Water Quality Meter with HART communication HQ-300
Overview
The HQ-300 is multiparameter transmitter(1 component can be selected from pH,ORP,dissolved oxygen(DO),fluoride ion*,electrical conductivity and electrical resistivity) with the latest HART communication(protocol revision7).
*Fluoride ion is optional.
Features
| Select one component from the 6 available components.In addition to the general water quality standard parameters of pH, ORP, DO, electrical conductivity and electrical resistivity, fluoride ion concentration measurement, which is a basic parameter of semiconductor effluent treatment, can now be measured in one transmitter. * Fluoride ion is optional. |
| Enables risk reduction when a malfunction occurs.In cases where emergency response is required due to malfunction of the transmitter, risk can be reduced by switching to a replacement transmitter when there are 2 or more transmitters in operation on site. |
| Enables optimized inventory controlWhen multiple types of measurement item are being managed on site, a high level of cost is incurred in keeping an inventory of transmitters in case of malfunction. However, multiparameter transmitters enable you to realize cost-effective inventory control by reducing the need to keep an inventory of transmitters to the bare minimum. |
| Compatible with the latest HART comunication(protocol revision 7)Long tags can be set up to 32 characters in length,improvng the amount of freedom you have to manage transmitter names on site. |
※HART® is a registered trademark of FieldComm Group.
Manufactured by HORIBA Advanced Techno
Specifications
Product name | Water Quality Meter (two-wire transmitter) | ||
|---|---|---|---|
Model | HQ-300 | ||
Measurement item | pH, ORP, Dissolved oxygen, Fluoride ion, Electrical conductivity, Electrical resistivity | ||
Measurement | pH | pH 0 to pH14 | |
range | ORP | -2000mV to 2000 mV | |
Dissolved oxygen | 0mg/L to 20 mg/L | ||
Fluoride ion | 0mg/L to 10000 mg/L | ||
Electrical conductivity | 0μS/cm to 2000μS/cm (0 mS/m to 200mS/m)（Measurement range varies with cell constant.） | ||
Electrical resistivity | 0 MΩ･cm to 20 MΩ･cm(0 kΩ･m to 200 kΩ･m) | ||
Accuracy | pH | Repeatability | Within ±0.03 pH at equivalent input |
Linearity | Within ±0.03 pH at equivalent input | ||
ORP | Repeatability | Within ±5 mV at equivalent input | |
Linearity | Within ±5 mV at equivalent input | ||
Dissolved oxygen | Repeatability | Within ±0.5% of full scale at equivalent input | |
Linearity | Within ±0.5% of full scale at equivalent input | ||
Fluoride ion | Repeatability | Within ±7% of full scale at equivalent input | |
Linearity | Within ±10% of full scale at equivalent input | ||
Electrical conductivity | Repeatability | Within ±0.5% of full scale at equivalent input | |
Linearity | Within ±0.5% of full scale at equivalent input | ||
Electrical resistivity | Repeatability | Within ±0.1% of full scale at equivalent input | |
Linearity | Within ±0.5% of full scale at equivalent input | ||
Analog output | Output type | 4 mA to 20 mA DC | |
Load resistance | 550 Ω maximum (when power supply voltage is 24 V DC) | ||
HART communication | Protocol revision | 7 | |
Burst mode | Not supported | ||
Multi-drop connection | 15 transmitters maximum | ||
Hold input | Contact input | No-voltage “a” contact | |
Operating temperature range | -20℃ to 60℃ (no freezing) | ||
Operating Humidity range | Relative humidity 5 to 90%(no condensation) | ||
Storage temperature | -25℃ to 65℃ | ||
Power supply | Rated voltage | 24V DC (Power-supply voltage range: 21V DC to 32V DC） | |
Power consumption | 0.6 W or less | ||
Structure | Protection class | IP65 | |
Material of case | Aluminum alloy(coated with epoxy-modified melamine resin) | ||
Material of hood and bracket | SUS304(coated with epoxy-modified melamine resin) | ||
External dimensions | 180(W)×155(H)×115(D) mm (excluding brackets) | ||
Schematics
