PMT Series
- 500V to 7.5kV @ 1.9 to 4 Watts
- Low Cost Modular Design
- Excellent Stability & Regulation
- Low Noise & Ripple
- CE Listed, UL Recognized and RoHS Compliant
*Note: All specifications are subject to change without notice. Please consult the English PDF version of this datasheet for the most up-to-date revision.
DC-DC High Voltage Power Supplies
Spellman’s Bertan brand of PMT modular high voltage power supplies offer well regulated, fixed polarity outputs up to 7.5kV, which operate off a low voltage DC input voltage. These fully enclosed modules are specifically designed with proprietary linear power conversion techniques to provide exceptionally low ripple and noise. The PMT is ideal for precision applications including: photomultiplier tubes, solid state detectors and ultrasonic transducers.
The output voltage can be controlled by either a local internal potentiometer or by a customer provided ground referenced signal for remote operation. Additionally a ground referenced output voltage monitor signal is provided. The PMT can be powered from either a single positive voltage source or a split ± voltage source, providing application flexibility.
Typical applications:
- Photomultiplier tubes
- Ultrasonic transducers
- Solid state detectors
Specifications
(Ref. 128040-001 REV. W)
Input Voltage:
Option 1: +24Vdc to +30Vdc @ 400mA
Option 3: ±12Vdc to ±18Vdc @ 400mA
specify “-1” (option 1) or “-3” (option 3) when ordering
Efficiency:
˜50%, typical
Output Polarity:
Positive or negative, specify at time of order
Output Voltage:
See “model selection” table
Output Current:
See “model selection” table
Output Power:
1.875W, 2W, 2.5W, 3W, 4W
Voltage Regulation:
Line: ±0.001% of rated output voltage for a
+1% input line change
Load:±0.001% of rated output voltage for a
full load change
Ripple:
See “model selection” table
Stability:
≤ 0.005% per hour, 0.02% per 8 hours, after a 1/2 hour warm up
Accuracy:
Remote Programming ±(2% of setting, +0.5% of maximum) Voltage Monitor ±2%
Temperature Coefficient:
≤ 50ppm/°C
Arc/Short Circuit:
All units are fully arc and short circuit protected and will limit continuous short circuit output current to less than 150% of maximum rated output current.
Operating Temperature
0°C to +50°C
Storage Temperature:
-40°C to +85°C
Humidity:
20% to 85% RH, non-condensing
Interface Connector:
12 position card edge connector, mate provided with unit
Output Connector:
A captive 24. (610mm) of RG-59B/U shielded cable, unterminated is provided
Cooling:
Convection cooled.
Dimensions:
3.875.W X 1.25.H X 6.3125.D (98mm x32mm x 160mm)
Weight:
≤ 2.0 pounds (0.9kg)
Regulatory Approvals:
Designed to meet EEC EMC Directive. Compliant to EEC Low Voltage Directive. UL/CUL recognized File E148969. RoHS compliant.
MODEL SELECTION TABLE
| Model | Output Voltage | Output Current | Ripple (Vpp) |
|---|---|---|---|
| PMT-05C-P,N | 0 to 500V | 0 to 8mA | 5mV |
| PMT-10C-P,N | 0 to 1kV | 0 to 4mA | 4mV |
| PMT-20C-P,N | 0 to 2kV | 0 to 2mA | 2mV |
| PMT-30C-P,N | 0 to 3kV | 0 to 1mA | 6mV |
| PMT-50C-P,N | 0 to 5kV | 0 to 0.5mA | 10mV |
| PMT-75C-P,N | 0 to 7.5kV | 0 to 0.25mA | 100mV |
Specify “P” for positive polarity or “N” for negative polarity
INTERFACE CONNECTOR
| Model | Output Voltage | Option 1 Pin Number | Option 3 Pin Number |
|---|---|---|---|
| + Power Input | +24Vdc to +30Vdc or +12Vdc to +18Vdc | 3&4 | 3 & 4 & 5 |
| -Power Input | -12Vdc to -18Vdc | n/a | 2 & 6 |
| Ground | Ground | 1 & 12 | 1 & 12 |
| Voltage Monitor | See Voltage Monitor Table | 11 | 11 |
| +9Vdc Reference | +9.0Vdc, 10mA maximum | 10 | 10 |
| Voltage Program Input | 0 to 9Vdc = 0 to 100% rated output, 100kΩ Zin | 8 | 8 |
| Local Voltage Program | Internal program potentiometer wiper, 0 to 9Vdc | 9 | 9 |
VOLTAGE MONITOR TABLE
| Model | Signal Voltage | Signal Impedance |
|---|---|---|
| PMT-05C-P,N | 0 to 5 volts | 50k ohms |
| PMT-10C-P,N | 0 to 1 volts | 10k ohms |
| PMT-20C-P,N | 0 to 2 volts | 25k ohms |
| PMT-30C-P,N | 0 to 3 volts | 30k ohms |
| PMT-50C-P,N | 0 to 5 volts | 100k ohms |
| PMT-75C-P,N | 0 to 7.5 volts | 200k ohms |
Note: The Voltage Monitor polarity matches the
high voltage output polarity
Tables & Diagrams
DIMENSIONS: in.[mm]
TOP VIEW
BOTTOM VIEW
FRONT VIEW
Frequently Asked Questions
What Is a Safe Level of High Voltage?
Where Can I Obtain Information on High Voltage Safety Practices?
What Kind of High Voltage Connector Do You Use on Your Supplies?
What Do You Mean That the Output Side of the High Voltage Cable on Most Standard Products Is “Unterminated”?
How Should I Ground Your Supply?
Why Is Arcing an Issue for a High Voltage Power Supply?
