COLO.Science · Technical SpecificationVIKING-PH125
Benchtop pH Meter · pH −2.00…20.00 · ±0.01 pH · 1–5 points · 5.0″ touchscreen
VIKING-PH125 Benchtop pH Meter is a benchtop pH meter with a 5″ colour touchscreen for pH, ORP and relative mV: −2.00–20.00 pH, ±0.01 pH, 1–5 point calibration from 25 buffers, calibration reminder, 1000-result GLP memory, USB and RS-232.
Benchtop pH MeterpH −2.00…20.00±0.01 pH1–5 points5.0″ touchscreenUSB / RS-232−30.0 to 105.0 °C
VIKING-PH125 · Benchtop pH Meter
5.0″ colour touchscreen · pH −2.00…20.00 · ±0.01 pH · 1–5 points
Model / SKUVIKING-PH125
PRO5357
PRO5357
Address / HQPolje ob Sotli 4
SI-3255, Slovenia
SI-3255, Slovenia
Contactsales@colo.si
+386 70 713 437
+386 70 713 437
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VIKING-PH125 · Benchtop pH MeterTechnical data sheet · Informational document · Controlled electronic document
Manufacturer contact: sales@colo.si · +386 70 713 437
Manufacturer contact: sales@colo.si · +386 70 713 437
VIKING-PH125 · technical specificationBenchtop pH Meter with 5.0″ colour touchscreen
pH −2.00…20.00±0.01 pH1–5 points5.0″ touchscreenUSB / RS-232— 5.0″ colour touchscreen
📋 Product Overview
Application profile
Quality control: pH of raw materials, intermediates and finished products.
Water and environment: drinking water, wastewater and surface water.
Food and agriculture: food, beverages, soil extracts and nutrient solutions.
Teaching laboratories: routine pH and ORP exercises.
Advantages
pH accuracy: ±0.01 pH
Calibration: 5 buffer groups (25 buffers), auto recognition, custom buffers, calibration reminder 1–1000 h
Data memory: 1000 results, GLP
Data output: RS-232 and USB (printer optional)
Key features
Display: 5.0″ colour touchscreen
Measurement modes: pH / mV (ORP) / relative mV
Temperature range: −30.0 to 105.0 °C (ATC / MTC)
Inputs: pH: BNC (>3 × 10¹² Ω); temperature: Cinch, NTC 30 kΩ
Electrode holder: 360°, height ≈ 320 mm, reach ≈ 400 mm
Core technical summary
| Parameter | Specification |
|---|---|
| Model | VIKING-PH125 |
| SKU | PRO5357 |
| Instrument type | Benchtop pH Meter |
| pH range | −2.00 to 20.00 pH |
| pH resolution | 0.01 pH |
| pH accuracy | ±0.01 pH |
| mV accuracy | ±1 mV (0.05 % FS) |
| Calibration points | 1–5 |
| Data memory | 1000 results, GLP |
| Data output | RS-232 and USB (printer optional) |
pH accuracy±0.01 pH
pH resolution0.01 pH
Calibration points1–5
Data memory1000 results
Technical values are provided for product selection. The delivered configuration, electrode type and accessory set are confirmed in the official COLO.Science quotation.
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📊 Technical Parameters
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Display | 5.0″ colour touchscreen | Calibration | 5 buffer groups (25 buffers), auto recognition, custom buffers, calibration reminder 1–1000 h |
| Measurement modes | pH / mV (ORP) / relative mV | Calibration points | 1–5 |
| pH range | −2.00 to 20.00 pH | Data memory | 1000 results, GLP |
| pH resolution | 0.01 pH | Endpoint mode | Auto / manual |
| pH accuracy | ±0.01 pH | Extras | Continuous mode; live curve pH or mV vs. reading number |
| mV range | −2000.0 to 2000.0 mV | Data output | RS-232 and USB (printer optional) |
| mV resolution | 0.1 mV | Inputs | pH: BNC (>3 × 10¹² Ω); temperature: Cinch, NTC 30 kΩ |
| mV accuracy | ±1 mV (0.05 % FS) | Power supply | 220 V AC 50/60 Hz, 9–12 V DC |
| Temperature range | −30.0 to 105.0 °C (ATC / MTC) | Dimensions | 250 × 165 × 65 mm |
| Temperature accuracy | ±0.2 °C | Electrode holder | 360°, height ≈ 320 mm, reach ≈ 400 mm |
Specification notes
Buffers: the meter recognises standard buffer groups automatically; custom buffers can be defined.
Electrode diagnosis: offset and slope are shown after calibration with a colour-coded electrode status.
ORP: ORP (mV) requires a separate platinum ORP electrode.
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🧪 Electrodes and Accessories
—
3-in-1 pH electrode
Combined pH electrode with built-in temperature sensor; BNC + Cinch (NTC 30 kΩ) connectors, refillable 3 mol/L KCl.
Standard delivery
—
pH buffers 4.01 / 6.86 / 9.18
Three standard buffer solutions for the first calibration.
Standard delivery
—
Electrode holder
Holder arm with 360° rotation, height ≈ 320 mm, reach ≈ 400 mm; mounts on the meter base or a stand-alone base.
Standard deliveryMore electrodes and accessories
| SKU | Item | Use | Status |
|---|---|---|---|
| — | 3 mol/L KCl filling solution | Electrode maintenance | Optional |
| — | ORP electrode (platinum) | ORP | Optional |
| — | RS-232 printer | Documentation | Optional |
Standard delivery: meter, 3-in-1 pH electrode, electrode holder with stand-alone base, 3 pH buffers, 3 mol/L KCl, power adapter. Standard delivery is confirmed in the quotation.
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🖼️ Visuals, Configuration Guidance and Support
Ordering information
| Item | Value |
|---|---|
| Model | VIKING-PH125 |
| SKU | PRO5357 |
| Instrument type | Benchtop pH Meter |
| Standard delivery | 3-in-1 pH electrode, electrode holder with stand-alone base, 3 pH buffers, 3 mol/L KCl, power adapter |
| Power supply | 220 V AC 50/60 Hz, 9–12 V DC |
Configuration checklist
Resolution: 0.01 pH for routine work, 0.001 pH for research and pharma.
Documentation: GLP memory, USB and printer output.
Samples: viscous, low-conductivity or hot samples may need a special electrode.
Manufacturer and support
COLO Lab Experts
Polje ob Sotli 4, SI-3255, Slovenia
Selection guidance: VIKING-PH125 is chosen for daily laboratory pH with touchscreen operation, GLP memory and USB. COLO.Science helps you choose the electrode and consumables.
Quick contact
COLO.Science · pH meter configuration support
Need help choosing the right pH meter configuration?
Tell us the sample type and how you document results. COLO.Science will confirm the electrode, standards and VIKING-PH125 configuration for your workflow.
Ask us:
Price and current discount, delivery time, electrode selection for your sample, calibration standards, installation and operator training, spare electrodes and accessories — write to sales@colo.si or call us.
Price and current discount, delivery time, electrode selection for your sample, calibration standards, installation and operator training, spare electrodes and accessories — write to sales@colo.si or call us.
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