ABB IM/C1900-RED Circular Chart Recorders

Product Description

The ABB IM/C1900-RED is a specialized model from ABB’s C1900 series of circular chart recorders, designated as the Reference Entry Device (RED) version. It is designed to record one or two process variables, such as temperature, pressure, or flow, on a rotating 10-inch circular chart. The RED model typically includes custom reference data entry features, allowing operators to mark or track reference points, thresholds, or manual annotations directly on the chart.

Technical Specifications

• Model Number: IM/C1900-RED

• Device Type: Circular Chart Recorder with Reference Entry functionality

• Chart Size: 10 inches (250 mm) diameter

• Recording Channels: 1 or 2 pens (independent channels)

• Input Signal Types:

• Thermocouples: J, K, T, R, S, etc.

• RTDs: Pt100, 3-wire

• Analog Inputs: 4–20 mA, 1–5 V, 0–10 V, millivolt

• Accuracy: ±0.25% of full scale span

• Chart Speed Options:

• Selectable from 1 hour to 7 days per full chart revolution

• Fixed or adjustable speed settings

• Reference Features:

• Custom reference line printing or markings

• Manual or automated entry zones for shift or batch annotations

• Enhanced traceability for critical process validation

• Pen System: Ink pen mechanism; field-replaceable pens

• Display Options:

• Optional digital displays for live value indication

• Paper chart provides historical trend visualization

• Power Supply:

• 90–264 V AC, 50/60 Hz

• Optional 24 V DC models available

• Operating Temperature: 0°C to +50°C

• Storage Temperature: –20°C to +70°C

• Humidity Tolerance: 10%–90% RH non-condensing

• Enclosure Protection: IP54 front panel rating

• Mounting: Panel-mountable configuration