9.5 Inch Circular Chart Recorder
Model RPO / RTO
9.5 inch circular chart recorder for pressure (RPO series) and temperature (RTO series), with one to three pens, ±1% FSD accuracy, a 240 mm disc chart and electric, battery or spring-wound chart drives for wall, panel, pipe or portable use.
- Category
- Chart Recorder, Recorder
Overview
About the 9.5 Inch Circular Chart Recorder RPO / RTO.
The 9.5 inch circular chart recorder draws a continuous pressure or temperature trace on a 240 mm disc chart. The RPO series records pressure through a measuring element connected to the process, while the RTO series records temperature through a bulb and capillary. Up to three pens record on the same chart, and the chart turns once every 24 hours or 7 days. With a clockwork or battery chart drive the recorder needs no mains supply, which suits pressure tests, furnaces, sterilisers and pasteurisers where a paper record of each cycle is kept.
Features
- Accuracy of ±1% FSD
- One, two or three pens: red and blue for two pens, red, blue and green for three pens
- 240 mm (9.5 in) disc charts with 40, 50, 60, 70 or 80 linear divisions
- Synchronous electric, battery or mechanical spring-wound chart drive
- 24-hour or 7-day chart rotation, other rotations on request
- Optional high and low alarms on the first pen, the second pen or both
- Glass-filled polyester resin case rated IP55, with an acrylic window
- Surface or panel mounting, with pipe-mounted and portable versions
Options
- Pressure connection: 3/8 in BSP (standard), 1/2 in BSP male or 1/2 in NPT male
- Pressure element material: brass, beryllium copper or phosphor bronze, or stainless steel
- Temperature bulbs: Type 301, 302 or 303, with an optional 1/2 in BSP male fitting
- Capillary: stainless steel, flexible stainless armour, or flexible stainless armour over stainless steel; 3 m standard, other lengths to order
- Pressure range and units, or temperature range in °C or °F, specified with the order
Applications
- Hydrostatic pressure tests
- Industrial furnaces
- Sterilisation systems
- Dairy pasteurisation
- Gas distribution systems
- Pharmaceutical process lines
LKS supplies the 9.5 inch circular chart recorder in Malaysia, with installation, calibration and after-sales support. Contact our engineers to select the ranges and chart drive and request a quotation.
Specifications
| Models | RPO10 / RPO20 / RPO30 pressure recorder (1, 2 or 3 pens); RTO10 / RTO20 / RTO30 temperature recorder (1, 2 or 3 pens) |
|---|---|
| Accuracy | ±1% FSD |
| Chart | 240 mm (9.5 in) diameter disc; 40, 50, 60, 70 or 80 linear divisions |
| Chart rotation | 24 hours or 7 days (other rotations on request) |
| Chart drive | Synchronous electric (240 V 50 Hz or 110 V 50 Hz), battery or mechanical spring wound |
| Inking system | 2 pens: red and blue; 3 pens: red, blue and green |
| Power supply | 200 … 250 V, 50 Hz or 100 … 110 V, 50 Hz (60 Hz available); battery drives use a 1.5 V type C cell; clockwork drives need no power supply |
| Controls / alarms | No control; 1st pen high and low; 2nd pen high and low; 1st and 2nd pen high and low |
| Pressure process connection | 3/8 in BSP (standard), 1/2 in BSP male or 1/2 in NPT male |
| Pressure element / connection material | Brass / beryllium copper / phosphor bronze, or stainless steel |
| Temperature bulb options | Type 301, Type 302, Type 303 |
| Temperature fitting (Type 302/303 bulbs) | None, 1/2 in BSP male or other |
| Capillary type | Stainless steel; flexible stainless armour; flexible stainless armour over stainless |
| Capillary length | 3 m standard; other lengths to order |
| Case | Glass-filled polyester resin, IP55 |
| Window | Acrylic |
| Mounting | Surface or panel; pipe-mounted and portable options |
| Ambient temperature | −20 … 50 °C |
| Weight | Single pen 6.5 kg; two pen 7.0 kg; three pen 7.5 kg; portable single pen 8.6 kg |
| Case dimensions (surface mounting) | 336 mm (W) × 396 mm (H) × 121 mm (D) |
Lifecycle support
Installed, calibrated and maintained.
With more than two decades in valves and instrumentation across a diverse range of industries, we keep instruments accurate and valves healthy, because valve health management is vital for plant safety.
- Installation & commissioning
- Calibration & testing
- Maintenance & overhaul
- Dismantling & replacement
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