MULTI 3400i MULTI-PARAMETER METERS
Multi-parameter meter for monitoring pH, oxygen, and conductivity
FEATURES:
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Multi-parameter Meters Product Description
The compact precision Multi 3400i Multi-parameter Meters enable you to carry out pH measurements, dissolved oxygen (DO) measurements and conductivity measurements quickly and reliably. The Multi 3400i Multi-parameter Meters provide the maximum degree of operating comfort, reliability and measuring certainty for all applications. The multi-parameter meter is hose-proof with battery or optional AC adapter and is optimally suited for use in the field, in laboratories, or at production sites.
The Multi 3400i Multi-parameter Meters have several useful features including an energy saving feature to avoid unnecessary battery depletion. The energy saving feature switches the multi-parameter meter off if no key has been pressed for an hour. The multi-parameter meter can perform pH measurements with or without a temperature sensor or by using the conductivity or oxygen probe’s built in temperature sensor. The multi-parameter meters recognize which sensors are connected and automatically switch to the correct mode for the temperature measurement. The multi-parameter meter’s AutoRead function (drift control) checks the stability of the measurement signal.
pH/Oxi or pH/Cond Multi-parameter Meters
WTW multi-parameter meters stand for precise multi-parameter measuring technology. The pH/Oxi 3400i multi-parameter meter for the determination of pH, oxygen and temperature and the pH/Cond 3400i multi-parameter meter for the determination of pH, conductivity and temperature are favorably-priced alternatives to the single parameter instruments for applications which require the measurement of several parameters. The multi-parameter meters are hose-proof and also meet the requirements of IP 66. Kits include a professional case with sample beakers, multi-parameter meter, pH electrode and oxygen or conductivity sensor, STH 320 stand and calibration and maintenance supplies.
TetraCon® 325 Conductivity Probe
The TetraCon® 4-electrode system sets a new standard for professional conductivity measurements. In comparison with conventional measuring cells with 2 electrodes, the TetraCon® 325 conductivity cell offers numerous technical advantages:
- Highly accurate and linear because of optimized cell geometry
- Extremely large measuring range with just one cell
- Long-term cell constant stability with high-quality abrasion-resistant graphite electrodes
- Built-in temperature sensor as standard
- Smallest immersion depth possible
- Automatic resistance compensation provides accurate measurements even with a dirty electrode
- Measurement not affected by cable influences, polarization effects or contact with side walls
- Robust, unbreakable epoxy body
Multi-parameter Meters Specifications
pH/ORP measurement | Oxygen measurement | Conductivity measurement | |
RANGE/RESOLUTION | pH: -2.00 to 19.99 / 0.01 mV: -1999 to +1999 / 1 Temp.: 23 to 221 °F (-5.0 to 105.0 °C) / 0.1 (0.1) |
O2 Concentration: 0.00 to 19.99 mg/l / 0.01 0.0 to 90.0 mg/l / 0.1 O2 Saturation: 0.00 to 199.9% / 0.1 0.0 to 600% / 1 Temp: 32 to 122 °F (0.0 to 50.0 °C) / 0.1 (0.1) |
Conductivity: 0 to 1999 uS/cm / 1 0.00 to 19.99 mS/cm / 0.01 0.0 to 199.9 mS/cm / 0.1 0 to 500 mS/cm / 1 Salinity: 0.0 to 70.0 according to the IOT table / 0.1 Temp: 23 to 221 °F (-5.0 to 105.0 °C) / 0.1 (0.1) |
PRECISION (+ 1 DIGIT) | pH: + 0.03 (+2 pH units around the calibration point) mV: + 1 Temp: + 0.1 |
O2 Concentration: + 0.5 % of measured value at ambient temperature +41 to +86 °F (+5 to +30 °C) O2 Saturation: + 0.5 % of measured value when measuring in the range of + 10 K around the calibration temperature Temperature Compensation: <2% at +32 to +104 °F (+0 to +40 °C) Temp °C: + 0.1 |
Conductivity: + 0.5 % of value Salinity: + 0.1 from +41 to +77 °F (+5 to +25 °C) + 0.2 from +77 to +86 °F (+25 to +30 °C) Temp: + 0.1 |
TEMPERATURE COMPENSATION | Automatic: 23 to 221 °F (-5 to +105 °C) Manual: -4 to 266 °F (-20 to +130 °C) |
32 to 122°F (0 to +40 °C) <2% from 32 to 104 °F (0 to +40 °C) |
Non-linear function for ultrapure and natural waters to EN 27 888 |
REFERENCE TEMPERATURE | N/A | N/A | 68 °F/77 °F (20 °C/25 °C) selectable |
Memory: 500 Datasets
Serial Interface:
Baud Rate: Adjustable: 1200, 2400, 4800, 9600 Baud
Type: RS232, data output
Data Bits: 8
Stop Bits: 2
Parity: None
Handshake: RTS/CTS + Xon/Xoff
Cable Length: Max. 15m
Ambient Conditions:
Storage: -13 to +149 °F (-25 to +65 °C)
Operation: 14 to 131 °F (-10 to +55 °C)
Climatic Class: 2
Power:
Batteries: 4 x 1.5 V alkali-manganese, type AA
Operational Life: approx. 3000 operating hours
Plug-in Power Supply:
Input: 100 to 240 V ~ / 50 to 60 Hz / 400 mA
Output: 9 V = / 1.5 A
IP Rating: IP-66
Certifications: cETLus, CE
Electrical Safety: Protective class III
Weight: 0.7 lbs (0.3 kg) (without plug-in power supply)
Size: 6.8×3.1×1.5 in (172 x 80 x 37 mm)
CellOx® 325 Probe
Electrode material: Gold (Working), Lead (Counter)
Shaft material: POM
Measuring range: 0 to 50 mg/l O2, 0 to 600% O2
Temperature range: 32 to 122 °F (0 to 50 °C)
Min/max immersion depth: 2.4in to 65ft (6cm to 20m) depending on cable length
Shaft length: 7.38 in (187.5 mm)
Diameter: 0.70 in (17.5 mm)
Weight: 6 oz (170 g)
TetraCon® 325 Probe
Electrode material: Graphite
Shaft material: Epoxy
Shaft length: 4.72 in (120 mm)
Cell constant: K = 0.475 cm-1
Diameter: 0.60 in (15.3 mm)
Measuring range: 1 uS/cm to 2 S/cm
Temperature range: 32 to 212 °F (0 to 100 °C)
Min/max immersion depth: 1.4/4.7 in (36/120mm)
Multi 3400i Kit Multi-parameter Meter (PN# 2F30-104B22) Includes Multi 3400i, SenTix® 41-3 pH electrode, CellOx 325-3 oxygen electrode, TetraCon 325-3 conductivity sensor, Tech. buffers 4 and 7, 3 M KCl, cleaning solution, 3 exch. membr. heads, electrolyte, abrasive foil, cond standard (1413 µS/cm) All sensors have 9.8 ft (3 m) of cable. |
pH/Cond 3400i Set Multi-parameter Meter (PN# 2E30-101B02) Includes pH/Cond 3400i, SenTix® 41-3 pH electrode, TetraCon 325-3 conductivity sensor, beaker, cond standard (1413 µS/cm) All sensors have 9.8 ft (3 m) of cable. |
pH/Oxi 3400i Set Multi-parameter Meter (PN# 2D30-101B20) Includes pH/Oxi 3400i, SenTix® 41-3 pH electrode, CellOx 325-3 oxygen sensor, 3 exchange membrane heads, cleaning solution, abrasive foil, technical buffers 4 and 7, 3 M KCl All sensors have 9.8 ft (3 m) of cable. |
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