PMT HIGH VOLTAGE POWER SUPPLY
- Max Voltage: 2 to 5 kV
- Max Current: 1 to 2 mA
Integrated Power Supply for Preamplifiers
The EP series is a high-performance high-voltage power supply designed for Photomultiplier Tubes (PMT) and electron multipliers. Despite its compact width of just 212 mm (8.35 inches), the unit integrates a high-voltage output with preamplifier power outputs (±15 V and ±5 V). With ultra-low ripple noise down to 15 mVp-p on the high-voltage output, the EP series ensures stable performance for precision applications. Additionally, isolated digital control is available by selecting the optical interface option (-LGob).
FEATURES AND BENEFITS
- Integrated preamplifier power outputs (±15 V, ±5 V)
- Compact, space-saving benchtop design
- Ultra-compact design, leading in its class
- Large 4-digit digital display
- Comprehensive protection circuits
APPLICATIONS
Models
Specifications
- Input voltage
- 100 to 240 Vac, 50/60 Hz, Single-phase
- Output voltage control
-
[Local] Rotary encoder on front panel
[Digital remote] Command (option)
Options
- -LGob
-
Optical Interface Port
This option replaces the standard control interface with an optical interface port. By combining this option with an optical adapter (sold separately), the power supply can be controlled while electrically isolated from the controller.- -LGob: Optical interface + optical cable 2 meters
- -LGob(Fc5): Optical interface + optical cable 5 meters
- -LGob(Fc10): Optical interface + optical cable 10 meters
- -LGob(Fc20): Optical interface + optical cable 20 meters
- -LGob(Fc40): Optical interface + optical cable 40 meters
This configuration is strongly recommended for the following environments:
- oisy environments, such as factories (e.g., near motors or coils).
- Applications where the power supply and controller (PC or PLC) must be separated by more than 2 meters.
- Systems where arcing or output short-circuits may occur.
Accessories
- Optical isolation adapter
-
To use the optical interface, you need to prepare an optical interface adapter separately. The following interface adapters are available according to your controller port.
- CO-E32: LAN to optical interface adapter
- USB-OPT: USB to optical interface adapter
- CO-OPT2-9: RS-232C (9 pin) to optical interface adapter
- CO-OPT2-25: RS-232C (25 pin) to optical interface adapter
- CO-OPT4-25: RS-485 (25 pin) to optical interface adapter
- CO-G32: GPIB to optical interface adapter (Scheduled for discontinuation in December 2028)
Example of communication with optical fiber 
For details, refer to CO/USB series
- AC Input Cable
-
Standard CABLE TYPE1 
125 V/10 A 2.5 meters
Fixed lengthSold separately CABLE TYPE3
(for the input of 200 V)
250 V/10 A 2.5 meters
Fixed lengthSold separately CABLE TYPE4
(for the input of 200 V)
250 V/10 A 2.5 meters
Fixed length
Dimensions
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-
EP series Datasheet
Date: 2024-10-03 rev.10
PDF (1,127 KB)
-
Safety and Usage of High voltage Power supply
Date: 2025-09-08 rev 04
PDF (602 KB)
-
High Performance High Voltage Power Supplies
Date: 2026-02-09 rev 13
PDF (4,555 KB)
-
EP series Instruction Manual
PDF (492 KB)
Login Required
-
EP series Datasheet
Date: 2024-10-03 rev.10
PDF (1,127 KB)
-
Safety and Usage of High voltage Power supply
Date: 2025-09-08 rev 04
PDF (602 KB)
-
High Performance High Voltage Power Supplies
Date: 2026-02-09 rev 13
PDF (4,555 KB)
-
EP series Instruction Manual
PDF (492 KB)
On this website, we provide only the latest versions of information and instruction manuals for our products. Therefore, the newest versions of manuals on the website may differ from those that came with products you purchased in the past.
