Description
HI 253 and HI 254 pH/ORP bench meters are ideal for very accurate and precise measurements in all laboratory settings. Both meters can store up to 50 data sets in non-volatile memory which can be downloaded to a PC.
These instruments also have GLP features so, at any time, the user can recall the calibration data.
HI 253 can perform ion-selective (ISE) measurements directly in ppm. Chose from our newly developed line of specific ion sensors for your specific application.
pH calibration with HI 254 can be customized with up to 5 points - selected from 7 memorized buffers - to provide a very accurate calibration curve even when testing difficult samples, where very wide differences in pH may occur during the same process.
HI 253 and HI 254 are each supplied with a pH electrode, temperature probe for automatic compensation during pH measurements and ready-to-use calibration solutions.
Specifications
| Range | pH | -2.0 to 16.0 pH; 2.00 to 16.00 pH; -2.000 to 16.000 pH |
| Range | mV | ±699.9 mV; ±2000 mV |
| Range | Temperature | -9.9 to 120.0°C |
| Resolution | pH | 0.1 pH; 0.01 pH; 0.001 pH |
| Resolution | mV | 0.1 mV (±699.9 mV);
1 mV (±2000 mV) |
| Resolution | Temperature | 0.1°C |
| Accuracy | pH | ±0.1 pH; ±0.01 pH; ±0.002 pH |
| Accuracy | mV | ±0.2 mV (±699.9 mV);
±1 mV (±2000 mV) |
| Accuracy | Temperature | ±0.4°C |
| Relative mV Offset Range | | ±2000 mV |
| pH Calibration | | automatic, 1, 2, 3, 4 or 5 point with 7 memorized buffers
(pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) |
| Temperature Compensation | | Automatic (with HI 7669/2W probe) or manual from -9.9 to 120°C |
| pH Electrode | | HI 1131B, glass-body, double junction, refillable,
BNC connector, 1 m (3.3') cable (included) |
| Temperature Probe | | HI 7669/2W with 1 m (3.3') cable (included) |
| Input Impedance | | 1012 Ohm |
| PC Connection | | RS232 opto-isolated serial port |
| Power Supply | | 12 Vdc adapter (included) |
| Environment | | 0 to 50°C (32 to 122°F); RH max 95% |
| Dimensions | | 240 x 182 x 74 mm (9.4 x 7.2 x 2.9") |
| Weight | | 1.1 kg (2.4 lb.) |
Accessories
To View or Buy Any Accessory, Search For Item By Name (Click and Paste).
| Electrodes |
| HI 11X1 Series | Laboratory Combination pH and ORP Electrodes |
| HI 7669/2W | Temperature Probe |
| Solutions |
| HI 7004L | 4.01 pH Buffer Solution
1 x 500 mL bottle |
| HI 7007L | 7.01 pH Buffer Solution
1 x 500 mL bottle |
| HI 7010L | 10.01 pH Buffer Solution
1 x 500 mL bottle |
| HI 77400P | Combination pH Buffer Kit 4.01 & 7.01 pH |
| HI 70300L | Electrode Storage Solution
1 x 500 mL bottle |
| Accessories |
| HI 710005 | Voltage adapter from 115V to 12 Vdc (USA plug) |
| HI 710006 | Voltage adapter from 230V to 12 Vdc (European plug) |
| HI 92000 | Windows® Compatible Software for Logging Instruments,
Photometers and Turbidity Meters |
| HI 920010 | Cable for PC Connection, 9 to 9-pin |
| HI 76404 | Electrode Holder |
Order Info
HI 254 is supplied with HI 1131B pH electrode, HI 7669/2W temperature probe, pH 4 and pH 7 buffer sachets (20mL each), electrode refilling solution, electrode holder, 12 Vdc power adapter and instructions.
Manufacturer: N/A
SKU: HI254
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