Specifications HI98143-01 • HI98143-04 • HI98143-20 • HI98143-22 Range 0 to 14 pH; 0 to 10 mS/cm Accuracy (@25°C/77°F) ±0.5% f.s. pH; ±2% f.s. EC Calibration manual, 2 point, through trimmers: pH: offset and slope trimmers; EC: 0 and 5 mS/cm trimmers EC Temp. Compensation automatic, 0 to 60°C (32 to 132°F) with β=2%/°C pH Electrode HI1001 pH electrode (suggested, not included), HI1283 matching pin (not included) EC Probe HI3001 (not included) with cell constant 2.1 Casing IP54 Power Supply 12-24 VDC Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Dimensions 160 x 105 x 31 mm (6.3 x 4.1 x 1.2’’) Weight 280 g (9.9 oz.) Ordering Information All HI98143 models are supplied with instructions. Choose your configuration HI98143-01 pH/EC transmitter with 0-1 V isolated output HI98143-04 pH/EC transmitter with 0-4 V isolated output HI98143-20 pH/EC transmitter with 4-20 mA isolated output HI98143-22 pH/EC transmitter with 4-20 mA isolated output (specific for HI8000 controllers) HI98143 pH and EC Transmitter with Galvanic Isolated Output • ATC · Automatic temperature compensation Connectivity • PC compatible The HI98143 series is designed to accept signals directly from a pH electrode and a conductivity probe at the same time. Direct connection of the probes to the transmitter assure a positive electrical connection with no signal loss. This transmitter is ideal for remote process control applications. Four models are available, transmitting a 0-1 V, 0-4 V or 4-20 mA signal. The output signals are proportional to the input signals but independent of changes in load or cable capacitance. Compensation for the effects of temperature for EC measurements are performed by the transmitters’ Automatic Temperature Compenstion circuitry. The transmitter can be connected to any pH or conductivity controller, recorder, PC or any data monitoring device that accepts 0 to 1 V, 0 to 4 V or 4 to 20 mA input. HI 98143 is an ideal tool for applications that require the monitoring of both pH and conductivity at the same time. pH solutions begin on page 2.158; EC solutions begin on page 5.34 15 Process Instrumentation 15.105 www.hannainst.com | transmitters
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