GMP252 Carbon Dioxide Probe
3Pages

{{requestButtons}}

Catalog excerpts

GMP252 Carbon Dioxide Probe - 1

GMP252 Carbon Dioxide Probefor ppm-Level Measurements Features • Measurement range 0 ... 10 000 ppmCO2 • Intelligent, stand-alone probe with analog and digital outputs • Compatible with Indigo 200 transmitters and Vaisala Insight • Wide operating temperature range -40 ... +60 °C • IP65-classified housing • 2nd-gen proprietary CARBOCAP® technology • Full temperature and pressure compensations • Integrated temperature measurement for CO2 compensation purposes • Compensations for background gases, O2, and humidity • Sensor head heated to prevent condensation Benefits • Superior long-term stability • Reliable and accurate • Calibration certificate included GMP252 is suitable for harsh and humid CO2 measurement environments where stable and accurate ppm-level CO2 measurements are needed. GMP252 is based on Vaisala's unique, second-generation CARBOCAP technology that enables exceptional stability. A new type of infrared (IR) light source is used instead of the traditional incandescent light bulb, which extends the lifetime of GMP252. GMP252 incorporates an internal temperature sensor for compensation of the CO2 measurement according to ambient temperature. The effects of pressure and background gas can also be compensated for. The measurement range is 0 . 10 000 ppmCO2 (measurements up to 30 000 ppmCO2 are available with reduced accuracy). The operating temperature range of the probe is wide (-40 ... +60 °C (-40 ... +140 °F)), and the probe housing is classified as IP65. Condensation is prevented as the internal sensor head is heated. GMP252 is resistant to dust and most chemicals, such as, H2O2 and alcohol-based cleaning agents. Ease of Use GMP252 is a compact probe with easy and fast plug-in, plug-out installation. The surface of the probe is smooth, which makes it easy to clean. The probe provides several output options, including analog current and voltage outputs and digital RS-485 output with Modbus protocol. GMP252 can be connected to Indigo 200 series transmitters for an extended selection of outputs and configuration options. See www.vaisala.com/indigo. For easy-to-use access to field calibration, device analytics, and configuration functionality, the probe can be connected to Vaisala Insight PC Software (for Windows® 7, 8.1 and 10: see www.vaisala.com/insight). Applications GMP252 is ideal for agriculture, refrigeration, greenhouses and demanding HVAC applications where stable and accurate ppm-level CO2 measurements are ne

Open the catalog to page 1
GMP252 Carbon Dioxide Probe - 2

58 g (2.05 oz) M12 5-pin male IP65 PBT plastic PTFE Nickel plated brass 25 mm (0.98 in) 130 mm (5.12 in) (up to 30 000 ppmCO2 with reduced accuracy) Accuracy at 25 °C and 1013 hPa (incl. Repeatability and Non-Linearity) 0 ... 3000 ppmCO2 ±40 ppmCO2 Temperature Dependence 0 ... 10 000 ppmCO2 with compensation, -10 ... +50 °C ±0.05 % of reading/°C with compensation, -40 ... +60 °C < ±0.1 % of reading/°C without temperature compensation at -0.5 % of reading/°C 2000 ppmCO2 (typical) Pressure Dependence with compensation at ±0.015 % of reading/hPa Humidity Dependence with compensation, ±0.7 % of...

Open the catalog to page 2
GMP252 Carbon Dioxide Probe - 3

Digital output Over RS-485: • Modbus • Vaisala Industrial Protocol Analog output • 0 ... 5/10 V (scalable), min load 10 kQ • 0/4 ... 20 mA (scalable), max load 500 Q Operating voltage With digital output in use 12 ... 30 VDC With voltage output in use 12 ... 30 VDC With current output in use 20 ... 30 VDC Power consumption Typical (continuous operation) 0.4 W When connected to Indigo 200 transmitter Analog output 3 voltage (V) or current (mA) outputs: • 0 ... 10 VDC / 0 ... 5 VDC / 0 ... 1 VDC / 1 ... 5 VDC (min load 1kQ) • 0 . 20 mA / 4 . 20 mA (max load 500 Q) Relays 2 configurable relays...

Open the catalog to page 3

All VAISALA catalogs and technical brochures

Archived catalogs