APG500 resistance pirani gauge precise transmitter

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Technical Information:

Measuring principle  Based on resistance (pirani) heat transfer physical properties      

Pipe Interface             DN 16 ISO

Measuring range     5×10^-2~ 1.0×10⁵Pa(only adapt to air, nitrogen, oxygen,

                                carbon monoxide)

Accuracy(nitrogen)    1×10^-1 ~5.0×10³Pa      numerical reading±35%

                                  5×10^-2 ~ 1×10^-1Pa        numerical reading±50%

                                 5×10³ ~ 1×10⁵ Pa        numerical reading±50%

Repetitiveness          1×10^-1 ~5×10³Pa         numerical reading±5%

Output signal (measuring signal)

Output voltage              +1.9 ~ +10.0 VDC

Vacuum voltage ratio             logarithm 1.286V/every order of magnitude

False signal         0 ~ +0.5 VDC(Filament fracture)

Output impedance            2×5.1 Ohm

Small impedance            10 kOhm

Reaction time             100ms

Transmitter identification         27.0 kOhm,           

Regulation     two holes of two sides of the transmitter is used to regulate full span(ATM atmospheric condition)and zero point(HV high vacuum condition)

Power supply

Transmitter input voltage         +13.5 ~ +30 VDC

Ripple wave                ≤5%Vpp

Current                  <300mA(starting current)

Power consumption        ≤2 W

Cable connection            FCC 68 / RJ45 electrical connector,8holes electrode

Transmitter cable            8core cable

Cable length            ≤100 m (wire diameter≥8×0.18 mm²)

Concept of ground              refer to "cable connection"

The vacuum system is connected to a public signal  connected by resistance1 0KOhm(voltage difference<45V)

Power ground and signal ground respectively

Material exposed to vacuum    tungsten, nickel ,stainless steel,DingQing rubber

Sensor wires              tungsten

permitted pressure             0.3 Mpa(absolute pressure),only for rare gas

permitted temperature          when vacuum measurement   +5~+45℃

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