The Accuris myVolt Touch Power Supply is a mid-tier programmable electrophoresis power supply — 300 V max output, capacitive touch-screen control, with constant-voltage / constant-current dual modes and automatic crossover protection for protocol-grade electrophoresis workflows. The myVolt Touch supports 4 pairs of output jacks (wired in parallel) for multi-tank operation, and uses a dual-orientation auto-rotating display (horizontal or vertical bench placement) with folding-foot recesses for stacking 2 units — engineered for bench-space-constrained labs that need touch-screen programmable PSU functionality without committing to floor-print research-grade PSU capital.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | E2301 |
| Power input | 100 to 240 VAC, 50/60 Hz (universal input per brochure) |
| Output voltage | 10 to 300 VDC, in 1 V increments |
| Voltage accuracy | ±2 % of displayed value or 3 V (whichever is greater) |
| Output current | 4 to 400 mA, in 1 mA increments |
| Current accuracy | ±2 % of displayed value or 5 mA (whichever is greater) |
| Maximum power | 100 W |
| Output terminals | 4 pairs, wired in parallel |
| Timer | 1 min to 20 hours, or continuous |
| Control panel | Capacitive touch screen |
| Display | Color TFT LCD, dual-orientation auto-rotate |
| Operating modes | Constant voltage, constant current, with automatic crossover |
| Fuse | 250 V, 2.0 A, 5 × 20 mm, Type T |
| Operating temperature | 0 to 40 °C |
| Humidity | 0 to 95 % |
| Dimensions | 8.5 × 6.3 × 4.0 in / 21.5 × 15.5 × 9.75 cm (W × D × H) |
| Weight | 1.5 lbs / 0.68 kg |
| Bench-space features | Dual-orientation placement (horizontal or vertical), folding feet recesses for stacking 2 units |
| Use restriction | Research only — not for medical, clinical, or diagnostic applications per brochure |
| List price | $697 |
Constant Voltage / Constant Current Modes — Why It Matters
The myVolt Touch operates in either CONSTANT VOLTAGE or CONSTANT CURRENT mode (operator-selectable). The non-constant parameter is set as a limit — the PSU outputs the constant parameter, and the non-constant parameter floats up to the configured limit.
| Mode | What's constant | What floats | Use case |
| Constant Voltage | Voltage (operator-set) | mAmp current (up to set limit) | Standard electrophoresis runs where voltage is the operator-controlled parameter |
| Constant Current | mAmp current (operator-set) | Voltage (up to set limit) | Protocol-grade runs where current is the controlled parameter for reproducibility (e.g., precise band-migration timing across runs) |
Automatic crossover protection. If during a run the non-constant parameter (the limit) is met due to load resistance changes (e.g., buffer concentration drift), the PSU automatically crosses over so the non-constant parameter becomes the new constant and limiting parameter. A red outline appears around the new "constant" value. This protection prevents over-voltage / over-current damage to the gel tank and electrodes.
Maximum power limit (100 W). Per Ohm's law, Power (W) = Current (I) × Voltage (V). The myVolt Touch limits total output to 100 W; if the load conditions push toward this limit, the PSU displays "PWR LMT" and limits the non-constant parameter to prevent exceeding the maximum power output. Most standard electrophoresis buffer concentrations do not approach this limit, but the protection prevents damage in low-resistance fault conditions.
Multi-Tank 4-Pair Output Operation
The myVolt Touch's 4 pairs of output jacks are all wired in parallel — every connected gel tank sees the same output voltage and current simultaneously. That supports a single-tank standard workflow, 2-tank parallel runs (e.g. paired control and experimental gels), and 3- or 4-tank parallel runs for high-throughput screening or multi-protocol workflows that share one voltage / current setting.
Total power constraint applies across all tanks. The 100 W max power limit applies to the sum of all output jacks — running 4 tanks pulls 4× the per-tank current at the set voltage. Plan workflow voltages to keep total power below the limit.
E2100 vs E2301 — Pick the Right Tier
| E2100 myVolt Mini | E2301 myVolt Touch (this product) |
| Output voltage | 100 VDC or 200 VDC (fixed) | 10–300 VDC continuous (1 V increments) |
| Output current | (unspecified, fixed-output tier) | 4–400 mA continuous (1 mA increments) |
| Max power | (entry-tier — not power-rated in spec) | 100 W |
| Output jacks | 2 (parallel) | 4 pairs (parallel) |
| Control mode | Voltage selector | Capacitive touch screen, constant V / constant I, auto-crossover |
| Display | Voltage indicator | Color TFT LCD, dual-orientation |
| List price | $273 | $697 |
Pick the myVolt Touch (E2301) when:
- Continuous voltage / current control is required for the workflow
- Constant-current mode matters for protocol reproducibility
- 3+ gel tanks need to run in parallel (the Mini's 2-jack design is insufficient)
- Bench-space stacking / dual-orientation and touch-screen control fit the operator workflow
Pick the myVolt Mini (E2100) when: budget-tier fixed-voltage workflows are sufficient (see E2100 page for detail).
Application Profile
Protocol-grade electrophoresis workflows — labs running standardized electrophoresis protocols where constant-current mode supports reproducibility across runs.
Multi-tank high-throughput electrophoresis — facilities running 3–4 gel tanks in parallel benefit from the 4-pair output jack design.
Sensitive-resolution separations — workflows requiring continuous voltage tuning (e.g., 50 V long runs for high-resolution band separation, 150 V intermediate-rate runs) benefit from the 1 V increment programmability.
Method-development electrophoresis — protocol-development workflows where voltage / current optimization across runs benefits from the touch-screen programmable control.
Bench-space-constrained labs — labs benefit from the dual-orientation placement (horizontal or vertical) and stackable 2-unit design that fits the PSU into compressed bench layouts.
Multi-chassis electrophoresis facilities — sequencing cores, biotech R&D groups, and clinical-research labs running multiple electrophoresis protocols benefit from the protocol-grade PSU.
Frequently Asked Questions
What is the output range of the E2301? 10–300 VDC in 1 V increments and 4–400 mA in 1 mA increments, with a 100 W maximum power.
How many gel tanks can it run at once? Up to 4 — it has 4 pairs of output jacks wired in parallel (the 100 W total power limit is shared across all connected tanks).
What is automatic crossover? If the limiting (non-constant) parameter is reached mid-run, the supply automatically switches that parameter to become the constant / limiting one, preventing over-voltage / over-current damage.
What voltage input does it need? Universal 100–240 VAC, 50/60 Hz — no separate voltage variant required.
How does the E2301 differ from the E2100 myVolt Mini? The E2301 offers continuous 10–300 V / 4–400 mA control, a touch screen, and 4 output pairs; the E2100 ($273) is a fixed-voltage 2-output entry unit.
Ordering & Configuration
Compatibility with gel tank chassis. The myVolt Touch works with any electrophoresis tank that accepts standard banana-plug electrical leads. Compatible with the Accuris myGel Mini (E1101) and myGel InstaView (E1200) gel-tank workflows, plus other mini and standard electrophoresis tanks with banana-plug input.
Universal input flexibility. The myVolt Touch's 100–240 VAC universal input supports both 115 V and 230 V outlets without a separate -E voltage variant. Confirm at quote which power-cord plug type the destination outlet requires (NEMA 5-15 for 115 V North America; UK BS 1363, Schuko, AS/NZS 3112 for 230 V international).
Confirm at quote: power-cord plug type, gel-tank chassis pairing, workflow voltage / current programming needs (constant V vs constant I, voltage range), multi-tank parallel-run intent, training requirements, and lead time.
Warranty: Per Accuris standard warranty terms — confirm at quote.
Accuris myVolt power-supply tier comparison:
- E2100 — myVolt Mini (entry-tier, 100 V / 200 V fixed, 2 outputs, $273)
- E2301 (this product) — myVolt Touch (mid-tier, 10–300 V / 4–400 mA continuous, 4 outputs, touch screen, $697)
Pick the myVolt Touch for protocol-grade continuous-control workflows; pick the myVolt Mini for budget-tier fixed-voltage workflows.
