The Partlow MRC5000 is a microprocessor-based circular chart recorder with a 10-inch chart format, designed for precise industrial temperature monitoring and data logging. It delivers ±0.25% measurement accuracy and ±0.5% recording accuracy across one or two pen configurations. The unit features a 4-digit LED display, programmable keypad interface, and selectable chart speeds from 8 to 168 hours (7 days), with configurable scan rates of 1 or 3 scans per second.
The MRC5000 accepts universal sensor inputs including thermocouples (J, K, T, R, S), 3-wire RTD, mVDC, VDC, and mA/mV DC linear signals—all field-programmable without hardware changes. Output capability extends to four relay outputs (SPST or SPDT contacts rated 5A @ 115VAC resistive, with 230VAC and single-phase motor ratings available). Optional 4–20mA analog outputs and RS485 Modbus RTU serial communication are available. Programmable alarm outputs support up to two high/low limit alarms per channel.
Control modes include ON/OFF, alarm-based, PID, and manual operation, with optional profiling capability on the MRC7000 variant. The recorder operates from universal 90–264 VAC 50/60 Hz power (maximum 18VA), or optionally from 20–50 VDC/AC for low-power installations.
Physical design prioritizes compact panel integration: dimensions are 14″ H × 14″ W × 3.8″ D with a standard 12.7″ square cutout, 2.5″ panel depth, and 1.3″ front protrusion. The injection-molded Noryl enclosure supports NEMA 3 standard protection, with NEMA 4X optional. Panel or surface mounting accommodates tilts up to 30° fore/aft and 10° lateral from vertical. Disposable fiber-tipped pens (red, green) ship with the unit. Weight is 15 lbs (6.8 kg).
Technical Specifications
• Measurement accuracy: ±0.25%
• Recording accuracy: ±0.5%
• Chart size: 10 inches
• Chart speeds: 8, 12, 24, 48 hours, 7 days
• Data scan rate: 1 or 3 scans per second
• Display: 4-digit LED
• Input channels: 1 to 2
• Output relays: 1 to 4 (up to 8 with MRC7000)
• Relay ratings: 5A @ 115VAC resistive; 2.5A @ 230VAC; 1/8HP @ 230VAC single-phase; 250VA @ 115/230V
• Optional 4–20mA outputs: up to 4 channels
• Alarm outputs: up to 2 programmable per channel (high/low)
– Key Features
• Universal sensor support: thermocouples (J, K, T, R, S), 3-wire RTD, mVDC, VDC, mA/mV DC linear
• Field-programmable input type selection
• Power supply: 90–264 VAC 50/60 Hz (18VA max); optional 20–50 VDC/AC
• Control modes: ON/OFF, alarm, PID, manual
• Optional RS485 Modbus RTU serial communication
• Panel-mount or surface-mount configuration
• NEMA 3 standard; NEMA 4X available
• Operating tilt range: ±30° fore/aft, ±10° lateral
– Typical Applications
Industrial temperature monitoring, data logging, process recording, alarm-based control, and thermal profiling in manufacturing, laboratory, and quality assurance environments.
– Compatibility & Integration
RS485 Modbus RTU serial interface (optional) enables network integration. Thermocouple and RTD inputs integrate directly with standard industrial sensors. Relay and 4–20mA outputs interface with external alarm systems, controllers, and data acquisition platforms.
