Crowcon Tetra User Manual

XI. Accessories and spare parts
Accessory list
Crowcon
part number Description
C01841 Aspirator Plate and Gasket
C01846 Aspirator assembly for pumped units
C01847 Aspirator assembly, non pumped units
C01876 Tetra Gas Test Accessory Kit for pumped units
C01877 Tetra Gas Test Accessory Kit for non-pumped units.
Refer to Section VII for applicability
C01893 Tetra Gas Test Accessory Kit. Refer to Section VII for applicability
C01874 Calibration Flow Plate for pumped units.
Refer to Section VII for applicability
C01875 Calibration Flow Plate for non-pumped units.
Refer to Section VII for applicability
C011005 Calibration Flow Plate. Refer to Section VII for applicability.
C03328 Quad Gas mixture for Gas Test Accessory Kit, 34 litre bottle 50%LEL
methane, 250ppm carbon monoxide, 15ppm hydrogen sulphide,
18% oxygen balance nitrogen.
Calibration gas contact Crowcon
- required gases depend on sensor combination
Battery charger power supplies
E01839 External PSU for Tetra Charger, UK 230 V 50 Hz
E01840 External PSU for Tetra Charger, US 110 V 60 Hz
E01841 External PSU for Tetra Charger, Euro 230 V 50Hz
E01860 230 V in line charger, no plug fitted.
E01861 110 V in line charger, no plug fitted.
i-modules:
S011424* 0-100% LEL methane
S011436* 0-100% LEL propane
S011437* 0-100% LEL pentane
S011439* 0-100% LEL butane
S011440* 0-100% LEL ethylene
*There are alternative combustible sensors for different applications. Contact Crowcon with the
instrument Serial No. to check correct sensor type.
i-modules cont:
S011423 0-25% oxygen O2
S011421 0-50 ppm hydrogen sulphide H2S
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Tetra Accessories and spare parts

Crowcon Tetra Specifications

General

Operating Temperature	-20°C to +50°C
Type	Portable Gas Detector
Gases Detected	Oxygen, Carbon Monoxide, Hydrogen Sulfide
Display	LCD
Ingress Protection	IP65
Sensor Types	Electrochemical