```html VIKING-PH125 · Technical Specification (Landscape)
COLO.Science · Technical Specification
VIKING-PH125
Professional Benchtop pH Meter · 0.01 pH resolution · 5.0″ Color Touchscreen
Reliable benchtop pH meter for routine and advanced analytical applications with 0.01 pH resolution and ±0.01 pH accuracy. Features a 5.0″ color touchscreen, up to 5‑point calibration with automatic buffer recognition (5 groups / 25 buffers), ATC/MTC temperature compensation, GLP data management and 1000 data sets storage.
pH / mV / Rel.mV / °C 0.01 pH resolution 5.0″ touchscreen 5‑point calibration 25 buffers / 5 groups ATC / MTC 1000 data sets
Document type: Technical Specification Sheet
Format: Landscape (Word/Outlook-ready)
VIKING-PH125 benchtop pH meter
Instrument
VIKING-PH125 · COLO.Science
Address (HQ)
Polje ob Sotli 4
SI-3255, Slovenia
Contact
Email: sales@colo.si
Phone: +386 64 222 724
COLO.Science logo VIKING-PH125 · Technical Specification
Document ID: COL-TEC-VIKING-PH125-EN
Version: Landscape
Informational technical sheet · Non-binding · Controlled electronic document

VIKING-PH125 · professional benchtop pH meter technical specification sheet

pH -2.00 → 20.00 mV -2000.0 → 2000.0 Rel.mV mode Temp -30.0 → 105°C 0.01 pH resolution IP? (desktop) — 0.01 pH grade / Routine analytical workflows

📋 general & performance specifications

instrument identity
modelVIKING-PH125
grade0.01 pH
brand / lineCOLO.Science · COLO Lab Experts
instrument typeProfessional benchtop pH / mV / ORP / Temperature meter
intended useHigh‑precision pH, mV and ORP measurements in research, QC, education, environmental, pharmaceutical and food laboratories.
pH measurement
pH range-2.00 to 20.00 pH
resolution0.01 pH
accuracy±0.01 pH
calibration pointsup to 5 (1‑5 points), user‑settable
buffer groups5 groups, 25 kinds of buffers (auto recognition), supports custom buffers
electrode diagnosticsslope preview, graphic calibration curve, automatic display of slope and usage status
mV / ORP measurement
mV range-2000.0 to 2000.0 mV
resolution0.1 mV
accuracy±1 mV (±0.05% FS)
modesmV and Rel.mV (relative mV) selectable
temperature measurement
temperature range-30.0 to 105.0 °C (ATC / MTC)
resolution0.1 °C
accuracy±0.2 °C
measurement workflow & data
reading modesAuto Read, Timed, Continuous; dynamic curve display (pH vs No. / mV vs No.)
reading promptsStabilization icon, Reading/Stable status
endpoint modesAutomatic / Manual (selectable)
temperature compensationATC, MTC
data storage1000 measurements (GLP‑compliant)
data analysisstatistics, review, compare, preserve
power‑off protectionyes, data never lost
inputs, display & protection
pH electrode inputBNC, impedance >3×10¹² Ω
temperature probe inputCinch, NTC 30 kΩ
display5.0″ color touchscreen, 0.01‑grade display
outputsRS‑232, USB (optional printer)
power & physical
powerExternal adapter 9‑12 V DC
dimensionsNot specified (similar to PH150: 250 × 165 × 65 mm typical)
housingBench top housing

⚙️ key instrument features

5.0″ color touchscreenIntuitive touch operation, 0.01‑grade display, dynamic curve (pH/mV vs No.).
Multi‑point calibration (1‑5)5 buffer groups / 25 buffers auto‑recognition; user‑settable 5 points per group.
Flexible reading modesAuto‑Read, Timed, Continuous; 2 endpoint options (Auto/Manual).
GLP data management1000 sets with statistics, review, compare, preserve; automatic display of slope and usage status.
Electrode diagnosticsSlope preview and graphic calibration curve.
USB & RS‑232Connect to PC or optional printer for data export.
Power‑off protectionData never lost even when power is removed.

🧪 typical laboratory applications

research & development (routine pH measurement)
pharmaceutical QC (buffer validation, stability studies)
food & beverage (critical acidity control, fermentation)
environmental monitoring (water, wastewater, soil extracts)
academic teaching (electrochemistry basics)
industrial process control (chemical, metallurgical)

📦 included / typical delivery (reference)

  • VIKING-PH125 benchtop pH meter
  • 3‑in‑1 pH composite electrode
  • pH buffer solutions (4.01, 7.00, 10.01)
  • Electrode holder & base
  • External AC adapter (9‑12 V)
  • Quick start guide

🧩 options & notes

printer Optional printer available for hard‑copy GLP reports via RS‑232.
electrode selection Choose from COLO’s wide portfolio for specific sample types (pure water, viscous, organics).
calibration practice Use fresh buffers and maintain temperature consistency for best accuracy; up to 5 points.
software Optional data transfer software for PC connection (USB / RS‑232).

🔬 practical operation notes

topicrecommendationnote
calibration Use 3‑5 points for critical work; monitor slope (95‑105%) Automatic buffer recognition for 25 buffers / 5 groups; store electrode data for traceability
temperature Always use ATC probe for accurate pH; for MTC, measure sample temperature separately ATC range: -30…105°C
electrode care Rinse with distilled water; store in 3 M KCl; clean periodically Prevents drift and prolongs life
data export Use USB or RS‑232 for transfer to PC or optional printer GLP‑compliant reports with date/time stamp
📄 reference PDF: VIKING-PH125.pdf
🧪 application guidance: workflow‑based electrode & buffer selection
🛠️ maintenance: electrode cleaning & periodic inspection
🧾 procurement: binding spec = quotation package

📌 Contact & Support

Headquarters address
Polje ob Sotli 4
SI-3255, Slovenia
Application guidance: tell us your sample type, required accuracy, and throughput.
We will propose the matching electrode configuration and accessories for your workflow.
Quick contact
Web: colo.si
PDF Tech Spec: VIKING-PH125.pdf
Email: sales@colo.si
Knowledge hub: COLO.Science
Manufacturer & configuration notice (important):
Specifications in this document are provided for general reference and may represent a typical configuration. COLO reserves the right to change technical specifications without notice.

For procurement and tender purposes, the only valid and binding specification is the official COLO quotation and the accompanying technical specification that is engineering-approved.
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