VIKING-M500A Benchtop Multi-Parameter Analyzer (pH / EC / ISE / Temp.)
Note: Supplied with E-301-QC 3-in-1 pH composite electrode, DJS-1VTC EC electrode, NIST buffers 4.01 / 7.00 / 10.01 (50 mL each), 1413 μS/cm EC standard (50 mL), REX-6 electrode stand and touch pen.
Highlights: 7.0″ high-contrast touch LCD, GLP 1000 sets/parameter, 1–6 point calibration (pH/ISE), ATC/MTC, auto/timed/continuous read, USB & RS-232, IP54.
Features
General Features
- 7.0″ color high-contrast LCD touchscreen.
- Intelligent OS with user, calibration, method and data management.
- Multi-reading modes: auto-read, timed-read, continuous-read.
- Automatic/Manual temperature compensation (ATC/MTC) for accurate results.
- Data storage: 1000 sets per parameter (GLP-compliant) with review/compare/recalculate tools.
- USB or RS-232 communication.
- Factory reset to default options.
- IP54 water-resistant housing.
pH Functions
- 1–6 point calibration with Standard Recognition.
- Selectable buffer groups: DIN, NIST, USA, MERK, JIS, GB; custom buffer group supported.
- Automatic electrode diagnosis with slope and offset display.
Ion (ISE) Functions
- 1–6 point calibration.
- Selectable units: μg/L, mg/L, g/L, mmol/L, pX, ppm, ppb.
- Measurement modes: Direct Reading, Standard Addition, Sample Addition, GRAN.
- 10+ built-in methods (F−, Cl−, Br−, I−, NO3−, BF4−, NH4+, K+, Na+, Ca2+, Cu2+, Pb2+, Ag+ etc.) + user methods.
Conductivity (EC) Functions
- 1–5 point calibration with Standard Recognition.
- Settable parameters: cell constant; reference temperature (5/10/15/18/20/25 °C); temperature coefficient; TDS factor.
- Temperature compensation types: none, linear, pure water.
Included
- E-301-QC 3-in-1 pH composite electrode
- DJS-1VTC EC electrode
- NIST pH standards 4.01 / 7.00 / 10.01 (50 ml each)
- EC standard 1413 μS/cm (50 ml)
- REX-6 electrode stand
- Touch pen
Technical Specifications
Overview
Model | VIKING-M500A (factory model: M500T-A) |
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Parameters | pH / EC / ISE / Temp. (mV / ORP / pX / Resistivity / TDS / Salinity) |
pH
Range | −2.000 to 20.000 pH |
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Resolution | 0.1, 0.01, 0.001 pH |
Accuracy | ±0.002 pH |
Calibration points | Up to 6 |
Standard customization | Yes |
Calibration reminder | Yes |
Standard recognition | NIST, GB, DIN, USA, MERK, JIS |
Slope limit | Yes |
mV / ORP
Range | −2000.00 to 2000.00 mV |
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Resolution | 0.1, 0.01 mV |
Accuracy | ±0.1 mV or ±0.03% of reading (whichever is greater) |
EH ORP mode | Yes |
ORP calibration | 1 custom point (relative mV) |
pX
Range | −2.000 to 20.000 pX |
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Resolution | 0.1, 0.01, 0.001 pX |
Accuracy | ±0.002 pX |
Calibration points | Up to 6 |
ISE (Ion-Selective)
Range | 1.000e−9 to 9.999e+9 |
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Units | mol/L, mmol/L, g/L, mg/L, μg/L, ppm, ppb |
Resolution | Up to 4 significant digits |
Accuracy | ±0.3% |
Calibration points | Up to 6 |
Conductivity / Resistivity / TDS / Salinity
Conductivity range | 0.000 μS/cm to 2000 mS/cm |
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Resolution (EC) | min 0.001 μS/cm (varies with range) |
Accuracy (EC) | ±0.5% FS |
Reference temperature | 5, 10, 15, 18, 20, 25 °C |
EC calibration | Up to 5 points |
Calibration reminder | Yes |
Standard recognition | 10 μS/cm, 84 μS/cm, 500 μS/cm, 1413 μS/cm, 12.88 mS/cm; 146.5 μS/cm, 1408 μS/cm, 12.85 mS/cm, 111.3 mS/cm |
Resistivity | 5.00 Ω·cm to 100.0 MΩ·cm (min res. 0.01 Ω·cm) |
TDS | 0.000 to 1000 ppt (min res. 0.001 ppm; range-dependent) |
Salinity type | %NaCl |
Salinity range | 0.0 to 80.0 ppt |
Salinity resolution | 0.1 ppt |
Salinity accuracy | ±1 ppt |
Temperature & Measurement
Temperature range | −10 to 135 °C (14 to 275 °F) |
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Units | °C, °F |
Resolution | 0.1 |
Accuracy | ±0.1 °C |
Reading modes | Auto (Fast/Medium/Slow), Timed, Continuous |
Prompts | Reading, Stable, Locked |
Temp. compensation | ATC, MTC |
Memory & Data
Data storage | 1000 groups |
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GLP features | Yes |
Log management | Yes |
Inputs & Outputs
pH electrode | BNC (Q9) |
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DO with temp. probe | 4-pin aviation connector |
EC with temp. probe | 5-pin aviation connector |
USB | USB 2.0 flash device; PC; scanner |
RS-232 | Printer; auto-sampler |
Display & Power
Backlight | Yes |
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Auto shutdown | 1–60 min, or off |
IP rating | IP54 |
Date & time | Yes |
General
Power | AC adapter, 100–240 V AC input, 24 V DC output |
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Dimensions | 220 × 195 × 68 mm |
Net weight | 950 g (2.09 lb) |
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