A pre-installation review reduces commissioning delays by resolving sampling, utilities, access, integration and consumable questions before the analyser arrives. Use this checklist as a discussion structure, then apply the current installation instructions for the exact 3S configuration.
1. Measurement and method
- Parameter and exact reporting basis
- Normal range, expected low/high conditions and short peaks
- Required analysis frequency and operational purpose
- Relevant comparison laboratory or site method
- Known sample interferences or process chemicals
2. Sampling point
- Reason the point represents the process decision
- Sample pressure, available flow and temperature
- Solids, colour and variability
- Distance, transport delay, dead legs and flushing
- Behaviour during shutdown, cleaning or loss of flow
3. Sample conditioning and waste
Confirm whether the application needs a fast loop, reservoir, pressure reduction, cooling, settling, dilution or filtration. Check that conditioning does not remove the fraction the method is intended to measure. The 3S-CL specification describes sample delivery to a reservoir at atmospheric pressure, with up to 500 mL/min flowing to overflow and 6 mm outside-diameter flexible tubing. See the detailed sample-conditioning guide.
- Safe and continuously available drain route
- Access to inspect and clean reservoirs, filters and tubing
- Containment and disposal route for sample, reagents and calibration waste
- Compressed air and 1-inch NPT process connections if a selected 3S self-cleaning filtration unit requires them
4. Location and environment
- Vertical wall or rack mounting with suitable fixing structure
- Space for the 680 × 380 × 242 mm 3S-CL cabinet and service access
- Approximate 20 kg analyser weight allowed for in the mounting design
- Ambient and sample conditions within the stated 5–45°C range
- Humidity within the stated maximum 85% RH
- IP54 cabinet suitability for the proposed environment
- Protection from direct heat, freezing, flooding, corrosive atmosphere and avoidable vibration
5. Power and communications
- 110–230 VAC, 50/60 Hz, 80 VA supply, or confirmed optional 24 VDC configuration
- Isolation and electrical work suitable for the site
- Two 4–20 mA outputs, Modbus RTU RS485 / Ethernet and relay requirements mapped to the control system
- Signal scaling, alarm logic, network addressing and responsibility for integration agreed before commissioning
6. Reagents, standards and consumables
- Correct method-specific reagent set and calibration standard available
- Storage conditions and shelf-life controls agreed
- Safe lifting, handling and chemical controls in place
- Bottle positions, tubing routes and containment accessible
- Initial stock and reorder process agreed
7. Commissioning and acceptance
- Named site contact and safe access arranged
- Sample available under representative operating conditions
- Control-system engineer available where integration is in scope
- Acceptance units and comparison method agreed
- Operator familiarisation, maintenance responsibility and support route agreed
- Final configuration, calibration and commissioning records retained
What to send before a site review
Provide a process description, sample analysis, expected range, photographs or layout drawing, utility details, proposed mounting location, drain route and integration requirements. Early visibility of constraints is usually more valuable than a generic instrument schedule.
Use the 3S enquiry form to discuss a new installation, or visit 3S product support for an installed analyser.