Records Flow, pH, Level, or any Analog or Temperature Value.
circular chart recorders FEATURES:
  • 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 Product Description
Circular Chart Recorders


The CR500, Circular Chart Recorder, with a water level sensor.

The Global Water CR500 series circular chart recorders provide reliable, accurate records for your analog and temperature data.  The circular chart recorder’s universal configurable input(s) will accept virtually any type of thermocouple, RTD, 4-20mA, or analog sensors.  With its easy to use, self documenting configuration chart, the circular chart recorder provides quick and trouble-free programming.  The circular chart recorders also let you save money and avoid confusion by using standard 10" Honeywell® or Partlow® chart paper.

To protect your process information, the CR500 circular chart recorders come standard with a battery backup option, which provides continuous recording for up to 48 hours in the event of power loss.  The circular chart recorders are not recommended for outdoor use due to possible paper damage.  Choose our optional built-in transmitter power supply to power virtually any analog sensor, including pressure, level, pH, flow, or any number of other sensors, directly from the circular chart recorders.

Choose from standard one- or two-pen units and circular paper chart recorders with programmable alarm relay outputs.  Each of our CR500 circular chart recorders includes chart pen(s), a 9 VDC backup battery, configuration charts, and a box of starter chart paper. 

Circular Chart Recorders Specifications

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

Circular Chart Recorders Options

CR500-01 Circular Chart Recorder
Circular chart recorder includes one pen inputs and no relay outputs.
CR500-02 Circular Chart Recorder
Circular chart recorder includes one pen inputs and one relay outputs.
CR500-03 Circular Chart Recorder
Circular chart recorder includes two pen inputs and no relay outputs.
CR500-04 Circular Chart Recorder
Circular chart recorder includes two pen inputs and two relay outputs.
CR500-XPWR Transmitter Power Supply
120VAC power supply for circular chart recorder.  NOTE: This option must be purchased if any powered sensor (ie. 4-20 mA input) is to be attached to the circular chart recorder.
Circular Chart Recorder Pens
CP400 Red Circular Chart Recorder Pen
Pen for input 1, 6 chart paper pens per pack.
CP401 Blue Circular Chart Recorder Pen
Pen for input 2, 6 chart paper pens per pack.
CP402 Green Circular Chart Recorder Pen
Pen for input 2, 6 chart paper pens per pack.
Circular Chart Recorder Chart Paper
Model # Range Rotation Speed Per Pack
CP001 0-100 24 Hr 100
CP002 0-100 7 Day 100
CP003 0-5 24 Hr 100
CP004 0-5 7 Day 100
CP005 0-10 24 Hr 100
CP006 0-10 7 Day 100
CP007 0-14 24 Hr 100
CP008 0-14 7 Day 100
NOTE: A three box minimum order is required.
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Route the sensor output to two different monitoring devices.
GL500-2-1 Datalogger
Specify Serial or USB version when ordering.  Features 2 analog channels and 1 pulse channel.  Includes two internal 9V batteries, Windows-based Global Water Datalogger Software, and PDA software for the CE and Mobile operating systems.
GL500-7-2 Multichannel Data Logger
Features 7 analog channels and 2 pulse channels, USB and serial communication port, and includes software and cables.  Requires an external 12 VDC power source.
WQ Water Quality Sensors    
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