YOKOGAWA SC210G Conductivity Detector

YOKOGAWA SC210G Conductivity Detector

Equipment foundation and system composition

1. Core positioning and adaptation system

SC210G is a conductivity detection unit that needs to be used in conjunction with a specific analyzer/converter to form a complete detection system. The compatible equipment and corresponding manual information are as follows:

Corresponding manual number for supporting equipment type

FLXA202, FLXA21 2-wire liquid analyzer IM 12A01A02-01E

FLXA402 4-wire converter IM 12A01F01-02EN, IM 12A01F03-01EN, etc

FLXA402T turbidity and chlorine liquid analyzer IM 12A01G01-02EN, IM 12A01G03-01EN, etc

SC450G 4-wire conductivity converter IM 12D08N05-01E

2. Equipment core classification and parameters

SC210G can be divided into two categories based on measurement range, with the core difference in electrode structure and conductivity range, suitable for different solution detection scenarios:

Model Measurement Type Electrode Structure Battery Constant Measurement Range Applicable Scenarios

SC210G-C low range 316 stainless steel 2-electrode coaxial type 0.05 cm ⁻¹ 0-200 µ S/cm low conductivity solution (such as ultrapure water)

SC210G-D medium range glass tube with equidistant 3-ring platinum electrodes (short circuited on both sides and forming a counter electrode in the middle) 5 cm ⁻¹ 200 µ S/cm-20 mS/cm medium high conductivity solution

3. General technical specifications

Temperature and pressure: Normal temperature 0-105 ℃ (polypropylene material bracket is limited to 0-100 ℃); Conventional pressure 0-1 MPa (polypropylene material support limit 0-500 kPa)

Contact fluid material: SC210G-C (sensor: 316 stainless steel, fluororubber O-ring, polytetrafluoroethylene; Main body: 316 stainless steel, polypropylene); SC210G-D (sensor: platinum, glass, fluororubber O-ring; Subject is the same as Type C)

Temperature compensation: Built in Pt1000 temperature sensor, used to calibrate the effect of temperature on conductivity

Protection level: JIS C0920 waterproof (equivalent to NEMA 4), suitable for humid environments in industrial sites

Safety regulations and usage restrictions

1. Core security principles

Prohibited unauthorized operation: Only use according to the instructions in the manual, unauthorized modification of the device will result in loss of protective function; Repairs require Yokogawa certified spare parts, unauthorized modifications are prohibited

Static electricity and explosion prevention: Non metallic components may carry static electricity, and it is necessary to avoid static electricity generation operations such as wiping with dry cloth; The junction box shell is made of aluminum, which can avoid impact, friction, and sparks; Must comply with explosion-proof standards such as IEC 60079-11 (TIIS certified models cannot be connected)

Temperature limit: The maximum process temperature needs to be determined based on the supporting analyzer (FLXA202/FLXA21/SC202S) and temperature level (T1-T6). For example, under T5 level, FLXA202/FLXA21 with SC210G-C has a maximum process temperature of 54 ℃ at an ambient temperature of 40 ℃, and with SC210G-D it is 95 ℃ (note that the upper limit of T5 level is 100 ℃)

2. Manual usage guidelines

It needs to be handed over to the end user and properly stored, and unauthorized copying/dissemination is prohibited; Yokogawa reserves the right to improve manuals and equipment without prior notice

The manual only describes the device functions and does not guarantee adaptation to specific user scenarios; The equipment is provided as is, and Yokogawa is not responsible for unforeseeable direct/indirect losses

Installation and Wiring Guide

1. Installation type and preparation

SC210G is divided into direct insertion type (installed in process pipelines) and flow type (sample introduced through sampling tubes). Before installation, it is necessary to:

Site selection requirements: easy maintenance, no bubbles in the solution (to avoid measurement deviation), stable liquid level, and away from high temperature (>50 ℃) pipelines

Preprocessing: For direct insertion type, corresponding thread holes (such as R1-1/2, 1-1/2 NPT) or flange holes (JIS 10K 50 RF, etc.) need to be reserved; The circulating polypropylene bracket needs to be equipped with a 50A pipe (outer diameter 60.5mm) and fixed with a bracket to prevent rupture

2. Installation steps

Direct insertion type: Threaded type requires sealing tape to be wrapped around the thread and screwed in; The flange type requires adding gaskets between the flange faces and evenly tightening 4 bolts

Flow type: fixed to the designated installation pipeline, adjustable solution inlet and outlet direction (stainless steel bracket can be adjusted horizontally, polypropylene bracket can be adjusted through the bracket direction)

Direction adjustment: Loosen the union nut of the junction box to rotate it for easy wiring (rotating without loosening the nut will damage the internal wiring)

3. Requirements for piping and wiring

Piping: Hard PVC pipes (JIS K9741, A16) for polypropylene supports, etc; 304/316 stainless steel pipes (JIS G3459, A15) are used for stainless steel brackets; Suggested flow rate<20 L/min (to prevent electrode wear caused by slurry solution), an overflow tank should be installed to remove bubbles, and a shut-off valve should be installed at the maintenance site to prevent leakage