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1.2
Specifications
Table 1-1. Specifications of the DIGITEL 1500
Parameter
Rack mount
Shipping weight; Unit weight
Operating temperature
Altitude
Humidity
Storage temperature
Input voltage
Line frequency
Power consumption
FUSE
HV output:
Short circuit
Polarity
Analog outputs:
Voltage
Current
Pump size
Display:
Voltage display
Current display
Pressure display
Rate-of-Rise bargraph
Status display
Computer interface ( optional):
RS-232/422 serial ASCII
Setpoints ( optional)
Bakeout ( optional)
Remote, Operate, Standby
1-2
Introduction
Specification
19 in. x 7 in. x 19.75 in.
105 lb; 102 lb
0 to 40
°
C. Free air flow around the unit is required.
Sea level to 10,000 ft.
0 to 80% RH (non-condensing)
20 to 70
°
C
208 or 230 Vac ±10%. Selectable by internal jumper.
48 to 62 Hz. No adjustment necessary.
Idle: SOW; Operating: 250W typical; Max: 900W.
l0A slow blow 250V, 4A slow blow 250V. On rear panel.
Internal jumper selects voltage at 6000V or 7000V.
750 mA at 60 Hz, at nominal line voltage.
Positive. Can be converted to negative.
lV 3333 V
1 V 333 mA or 1 V = 333 µA (jumper select), 1 to 1 0V
Selectable from rear panel (120 LIS or greater). Use pump
size to cacluate pressure and control max pump power.
7-segment red LED. 0.43 character height.
0000-9900V in increments of 1 00V.
0.0 x 10-
6
to 5.1.0 x 10-
0
A. Autoranging.
1 x 10-
9
to 1 x 10
-4
torr, or 1 x 10-
7
to 1 x 10-
2
Pa.
Autoranging. Units selected from the rear panel.
7 element bargraph indicates the rate of change of current.
Indicates display mode (volts, current, or pressure),
setpoints ½, bakeout status, power on, HV enable.
Baud rates: 150, 300, 600, 1200, 2400, 480, 9600.
7-Bit, 1 stop bit, even parity. No parity required on input.
Two user-adjustable SPDT setpoint relays with variable
hysteresis and control parameter. Protected with a 4-digit
code. One fixed setpoint activates at 2000V. EEPROM
provides permanent setpoint storage for up to 10 years.
220V at 30A (resistive load) for main heater control.
Optically isolated, requires 12 to 30 V de pulse at 3 mA,