East West Infiniti Pvt Ltd.

...where electronic technology speaks

CR500 Circular Chart Recorders

Records Flow, pH, Level, or any Analog or Temperature Value.


  • Accepts any powered analog signal or temperature input
  • Quick and easy setup even without a manual
  • Uses standard, brand name chart paper
  • Built in backup battery provides up to 48 hrs of recording during power loss
  • Self documents your setup for future reference
  • Optional transmitter power supply
  • UL, CUL, CE


Circular Chart Recorders Power

Line Voltage: 110/220VAC, 50/60Hz
Power Consumption: 15VA maximum
Battery Backup: Standard 9 volt, up to 48 hours of operation
Error Protection: De-energized during sensor break
NOTE: The CR500 circular chart recorders are not recommended for use in remote non-powered areas.

Circular Chart Recorders Inputs

Thermocouple (T/C)
Type J, K, T, R, B, S, RTD: PT 100 ohm RTD (385 curve)
Linear: 4-20 mA
Range: Per table in manual
Common Mode Rejection: > 120dB at 60 Hz
Cold Junction Accuracy: ± 0.2°C @ 25°C ambient
Ambient Error: ± 0.01% span/°C from 25°C ambient
Isolation: Inputs share common ground on 2-pen units
Input: Impedance Linear = 249 ohm, TC = 470Kohm

Circular Chart Recorders Recording

Chart Size: 10"
Recording Accuracy: ± 0.5% of span (100 division span)
Recording Error: ± 5% of span
Recording Repeatability: ± 1%
Sensor Break: Full scale pen < 10 seconds
Chart Speed: Configurable
Input Filtering: Programmable up to 120 seconds

Circular Chart Recorders Environmental & Physical

Operating Temperature: 0 to 60°C
Storage Temperature: -40 to 65°C
Humidity: 0-90% RH (non-condensing)
Vibration: 0.3 to 100Hz @ 0.2g
Mounting: ± 20 degrees of vertical, ± 10 degrees of horizontal
Moldings: Fire retardant Noryl w/acrylic window
Panel Rating: Nema 3 std (Nema4 option)
Dimensions: 14.0" (H) x 14.0" (W) x 3.8" (D)
Panel Cutout: Industry Standard 12.7" x 12.7"
Weight: 7 pounds maximum

Circular Chart Recorder Relays (Optional)

Relay: DPDT, 1.0 Amps @ 120 VAC resistive
Relay Program: Process, Band, Non-latching, Latching
Hysteresis: Set at 2 units, activation is safe sided

Circular Chart Recorder Powered Sensor Option

Transmitter Power Supply: 12VDC @ 1.0A