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> Lecroy 1440 multichannel high voltage system 64CH/5.6KV
Lecroy 1440 multichannel high voltage system 64CH/5.6KV
LeCroy 1440 Multichannel High Voltage System 64ch/5.6kv
I sold the 1445A controller card separately, IT IS NO LONGER INCLUDED! THIS UNIT IS CONSIDERED FOR PARTS/REPAIR ONLY!
Here we have a LeCroy mainframe, model 1449E upgraded to 1600W operation with dual 1442 DC Power supplies. It also includes a 1441 power module, and 8 model 1444 8ch 5600V plug-in modules, for a total of 64 channels of power, 32 dual polarity. More from the owner's manual and a download link below.
In very good physical condition, lightly used. With no controller card this unit is for parts/reapair only
HV Module Slots per Mainframe: 16.
Channels per Mainframe: Up to 256.
Maximum HV Output Power: 1.6 kW for Model 1449M;
800 W for Model 1449ME; for each plug-in module in excess
of eight, deduct 15 W from the 800 W available.
Ramp Rates: The HV run-up and run-down rates may be
selected by a jumper option and/or software on the 1445 or
1445A control units between 10-500 V/sec.
HV Enable Indicator Switch: Yellow lamp indicates HV is
ready for turn on (i.e., HV Disable is not actuated and INTER-
LOCK is not asserted). Integral with front-panel HV ON indi-
cator (red lamp) and HV Enable button. Rear-panel indicator
Input Power Status: Model 1445A - three LEDs indicate
presence of +5 V, +15 V, and -15 V. Model 1445 - two LEDs
indicate presence of -15 V and +5 V. Active lit by +15 V.
System Active/ENB: Front-panel LED indicates modules
Status: Lemo connector, TTL high = HV on, low = HV off.
Interlock: BNC connector, TTL high = on, low = off.
HV Limit Potentiometers: Set separate positive and nega-
System Protection: In the event of a power failure, the
system will shut down in an controlled manner. A front-panel
switch on the 1440 mainframe provides immediate shut down.
Panic-off in the rear is accomplished by pulling out the power
cord. An interlock is provided on the control unit that will
disable all HV in the mainframe when driven to ground.
Thermal Protection: A temperature monitor on each of the
low voltage power supplies shuts off the high voltage in the
event of overheating that can result from excessive loading,
clogged fan filters, or high ambient air temperatures.
Packaging: 19" rack-mount chassis, 17" wide x 22" deep x
26 1/4" high. (Add 3" to depth to include handle protrusion.)
Input Power: 180-260 V, AC 50/60 Hz, 15 A.
Humidity: 0 to 85% relative humidity.
Operating Temperature: 10 C to 40 C ambient.
Number of Channels: 8 per module; maximum of 128
Output Voltage: 500 V to 5600 V; < 500 V performance is
not rated. Polarity indicated by N or P suffix.
Output Current: Up to 1 mA per channel.
Voltage Regulation: 0.05% of full scale, line and load.
Programming Step: Employs a 14-bit DAC with 0.5 V/LSB.
Programming Accuracy: < (0.1% +5 V).
Programming Reproducibility: < 1 V at a constant load
Voltage Monitor Accuracy: (0.05% +0.5 V).
DC Current Monitor: The DC current drawn by the load is
monitored via a 16-bit ADC (located in the 1445A).
Resolution: 60 nA/LSB, Accuracy: 0.2% 4 LSB. Any DC
trip value between 1 LSB and full scale (1 mA) can be pro-
grammed. A trip indicator on the 1440 front panel will light
when any channel in the mainframe fails.
DC Current Trip: Programmable between 0 and 1 mA. One
setting applies to all channels in module.
AC Current Trip: Programmable between approximately
200 nA and 3 mA (14-bit DAC). Same as DC current trip
except for a low frequency cut off of 3 Hz ( 300 msec) and
a high frequency cut off of 150 Hz ( 6 msec). Current
spikes shorter than 6 msec are integrated and will trip the
circuit only if the integrated value over 6 msec exceeds the
Output Long-term Stability: < 2 V/week at constant load
Output Ripple: Typical < 5 mV RMS, maximum 10 mV
External Monitoring Capability: 6 pins of the 10-pin
header per channel are used for external monitoring; 2 pins
monitor voltage (1000:1 reduction); 2 pins provide DC cur-
rent measurement with 10 V/mA sensitivity; 2 pins monitor
over-voltage protection (see below).
Over Voltage Protection: Adjustable by a front-panel
potentiometer (one per channel) between 1 kV and 6 kV.
Inter-Channel Protection: 4 pins of the 10-pin header for
each channel are available for daisy-chaining channels to-
gether such that when any channel on the daisy-chain fails,
all channels on the daisy-chain will ramp down at the
Output Connector Type: SHV connectors.
The Model 1444 HV module is compatible with existing
mainframes. However, if used with the older, economy 1445
Controller, the lack of a 16-bit ADC means lower accuracy
and increased software effort (i.e., on the 1444, a demand of
2000 counts produces a voltage of 4000 V). In order to use
all the features and the full precision of the 1444, the 1445A
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_gsrx_vers_307 (GS 5.3.6 (307))
