Furnace Atmosphere Analyzers for Reductive Atmosphere Furnaces (CP Meters)

CP Meters

CP-D/CP-DR Probe Transmitter
CP-D/CP-DR Probe Transmitter
CPM Arithmetic Unit / CPC-D Indicating Controller
CPM Arithmetic Unit / CPC-D Indicating Controller

Features

  • Ideal for atmosphere control based on carbon potential (CP) values
  • A control sensor featuring long operating life, fast response, and stable readings

Usage

  • Endothermic gas generators, continuous furnaces, and batch furnaces for carburizing processes
  • Quenching furnaces
  • Annealing furnaces

Specifications

Model CP-D/CP-DR Probe Transmitter
Measuring Principle Zirconia type concentration cell method
Reference Air Flow Rate 30–50 cc/min
Burnout Air Flow Rate 2–5 L/min
Operating Temperature
(Furnace Temperature)
800–960 °C
Terminal Ambient Temperature −10 to 120 °C
Measuring Range 1 to 10-25 O2 atm (up to the austenitic region)
Model CPM Arithmetic Unit
Input Signal O2 Sensor Input 1 point, DC −100 to 1,500 mV
TC Input 1 point, Type R or K (selectable via system data)
CO Meter Input 1 point, DC 4–20 mA or DC 0–1 V (isolated signal, selectable via system data)
Sensor Check 1 point each, voltage-free contact signal, Contact rating: DC 12 V, 2 mA
CO Meter Input Availability
Output Display Hold
Output Signal Analog Output 2 points, DC 4–20 mA (load resistance ≤400 Ω)
No. 1: CP calculation output No. 2: Temperature, CO, CO2, or O2 sensor input (selectable via system data)
Alarm Output 2 points Contact rating: Resistive load: AC 110 V, 0.5 A / DC 24 V, 1 A
Inductive load: AC 110 V, 0.2 A / DC 24 V, 0.3 A
Power Supply AC 100–240 V, 50/60 Hz, approx. 15–20 VA
Weight Approx. 580 g
Ambient Temperature −10 to 50 °C
Ambient Humidity 10–90% RH (non-condensing)
Model CPC-D Indicating Controller
Measuring Range 28 thermocouple types, 6 DC voltage types, 1 DC current type, 14 RTD types
Temperature Unit °C, K
Accuracy Rating ±0.1% of measuring range ±1 digit
Input Sampling Cycle Approx. 0.1 seconds
Input Impedance Thermocouple: ≥1 MΩ
DC voltage: ≥1 MΩ
DC current: Approx. 250 Ω
Allowable Signal Source Resistance Thermocouple: ≤100 Ω
DC voltage (mV): ≤100 Ω
DC voltage (V): ≤300 Ω
Maximum Allowable Input Thermocouple: ≤±20 V
DC voltage: ≤±20 V
DC current: ≤±30 mA, ≤±7.5 V
RTD: ≤500 Ω, ≤±5 V
Current Output Type Output signal: 4–20 mA
Load resistance: ≤750 Ω
Voltage Output Type Output signal: 0–10 V
Output impedance: Approx. 10 Ω
Load resistance: ≥50 kΩ
Number of Alarm Points 4 points
Output Signal Relay output signal (normally open contact)
Power Supply AC 100–240 V, 50/60 Hz, approx. 15–20 VA
Mounting Method Panel mounting
External Dimensions 96 (H) × 96 (W) × 127 (D)
(Depth from panel surface: 120)
Weight Approx. 450 g
Ambient Temperature −10 to 50 °C
Ambient Humidity 10–90% RH (non-condensing)

Resources

Instruction Manuals

Product Inquiries

Please contact us via the link below for any questions about our Measuring Instrument Products.

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1, Aza Kamikobari, Inuyama, Aichi 484-8505, Japan

Energy Support Corporation is a member of the NGK Group.