Watson Smith P/I Converters  Type 68 683500

Type 68 P/I Converters 

This instrument convert pneumatic pressure into electrical signals for use with data loggers, computers and microprocessors. The Type 68 is a two wire pressure/current device. This use only non-critical power supplies.

» 4-20mA, 0-10V output
» Wide range of input pressures
» DIN rail mounting
» Intrinsically safe option

Watson Smith P/I Converters  Type 68 683500

The Type 68 is a two wire pressure/current device Use only non-critical power supplies and can be supplied weatherproof to IP65.

These instruments convert pneumatic pressure into electrical signals for use with data loggers,computers and microprocessors.

•DIN rail or surface mounting

•Weatherproof and Uses non-critical power supplies

•A wide range of pressure inputs available

TECHNICAL DATA

Pneumatic

•Air Supply Dry, non corrosive air or gas. The units are not suitable for continuous liquid exposure

•Air Consumption Nil

•Pressure Ranges See ordering information

•Over pressure At least 100% with negligible calibration error, except for 10bar(150psig) models which are 13.5bar

(200psig) maximum

•Connections 1/8” NPT female

Physical

•Operating Temperature -10C to +60C

•I.P. Rating IP54 (IP65 option available)

•Electromagnetic Compliant and CE marked in Compatibility accordance with the EC E.M.C. directive.

Tested to standards: BS EN50082-2: 1995 and BS EN50081-2: 1994

•Material of Construction

Casing: Extruded aluminium, zinc diecast end plates. Transducer: composite construction

PCB: epoxy glass fibre

•Mass 200g

•Mounting (1) DIN rail. clips fit TS32 and TS35 rail(2) Direct pipe mounting

•Electrical connection Standard - Klippon terminal block to accept cables upto 2.5mm2

Weatherproof - 16mm square connector to DIN43650 to accept cable upto 6mm dia with

conductors of 0.75mm2

Electrical

•Supply Voltage 9-30V continuous

•Output 4-20mA

•Voltage drop 9V min. (across unit)

•Load resistance 750ohms Max. (24V supply)

Accuracy

•Setting Error +/-0.2% FS Max.

•Hysteresis, Linearity Typically +/-0.15% +/-0.3%max.

Repeatability

•Power Supply Sensitivity+/-0.05% FS/V Max

•Temperature (over range 0 to 50C)

Coefficients -Zero <+/-0.025% FS/C

-Span <+/-0.025% FS/C

-Stability<+/-0.025 over 6 months

•Response Time <10ms for 95% step output

•Range and Zero controls +/-10% FS(minimum adjustment)

List of available models: 680100, 680110, 68043X, 68066X, 681500, 681510, 68151X, 682100, 682110, 683300, 683350, 683500, 683510, 683600, 689610