Waterproof Hand-held Meters for pH/Redox/Temperature Conductivity, TDS, Salinity, Temperature
Highlights
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Applications
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Features SD 300 pH
Min / Max Value Memory highest and lowest measured value is saved.
Auto Hold freeze and display measurement.
Auto Power Off if unused, the meter automatically switches off after a selected period (0 to 120 min, or deactivated)
Additional Display for pH Electrode and Battery Bar graph display
Low Battery Display “BAT” Automatic Temperature Compensation
Automatic Temperature Compensation (ATC) in pH mode (in the range of 0 – 105 °C) when the temperature probe is connected. Temperature can be input manually, when the temperature probe is not attached.
pH Calibration Automatic Buffer Recognition. Permissible electrodes’ data: Asymmetry: ±55mV/Slope:45…62mV/pH The condition of pH Electrode is checked at each calibration. 1, 2 or 3 point calibration with Lovibond® Standard Buffer, DIN 19266 Buffer or any manually entered Buffer values.
Redox Measurement (ORP) 2 options: “mV” Standard Redox or mV measurement „mVH” Conversion to hydrogen systems according to DIN38404 Part 6
rH Measurement The rH value is calculated from a measured Redox value and a manually input pH value
Delivery Content
Order Code: 724600 SD 300 pH without electrode, with batteries, protective armouring, instruction manual, guarantee sheet
Order Code: 724610 SD 300 pH (SET 1) instrument, batteries, pH/temp. plastic-electrode type 230, pH-buffer-set (pH 4.00/7.00/10.00), in case, manual, guarantee sheet
Order Code: 724611 SD 300 pH (SET 2) as SET1, but with pH / temperature plastic-electrode type 225, temperature sensor Pt1000, manual, guarantee sheet
Assessories
| Order code | Article |
| 721231 | pH/temp.-electrode type 231 plastic/gel/temperature NTC30kOhm (SET 1) |
| 721226 | pH-electrode plastic/gel-type 226 (SET 2) |
| 721235BNC | pH-electrode glass/gel-type 235 |
| 721240BNC | Redox-electrode plastic-type 240 |
| 72 12 45 | Pt1000 Temperature sensor (SET 2) |
| 41 86 09 | KCl–solution, 3 molar saturated with AgCl, 100 ml |
| 72 12 47 | pH buffer solution 4,00 (25 °C) red, 90 ml |
| 72 12 48 | pH buffer solution 7,00 (25 °C) yellow, 90 ml |
| 72 12 49 | pH buffer solution 10,00 (25 °C) blue, 90 ml |
| 72 12 50 | pH buffer-set 4.00/7.00/10.00 (25°C) |
| 72 12 52 | pH buffer 4.00 (25°C) 1 litre |
| 72 12 54 | pH buffer 7.00 (25°C) 1 litre |
| 72 12 56 | pH buffer 10.00 (25°C) 1 litre |
| 19 50 70 | Redox calibration solution, 470 mV, 100 ml |
| 72 46 20 | USB 300 cable, for connection to a computer |
| 72 46 25 | GSOFT 3050 data transmission software with logger for setting, reading and printing of stored data |
| 72 50 60 | Case with foam inlet |
Measuring ranges |
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| pH | – 2,000 … 16,000 pH |
| Redox /mV | – 2000,0 … 2000,0 mV |
| Temperature | – 5,0 … + 150,0 °C + 23,0 … + 302,0 °F |
| rH | 0,0 … 70,0 rH |
Accuracy |
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| pH | ± 0,005 pH |
| Redox / mV | ± 0,05 % FS (mV or mVH) |
| Temperature | ± 0,2 °C (- 5,0 … + 100,0 °C) |
| rH | ± 0,1 rH |
Connections |
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| pH, Redox | BNC female connector, compatible to standard BNC plugs and waterproof BNC plugs, additional banana-jack (4 mm) for separate reference electrode input resistance: 1012 Ohm |
| Temperature | 2 banana jacks (4 mm) for temperature probe (Pt1000 or NTC 10K) |
| Interface / Supply | 4-pole bayonet connector for serial interface and supply (with accessory USB 300) |
| Display | two 4.5 – digit seven-segment display (15 mm and 12 mm) |
pH Calibration |
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| Automatically | 1, 2 or 3 point calibration, Lovibond® Standard Buffer or Buffer to DIN19266 |
| Manually | 1, 2 or 3 point calibration |
| Protection class | IP67 (housing and connections) |
| Dimensions | 160 x 86 x 37 mm (H x W x D) incl. protection cover |
| Weight | 250 g incl. battery and protective armouring |
| Housing | impact resistant PA 6 G B30 housing with pop-up clip |
| Power Supply |
2 x AAA-battery (included) power consumption: < 1.0 mA |
| Battery life | 1000 hours |
Features SD 320 Con
Min / Max Value Memory highest and lowest measured value is saved
Auto Hold freeze and display measurement
Auto Power Off if unused, the meter automatically switches off after a selected period (0 to 120 min, or deactivated)
Low Battery Display “BAT”
Automatic temperature compensation As conductivity depends strongly on temperature, each conductivity value is only valid at the corresponding temperature. Therefore the device supports temperature compensation, i.e. referring the conductivity to a reference temperature (selectable: 20 °C or 25 °C).
Salinity measurement Salinity means the sum of amount of all dissolved salts in water. The unit is g / kg.
TDS measurement (total dissolved solids) TDS means the mass concentration of dissolved media in a liquid. The unit is mg/l.
Delivery Content
Order Code: 72 47 00 SD 320 Con (SET 1)
instrument, batteries, conductivity cell LC 12 (measuring range 0 – 200 mS), manual, guarantee sheet in case
Order Code: 72 47 20 SD 320 Con (SET 2) instrument, batteries, conductivity cell LC 16 (measuring range 0 – 1000 mS), manual, guarantee sheet in case
Order Code: 72 47 10 SD 320 Con (Set 3)
instrument, batteries, pure water electrode
(measuring range 0 – 100 mS/cm) manual, warranty information in case
Assessories
| Order code | Article |
| 19805040 | Conductivity cell LC 12, measuring range 0 – 200 mS |
| 19805040 | Conductivity cell LC 16, measuring range 0 – 1000 mS |
| 72 22 50 | Calibration solution 1413 µS/cm |
| 72 46 20 | USB 300 cable, for connection to a computer |
| 72 46 25 | GSOFT 3050 data transmission software with logger for setting, reading and printing of stored data |
| 72 50 60 | Case with foam inlet |
Measuring ranges |
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| Number | 5 |
| Smallest range | 0,000 … 5,000 μS / cm or 0,0 … 500,0 μS / cm ** |
| biggest range | 0 … 5000 μS / cm * or 0 … 1000 mS / cm ** |
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Resistivity |
0.005 … 500.0 kOhm / cm (depends on cell constant) |
| TDS |
0 … 5000 mg/l (depends on cell constant) |
| Salinity |
0.0 … 70.0 (g salt / kg water equals PSU = Practical Salinity Unit) |
| Temperature |
– 5.0 … + 100.0 °C, Pt1000 or NTC (10 kOhm) |
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Supported cell constants |
4,000 … 15,000 / cm-1 0,4000 … 1,5000 / cm-1 0,04000 … 0,15000 / cm-1 0,004000 … 0,015000 / cm-1 |
Accuracy |
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Conductivity |
± 0.5 % of reading |
| Temperature | ± 0,2 °C (- 5,0 … + 100,0 °C) |
Connection |
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Conductivity, Temperature |
1 x 7 pole bayonet connector for connection of different measuring cells |
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Supported temperature sensors |
Pt1000 or NTC (10k) |
| Interface / ext. supply |
4-pole bayonet connector for serial interface and supply (with accessory USB 300) |
| Display |
two 4.5 – digit seven-segment display (15 mm and 12 mm) |
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Protectionclass |
IP67(housingandconnections) |
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Dimensions |
160x86x37mm(WxHxD) incl. protection cover |
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Weight |
250 g incl. battery and protective armouring |
| Housing |
impact resistant PA 6 G B30 housing with pop-up clip |
| Power supply |
2 x AAA-battery (included) power consumption: < 6,25 mA |
| Battery life | 160 hours |
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depends on cell constant of used electrode |
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