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Catalog Number 6120118
Digital PC sc and RC sc ¾-inch
Combination pH/ORP Sensor
USER MANUAL
October 2005, Edition 4
©Hach Company, 2004–2005. All rights reserved. Printed in the U.S.A. eac/dp
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Table of Contents Section 1 Specifications......................................................................................................................................... 5 Section 2 General Information ............................................................................................................................... 7 2.1 Safety Information .......................................................................................................................................
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Table of Contents 7.3 Troubleshooting the pH or ORP Sensor ............................................................................................................35 Section 8 Replacement Parts and Accessories..................................................................................................37 8.1 Replacement Items, Accessories, and Reagent and Standards .......................................................................37 Section 9 How to Order............................
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Section 1 Specifications Specifications are subject to change without notice. Table 1 Combination pH and ORP Sensor Specifications Components Corrosion-resistant materials, fully-immersible probe with 4.6 m (15 ft) cable Measuring Range (pH) 0 to 14 pH Measuring Range (ORP) –2000 to +2000 mV Measuring Range (Temperature) 0 to 105 °C (32 to 221 °F) Probe Operating Temperature 0 to 105 °C (32 to 221 °F) Probe Storage Temperature –30 to 70 °C (–22 to 158 °F); 0 to 95% relative humidity, non-conden
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Section 2 General Information 2.1 Safety Information Please read this entire manual before unpacking, setting up, or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment. To ensure that the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that specified in this manual. This product is acceptable for use in a H
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General Information 2.2 General Sensor Information Optional equipment, such as mounting hardware for the probe, is supplied with instructions for all user installation tasks. Several mounting options are available, allowing the probe to be adapted for use in many different applications. 2.2.1 Sensor Body Styles Combination pH and ORP sensors are available in three body styles: � Convertible Body Style (Figure 1 and Figure 2)— has ¾-in. NPT threads at both ends of the body for mounting in an
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General Information Figure 3 Insertion Style Sensor with Domed Electrode 22.2 mm (0.875 inches) 149.9 mm (5.9 inches) Figure 4 Sanitary-style Sensor 22.2 mm (0.875 inches) 49.1 mm (1.96 inches) 22 mm (0.87 inches) 88.9 mm (3.5 inches) 187.3 mm (7.37 inches) 2.3 The Digital Gateway The digital gateway was developed to provide a means to use existing analog sensors with the new digital controllers. The gateway contains all the necessary software and hardware to interface with the controller and
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Section 3 Installation DANGER Only qualified personnel should conduct the tasks described in this section of the manual. DANGER Seul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel. The Combination pH/ORP Sensor can be used with either an sc100 or sc1000 controller. Refer to section 3.2 on page 13 for sc100 installation instructions and section 3.3 on page 16 for sc1000 installation instructions. The sc sensor should be wired to the dig
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Installation Figure 5 Proper Wire Preparation and Insertion 1 2 1. Strip ¼-inch of insulation. 2. Seat insulation against connector with no bare wire exposed. Figure 6 Wiring and Assembling the Digital Gateway 1 2 3 4 5 6 7 METAL BRAID RED WHT CLEAR BLU 8 9 10 11 12 1. Digital gateway front 7. Cord grip 2. O-ring 8. From sensor 3. Sensor wire connector 9. Insert wires into connector according to Table 3. Use the included 2 mm screwdriver (Cat. No. 6134300) to secure connections. 4. Digital gate
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Installation Table 3 Wiring the Digital Gateway (Cat. No. 6120800) 1 Sensor (wire color) Sensor Signal without Ground Rod Sensor Signal with Ground Rod Digital Gateway 2 3 Metal Braid Jumper 2 from J3-1 to J3-3 Ref J3-1 White Temp + Temp + J3-2 Red Temp – Temp – J3-3 Blue Ref Solution Ground J3-4 Clear Active/Measuring Active/Measuring J1-5 not used not used not used J1-6 1 Some applications require the use of an external ground rod with the combination electrode. Use this wiring scheme for the
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Installation Figure 7 Attaching the Digital Gateway using the Quick-connect Fittings 3.2.1.2 Hard-wiring the Digital Gateway to the sc100 Important Note: Hard-wiring the digital gateway to the sc100 is not an approved method for Class 1, Division 2 Hazardous Locations. 1. Disconnect power to the controller if powered. 2. Open the controller cover. 3. Disconnect and remove the existing wires between the quick-connect and terminal strip J5, see Figure 8 on page 15. 4. Remove the quick-connec
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Installation Table 4 Wiring the Sensor at Terminal Block J5 Terminal Number Terminal Designation Wire Color 1 Data (+) Blue 2 Data (–) White 3 Service Request No Connection 4 +12 V dc Brown 5 Circuit Common Black 6 Shield Shield (grey wire in existing quick disconnect fitting) Figure 8 Hard-wiring the Digital Gateway J1 J1 S1 S1 J3 J3 J2 J2 1 1 1 1 + + + + + + + + DATA DATA DATA DATA DATA DATA DATA DATA 2 2 2 2 – DATA – DATA – DATA – DATA SER SER SER SER SER SER SER SERVICE REQUEST VICE REQU
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Installation 3.2.2.1 Attaching the Digital Gateway with a Quick-Connect Fitting in a Hazardous Location The digital gateway is supplied with a keyed quick-connect fitting for easy attachment to the controller, see Figure 7 on page 14. For Hazardous Locations, a connector safety lock (Cat. No. 6139900) must be installed. Retain the connector cap to seal the connector opening in case the sensor must be removed. 1. Remove the connector cap from the sc100 controller. Retain the connector cap to s
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Installation 3.4 Mounting the Digital Gateway The digital gateway is supplied with a mounting clip for mounting to a wall or other flat surface. See Figure 10 for dimensions. Use an appropriate fastener to secure it to the wall, see Figure 11. After the sensor is wired to the digital gateway and the two halves are threaded together, place the mounting clip over the center of the digital gateway and squeeze the clip together to secure. Figure 10 Digital Gateway Dimensions 34.29 mm 184.15 mm (
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Section 4 User Interface and Navigation 4.1 Using the sc100 Controller The front of the controller is shown in Figure 12. The keypad consists of the eight keys described in Table 5. Figure 12 Front of the Controller 1 5 sc100 6 2 3 7 4 1. Instrument display 5. IrDA window 2. BACK key 6. HOME key 3. MENU key 7. ENTER key 4. RIGHT, LEFT, UP, and DOWN keys Table 5 Controller Key Functions/Features Number Key Function 2 Moves back one level in the menu structure. Moves to the main menu from other
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User Interface and Navigation 4.1.1 Controller Display Features When a sensor is connected and the controller is in measurement mode, the controller automatically identifies the connected sensors and displays associated measurements. The display will flash on startup, when a sensor error has occurred, and when a sensor is being calibrated. An active system warning will cause the warning icon (a triangle with an exclamation point inside) to be displayed on the right side of the display. See Fi
