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Fluke 721Ex — Intrinsically safe dual-sensor pressure calibrators

Fluke 721Ex — Intrinsically safe dual-sensor pressure calibrators

Fluke 721Ex is an intrinsically safe calibrator for pressure and temperature checks in gas custody-transfer systems. Two isolated sensors measure low and high static pressure with one instrument. P1 has a 16 or 36 psi upper limit; P2 offers seven upper limits from 100 to 5000 psi.
  • P1, 16xx versions: −14…+16 psi
  • P1, 36xx versions: −14…+36 psi
  • P2, xx01 versions: −12…+100 psi
  • P2, xx03 versions: −12…+300 psi
  • P2, xx05 versions: −12…+500 psi
  • Availability: On order
  • Manufacturer: Fluke
  • SKU: 01172
Price: on request
SpecificationsDescription

Description

Fluke 721Ex is an intrinsically safe calibrator for pressure and temperature checks in gas custody-transfer systems. Two isolated sensors measure low and high static pressure with one instrument. P1 has a 16 or 36 psi upper limit; P2 offers seven upper limits from 100 to 5000 psi. The instrument measures mA, tests switches on both pressure inputs and checks temperature with an optional 720RTD probe. Its backlit screen shows three inputs simultaneously. Select Ex connections, batteries and accessories according to the certificate and control drawing. Pressure comes from an external source.

Specifications

P1, 16xx versions
−14…+16 psi
P1, 36xx versions
−14…+36 psi
P2, xx01 versions
−12…+100 psi
P2, xx03 versions
−12…+300 psi
P2, xx05 versions
−12…+500 psi
P2, xx10 versions
0…1000 psi
P2, xx15 versions
0…1500 psi
P2, xx30 versions
0…3000 psi
P2, xx50 versions
0…5000 psi
Pressure sensors
2 isolated stainless-steel sensors
Pressure accuracy, 1 year
P1 and P2 ≤3000 psi: ±0.025% FS; P2 5000 psi: ±0.035% FS
mA measurement input
0…24 mA DC; 0.001 mA
mA accuracy
±(0.015% of reading + 0.002 mA)
RTD temperature input
Pt100; −40…+150 °C; 720RTD probe ordered separately
Combined uncertainty with 720RTD
±0.25 °C
Display
Large backlit graphic display; 3 inputs simultaneously
Pressure switch test
On both pressure inputs
Setup memory
5 instrument setups
Pressure connections
2 × 1/8″ NPT
Pressure source
External; no built-in pump
Ingress protection
IP40
Operating temperature
−10…+45 °C
Power supply
4 × AA; approved types according to Ex documentation
Dimensions
200 × 110 × 58 mm
Range selection
16xx or 36xx selects P1; the final 2 digits select P2
Manufacturer Ex marking
ATEX / IECEx Ex ia IIB T3 Gb; Zone 1
Ex connection conditions
Approved connections and accessories according to the certificate and control drawing

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