Product Overview

The HACH DPC2K1A belongs to the Digital Differential Series. Its product type is a Digital Combination pH/ORP Sensor. The product classification is Sensor, Transducer & Probe. The current price for this item is ¥4,850 RMB. The product gross weight is 0.92 kg.

This HACH DPC2K1A provides reliable pH measurement for general industrial applications. The sensor combines pH and ORP capabilities in one durable body. It uses a general purpose glass electrode for standard pH ranges. The PVDF body offers outstanding chemical and thermal resistance. This Digital Combination pH/ORP Sensor works perfectly for water treatment and chemical processing.

Technical Specifications

Measurement Range and Accuracy

The measurement range is 0 to 14 pH. Accuracy reaches 0.1 pH under reference conditions. Most applications fall between 2.5 and 12.5 pH. The general purpose pH glass electrode performs well in this normal range. Some industrial applications need measurement below pH 2 or above pH 12. You should consult Hach Technical Support for these extreme applications.

Body and Electrode Materials

The body material is PVDF (Polyvinylidene Fluoride). PVDF provides excellent resistance to acids, bases, and solvents. The electrode material is a General Purpose Glass pH Electrode. This standard glass works well for most industrial pH measurements. The HACH DPC2K1A uses wetted materials that include PVDF, PTFE double junction, glass electrode, and FKM/FPM O-rings.

Temperature and Pressure Ratings

The operating temperature range is 0 to 105°C. This covers most industrial process conditions. The pressure range reaches 0 to 6.9 bar at 100°C. In imperial units, this is 0 to 100 psig at 212°F. These ratings make the DPC2K1A suitable for a wide range of applications.

Cable and Connection Details

The sensor includes an integral coaxial cable. This cable also contains two conductors for a temperature compensator option. The standard cable length is 4.5 meters (15 feet). The sensor thread size is 0.75 inches. This standard thread fits most industrial adapters and fittings.

Temperature Compensation

Temperature compensation uses a Pt 1000 ohm RTD. This platinum resistance thermometer provides accurate temperature readings. The RTD compensates for pH changes caused by temperature variations. Automatic temperature compensation ensures measurement accuracy across the full 0 to 105°C range.

Signal Transmission Distance

The maximum signal transmission distance is 1000 meters (3280 feet). This long distance requires specific Hach equipment. You need the Hach Digital Gateway, Termination Box, and sc100 Controller. This system allows remote sensor placement far from the control room.

What's Included in the Box

The HACH DPC2K1A package includes several components. You receive the sensor with a 15-foot cable attached. A digital gateway comes included for signal conversion. A 3-foot digital extension cable provides connection flexibility. You also get the product manual for installation guidance.

Installation Guide

Follow these steps to install your HACH DPC2K1A correctly.

1. Prepare Mounting Point: Ensure your process connection has a 0.75-inch female thread. Verify the mounting location allows easy access for maintenance.

2. Attach Sensor: Screw the DPC2K1A into the process fitting by hand. Tighten with a wrench one-quarter turn past hand-tight.

3. Connect Digital Gateway: Plug the sensor cable into the digital gateway. The gateway converts the signal for long-distance transmission.

4. Install Extension Cable: Connect the 3-foot digital extension cable between the gateway and termination box. Ensure the connectors lock securely.

5. Run Cable to Controller: Route the cabling to your sc100 Controller. The maximum distance is 1000 meters when using all Hach components.

6. Power Up: Apply power to the sc100 Controller. The HACH DPC2K1A will automatically begin transmitting digital pH data.

7. Calibrate: Perform a two-point or three-point calibration using standard buffer solutions. Verify the readings match the expected pH values.

Package List

• 1 x HACH DPC2K1A Digital Combination pH/ORP Sensor

• 1 x Integral coaxial cable with temperature compensator conductors (4.5m / 15ft)

• 1 x Hach Digital Gateway

• 1 x Digital extension cable (0.9m / 3ft)

• 1 x Product manual and installation guide

Frequently Asked Questions (FAQ)

1. What is the difference between the DPC2K1A and the DPC1R3A?
The DPC2K1A uses a PVDF body and general purpose glass electrode. The DPC1R3A uses a PPS body and HF-resistant glass electrode. Choose the DPC2K1A for standard chemical applications without hydrofluoric acid.

2. Can the HACH DPC2K1A measure ORP as well as pH?
Yes, this is a combination pH/ORP sensor. It can measure both parameters using the same electrode system.

3. How far can I place this sensor from my controller?
The maximum transmission distance is 1000 meters (3280 feet). You must use the Hach Digital Gateway, Termination Box, and sc100 Controller to achieve this distance.

4. Does the HACH DPC2K1A need a separate temperature probe?
No, the sensor includes a built-in Pt 1000 ohm RTD. This provides automatic temperature compensation without an external probe.

5. What wetted materials does the DPC2K1A use?
The wetted materials include PVDF body, PTFE double junction, general purpose glass electrode, and FKM/FPM O-rings. These materials resist most acids, bases, and solvents.