01 · PEM Hydrogen Generators
HG-1000
1000 ml/min, the highest capacity
The largest capacity of the series: 1000 ml/min at full output and 700 ml/min for continuous consumption, for laboratories whose combined hydrogen demand outgrows the smaller models.
1000 ml/min
Max. generation
700 ml/min
Continuous duty
99.9995 %
Purity
Overview
What this model does well
700 ml/min continuously
The full 1000 ml/min is available on demand; 700 ml/min is the figure to plan a continuous installation around.
Optional overflow control
With the HG-OFC kit, flow above the set point for more than 60 seconds stops generation and purges the oven or chamber with nitrogen through a three-port valve.
Tank level on the panel
Full, Med and Low LEDs read the three sensed levels; a blinking Low means the tank is empty and generation has stopped.
One monthly service visit
Every 30 days: change the water, clean the tank and change or regenerate the molecular sieve. The silica gel is regenerated whenever it has turned pink.
Specifications
HG-1000 — full specification
Compare with other models →Generation
- Maximum H₂ generation
- 1000 ml/min
- Continuous duty (70 % of max.)For continuous consumption, draw no more than 70 % of the model's maximum capacity.
- 700 ml/min
- H₂ purityReached after the three-stage drying train.
- up to 99.9995 %
- Cell technology
- PEM electrolysis of pure water
- Hydrogen storage
- None — only the volume held in the filters
- By-product
- O₂, vented
Pressure
- Outlet pressure
- Set on the keypad
- Over-pressure cut-outAbove 90 PSI generation stops and the pressure over alarm is raised.
- 90 PSI
Feed water
- Water quality
- Deionised, < 0.5 µS/cm (> 2 MΩ·cm)
- ElectrolyteAdding alkali destroys the membrane and voids the warranty.
- None — never add KOH or NaOH
- Tank level sensing
- 3 levels — low, medium, full
- Water change
- Empty, rinse and refill every 30 days
Drying train
- Stages
- Water trap + silica gel + 5 Å molecular sieve
- 1 · Water trap
- Automatic liquid knock-out, solenoid drain — no service medium
- 2 · Silica gelRegenerate in an oven at 120 °C for 60–120 min.
- Blue indicating gel; pink at 60 % saturation
- 3 · Molecular sieveRegenerate in an oven at 300 °C for 120–240 min.
- 5 Å, dark yellow; no colour change — service monthly
Control & interface
- Display
- 4-line LCD, normal and set mode
- Keypad
- 3 keys — ▲, ▼, F (pressure / overflow)
- Status LEDs
- Power, Generate, Alarm
- Water-level LEDs
- Full, Med, Low
- Readings in set mode
- Operating hours, water quality, total H₂ generated
- AlarmsAlarm LED blinks, buzzer sounds every 10 s, message on LCD line 4.
- Water empty, water over, pressure over, H₂ leak
- Data interface
- RS-232
Installation & supply
- Mains supply
- 220 V AC, 50 Hz
- Power / fuseRating as supplied for the HG-250. Confirm the supply rating for HG-500 and HG-1000 at order.
- 150 W · 5 A glass fuse
- Rear connections
- H₂ outlet, water drain, RS-232, cooling fan
- Siting
- Level bench, fan and rear panel clear, drain accessible
- Service interval
- Water change + tank clean every 30 days
Ordering
- Order code
- HG-1000
- Overflow control (HG-OFC)
- Option — kit with three-port N₂ purge valve
- Filter refill set (HG-FLT)
- Silica gel and 5 Å molecular sieve
Values taken from HC-DS-PEMHG Rev 1. The configuration is confirmed in your offer.
Documentation
Datasheet & documents
Primary document
PEM-HG datasheet
PDF · EN · 3.2 MB · HC-DS-PEMHG Rev 1
Model matrix for HG-250, HG-500 and HG-1000, gas path and drying train, control panel and alarms, connections, options and order codes.
Download PDF- PDFDownload ↓
PEM-HG datasheet
EN · 3.2 MB · HC-DS-PEMHG Rev 1
- PDFDownload ↓
PEM-HG operating manual
EN · 2.8 MB · HC-OM-PEMHG Rev 1
The PEM-HG datasheet and operating manual are published in English and can be downloaded directly. German editions are in preparation — ask us and we will send them as soon as they are released. Go to the downloads centre →
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