Dynisco SPX2 Series

To Next Page

To Previous Page

SAFETY

via a built-in cable connector that is also connected to the conductive housing. Connect unused cable

cores or free cable ends correctly to the cable shield on both sides.

emperemper

emper

atat

urur

The SPX series of pressure transmitters can be used in media temperatures up to 400°C. If the pressure

transmitter is used in other applications, the safety and accident prevention regulations specific to that

application must be followed. Ambient temperature for the electronics housing max. +85°C in areas

that are not classified as hazardous.

Higher temperature can result in damage and malfunction. Do not install the pressure transmitter in

places where this temperature is exceeded.

Use in Hazardous Classified AreasUse in Hazardous Classified Areas

Use in Hazardous Classified Areas

Several configurations of the SPX series are designed and approved for use in hazardous

classified areas.

Units intended for installation in these areas must bear the applicableUnits intended for installation in these areas must bear the applicable

Units intended for installation in these areas must bear the applicable

approval agency label. approval agency label.

approval agency label. After installation before operating the device the user must check

that the complete installation and wiring is intrinsically safe. Care must be taken that the

power source is a certified apparatus.

The SPX series of pressure transmitters is specially designed for measuring pressure in

explosive atmospheres for Zone 0 under safety class II 1 G EEx ia IIC T4 (TA = -20 to + 60°C).

The SPX is also approved for hazardous area Zone 1 under safety class II 2 G

EEx ia IIC T4/T6 (T4, TA = -20 to + 85°C; T6, TA = -20 to + 50°C)

The maximum Tmed (medium temperature) for temperature class T6 is 60°C and for T4 is 85°C. The

medium temperature for the SPX is defined as the temperature of the pressure transmission fluid below

the measuring diaphragm. (See figure 1-1.) This temperature can be verified by measuring the surface

temperature at the base of the electronics housing.

For category 1 (Zone 0) installations, care must be taken to avoid the danger of ignition due to

electrostatic discharges (ESD). The chance for static build up on the cable surface during normal

conditions of use, maintenance and cleaning must be eliminated. Install the cable in an appropriate

conduit or use some other cable reliable installation technique to avoid static electricity at the cable

surface. The free length of the cable must be below 5 cm. If metallic conduits are used they need to be

grounded. If nonmetallic conduits are used they need to be antistatic (< 1G Ohm/cm

The SPX series of pressure transmitters are also designed for explosion proof areas

approved by Factory Mutual and CSA for Class I, Division 1, Groups A, B, C & D.

Deviation of the supply voltage from the value given in the technical specifications, or

reverse polarity, can damage the pressure transmitter and cause malfunctions that can

pose a risk of explosion. Operate only with an

intrinsically safe intrinsically safe

intrinsically safe, EMC compliant power

supply with the following specifications when employing the pressure 4-20 mA output:

Dynisco SPX2 Series - Page 12