.5mm character heights. |
| Inputs Displayed |
Up
to 4. |
| Keypad |
Sealed
Silicon Rubber. |
| Temperature
Display |
Six
significant digits, autoranged. Units are: K, C, F, Volts and Ohms. |
| Display Update
Rate |
1.0
Seconds |
| Display Resolution |
User
selectable to seven significant digits |
|
|
|
|
| Remote
Interfaces |
Ethernet,
RS-232 |
| Isolation |
The Ethernet interface
is electrically isolated. The RS-232 interface is not isolated. |
| Ethernet |
Industry-standard
10-BaseT, RJ-45 connector. |
Web Server |
Temperature monitoring
and instrument configuration can be performed using any web browser. |
Data Socket
|
TCP/IP User Data
Socket for complete remote operation using a simple, IEEE-488 like
ASCII command language. This is the primary interface
to data acquisition software including LabView™. |
SMTP |
The monitor can
be configured to send e-mail upon the trigger of a user specified
event. |
| RS-232 |
Serial port is
an RS-232 standard null modem. Rates are 300, 1200, 4800, 9600,
19,200 and
38,400 Baud. Connector: DB-9 Male. |
| Language |
Remote interface
language is IEEE SCPI compliant. |
| LabView™
Drivers |
Available for
all interfaces. |
|
|
| Status
Outputs |
|
| Relays |
Two dry-contact
relays. Independently programmable to assert on a high or low temperature
condition. Contact Ratings: 30 Watts, 1A Max. Normally-open
contacts. Connection is via 6-pin
detachable terminal
block. |
| Analog Output |
One analog output,
0 to 4.096V. Connected to any selected input channel. |
| Visual |
Three front panel
LEDs indicate an alarm condition and the status of both relays. |
| Remote Interface |
Sensor fault and
alarm conditions are reported over the remote interfaces. |
|
|
|
|
| Misc. |
|
| Alarm Status |
A front panel
LED indicates alarm status. Alarms also reported via the remote
interface. |
| Data Logging |
Internal 20K byte
circular buffer holds 1,000 entries. Non-volitile. |
|
|
|
|
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